3098 lines
77 KiB
Perl
3098 lines
77 KiB
Perl
#!/usr/bin/env perl
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#
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# ====================================================================
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# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
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# project. The module is, however, dual licensed under OpenSSL and
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# CRYPTOGAMS licenses depending on where you obtain it. For further
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# details see http://www.openssl.org/~appro/cryptogams/.
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# ====================================================================
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#
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# This module implements support for Intel AES-NI extension. In
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# OpenSSL context it's used with Intel engine, but can also be used as
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# drop-in replacement for crypto/aes/asm/aes-x86_64.pl [see below for
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# details].
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#
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# Performance.
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#
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# Given aes(enc|dec) instructions' latency asymptotic performance for
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# non-parallelizable modes such as CBC encrypt is 3.75 cycles per byte
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# processed with 128-bit key. And given their throughput asymptotic
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# performance for parallelizable modes is 1.25 cycles per byte. Being
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# asymptotic limit it's not something you commonly achieve in reality,
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# but how close does one get? Below are results collected for
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# different modes and block sized. Pairs of numbers are for en-/
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# decryption.
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#
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# 16-byte 64-byte 256-byte 1-KB 8-KB
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# ECB 4.25/4.25 1.38/1.38 1.28/1.28 1.26/1.26 1.26/1.26
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# CTR 5.42/5.42 1.92/1.92 1.44/1.44 1.28/1.28 1.26/1.26
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# CBC 4.38/4.43 4.15/1.43 4.07/1.32 4.07/1.29 4.06/1.28
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# CCM 5.66/9.42 4.42/5.41 4.16/4.40 4.09/4.15 4.06/4.07
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# OFB 5.42/5.42 4.64/4.64 4.44/4.44 4.39/4.39 4.38/4.38
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# CFB 5.73/5.85 5.56/5.62 5.48/5.56 5.47/5.55 5.47/5.55
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#
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# ECB, CTR, CBC and CCM results are free from EVP overhead. This means
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# that otherwise used 'openssl speed -evp aes-128-??? -engine aesni
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# [-decrypt]' will exhibit 10-15% worse results for smaller blocks.
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# The results were collected with specially crafted speed.c benchmark
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# in order to compare them with results reported in "Intel Advanced
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# Encryption Standard (AES) New Instruction Set" White Paper Revision
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# 3.0 dated May 2010. All above results are consistently better. This
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# module also provides better performance for block sizes smaller than
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# 128 bytes in points *not* represented in the above table.
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#
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# Looking at the results for 8-KB buffer.
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#
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# CFB and OFB results are far from the limit, because implementation
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# uses "generic" CRYPTO_[c|o]fb128_encrypt interfaces relying on
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# single-block aesni_encrypt, which is not the most optimal way to go.
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# CBC encrypt result is unexpectedly high and there is no documented
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# explanation for it. Seemingly there is a small penalty for feeding
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# the result back to AES unit the way it's done in CBC mode. There is
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# nothing one can do and the result appears optimal. CCM result is
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# identical to CBC, because CBC-MAC is essentially CBC encrypt without
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# saving output. CCM CTR "stays invisible," because it's neatly
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# interleaved wih CBC-MAC. This provides ~30% improvement over
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# "straghtforward" CCM implementation with CTR and CBC-MAC performed
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# disjointly. Parallelizable modes practically achieve the theoretical
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# limit.
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#
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# Looking at how results vary with buffer size.
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#
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# Curves are practically saturated at 1-KB buffer size. In most cases
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# "256-byte" performance is >95%, and "64-byte" is ~90% of "8-KB" one.
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# CTR curve doesn't follow this pattern and is "slowest" changing one
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# with "256-byte" result being 87% of "8-KB." This is because overhead
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# in CTR mode is most computationally intensive. Small-block CCM
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# decrypt is slower than encrypt, because first CTR and last CBC-MAC
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# iterations can't be interleaved.
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#
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# Results for 192- and 256-bit keys.
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#
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# EVP-free results were observed to scale perfectly with number of
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# rounds for larger block sizes, i.e. 192-bit result being 10/12 times
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# lower and 256-bit one - 10/14. Well, in CBC encrypt case differences
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# are a tad smaller, because the above mentioned penalty biases all
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# results by same constant value. In similar way function call
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# overhead affects small-block performance, as well as OFB and CFB
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# results. Differences are not large, most common coefficients are
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# 10/11.7 and 10/13.4 (as opposite to 10/12.0 and 10/14.0), but one
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# observe even 10/11.2 and 10/12.4 (CTR, OFB, CFB)...
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# January 2011
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#
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# While Westmere processor features 6 cycles latency for aes[enc|dec]
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# instructions, which can be scheduled every second cycle, Sandy
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# Bridge spends 8 cycles per instruction, but it can schedule them
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# every cycle. This means that code targeting Westmere would perform
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# suboptimally on Sandy Bridge. Therefore this update.
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#
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# In addition, non-parallelizable CBC encrypt (as well as CCM) is
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# optimized. Relative improvement might appear modest, 8% on Westmere,
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# but in absolute terms it's 3.77 cycles per byte encrypted with
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# 128-bit key on Westmere, and 5.07 - on Sandy Bridge. These numbers
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# should be compared to asymptotic limits of 3.75 for Westmere and
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# 5.00 for Sandy Bridge. Actually, the fact that they get this close
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# to asymptotic limits is quite amazing. Indeed, the limit is
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# calculated as latency times number of rounds, 10 for 128-bit key,
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# and divided by 16, the number of bytes in block, or in other words
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# it accounts *solely* for aesenc instructions. But there are extra
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# instructions, and numbers so close to the asymptotic limits mean
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# that it's as if it takes as little as *one* additional cycle to
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# execute all of them. How is it possible? It is possible thanks to
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# out-of-order execution logic, which manages to overlap post-
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# processing of previous block, things like saving the output, with
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# actual encryption of current block, as well as pre-processing of
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# current block, things like fetching input and xor-ing it with
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# 0-round element of the key schedule, with actual encryption of
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# previous block. Keep this in mind...
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#
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# For parallelizable modes, such as ECB, CBC decrypt, CTR, higher
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# performance is achieved by interleaving instructions working on
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# independent blocks. In which case asymptotic limit for such modes
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# can be obtained by dividing above mentioned numbers by AES
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# instructions' interleave factor. Westmere can execute at most 3
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# instructions at a time, meaning that optimal interleave factor is 3,
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# and that's where the "magic" number of 1.25 come from. "Optimal
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# interleave factor" means that increase of interleave factor does
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# not improve performance. The formula has proven to reflect reality
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# pretty well on Westmere... Sandy Bridge on the other hand can
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# execute up to 8 AES instructions at a time, so how does varying
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# interleave factor affect the performance? Here is table for ECB
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# (numbers are cycles per byte processed with 128-bit key):
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#
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# instruction interleave factor 3x 6x 8x
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# theoretical asymptotic limit 1.67 0.83 0.625
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# measured performance for 8KB block 1.05 0.86 0.84
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#
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# "as if" interleave factor 4.7x 5.8x 6.0x
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#
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# Further data for other parallelizable modes:
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#
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# CBC decrypt 1.16 0.93 0.93
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# CTR 1.14 0.91 n/a
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#
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# Well, given 3x column it's probably inappropriate to call the limit
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# asymptotic, if it can be surpassed, isn't it? What happens there?
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# Rewind to CBC paragraph for the answer. Yes, out-of-order execution
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# magic is responsible for this. Processor overlaps not only the
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# additional instructions with AES ones, but even AES instuctions
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# processing adjacent triplets of independent blocks. In the 6x case
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# additional instructions still claim disproportionally small amount
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# of additional cycles, but in 8x case number of instructions must be
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# a tad too high for out-of-order logic to cope with, and AES unit
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# remains underutilized... As you can see 8x interleave is hardly
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# justifiable, so there no need to feel bad that 32-bit aesni-x86.pl
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# utilizies 6x interleave because of limited register bank capacity.
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#
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# Higher interleave factors do have negative impact on Westmere
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# performance. While for ECB mode it's negligible ~1.5%, other
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# parallelizables perform ~5% worse, which is outweighed by ~25%
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# improvement on Sandy Bridge. To balance regression on Westmere
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# CTR mode was implemented with 6x aesenc interleave factor.
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# April 2011
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#
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# Add aesni_xts_[en|de]crypt. Westmere spends 1.33 cycles processing
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# one byte out of 8KB with 128-bit key, Sandy Bridge - 0.97. Just like
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# in CTR mode AES instruction interleave factor was chosen to be 6x.
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######################################################################
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# For reference, AMD Bulldozer spends 5.77 cycles per byte processed
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# with 128-bit key in CBC encrypt and 0.76 cycles in CBC decrypt, 0.70
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# in ECB, 0.94 in CTR, 0.95 in XTS... This means that aes[enc|dec]
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# instruction latency is 9 cycles and that they can be issued every
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# cycle.
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$PREFIX="aesni"; # if $PREFIX is set to "AES", the script
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# generates drop-in replacement for
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# crypto/aes/asm/aes-x86_64.pl:-)
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$flavour = shift;
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$output = shift;
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if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
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$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
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die "can't locate x86_64-xlate.pl";
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open STDOUT,"| \"$^X\" $xlate $flavour $output";
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$movkey = $PREFIX eq "aesni" ? "movups" : "movups";
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@_4args=$win64? ("%rcx","%rdx","%r8", "%r9") : # Win64 order
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("%rdi","%rsi","%rdx","%rcx"); # Unix order
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$code=".text\n";
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$rounds="%eax"; # input to and changed by aesni_[en|de]cryptN !!!
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# this is natural Unix argument order for public $PREFIX_[ecb|cbc]_encrypt ...
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$inp="%rdi";
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$out="%rsi";
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$len="%rdx";
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$key="%rcx"; # input to and changed by aesni_[en|de]cryptN !!!
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$ivp="%r8"; # cbc, ctr, ...
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$rnds_="%r10d"; # backup copy for $rounds
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$key_="%r11"; # backup copy for $key
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# %xmm register layout
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$rndkey0="%xmm0"; $rndkey1="%xmm1";
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$inout0="%xmm2"; $inout1="%xmm3";
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$inout2="%xmm4"; $inout3="%xmm5";
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$inout4="%xmm6"; $inout5="%xmm7";
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$inout6="%xmm8"; $inout7="%xmm9";
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$in2="%xmm6"; $in1="%xmm7"; # used in CBC decrypt, CTR, ...
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$in0="%xmm8"; $iv="%xmm9";
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# Inline version of internal aesni_[en|de]crypt1.
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#
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# Why folded loop? Because aes[enc|dec] is slow enough to accommodate
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# cycles which take care of loop variables...
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{ my $sn;
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sub aesni_generate1 {
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my ($p,$key,$rounds,$inout,$ivec)=@_; $inout=$inout0 if (!defined($inout));
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++$sn;
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$code.=<<___;
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$movkey ($key),$rndkey0
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$movkey 16($key),$rndkey1
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___
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$code.=<<___ if (defined($ivec));
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xorps $rndkey0,$ivec
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lea 32($key),$key
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xorps $ivec,$inout
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___
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$code.=<<___ if (!defined($ivec));
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lea 32($key),$key
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xorps $rndkey0,$inout
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___
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$code.=<<___;
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.Loop_${p}1_$sn:
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aes${p} $rndkey1,$inout
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dec $rounds
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$movkey ($key),$rndkey1
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lea 16($key),$key
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jnz .Loop_${p}1_$sn # loop body is 16 bytes
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aes${p}last $rndkey1,$inout
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___
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}}
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# void $PREFIX_[en|de]crypt (const void *inp,void *out,const AES_KEY *key);
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#
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{ my ($inp,$out,$key) = @_4args;
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$code.=<<___;
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.globl ${PREFIX}_encrypt
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.type ${PREFIX}_encrypt,\@abi-omnipotent
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.align 16
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${PREFIX}_encrypt:
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movups ($inp),$inout0 # load input
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mov 240($key),$rounds # key->rounds
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___
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&aesni_generate1("enc",$key,$rounds);
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$code.=<<___;
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movups $inout0,($out) # output
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ret
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.size ${PREFIX}_encrypt,.-${PREFIX}_encrypt
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.globl ${PREFIX}_decrypt
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.type ${PREFIX}_decrypt,\@abi-omnipotent
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.align 16
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${PREFIX}_decrypt:
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movups ($inp),$inout0 # load input
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mov 240($key),$rounds # key->rounds
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___
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&aesni_generate1("dec",$key,$rounds);
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$code.=<<___;
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movups $inout0,($out) # output
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ret
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.size ${PREFIX}_decrypt, .-${PREFIX}_decrypt
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___
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}
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# _aesni_[en|de]cryptN are private interfaces, N denotes interleave
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# factor. Why 3x subroutine were originally used in loops? Even though
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# aes[enc|dec] latency was originally 6, it could be scheduled only
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# every *2nd* cycle. Thus 3x interleave was the one providing optimal
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# utilization, i.e. when subroutine's throughput is virtually same as
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# of non-interleaved subroutine [for number of input blocks up to 3].
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# This is why it makes no sense to implement 2x subroutine.
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# aes[enc|dec] latency in next processor generation is 8, but the
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# instructions can be scheduled every cycle. Optimal interleave for
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# new processor is therefore 8x...
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sub aesni_generate3 {
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my $dir=shift;
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# As already mentioned it takes in $key and $rounds, which are *not*
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# preserved. $inout[0-2] is cipher/clear text...
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$code.=<<___;
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.type _aesni_${dir}rypt3,\@abi-omnipotent
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.align 16
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_aesni_${dir}rypt3:
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$movkey ($key),$rndkey0
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shr \$1,$rounds
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$movkey 16($key),$rndkey1
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lea 32($key),$key
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xorps $rndkey0,$inout0
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xorps $rndkey0,$inout1
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xorps $rndkey0,$inout2
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$movkey ($key),$rndkey0
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.L${dir}_loop3:
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aes${dir} $rndkey1,$inout0
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aes${dir} $rndkey1,$inout1
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dec $rounds
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aes${dir} $rndkey1,$inout2
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$movkey 16($key),$rndkey1
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aes${dir} $rndkey0,$inout0
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aes${dir} $rndkey0,$inout1
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lea 32($key),$key
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aes${dir} $rndkey0,$inout2
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$movkey ($key),$rndkey0
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jnz .L${dir}_loop3
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aes${dir} $rndkey1,$inout0
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aes${dir} $rndkey1,$inout1
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aes${dir} $rndkey1,$inout2
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aes${dir}last $rndkey0,$inout0
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aes${dir}last $rndkey0,$inout1
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aes${dir}last $rndkey0,$inout2
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ret
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.size _aesni_${dir}rypt3,.-_aesni_${dir}rypt3
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___
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}
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# 4x interleave is implemented to improve small block performance,
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# most notably [and naturally] 4 block by ~30%. One can argue that one
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# should have implemented 5x as well, but improvement would be <20%,
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# so it's not worth it...
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sub aesni_generate4 {
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my $dir=shift;
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# As already mentioned it takes in $key and $rounds, which are *not*
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# preserved. $inout[0-3] is cipher/clear text...
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$code.=<<___;
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.type _aesni_${dir}rypt4,\@abi-omnipotent
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.align 16
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_aesni_${dir}rypt4:
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$movkey ($key),$rndkey0
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shr \$1,$rounds
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$movkey 16($key),$rndkey1
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lea 32($key),$key
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xorps $rndkey0,$inout0
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xorps $rndkey0,$inout1
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xorps $rndkey0,$inout2
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xorps $rndkey0,$inout3
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$movkey ($key),$rndkey0
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.L${dir}_loop4:
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aes${dir} $rndkey1,$inout0
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aes${dir} $rndkey1,$inout1
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dec $rounds
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aes${dir} $rndkey1,$inout2
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aes${dir} $rndkey1,$inout3
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$movkey 16($key),$rndkey1
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aes${dir} $rndkey0,$inout0
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aes${dir} $rndkey0,$inout1
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lea 32($key),$key
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aes${dir} $rndkey0,$inout2
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aes${dir} $rndkey0,$inout3
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$movkey ($key),$rndkey0
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jnz .L${dir}_loop4
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aes${dir} $rndkey1,$inout0
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aes${dir} $rndkey1,$inout1
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aes${dir} $rndkey1,$inout2
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aes${dir} $rndkey1,$inout3
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aes${dir}last $rndkey0,$inout0
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aes${dir}last $rndkey0,$inout1
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aes${dir}last $rndkey0,$inout2
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aes${dir}last $rndkey0,$inout3
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ret
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.size _aesni_${dir}rypt4,.-_aesni_${dir}rypt4
|
||
___
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}
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sub aesni_generate6 {
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my $dir=shift;
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# As already mentioned it takes in $key and $rounds, which are *not*
|
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# preserved. $inout[0-5] is cipher/clear text...
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$code.=<<___;
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||
.type _aesni_${dir}rypt6,\@abi-omnipotent
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.align 16
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_aesni_${dir}rypt6:
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$movkey ($key),$rndkey0
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shr \$1,$rounds
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$movkey 16($key),$rndkey1
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lea 32($key),$key
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xorps $rndkey0,$inout0
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pxor $rndkey0,$inout1
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aes${dir} $rndkey1,$inout0
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pxor $rndkey0,$inout2
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aes${dir} $rndkey1,$inout1
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pxor $rndkey0,$inout3
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aes${dir} $rndkey1,$inout2
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pxor $rndkey0,$inout4
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aes${dir} $rndkey1,$inout3
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pxor $rndkey0,$inout5
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dec $rounds
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aes${dir} $rndkey1,$inout4
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$movkey ($key),$rndkey0
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aes${dir} $rndkey1,$inout5
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jmp .L${dir}_loop6_enter
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.align 16
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.L${dir}_loop6:
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aes${dir} $rndkey1,$inout0
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aes${dir} $rndkey1,$inout1
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dec $rounds
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aes${dir} $rndkey1,$inout2
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aes${dir} $rndkey1,$inout3
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aes${dir} $rndkey1,$inout4
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aes${dir} $rndkey1,$inout5
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.L${dir}_loop6_enter: # happens to be 16-byte aligned
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$movkey 16($key),$rndkey1
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aes${dir} $rndkey0,$inout0
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aes${dir} $rndkey0,$inout1
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lea 32($key),$key
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aes${dir} $rndkey0,$inout2
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aes${dir} $rndkey0,$inout3
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aes${dir} $rndkey0,$inout4
|
||
aes${dir} $rndkey0,$inout5
|
||
$movkey ($key),$rndkey0
|
||
jnz .L${dir}_loop6
|
||
|
||
aes${dir} $rndkey1,$inout0
|
||
aes${dir} $rndkey1,$inout1
|
||
aes${dir} $rndkey1,$inout2
|
||
aes${dir} $rndkey1,$inout3
|
||
aes${dir} $rndkey1,$inout4
|
||
aes${dir} $rndkey1,$inout5
|
||
aes${dir}last $rndkey0,$inout0
|
||
aes${dir}last $rndkey0,$inout1
|
||
aes${dir}last $rndkey0,$inout2
|
||
aes${dir}last $rndkey0,$inout3
|
||
aes${dir}last $rndkey0,$inout4
|
||
aes${dir}last $rndkey0,$inout5
|
||
ret
|
||
.size _aesni_${dir}rypt6,.-_aesni_${dir}rypt6
|
||
___
|
||
}
|
||
sub aesni_generate8 {
|
||
my $dir=shift;
|
||
# As already mentioned it takes in $key and $rounds, which are *not*
|
||
# preserved. $inout[0-7] is cipher/clear text...
|
||
$code.=<<___;
|
||
.type _aesni_${dir}rypt8,\@abi-omnipotent
|
||
.align 16
|
||
_aesni_${dir}rypt8:
|
||
$movkey ($key),$rndkey0
|
||
shr \$1,$rounds
|
||
$movkey 16($key),$rndkey1
|
||
lea 32($key),$key
|
||
xorps $rndkey0,$inout0
|
||
xorps $rndkey0,$inout1
|
||
aes${dir} $rndkey1,$inout0
|
||
pxor $rndkey0,$inout2
|
||
aes${dir} $rndkey1,$inout1
|
||
pxor $rndkey0,$inout3
|
||
aes${dir} $rndkey1,$inout2
|
||
pxor $rndkey0,$inout4
|
||
aes${dir} $rndkey1,$inout3
|
||
pxor $rndkey0,$inout5
|
||
dec $rounds
|
||
aes${dir} $rndkey1,$inout4
|
||
pxor $rndkey0,$inout6
|
||
aes${dir} $rndkey1,$inout5
|
||
pxor $rndkey0,$inout7
|
||
$movkey ($key),$rndkey0
|
||
aes${dir} $rndkey1,$inout6
|
||
aes${dir} $rndkey1,$inout7
|
||
$movkey 16($key),$rndkey1
|
||
jmp .L${dir}_loop8_enter
|
||
.align 16
|
||
.L${dir}_loop8:
|
||
aes${dir} $rndkey1,$inout0
|
||
aes${dir} $rndkey1,$inout1
|
||
dec $rounds
|
||
aes${dir} $rndkey1,$inout2
|
||
aes${dir} $rndkey1,$inout3
|
||
aes${dir} $rndkey1,$inout4
|
||
aes${dir} $rndkey1,$inout5
|
||
aes${dir} $rndkey1,$inout6
|
||
aes${dir} $rndkey1,$inout7
|
||
$movkey 16($key),$rndkey1
|
||
.L${dir}_loop8_enter: # happens to be 16-byte aligned
|
||
aes${dir} $rndkey0,$inout0
|
||
aes${dir} $rndkey0,$inout1
|
||
lea 32($key),$key
|
||
aes${dir} $rndkey0,$inout2
|
||
aes${dir} $rndkey0,$inout3
|
||
aes${dir} $rndkey0,$inout4
|
||
aes${dir} $rndkey0,$inout5
|
||
aes${dir} $rndkey0,$inout6
|
||
aes${dir} $rndkey0,$inout7
|
||
$movkey ($key),$rndkey0
|
||
jnz .L${dir}_loop8
|
||
|
||
aes${dir} $rndkey1,$inout0
|
||
aes${dir} $rndkey1,$inout1
|
||
aes${dir} $rndkey1,$inout2
|
||
aes${dir} $rndkey1,$inout3
|
||
aes${dir} $rndkey1,$inout4
|
||
aes${dir} $rndkey1,$inout5
|
||
aes${dir} $rndkey1,$inout6
|
||
aes${dir} $rndkey1,$inout7
|
||
aes${dir}last $rndkey0,$inout0
|
||
aes${dir}last $rndkey0,$inout1
|
||
aes${dir}last $rndkey0,$inout2
|
||
aes${dir}last $rndkey0,$inout3
|
||
aes${dir}last $rndkey0,$inout4
|
||
aes${dir}last $rndkey0,$inout5
|
||
aes${dir}last $rndkey0,$inout6
|
||
aes${dir}last $rndkey0,$inout7
|
||
ret
|
||
.size _aesni_${dir}rypt8,.-_aesni_${dir}rypt8
|
||
___
|
||
}
|
||
&aesni_generate3("enc") if ($PREFIX eq "aesni");
|
||
&aesni_generate3("dec");
|
||
&aesni_generate4("enc") if ($PREFIX eq "aesni");
|
||
&aesni_generate4("dec");
|
||
&aesni_generate6("enc") if ($PREFIX eq "aesni");
|
||
&aesni_generate6("dec");
|
||
&aesni_generate8("enc") if ($PREFIX eq "aesni");
|
||
&aesni_generate8("dec");
|
||
|
||
if ($PREFIX eq "aesni") {
|
||
########################################################################
|
||
# void aesni_ecb_encrypt (const void *in, void *out,
|
||
# size_t length, const AES_KEY *key,
|
||
# int enc);
|
||
$code.=<<___;
|
||
.globl aesni_ecb_encrypt
|
||
.type aesni_ecb_encrypt,\@function,5
|
||
.align 16
|
||
aesni_ecb_encrypt:
|
||
and \$-16,$len
|
||
jz .Lecb_ret
|
||
|
||
mov 240($key),$rounds # key->rounds
|
||
$movkey ($key),$rndkey0
|
||
mov $key,$key_ # backup $key
|
||
mov $rounds,$rnds_ # backup $rounds
|
||
test %r8d,%r8d # 5th argument
|
||
jz .Lecb_decrypt
|
||
#--------------------------- ECB ENCRYPT ------------------------------#
|
||
cmp \$0x80,$len
|
||
jb .Lecb_enc_tail
|
||
|
||
movdqu ($inp),$inout0
|
||
movdqu 0x10($inp),$inout1
|
||
movdqu 0x20($inp),$inout2
|
||
movdqu 0x30($inp),$inout3
|
||
movdqu 0x40($inp),$inout4
|
||
movdqu 0x50($inp),$inout5
|
||
movdqu 0x60($inp),$inout6
|
||
movdqu 0x70($inp),$inout7
|
||
lea 0x80($inp),$inp
|
||
sub \$0x80,$len
|
||
jmp .Lecb_enc_loop8_enter
|
||
.align 16
|
||
.Lecb_enc_loop8:
|
||
movups $inout0,($out)
|
||
mov $key_,$key # restore $key
|
||
movdqu ($inp),$inout0
|
||
mov $rnds_,$rounds # restore $rounds
|
||
movups $inout1,0x10($out)
|
||
movdqu 0x10($inp),$inout1
|
||
movups $inout2,0x20($out)
|
||
movdqu 0x20($inp),$inout2
|
||
movups $inout3,0x30($out)
|
||
movdqu 0x30($inp),$inout3
|
||
movups $inout4,0x40($out)
|
||
movdqu 0x40($inp),$inout4
|
||
movups $inout5,0x50($out)
|
||
movdqu 0x50($inp),$inout5
|
||
movups $inout6,0x60($out)
|
||
movdqu 0x60($inp),$inout6
|
||
movups $inout7,0x70($out)
|
||
lea 0x80($out),$out
|
||
movdqu 0x70($inp),$inout7
|
||
lea 0x80($inp),$inp
|
||
.Lecb_enc_loop8_enter:
|
||
|
||
call _aesni_encrypt8
|
||
|
||
sub \$0x80,$len
|
||
jnc .Lecb_enc_loop8
|
||
|
||
movups $inout0,($out)
|
||
mov $key_,$key # restore $key
|
||
movups $inout1,0x10($out)
|
||
mov $rnds_,$rounds # restore $rounds
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
movups $inout5,0x50($out)
|
||
movups $inout6,0x60($out)
|
||
movups $inout7,0x70($out)
|
||
lea 0x80($out),$out
|
||
add \$0x80,$len
|
||
jz .Lecb_ret
|
||
|
||
.Lecb_enc_tail:
|
||
movups ($inp),$inout0
|
||
cmp \$0x20,$len
|
||
jb .Lecb_enc_one
|
||
movups 0x10($inp),$inout1
|
||
je .Lecb_enc_two
|
||
movups 0x20($inp),$inout2
|
||
cmp \$0x40,$len
|
||
jb .Lecb_enc_three
|
||
movups 0x30($inp),$inout3
|
||
je .Lecb_enc_four
|
||
movups 0x40($inp),$inout4
|
||
cmp \$0x60,$len
|
||
jb .Lecb_enc_five
|
||
movups 0x50($inp),$inout5
|
||
je .Lecb_enc_six
|
||
movdqu 0x60($inp),$inout6
|
||
call _aesni_encrypt8
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
movups $inout5,0x50($out)
|
||
movups $inout6,0x60($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_enc_one:
|
||
___
|
||
&aesni_generate1("enc",$key,$rounds);
|
||
$code.=<<___;
|
||
movups $inout0,($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_enc_two:
|
||
xorps $inout2,$inout2
|
||
call _aesni_encrypt3
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_enc_three:
|
||
call _aesni_encrypt3
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_enc_four:
|
||
call _aesni_encrypt4
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_enc_five:
|
||
xorps $inout5,$inout5
|
||
call _aesni_encrypt6
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_enc_six:
|
||
call _aesni_encrypt6
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
movups $inout5,0x50($out)
|
||
jmp .Lecb_ret
|
||
#--------------------------- ECB DECRYPT ------------------------------#
|
||
.align 16
|
||
.Lecb_decrypt:
|
||
cmp \$0x80,$len
|
||
jb .Lecb_dec_tail
|
||
|
||
movdqu ($inp),$inout0
|
||
movdqu 0x10($inp),$inout1
|
||
movdqu 0x20($inp),$inout2
|
||
movdqu 0x30($inp),$inout3
|
||
movdqu 0x40($inp),$inout4
|
||
movdqu 0x50($inp),$inout5
|
||
movdqu 0x60($inp),$inout6
|
||
movdqu 0x70($inp),$inout7
|
||
lea 0x80($inp),$inp
|
||
sub \$0x80,$len
|
||
jmp .Lecb_dec_loop8_enter
|
||
.align 16
|
||
.Lecb_dec_loop8:
|
||
movups $inout0,($out)
|
||
mov $key_,$key # restore $key
|
||
movdqu ($inp),$inout0
|
||
mov $rnds_,$rounds # restore $rounds
|
||
movups $inout1,0x10($out)
|
||
movdqu 0x10($inp),$inout1
|
||
movups $inout2,0x20($out)
|
||
movdqu 0x20($inp),$inout2
|
||
movups $inout3,0x30($out)
|
||
movdqu 0x30($inp),$inout3
|
||
movups $inout4,0x40($out)
|
||
movdqu 0x40($inp),$inout4
|
||
movups $inout5,0x50($out)
|
||
movdqu 0x50($inp),$inout5
|
||
movups $inout6,0x60($out)
|
||
movdqu 0x60($inp),$inout6
|
||
movups $inout7,0x70($out)
|
||
lea 0x80($out),$out
|
||
movdqu 0x70($inp),$inout7
|
||
lea 0x80($inp),$inp
|
||
.Lecb_dec_loop8_enter:
|
||
|
||
call _aesni_decrypt8
|
||
|
||
$movkey ($key_),$rndkey0
|
||
sub \$0x80,$len
|
||
jnc .Lecb_dec_loop8
|
||
|
||
movups $inout0,($out)
|
||
mov $key_,$key # restore $key
|
||
movups $inout1,0x10($out)
|
||
mov $rnds_,$rounds # restore $rounds
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
movups $inout5,0x50($out)
|
||
movups $inout6,0x60($out)
|
||
movups $inout7,0x70($out)
|
||
lea 0x80($out),$out
|
||
add \$0x80,$len
|
||
jz .Lecb_ret
|
||
|
||
.Lecb_dec_tail:
|
||
movups ($inp),$inout0
|
||
cmp \$0x20,$len
|
||
jb .Lecb_dec_one
|
||
movups 0x10($inp),$inout1
|
||
je .Lecb_dec_two
|
||
movups 0x20($inp),$inout2
|
||
cmp \$0x40,$len
|
||
jb .Lecb_dec_three
|
||
movups 0x30($inp),$inout3
|
||
je .Lecb_dec_four
|
||
movups 0x40($inp),$inout4
|
||
cmp \$0x60,$len
|
||
jb .Lecb_dec_five
|
||
movups 0x50($inp),$inout5
|
||
je .Lecb_dec_six
|
||
movups 0x60($inp),$inout6
|
||
$movkey ($key),$rndkey0
|
||
call _aesni_decrypt8
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
movups $inout5,0x50($out)
|
||
movups $inout6,0x60($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_dec_one:
|
||
___
|
||
&aesni_generate1("dec",$key,$rounds);
|
||
$code.=<<___;
|
||
movups $inout0,($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_dec_two:
|
||
xorps $inout2,$inout2
|
||
call _aesni_decrypt3
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_dec_three:
|
||
call _aesni_decrypt3
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_dec_four:
|
||
call _aesni_decrypt4
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_dec_five:
|
||
xorps $inout5,$inout5
|
||
call _aesni_decrypt6
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
jmp .Lecb_ret
|
||
.align 16
|
||
.Lecb_dec_six:
|
||
call _aesni_decrypt6
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
movups $inout5,0x50($out)
|
||
|
||
.Lecb_ret:
|
||
ret
|
||
.size aesni_ecb_encrypt,.-aesni_ecb_encrypt
|
||
___
|
||
|
||
{
|
||
######################################################################
|
||
# void aesni_ccm64_[en|de]crypt_blocks (const void *in, void *out,
|
||
# size_t blocks, const AES_KEY *key,
|
||
# const char *ivec,char *cmac);
|
||
#
|
||
# Handles only complete blocks, operates on 64-bit counter and
|
||
# does not update *ivec! Nor does it finalize CMAC value
|
||
# (see engine/eng_aesni.c for details)
|
||
#
|
||
{
|
||
my $cmac="%r9"; # 6th argument
|
||
|
||
my $increment="%xmm6";
|
||
my $bswap_mask="%xmm7";
|
||
|
||
$code.=<<___;
|
||
.globl aesni_ccm64_encrypt_blocks
|
||
.type aesni_ccm64_encrypt_blocks,\@function,6
|
||
.align 16
|
||
aesni_ccm64_encrypt_blocks:
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
lea -0x58(%rsp),%rsp
|
||
movaps %xmm6,(%rsp)
|
||
movaps %xmm7,0x10(%rsp)
|
||
movaps %xmm8,0x20(%rsp)
|
||
movaps %xmm9,0x30(%rsp)
|
||
.Lccm64_enc_body:
|
||
___
|
||
$code.=<<___;
|
||
mov 240($key),$rounds # key->rounds
|
||
movdqu ($ivp),$iv
|
||
movdqa .Lincrement64(%rip),$increment
|
||
movdqa .Lbswap_mask(%rip),$bswap_mask
|
||
|
||
shr \$1,$rounds
|
||
lea 0($key),$key_
|
||
movdqu ($cmac),$inout1
|
||
movdqa $iv,$inout0
|
||
mov $rounds,$rnds_
|
||
pshufb $bswap_mask,$iv
|
||
jmp .Lccm64_enc_outer
|
||
.align 16
|
||
.Lccm64_enc_outer:
|
||
$movkey ($key_),$rndkey0
|
||
mov $rnds_,$rounds
|
||
movups ($inp),$in0 # load inp
|
||
|
||
xorps $rndkey0,$inout0 # counter
|
||
$movkey 16($key_),$rndkey1
|
||
xorps $in0,$rndkey0
|
||
lea 32($key_),$key
|
||
xorps $rndkey0,$inout1 # cmac^=inp
|
||
$movkey ($key),$rndkey0
|
||
|
||
.Lccm64_enc2_loop:
|
||
aesenc $rndkey1,$inout0
|
||
dec $rounds
|
||
aesenc $rndkey1,$inout1
|
||
$movkey 16($key),$rndkey1
|
||
aesenc $rndkey0,$inout0
|
||
lea 32($key),$key
|
||
aesenc $rndkey0,$inout1
|
||
$movkey 0($key),$rndkey0
|
||
jnz .Lccm64_enc2_loop
|
||
aesenc $rndkey1,$inout0
|
||
aesenc $rndkey1,$inout1
|
||
paddq $increment,$iv
|
||
aesenclast $rndkey0,$inout0
|
||
aesenclast $rndkey0,$inout1
|
||
|
||
dec $len
|
||
lea 16($inp),$inp
|
||
xorps $inout0,$in0 # inp ^= E(iv)
|
||
movdqa $iv,$inout0
|
||
movups $in0,($out) # save output
|
||
lea 16($out),$out
|
||
pshufb $bswap_mask,$inout0
|
||
jnz .Lccm64_enc_outer
|
||
|
||
movups $inout1,($cmac)
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps (%rsp),%xmm6
|
||
movaps 0x10(%rsp),%xmm7
|
||
movaps 0x20(%rsp),%xmm8
|
||
movaps 0x30(%rsp),%xmm9
|
||
lea 0x58(%rsp),%rsp
|
||
.Lccm64_enc_ret:
|
||
___
|
||
$code.=<<___;
|
||
ret
|
||
.size aesni_ccm64_encrypt_blocks,.-aesni_ccm64_encrypt_blocks
|
||
___
|
||
######################################################################
|
||
$code.=<<___;
|
||
.globl aesni_ccm64_decrypt_blocks
|
||
.type aesni_ccm64_decrypt_blocks,\@function,6
|
||
.align 16
|
||
aesni_ccm64_decrypt_blocks:
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
lea -0x58(%rsp),%rsp
|
||
movaps %xmm6,(%rsp)
|
||
movaps %xmm7,0x10(%rsp)
|
||
movaps %xmm8,0x20(%rsp)
|
||
movaps %xmm9,0x30(%rsp)
|
||
.Lccm64_dec_body:
|
||
___
|
||
$code.=<<___;
|
||
mov 240($key),$rounds # key->rounds
|
||
movups ($ivp),$iv
|
||
movdqu ($cmac),$inout1
|
||
movdqa .Lincrement64(%rip),$increment
|
||
movdqa .Lbswap_mask(%rip),$bswap_mask
|
||
|
||
movaps $iv,$inout0
|
||
mov $rounds,$rnds_
|
||
mov $key,$key_
|
||
pshufb $bswap_mask,$iv
|
||
___
|
||
&aesni_generate1("enc",$key,$rounds);
|
||
$code.=<<___;
|
||
movups ($inp),$in0 # load inp
|
||
paddq $increment,$iv
|
||
lea 16($inp),$inp
|
||
jmp .Lccm64_dec_outer
|
||
.align 16
|
||
.Lccm64_dec_outer:
|
||
xorps $inout0,$in0 # inp ^= E(iv)
|
||
movdqa $iv,$inout0
|
||
mov $rnds_,$rounds
|
||
movups $in0,($out) # save output
|
||
lea 16($out),$out
|
||
pshufb $bswap_mask,$inout0
|
||
|
||
sub \$1,$len
|
||
jz .Lccm64_dec_break
|
||
|
||
$movkey ($key_),$rndkey0
|
||
shr \$1,$rounds
|
||
$movkey 16($key_),$rndkey1
|
||
xorps $rndkey0,$in0
|
||
lea 32($key_),$key
|
||
xorps $rndkey0,$inout0
|
||
xorps $in0,$inout1 # cmac^=out
|
||
$movkey ($key),$rndkey0
|
||
|
||
.Lccm64_dec2_loop:
|
||
aesenc $rndkey1,$inout0
|
||
dec $rounds
|
||
aesenc $rndkey1,$inout1
|
||
$movkey 16($key),$rndkey1
|
||
aesenc $rndkey0,$inout0
|
||
lea 32($key),$key
|
||
aesenc $rndkey0,$inout1
|
||
$movkey 0($key),$rndkey0
|
||
jnz .Lccm64_dec2_loop
|
||
movups ($inp),$in0 # load inp
|
||
paddq $increment,$iv
|
||
aesenc $rndkey1,$inout0
|
||
aesenc $rndkey1,$inout1
|
||
lea 16($inp),$inp
|
||
aesenclast $rndkey0,$inout0
|
||
aesenclast $rndkey0,$inout1
|
||
jmp .Lccm64_dec_outer
|
||
|
||
.align 16
|
||
.Lccm64_dec_break:
|
||
#xorps $in0,$inout1 # cmac^=out
|
||
___
|
||
&aesni_generate1("enc",$key_,$rounds,$inout1,$in0);
|
||
$code.=<<___;
|
||
movups $inout1,($cmac)
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps (%rsp),%xmm6
|
||
movaps 0x10(%rsp),%xmm7
|
||
movaps 0x20(%rsp),%xmm8
|
||
movaps 0x30(%rsp),%xmm9
|
||
lea 0x58(%rsp),%rsp
|
||
.Lccm64_dec_ret:
|
||
___
|
||
$code.=<<___;
|
||
ret
|
||
.size aesni_ccm64_decrypt_blocks,.-aesni_ccm64_decrypt_blocks
|
||
___
|
||
}
|
||
######################################################################
|
||
# void aesni_ctr32_encrypt_blocks (const void *in, void *out,
|
||
# size_t blocks, const AES_KEY *key,
|
||
# const char *ivec);
|
||
#
|
||
# Handles only complete blocks, operates on 32-bit counter and
|
||
# does not update *ivec! (see engine/eng_aesni.c for details)
|
||
#
|
||
{
|
||
my $frame_size = 0x20+($win64?160:0);
|
||
my ($in0,$in1,$in2,$in3)=map("%xmm$_",(8..11));
|
||
my ($iv0,$iv1,$ivec)=("%xmm12","%xmm13","%xmm14");
|
||
my $bswap_mask="%xmm15";
|
||
|
||
$code.=<<___;
|
||
.globl aesni_ctr32_encrypt_blocks
|
||
.type aesni_ctr32_encrypt_blocks,\@function,5
|
||
.align 16
|
||
aesni_ctr32_encrypt_blocks:
|
||
lea (%rsp),%rax
|
||
push %rbp
|
||
sub \$$frame_size,%rsp
|
||
and \$-16,%rsp # Linux kernel stack can be incorrectly seeded
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps %xmm6,0x20(%rsp)
|
||
movaps %xmm7,0x30(%rsp)
|
||
movaps %xmm8,0x40(%rsp)
|
||
movaps %xmm9,0x50(%rsp)
|
||
movaps %xmm10,0x60(%rsp)
|
||
movaps %xmm11,0x70(%rsp)
|
||
movaps %xmm12,0x80(%rsp)
|
||
movaps %xmm13,0x90(%rsp)
|
||
movaps %xmm14,0xa0(%rsp)
|
||
movaps %xmm15,0xb0(%rsp)
|
||
.Lctr32_body:
|
||
___
|
||
$code.=<<___;
|
||
lea -8(%rax),%rbp
|
||
cmp \$1,$len
|
||
je .Lctr32_one_shortcut
|
||
|
||
movdqu ($ivp),$ivec
|
||
movdqa .Lbswap_mask(%rip),$bswap_mask
|
||
xor $rounds,$rounds
|
||
pextrd \$3,$ivec,$rnds_ # pull 32-bit counter
|
||
pinsrd \$3,$rounds,$ivec # wipe 32-bit counter
|
||
|
||
mov 240($key),$rounds # key->rounds
|
||
bswap $rnds_
|
||
pxor $iv0,$iv0 # vector of 3 32-bit counters
|
||
pxor $iv1,$iv1 # vector of 3 32-bit counters
|
||
pinsrd \$0,$rnds_,$iv0
|
||
lea 3($rnds_),$key_
|
||
pinsrd \$0,$key_,$iv1
|
||
inc $rnds_
|
||
pinsrd \$1,$rnds_,$iv0
|
||
inc $key_
|
||
pinsrd \$1,$key_,$iv1
|
||
inc $rnds_
|
||
pinsrd \$2,$rnds_,$iv0
|
||
inc $key_
|
||
pinsrd \$2,$key_,$iv1
|
||
movdqa $iv0,0x00(%rsp)
|
||
pshufb $bswap_mask,$iv0
|
||
movdqa $iv1,0x10(%rsp)
|
||
pshufb $bswap_mask,$iv1
|
||
|
||
pshufd \$`3<<6`,$iv0,$inout0 # place counter to upper dword
|
||
pshufd \$`2<<6`,$iv0,$inout1
|
||
pshufd \$`1<<6`,$iv0,$inout2
|
||
cmp \$6,$len
|
||
jb .Lctr32_tail
|
||
shr \$1,$rounds
|
||
mov $key,$key_ # backup $key
|
||
mov $rounds,$rnds_ # backup $rounds
|
||
sub \$6,$len
|
||
jmp .Lctr32_loop6
|
||
|
||
.align 16
|
||
.Lctr32_loop6:
|
||
pshufd \$`3<<6`,$iv1,$inout3
|
||
por $ivec,$inout0 # merge counter-less ivec
|
||
$movkey ($key_),$rndkey0
|
||
pshufd \$`2<<6`,$iv1,$inout4
|
||
por $ivec,$inout1
|
||
$movkey 16($key_),$rndkey1
|
||
pshufd \$`1<<6`,$iv1,$inout5
|
||
por $ivec,$inout2
|
||
por $ivec,$inout3
|
||
xorps $rndkey0,$inout0
|
||
por $ivec,$inout4
|
||
por $ivec,$inout5
|
||
|
||
# inline _aesni_encrypt6 and interleave last rounds
|
||
# with own code...
|
||
|
||
pxor $rndkey0,$inout1
|
||
aesenc $rndkey1,$inout0
|
||
lea 32($key_),$key
|
||
pxor $rndkey0,$inout2
|
||
aesenc $rndkey1,$inout1
|
||
movdqa .Lincrement32(%rip),$iv1
|
||
pxor $rndkey0,$inout3
|
||
aesenc $rndkey1,$inout2
|
||
movdqa (%rsp),$iv0
|
||
pxor $rndkey0,$inout4
|
||
aesenc $rndkey1,$inout3
|
||
pxor $rndkey0,$inout5
|
||
$movkey ($key),$rndkey0
|
||
dec $rounds
|
||
aesenc $rndkey1,$inout4
|
||
aesenc $rndkey1,$inout5
|
||
jmp .Lctr32_enc_loop6_enter
|
||
.align 16
|
||
.Lctr32_enc_loop6:
|
||
aesenc $rndkey1,$inout0
|
||
aesenc $rndkey1,$inout1
|
||
dec $rounds
|
||
aesenc $rndkey1,$inout2
|
||
aesenc $rndkey1,$inout3
|
||
aesenc $rndkey1,$inout4
|
||
aesenc $rndkey1,$inout5
|
||
.Lctr32_enc_loop6_enter:
|
||
$movkey 16($key),$rndkey1
|
||
aesenc $rndkey0,$inout0
|
||
aesenc $rndkey0,$inout1
|
||
lea 32($key),$key
|
||
aesenc $rndkey0,$inout2
|
||
aesenc $rndkey0,$inout3
|
||
aesenc $rndkey0,$inout4
|
||
aesenc $rndkey0,$inout5
|
||
$movkey ($key),$rndkey0
|
||
jnz .Lctr32_enc_loop6
|
||
|
||
aesenc $rndkey1,$inout0
|
||
paddd $iv1,$iv0 # increment counter vector
|
||
aesenc $rndkey1,$inout1
|
||
paddd 0x10(%rsp),$iv1
|
||
aesenc $rndkey1,$inout2
|
||
movdqa $iv0,0x00(%rsp) # save counter vector
|
||
aesenc $rndkey1,$inout3
|
||
movdqa $iv1,0x10(%rsp)
|
||
aesenc $rndkey1,$inout4
|
||
pshufb $bswap_mask,$iv0 # byte swap
|
||
aesenc $rndkey1,$inout5
|
||
pshufb $bswap_mask,$iv1
|
||
|
||
aesenclast $rndkey0,$inout0
|
||
movups ($inp),$in0 # load input
|
||
aesenclast $rndkey0,$inout1
|
||
movups 0x10($inp),$in1
|
||
aesenclast $rndkey0,$inout2
|
||
movups 0x20($inp),$in2
|
||
aesenclast $rndkey0,$inout3
|
||
movups 0x30($inp),$in3
|
||
aesenclast $rndkey0,$inout4
|
||
movups 0x40($inp),$rndkey1
|
||
aesenclast $rndkey0,$inout5
|
||
movups 0x50($inp),$rndkey0
|
||
lea 0x60($inp),$inp
|
||
|
||
xorps $inout0,$in0 # xor
|
||
pshufd \$`3<<6`,$iv0,$inout0
|
||
xorps $inout1,$in1
|
||
pshufd \$`2<<6`,$iv0,$inout1
|
||
movups $in0,($out) # store output
|
||
xorps $inout2,$in2
|
||
pshufd \$`1<<6`,$iv0,$inout2
|
||
movups $in1,0x10($out)
|
||
xorps $inout3,$in3
|
||
movups $in2,0x20($out)
|
||
xorps $inout4,$rndkey1
|
||
movups $in3,0x30($out)
|
||
xorps $inout5,$rndkey0
|
||
movups $rndkey1,0x40($out)
|
||
movups $rndkey0,0x50($out)
|
||
lea 0x60($out),$out
|
||
mov $rnds_,$rounds
|
||
sub \$6,$len
|
||
jnc .Lctr32_loop6
|
||
|
||
add \$6,$len
|
||
jz .Lctr32_done
|
||
mov $key_,$key # restore $key
|
||
lea 1($rounds,$rounds),$rounds # restore original value
|
||
|
||
.Lctr32_tail:
|
||
por $ivec,$inout0
|
||
movups ($inp),$in0
|
||
cmp \$2,$len
|
||
jb .Lctr32_one
|
||
|
||
por $ivec,$inout1
|
||
movups 0x10($inp),$in1
|
||
je .Lctr32_two
|
||
|
||
pshufd \$`3<<6`,$iv1,$inout3
|
||
por $ivec,$inout2
|
||
movups 0x20($inp),$in2
|
||
cmp \$4,$len
|
||
jb .Lctr32_three
|
||
|
||
pshufd \$`2<<6`,$iv1,$inout4
|
||
por $ivec,$inout3
|
||
movups 0x30($inp),$in3
|
||
je .Lctr32_four
|
||
|
||
por $ivec,$inout4
|
||
xorps $inout5,$inout5
|
||
|
||
call _aesni_encrypt6
|
||
|
||
movups 0x40($inp),$rndkey1
|
||
xorps $inout0,$in0
|
||
xorps $inout1,$in1
|
||
movups $in0,($out)
|
||
xorps $inout2,$in2
|
||
movups $in1,0x10($out)
|
||
xorps $inout3,$in3
|
||
movups $in2,0x20($out)
|
||
xorps $inout4,$rndkey1
|
||
movups $in3,0x30($out)
|
||
movups $rndkey1,0x40($out)
|
||
jmp .Lctr32_done
|
||
|
||
.align 16
|
||
.Lctr32_one_shortcut:
|
||
movups ($ivp),$inout0
|
||
movups ($inp),$in0
|
||
mov 240($key),$rounds # key->rounds
|
||
.Lctr32_one:
|
||
___
|
||
&aesni_generate1("enc",$key,$rounds);
|
||
$code.=<<___;
|
||
xorps $inout0,$in0
|
||
movups $in0,($out)
|
||
jmp .Lctr32_done
|
||
|
||
.align 16
|
||
.Lctr32_two:
|
||
xorps $inout2,$inout2
|
||
call _aesni_encrypt3
|
||
xorps $inout0,$in0
|
||
xorps $inout1,$in1
|
||
movups $in0,($out)
|
||
movups $in1,0x10($out)
|
||
jmp .Lctr32_done
|
||
|
||
.align 16
|
||
.Lctr32_three:
|
||
call _aesni_encrypt3
|
||
xorps $inout0,$in0
|
||
xorps $inout1,$in1
|
||
movups $in0,($out)
|
||
xorps $inout2,$in2
|
||
movups $in1,0x10($out)
|
||
movups $in2,0x20($out)
|
||
jmp .Lctr32_done
|
||
|
||
.align 16
|
||
.Lctr32_four:
|
||
call _aesni_encrypt4
|
||
xorps $inout0,$in0
|
||
xorps $inout1,$in1
|
||
movups $in0,($out)
|
||
xorps $inout2,$in2
|
||
movups $in1,0x10($out)
|
||
xorps $inout3,$in3
|
||
movups $in2,0x20($out)
|
||
movups $in3,0x30($out)
|
||
|
||
.Lctr32_done:
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps 0x20(%rsp),%xmm6
|
||
movaps 0x30(%rsp),%xmm7
|
||
movaps 0x40(%rsp),%xmm8
|
||
movaps 0x50(%rsp),%xmm9
|
||
movaps 0x60(%rsp),%xmm10
|
||
movaps 0x70(%rsp),%xmm11
|
||
movaps 0x80(%rsp),%xmm12
|
||
movaps 0x90(%rsp),%xmm13
|
||
movaps 0xa0(%rsp),%xmm14
|
||
movaps 0xb0(%rsp),%xmm15
|
||
___
|
||
$code.=<<___;
|
||
lea (%rbp),%rsp
|
||
pop %rbp
|
||
.Lctr32_ret:
|
||
ret
|
||
.size aesni_ctr32_encrypt_blocks,.-aesni_ctr32_encrypt_blocks
|
||
___
|
||
}
|
||
|
||
######################################################################
|
||
# void aesni_xts_[en|de]crypt(const char *inp,char *out,size_t len,
|
||
# const AES_KEY *key1, const AES_KEY *key2
|
||
# const unsigned char iv[16]);
|
||
#
|
||
{
|
||
my @tweak=map("%xmm$_",(10..15));
|
||
my ($twmask,$twres,$twtmp)=("%xmm8","%xmm9",@tweak[4]);
|
||
my ($key2,$ivp,$len_)=("%r8","%r9","%r9");
|
||
my $frame_size = 0x60 + ($win64?160:0);
|
||
|
||
$code.=<<___;
|
||
.globl aesni_xts_encrypt
|
||
.type aesni_xts_encrypt,\@function,6
|
||
.align 16
|
||
aesni_xts_encrypt:
|
||
lea (%rsp),%rax
|
||
push %rbp
|
||
sub \$$frame_size,%rsp
|
||
and \$-16,%rsp # Linux kernel stack can be incorrectly seeded
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps %xmm6,0x60(%rsp)
|
||
movaps %xmm7,0x70(%rsp)
|
||
movaps %xmm8,0x80(%rsp)
|
||
movaps %xmm9,0x90(%rsp)
|
||
movaps %xmm10,0xa0(%rsp)
|
||
movaps %xmm11,0xb0(%rsp)
|
||
movaps %xmm12,0xc0(%rsp)
|
||
movaps %xmm13,0xd0(%rsp)
|
||
movaps %xmm14,0xe0(%rsp)
|
||
movaps %xmm15,0xf0(%rsp)
|
||
.Lxts_enc_body:
|
||
___
|
||
$code.=<<___;
|
||
lea -8(%rax),%rbp
|
||
movups ($ivp),@tweak[5] # load clear-text tweak
|
||
mov 240(%r8),$rounds # key2->rounds
|
||
mov 240($key),$rnds_ # key1->rounds
|
||
___
|
||
# generate the tweak
|
||
&aesni_generate1("enc",$key2,$rounds,@tweak[5]);
|
||
$code.=<<___;
|
||
mov $key,$key_ # backup $key
|
||
mov $rnds_,$rounds # backup $rounds
|
||
mov $len,$len_ # backup $len
|
||
and \$-16,$len
|
||
|
||
movdqa .Lxts_magic(%rip),$twmask
|
||
pxor $twtmp,$twtmp
|
||
pcmpgtd @tweak[5],$twtmp # broadcast upper bits
|
||
___
|
||
for ($i=0;$i<4;$i++) {
|
||
$code.=<<___;
|
||
pshufd \$0x13,$twtmp,$twres
|
||
pxor $twtmp,$twtmp
|
||
movdqa @tweak[5],@tweak[$i]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
pand $twmask,$twres # isolate carry and residue
|
||
pcmpgtd @tweak[5],$twtmp # broadcat upper bits
|
||
pxor $twres,@tweak[5]
|
||
___
|
||
}
|
||
$code.=<<___;
|
||
sub \$16*6,$len
|
||
jc .Lxts_enc_short
|
||
|
||
shr \$1,$rounds
|
||
sub \$1,$rounds
|
||
mov $rounds,$rnds_
|
||
jmp .Lxts_enc_grandloop
|
||
|
||
.align 16
|
||
.Lxts_enc_grandloop:
|
||
pshufd \$0x13,$twtmp,$twres
|
||
movdqa @tweak[5],@tweak[4]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
movdqu `16*0`($inp),$inout0 # load input
|
||
pand $twmask,$twres # isolate carry and residue
|
||
movdqu `16*1`($inp),$inout1
|
||
pxor $twres,@tweak[5]
|
||
|
||
movdqu `16*2`($inp),$inout2
|
||
pxor @tweak[0],$inout0 # input^=tweak
|
||
movdqu `16*3`($inp),$inout3
|
||
pxor @tweak[1],$inout1
|
||
movdqu `16*4`($inp),$inout4
|
||
pxor @tweak[2],$inout2
|
||
movdqu `16*5`($inp),$inout5
|
||
lea `16*6`($inp),$inp
|
||
pxor @tweak[3],$inout3
|
||
$movkey ($key_),$rndkey0
|
||
pxor @tweak[4],$inout4
|
||
pxor @tweak[5],$inout5
|
||
|
||
# inline _aesni_encrypt6 and interleave first and last rounds
|
||
# with own code...
|
||
$movkey 16($key_),$rndkey1
|
||
pxor $rndkey0,$inout0
|
||
pxor $rndkey0,$inout1
|
||
movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks
|
||
aesenc $rndkey1,$inout0
|
||
lea 32($key_),$key
|
||
pxor $rndkey0,$inout2
|
||
movdqa @tweak[1],`16*1`(%rsp)
|
||
aesenc $rndkey1,$inout1
|
||
pxor $rndkey0,$inout3
|
||
movdqa @tweak[2],`16*2`(%rsp)
|
||
aesenc $rndkey1,$inout2
|
||
pxor $rndkey0,$inout4
|
||
movdqa @tweak[3],`16*3`(%rsp)
|
||
aesenc $rndkey1,$inout3
|
||
pxor $rndkey0,$inout5
|
||
$movkey ($key),$rndkey0
|
||
dec $rounds
|
||
movdqa @tweak[4],`16*4`(%rsp)
|
||
aesenc $rndkey1,$inout4
|
||
movdqa @tweak[5],`16*5`(%rsp)
|
||
aesenc $rndkey1,$inout5
|
||
pxor $twtmp,$twtmp
|
||
pcmpgtd @tweak[5],$twtmp
|
||
jmp .Lxts_enc_loop6_enter
|
||
|
||
.align 16
|
||
.Lxts_enc_loop6:
|
||
aesenc $rndkey1,$inout0
|
||
aesenc $rndkey1,$inout1
|
||
dec $rounds
|
||
aesenc $rndkey1,$inout2
|
||
aesenc $rndkey1,$inout3
|
||
aesenc $rndkey1,$inout4
|
||
aesenc $rndkey1,$inout5
|
||
.Lxts_enc_loop6_enter:
|
||
$movkey 16($key),$rndkey1
|
||
aesenc $rndkey0,$inout0
|
||
aesenc $rndkey0,$inout1
|
||
lea 32($key),$key
|
||
aesenc $rndkey0,$inout2
|
||
aesenc $rndkey0,$inout3
|
||
aesenc $rndkey0,$inout4
|
||
aesenc $rndkey0,$inout5
|
||
$movkey ($key),$rndkey0
|
||
jnz .Lxts_enc_loop6
|
||
|
||
pshufd \$0x13,$twtmp,$twres
|
||
pxor $twtmp,$twtmp
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
aesenc $rndkey1,$inout0
|
||
pand $twmask,$twres # isolate carry and residue
|
||
aesenc $rndkey1,$inout1
|
||
pcmpgtd @tweak[5],$twtmp # broadcast upper bits
|
||
aesenc $rndkey1,$inout2
|
||
pxor $twres,@tweak[5]
|
||
aesenc $rndkey1,$inout3
|
||
aesenc $rndkey1,$inout4
|
||
aesenc $rndkey1,$inout5
|
||
$movkey 16($key),$rndkey1
|
||
|
||
pshufd \$0x13,$twtmp,$twres
|
||
pxor $twtmp,$twtmp
|
||
movdqa @tweak[5],@tweak[0]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
aesenc $rndkey0,$inout0
|
||
pand $twmask,$twres # isolate carry and residue
|
||
aesenc $rndkey0,$inout1
|
||
pcmpgtd @tweak[5],$twtmp # broadcat upper bits
|
||
aesenc $rndkey0,$inout2
|
||
pxor $twres,@tweak[5]
|
||
aesenc $rndkey0,$inout3
|
||
aesenc $rndkey0,$inout4
|
||
aesenc $rndkey0,$inout5
|
||
$movkey 32($key),$rndkey0
|
||
|
||
pshufd \$0x13,$twtmp,$twres
|
||
pxor $twtmp,$twtmp
|
||
movdqa @tweak[5],@tweak[1]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
aesenc $rndkey1,$inout0
|
||
pand $twmask,$twres # isolate carry and residue
|
||
aesenc $rndkey1,$inout1
|
||
pcmpgtd @tweak[5],$twtmp # broadcat upper bits
|
||
aesenc $rndkey1,$inout2
|
||
pxor $twres,@tweak[5]
|
||
aesenc $rndkey1,$inout3
|
||
aesenc $rndkey1,$inout4
|
||
aesenc $rndkey1,$inout5
|
||
|
||
pshufd \$0x13,$twtmp,$twres
|
||
pxor $twtmp,$twtmp
|
||
movdqa @tweak[5],@tweak[2]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
aesenclast $rndkey0,$inout0
|
||
pand $twmask,$twres # isolate carry and residue
|
||
aesenclast $rndkey0,$inout1
|
||
pcmpgtd @tweak[5],$twtmp # broadcat upper bits
|
||
aesenclast $rndkey0,$inout2
|
||
pxor $twres,@tweak[5]
|
||
aesenclast $rndkey0,$inout3
|
||
aesenclast $rndkey0,$inout4
|
||
aesenclast $rndkey0,$inout5
|
||
|
||
pshufd \$0x13,$twtmp,$twres
|
||
pxor $twtmp,$twtmp
|
||
movdqa @tweak[5],@tweak[3]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
xorps `16*0`(%rsp),$inout0 # output^=tweak
|
||
pand $twmask,$twres # isolate carry and residue
|
||
xorps `16*1`(%rsp),$inout1
|
||
pcmpgtd @tweak[5],$twtmp # broadcat upper bits
|
||
pxor $twres,@tweak[5]
|
||
|
||
xorps `16*2`(%rsp),$inout2
|
||
movups $inout0,`16*0`($out) # write output
|
||
xorps `16*3`(%rsp),$inout3
|
||
movups $inout1,`16*1`($out)
|
||
xorps `16*4`(%rsp),$inout4
|
||
movups $inout2,`16*2`($out)
|
||
xorps `16*5`(%rsp),$inout5
|
||
movups $inout3,`16*3`($out)
|
||
mov $rnds_,$rounds # restore $rounds
|
||
movups $inout4,`16*4`($out)
|
||
movups $inout5,`16*5`($out)
|
||
lea `16*6`($out),$out
|
||
sub \$16*6,$len
|
||
jnc .Lxts_enc_grandloop
|
||
|
||
lea 3($rounds,$rounds),$rounds # restore original value
|
||
mov $key_,$key # restore $key
|
||
mov $rounds,$rnds_ # backup $rounds
|
||
|
||
.Lxts_enc_short:
|
||
add \$16*6,$len
|
||
jz .Lxts_enc_done
|
||
|
||
cmp \$0x20,$len
|
||
jb .Lxts_enc_one
|
||
je .Lxts_enc_two
|
||
|
||
cmp \$0x40,$len
|
||
jb .Lxts_enc_three
|
||
je .Lxts_enc_four
|
||
|
||
pshufd \$0x13,$twtmp,$twres
|
||
movdqa @tweak[5],@tweak[4]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
movdqu ($inp),$inout0
|
||
pand $twmask,$twres # isolate carry and residue
|
||
movdqu 16*1($inp),$inout1
|
||
pxor $twres,@tweak[5]
|
||
|
||
movdqu 16*2($inp),$inout2
|
||
pxor @tweak[0],$inout0
|
||
movdqu 16*3($inp),$inout3
|
||
pxor @tweak[1],$inout1
|
||
movdqu 16*4($inp),$inout4
|
||
lea 16*5($inp),$inp
|
||
pxor @tweak[2],$inout2
|
||
pxor @tweak[3],$inout3
|
||
pxor @tweak[4],$inout4
|
||
|
||
call _aesni_encrypt6
|
||
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[5],@tweak[0]
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
movdqu $inout0,($out)
|
||
xorps @tweak[3],$inout3
|
||
movdqu $inout1,16*1($out)
|
||
xorps @tweak[4],$inout4
|
||
movdqu $inout2,16*2($out)
|
||
movdqu $inout3,16*3($out)
|
||
movdqu $inout4,16*4($out)
|
||
lea 16*5($out),$out
|
||
jmp .Lxts_enc_done
|
||
|
||
.align 16
|
||
.Lxts_enc_one:
|
||
movups ($inp),$inout0
|
||
lea 16*1($inp),$inp
|
||
xorps @tweak[0],$inout0
|
||
___
|
||
&aesni_generate1("enc",$key,$rounds);
|
||
$code.=<<___;
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[1],@tweak[0]
|
||
movups $inout0,($out)
|
||
lea 16*1($out),$out
|
||
jmp .Lxts_enc_done
|
||
|
||
.align 16
|
||
.Lxts_enc_two:
|
||
movups ($inp),$inout0
|
||
movups 16($inp),$inout1
|
||
lea 32($inp),$inp
|
||
xorps @tweak[0],$inout0
|
||
xorps @tweak[1],$inout1
|
||
|
||
call _aesni_encrypt3
|
||
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[2],@tweak[0]
|
||
xorps @tweak[1],$inout1
|
||
movups $inout0,($out)
|
||
movups $inout1,16*1($out)
|
||
lea 16*2($out),$out
|
||
jmp .Lxts_enc_done
|
||
|
||
.align 16
|
||
.Lxts_enc_three:
|
||
movups ($inp),$inout0
|
||
movups 16*1($inp),$inout1
|
||
movups 16*2($inp),$inout2
|
||
lea 16*3($inp),$inp
|
||
xorps @tweak[0],$inout0
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
|
||
call _aesni_encrypt3
|
||
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[3],@tweak[0]
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
movups $inout0,($out)
|
||
movups $inout1,16*1($out)
|
||
movups $inout2,16*2($out)
|
||
lea 16*3($out),$out
|
||
jmp .Lxts_enc_done
|
||
|
||
.align 16
|
||
.Lxts_enc_four:
|
||
movups ($inp),$inout0
|
||
movups 16*1($inp),$inout1
|
||
movups 16*2($inp),$inout2
|
||
xorps @tweak[0],$inout0
|
||
movups 16*3($inp),$inout3
|
||
lea 16*4($inp),$inp
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
xorps @tweak[3],$inout3
|
||
|
||
call _aesni_encrypt4
|
||
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[5],@tweak[0]
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
movups $inout0,($out)
|
||
xorps @tweak[3],$inout3
|
||
movups $inout1,16*1($out)
|
||
movups $inout2,16*2($out)
|
||
movups $inout3,16*3($out)
|
||
lea 16*4($out),$out
|
||
jmp .Lxts_enc_done
|
||
|
||
.align 16
|
||
.Lxts_enc_done:
|
||
and \$15,$len_
|
||
jz .Lxts_enc_ret
|
||
mov $len_,$len
|
||
|
||
.Lxts_enc_steal:
|
||
movzb ($inp),%eax # borrow $rounds ...
|
||
movzb -16($out),%ecx # ... and $key
|
||
lea 1($inp),$inp
|
||
mov %al,-16($out)
|
||
mov %cl,0($out)
|
||
lea 1($out),$out
|
||
sub \$1,$len
|
||
jnz .Lxts_enc_steal
|
||
|
||
sub $len_,$out # rewind $out
|
||
mov $key_,$key # restore $key
|
||
mov $rnds_,$rounds # restore $rounds
|
||
|
||
movups -16($out),$inout0
|
||
xorps @tweak[0],$inout0
|
||
___
|
||
&aesni_generate1("enc",$key,$rounds);
|
||
$code.=<<___;
|
||
xorps @tweak[0],$inout0
|
||
movups $inout0,-16($out)
|
||
|
||
.Lxts_enc_ret:
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps 0x60(%rsp),%xmm6
|
||
movaps 0x70(%rsp),%xmm7
|
||
movaps 0x80(%rsp),%xmm8
|
||
movaps 0x90(%rsp),%xmm9
|
||
movaps 0xa0(%rsp),%xmm10
|
||
movaps 0xb0(%rsp),%xmm11
|
||
movaps 0xc0(%rsp),%xmm12
|
||
movaps 0xd0(%rsp),%xmm13
|
||
movaps 0xe0(%rsp),%xmm14
|
||
movaps 0xf0(%rsp),%xmm15
|
||
___
|
||
$code.=<<___;
|
||
lea (%rbp),%rsp
|
||
pop %rbp
|
||
.Lxts_enc_epilogue:
|
||
ret
|
||
.size aesni_xts_encrypt,.-aesni_xts_encrypt
|
||
___
|
||
|
||
$code.=<<___;
|
||
.globl aesni_xts_decrypt
|
||
.type aesni_xts_decrypt,\@function,6
|
||
.align 16
|
||
aesni_xts_decrypt:
|
||
lea (%rsp),%rax
|
||
push %rbp
|
||
sub \$$frame_size,%rsp
|
||
and \$-16,%rsp # Linux kernel stack can be incorrectly seeded
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps %xmm6,0x60(%rsp)
|
||
movaps %xmm7,0x70(%rsp)
|
||
movaps %xmm8,0x80(%rsp)
|
||
movaps %xmm9,0x90(%rsp)
|
||
movaps %xmm10,0xa0(%rsp)
|
||
movaps %xmm11,0xb0(%rsp)
|
||
movaps %xmm12,0xc0(%rsp)
|
||
movaps %xmm13,0xd0(%rsp)
|
||
movaps %xmm14,0xe0(%rsp)
|
||
movaps %xmm15,0xf0(%rsp)
|
||
.Lxts_dec_body:
|
||
___
|
||
$code.=<<___;
|
||
lea -8(%rax),%rbp
|
||
movups ($ivp),@tweak[5] # load clear-text tweak
|
||
mov 240($key2),$rounds # key2->rounds
|
||
mov 240($key),$rnds_ # key1->rounds
|
||
___
|
||
# generate the tweak
|
||
&aesni_generate1("enc",$key2,$rounds,@tweak[5]);
|
||
$code.=<<___;
|
||
xor %eax,%eax # if ($len%16) len-=16;
|
||
test \$15,$len
|
||
setnz %al
|
||
shl \$4,%rax
|
||
sub %rax,$len
|
||
|
||
mov $key,$key_ # backup $key
|
||
mov $rnds_,$rounds # backup $rounds
|
||
mov $len,$len_ # backup $len
|
||
and \$-16,$len
|
||
|
||
movdqa .Lxts_magic(%rip),$twmask
|
||
pxor $twtmp,$twtmp
|
||
pcmpgtd @tweak[5],$twtmp # broadcast upper bits
|
||
___
|
||
for ($i=0;$i<4;$i++) {
|
||
$code.=<<___;
|
||
pshufd \$0x13,$twtmp,$twres
|
||
pxor $twtmp,$twtmp
|
||
movdqa @tweak[5],@tweak[$i]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
pand $twmask,$twres # isolate carry and residue
|
||
pcmpgtd @tweak[5],$twtmp # broadcat upper bits
|
||
pxor $twres,@tweak[5]
|
||
___
|
||
}
|
||
$code.=<<___;
|
||
sub \$16*6,$len
|
||
jc .Lxts_dec_short
|
||
|
||
shr \$1,$rounds
|
||
sub \$1,$rounds
|
||
mov $rounds,$rnds_
|
||
jmp .Lxts_dec_grandloop
|
||
|
||
.align 16
|
||
.Lxts_dec_grandloop:
|
||
pshufd \$0x13,$twtmp,$twres
|
||
movdqa @tweak[5],@tweak[4]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
movdqu `16*0`($inp),$inout0 # load input
|
||
pand $twmask,$twres # isolate carry and residue
|
||
movdqu `16*1`($inp),$inout1
|
||
pxor $twres,@tweak[5]
|
||
|
||
movdqu `16*2`($inp),$inout2
|
||
pxor @tweak[0],$inout0 # input^=tweak
|
||
movdqu `16*3`($inp),$inout3
|
||
pxor @tweak[1],$inout1
|
||
movdqu `16*4`($inp),$inout4
|
||
pxor @tweak[2],$inout2
|
||
movdqu `16*5`($inp),$inout5
|
||
lea `16*6`($inp),$inp
|
||
pxor @tweak[3],$inout3
|
||
$movkey ($key_),$rndkey0
|
||
pxor @tweak[4],$inout4
|
||
pxor @tweak[5],$inout5
|
||
|
||
# inline _aesni_decrypt6 and interleave first and last rounds
|
||
# with own code...
|
||
$movkey 16($key_),$rndkey1
|
||
pxor $rndkey0,$inout0
|
||
pxor $rndkey0,$inout1
|
||
movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks
|
||
aesdec $rndkey1,$inout0
|
||
lea 32($key_),$key
|
||
pxor $rndkey0,$inout2
|
||
movdqa @tweak[1],`16*1`(%rsp)
|
||
aesdec $rndkey1,$inout1
|
||
pxor $rndkey0,$inout3
|
||
movdqa @tweak[2],`16*2`(%rsp)
|
||
aesdec $rndkey1,$inout2
|
||
pxor $rndkey0,$inout4
|
||
movdqa @tweak[3],`16*3`(%rsp)
|
||
aesdec $rndkey1,$inout3
|
||
pxor $rndkey0,$inout5
|
||
$movkey ($key),$rndkey0
|
||
dec $rounds
|
||
movdqa @tweak[4],`16*4`(%rsp)
|
||
aesdec $rndkey1,$inout4
|
||
movdqa @tweak[5],`16*5`(%rsp)
|
||
aesdec $rndkey1,$inout5
|
||
pxor $twtmp,$twtmp
|
||
pcmpgtd @tweak[5],$twtmp
|
||
jmp .Lxts_dec_loop6_enter
|
||
|
||
.align 16
|
||
.Lxts_dec_loop6:
|
||
aesdec $rndkey1,$inout0
|
||
aesdec $rndkey1,$inout1
|
||
dec $rounds
|
||
aesdec $rndkey1,$inout2
|
||
aesdec $rndkey1,$inout3
|
||
aesdec $rndkey1,$inout4
|
||
aesdec $rndkey1,$inout5
|
||
.Lxts_dec_loop6_enter:
|
||
$movkey 16($key),$rndkey1
|
||
aesdec $rndkey0,$inout0
|
||
aesdec $rndkey0,$inout1
|
||
lea 32($key),$key
|
||
aesdec $rndkey0,$inout2
|
||
aesdec $rndkey0,$inout3
|
||
aesdec $rndkey0,$inout4
|
||
aesdec $rndkey0,$inout5
|
||
$movkey ($key),$rndkey0
|
||
jnz .Lxts_dec_loop6
|
||
|
||
pshufd \$0x13,$twtmp,$twres
|
||
pxor $twtmp,$twtmp
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
aesdec $rndkey1,$inout0
|
||
pand $twmask,$twres # isolate carry and residue
|
||
aesdec $rndkey1,$inout1
|
||
pcmpgtd @tweak[5],$twtmp # broadcast upper bits
|
||
aesdec $rndkey1,$inout2
|
||
pxor $twres,@tweak[5]
|
||
aesdec $rndkey1,$inout3
|
||
aesdec $rndkey1,$inout4
|
||
aesdec $rndkey1,$inout5
|
||
$movkey 16($key),$rndkey1
|
||
|
||
pshufd \$0x13,$twtmp,$twres
|
||
pxor $twtmp,$twtmp
|
||
movdqa @tweak[5],@tweak[0]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
aesdec $rndkey0,$inout0
|
||
pand $twmask,$twres # isolate carry and residue
|
||
aesdec $rndkey0,$inout1
|
||
pcmpgtd @tweak[5],$twtmp # broadcat upper bits
|
||
aesdec $rndkey0,$inout2
|
||
pxor $twres,@tweak[5]
|
||
aesdec $rndkey0,$inout3
|
||
aesdec $rndkey0,$inout4
|
||
aesdec $rndkey0,$inout5
|
||
$movkey 32($key),$rndkey0
|
||
|
||
pshufd \$0x13,$twtmp,$twres
|
||
pxor $twtmp,$twtmp
|
||
movdqa @tweak[5],@tweak[1]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
aesdec $rndkey1,$inout0
|
||
pand $twmask,$twres # isolate carry and residue
|
||
aesdec $rndkey1,$inout1
|
||
pcmpgtd @tweak[5],$twtmp # broadcat upper bits
|
||
aesdec $rndkey1,$inout2
|
||
pxor $twres,@tweak[5]
|
||
aesdec $rndkey1,$inout3
|
||
aesdec $rndkey1,$inout4
|
||
aesdec $rndkey1,$inout5
|
||
|
||
pshufd \$0x13,$twtmp,$twres
|
||
pxor $twtmp,$twtmp
|
||
movdqa @tweak[5],@tweak[2]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
aesdeclast $rndkey0,$inout0
|
||
pand $twmask,$twres # isolate carry and residue
|
||
aesdeclast $rndkey0,$inout1
|
||
pcmpgtd @tweak[5],$twtmp # broadcat upper bits
|
||
aesdeclast $rndkey0,$inout2
|
||
pxor $twres,@tweak[5]
|
||
aesdeclast $rndkey0,$inout3
|
||
aesdeclast $rndkey0,$inout4
|
||
aesdeclast $rndkey0,$inout5
|
||
|
||
pshufd \$0x13,$twtmp,$twres
|
||
pxor $twtmp,$twtmp
|
||
movdqa @tweak[5],@tweak[3]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
xorps `16*0`(%rsp),$inout0 # output^=tweak
|
||
pand $twmask,$twres # isolate carry and residue
|
||
xorps `16*1`(%rsp),$inout1
|
||
pcmpgtd @tweak[5],$twtmp # broadcat upper bits
|
||
pxor $twres,@tweak[5]
|
||
|
||
xorps `16*2`(%rsp),$inout2
|
||
movups $inout0,`16*0`($out) # write output
|
||
xorps `16*3`(%rsp),$inout3
|
||
movups $inout1,`16*1`($out)
|
||
xorps `16*4`(%rsp),$inout4
|
||
movups $inout2,`16*2`($out)
|
||
xorps `16*5`(%rsp),$inout5
|
||
movups $inout3,`16*3`($out)
|
||
mov $rnds_,$rounds # restore $rounds
|
||
movups $inout4,`16*4`($out)
|
||
movups $inout5,`16*5`($out)
|
||
lea `16*6`($out),$out
|
||
sub \$16*6,$len
|
||
jnc .Lxts_dec_grandloop
|
||
|
||
lea 3($rounds,$rounds),$rounds # restore original value
|
||
mov $key_,$key # restore $key
|
||
mov $rounds,$rnds_ # backup $rounds
|
||
|
||
.Lxts_dec_short:
|
||
add \$16*6,$len
|
||
jz .Lxts_dec_done
|
||
|
||
cmp \$0x20,$len
|
||
jb .Lxts_dec_one
|
||
je .Lxts_dec_two
|
||
|
||
cmp \$0x40,$len
|
||
jb .Lxts_dec_three
|
||
je .Lxts_dec_four
|
||
|
||
pshufd \$0x13,$twtmp,$twres
|
||
movdqa @tweak[5],@tweak[4]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
movdqu ($inp),$inout0
|
||
pand $twmask,$twres # isolate carry and residue
|
||
movdqu 16*1($inp),$inout1
|
||
pxor $twres,@tweak[5]
|
||
|
||
movdqu 16*2($inp),$inout2
|
||
pxor @tweak[0],$inout0
|
||
movdqu 16*3($inp),$inout3
|
||
pxor @tweak[1],$inout1
|
||
movdqu 16*4($inp),$inout4
|
||
lea 16*5($inp),$inp
|
||
pxor @tweak[2],$inout2
|
||
pxor @tweak[3],$inout3
|
||
pxor @tweak[4],$inout4
|
||
|
||
call _aesni_decrypt6
|
||
|
||
xorps @tweak[0],$inout0
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
movdqu $inout0,($out)
|
||
xorps @tweak[3],$inout3
|
||
movdqu $inout1,16*1($out)
|
||
xorps @tweak[4],$inout4
|
||
movdqu $inout2,16*2($out)
|
||
pxor $twtmp,$twtmp
|
||
movdqu $inout3,16*3($out)
|
||
pcmpgtd @tweak[5],$twtmp
|
||
movdqu $inout4,16*4($out)
|
||
lea 16*5($out),$out
|
||
pshufd \$0x13,$twtmp,@tweak[1] # $twres
|
||
and \$15,$len_
|
||
jz .Lxts_dec_ret
|
||
|
||
movdqa @tweak[5],@tweak[0]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
pand $twmask,@tweak[1] # isolate carry and residue
|
||
pxor @tweak[5],@tweak[1]
|
||
jmp .Lxts_dec_done2
|
||
|
||
.align 16
|
||
.Lxts_dec_one:
|
||
movups ($inp),$inout0
|
||
lea 16*1($inp),$inp
|
||
xorps @tweak[0],$inout0
|
||
___
|
||
&aesni_generate1("dec",$key,$rounds);
|
||
$code.=<<___;
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[1],@tweak[0]
|
||
movups $inout0,($out)
|
||
movdqa @tweak[2],@tweak[1]
|
||
lea 16*1($out),$out
|
||
jmp .Lxts_dec_done
|
||
|
||
.align 16
|
||
.Lxts_dec_two:
|
||
movups ($inp),$inout0
|
||
movups 16($inp),$inout1
|
||
lea 32($inp),$inp
|
||
xorps @tweak[0],$inout0
|
||
xorps @tweak[1],$inout1
|
||
|
||
call _aesni_decrypt3
|
||
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[2],@tweak[0]
|
||
xorps @tweak[1],$inout1
|
||
movdqa @tweak[3],@tweak[1]
|
||
movups $inout0,($out)
|
||
movups $inout1,16*1($out)
|
||
lea 16*2($out),$out
|
||
jmp .Lxts_dec_done
|
||
|
||
.align 16
|
||
.Lxts_dec_three:
|
||
movups ($inp),$inout0
|
||
movups 16*1($inp),$inout1
|
||
movups 16*2($inp),$inout2
|
||
lea 16*3($inp),$inp
|
||
xorps @tweak[0],$inout0
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
|
||
call _aesni_decrypt3
|
||
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[3],@tweak[0]
|
||
xorps @tweak[1],$inout1
|
||
movdqa @tweak[5],@tweak[1]
|
||
xorps @tweak[2],$inout2
|
||
movups $inout0,($out)
|
||
movups $inout1,16*1($out)
|
||
movups $inout2,16*2($out)
|
||
lea 16*3($out),$out
|
||
jmp .Lxts_dec_done
|
||
|
||
.align 16
|
||
.Lxts_dec_four:
|
||
pshufd \$0x13,$twtmp,$twres
|
||
movdqa @tweak[5],@tweak[4]
|
||
paddq @tweak[5],@tweak[5] # psllq 1,$tweak
|
||
movups ($inp),$inout0
|
||
pand $twmask,$twres # isolate carry and residue
|
||
movups 16*1($inp),$inout1
|
||
pxor $twres,@tweak[5]
|
||
|
||
movups 16*2($inp),$inout2
|
||
xorps @tweak[0],$inout0
|
||
movups 16*3($inp),$inout3
|
||
lea 16*4($inp),$inp
|
||
xorps @tweak[1],$inout1
|
||
xorps @tweak[2],$inout2
|
||
xorps @tweak[3],$inout3
|
||
|
||
call _aesni_decrypt4
|
||
|
||
xorps @tweak[0],$inout0
|
||
movdqa @tweak[4],@tweak[0]
|
||
xorps @tweak[1],$inout1
|
||
movdqa @tweak[5],@tweak[1]
|
||
xorps @tweak[2],$inout2
|
||
movups $inout0,($out)
|
||
xorps @tweak[3],$inout3
|
||
movups $inout1,16*1($out)
|
||
movups $inout2,16*2($out)
|
||
movups $inout3,16*3($out)
|
||
lea 16*4($out),$out
|
||
jmp .Lxts_dec_done
|
||
|
||
.align 16
|
||
.Lxts_dec_done:
|
||
and \$15,$len_
|
||
jz .Lxts_dec_ret
|
||
.Lxts_dec_done2:
|
||
mov $len_,$len
|
||
mov $key_,$key # restore $key
|
||
mov $rnds_,$rounds # restore $rounds
|
||
|
||
movups ($inp),$inout0
|
||
xorps @tweak[1],$inout0
|
||
___
|
||
&aesni_generate1("dec",$key,$rounds);
|
||
$code.=<<___;
|
||
xorps @tweak[1],$inout0
|
||
movups $inout0,($out)
|
||
|
||
.Lxts_dec_steal:
|
||
movzb 16($inp),%eax # borrow $rounds ...
|
||
movzb ($out),%ecx # ... and $key
|
||
lea 1($inp),$inp
|
||
mov %al,($out)
|
||
mov %cl,16($out)
|
||
lea 1($out),$out
|
||
sub \$1,$len
|
||
jnz .Lxts_dec_steal
|
||
|
||
sub $len_,$out # rewind $out
|
||
mov $key_,$key # restore $key
|
||
mov $rnds_,$rounds # restore $rounds
|
||
|
||
movups ($out),$inout0
|
||
xorps @tweak[0],$inout0
|
||
___
|
||
&aesni_generate1("dec",$key,$rounds);
|
||
$code.=<<___;
|
||
xorps @tweak[0],$inout0
|
||
movups $inout0,($out)
|
||
|
||
.Lxts_dec_ret:
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps 0x60(%rsp),%xmm6
|
||
movaps 0x70(%rsp),%xmm7
|
||
movaps 0x80(%rsp),%xmm8
|
||
movaps 0x90(%rsp),%xmm9
|
||
movaps 0xa0(%rsp),%xmm10
|
||
movaps 0xb0(%rsp),%xmm11
|
||
movaps 0xc0(%rsp),%xmm12
|
||
movaps 0xd0(%rsp),%xmm13
|
||
movaps 0xe0(%rsp),%xmm14
|
||
movaps 0xf0(%rsp),%xmm15
|
||
___
|
||
$code.=<<___;
|
||
lea (%rbp),%rsp
|
||
pop %rbp
|
||
.Lxts_dec_epilogue:
|
||
ret
|
||
.size aesni_xts_decrypt,.-aesni_xts_decrypt
|
||
___
|
||
} }}
|
||
|
||
########################################################################
|
||
# void $PREFIX_cbc_encrypt (const void *inp, void *out,
|
||
# size_t length, const AES_KEY *key,
|
||
# unsigned char *ivp,const int enc);
|
||
{
|
||
my $frame_size = 0x10 + ($win64?0x40:0); # used in decrypt
|
||
$code.=<<___;
|
||
.globl ${PREFIX}_cbc_encrypt
|
||
.type ${PREFIX}_cbc_encrypt,\@function,6
|
||
.align 16
|
||
${PREFIX}_cbc_encrypt:
|
||
test $len,$len # check length
|
||
jz .Lcbc_ret
|
||
|
||
mov 240($key),$rnds_ # key->rounds
|
||
mov $key,$key_ # backup $key
|
||
test %r9d,%r9d # 6th argument
|
||
jz .Lcbc_decrypt
|
||
#--------------------------- CBC ENCRYPT ------------------------------#
|
||
movups ($ivp),$inout0 # load iv as initial state
|
||
mov $rnds_,$rounds
|
||
cmp \$16,$len
|
||
jb .Lcbc_enc_tail
|
||
sub \$16,$len
|
||
jmp .Lcbc_enc_loop
|
||
.align 16
|
||
.Lcbc_enc_loop:
|
||
movups ($inp),$inout1 # load input
|
||
lea 16($inp),$inp
|
||
#xorps $inout1,$inout0
|
||
___
|
||
&aesni_generate1("enc",$key,$rounds,$inout0,$inout1);
|
||
$code.=<<___;
|
||
mov $rnds_,$rounds # restore $rounds
|
||
mov $key_,$key # restore $key
|
||
movups $inout0,0($out) # store output
|
||
lea 16($out),$out
|
||
sub \$16,$len
|
||
jnc .Lcbc_enc_loop
|
||
add \$16,$len
|
||
jnz .Lcbc_enc_tail
|
||
movups $inout0,($ivp)
|
||
jmp .Lcbc_ret
|
||
|
||
.Lcbc_enc_tail:
|
||
mov $len,%rcx # zaps $key
|
||
xchg $inp,$out # $inp is %rsi and $out is %rdi now
|
||
.long 0x9066A4F3 # rep movsb
|
||
mov \$16,%ecx # zero tail
|
||
sub $len,%rcx
|
||
xor %eax,%eax
|
||
.long 0x9066AAF3 # rep stosb
|
||
lea -16(%rdi),%rdi # rewind $out by 1 block
|
||
mov $rnds_,$rounds # restore $rounds
|
||
mov %rdi,%rsi # $inp and $out are the same
|
||
mov $key_,$key # restore $key
|
||
xor $len,$len # len=16
|
||
jmp .Lcbc_enc_loop # one more spin
|
||
#--------------------------- CBC DECRYPT ------------------------------#
|
||
.align 16
|
||
.Lcbc_decrypt:
|
||
lea (%rsp),%rax
|
||
push %rbp
|
||
sub \$$frame_size,%rsp
|
||
and \$-16,%rsp # Linux kernel stack can be incorrectly seeded
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps %xmm6,0x10(%rsp)
|
||
movaps %xmm7,0x20(%rsp)
|
||
movaps %xmm8,0x30(%rsp)
|
||
movaps %xmm9,0x40(%rsp)
|
||
.Lcbc_decrypt_body:
|
||
___
|
||
$code.=<<___;
|
||
lea -8(%rax),%rbp
|
||
movups ($ivp),$iv
|
||
mov $rnds_,$rounds
|
||
cmp \$0x70,$len
|
||
jbe .Lcbc_dec_tail
|
||
shr \$1,$rnds_
|
||
sub \$0x70,$len
|
||
mov $rnds_,$rounds
|
||
movaps $iv,(%rsp)
|
||
jmp .Lcbc_dec_loop8_enter
|
||
.align 16
|
||
.Lcbc_dec_loop8:
|
||
movaps $rndkey0,(%rsp) # save IV
|
||
movups $inout7,($out)
|
||
lea 0x10($out),$out
|
||
.Lcbc_dec_loop8_enter:
|
||
$movkey ($key),$rndkey0
|
||
movups ($inp),$inout0 # load input
|
||
movups 0x10($inp),$inout1
|
||
$movkey 16($key),$rndkey1
|
||
|
||
lea 32($key),$key
|
||
movdqu 0x20($inp),$inout2
|
||
xorps $rndkey0,$inout0
|
||
movdqu 0x30($inp),$inout3
|
||
xorps $rndkey0,$inout1
|
||
movdqu 0x40($inp),$inout4
|
||
aesdec $rndkey1,$inout0
|
||
pxor $rndkey0,$inout2
|
||
movdqu 0x50($inp),$inout5
|
||
aesdec $rndkey1,$inout1
|
||
pxor $rndkey0,$inout3
|
||
movdqu 0x60($inp),$inout6
|
||
aesdec $rndkey1,$inout2
|
||
pxor $rndkey0,$inout4
|
||
movdqu 0x70($inp),$inout7
|
||
aesdec $rndkey1,$inout3
|
||
pxor $rndkey0,$inout5
|
||
dec $rounds
|
||
aesdec $rndkey1,$inout4
|
||
pxor $rndkey0,$inout6
|
||
aesdec $rndkey1,$inout5
|
||
pxor $rndkey0,$inout7
|
||
$movkey ($key),$rndkey0
|
||
aesdec $rndkey1,$inout6
|
||
aesdec $rndkey1,$inout7
|
||
$movkey 16($key),$rndkey1
|
||
|
||
call .Ldec_loop8_enter
|
||
|
||
movups ($inp),$rndkey1 # re-load input
|
||
movups 0x10($inp),$rndkey0
|
||
xorps (%rsp),$inout0 # ^= IV
|
||
xorps $rndkey1,$inout1
|
||
movups 0x20($inp),$rndkey1
|
||
xorps $rndkey0,$inout2
|
||
movups 0x30($inp),$rndkey0
|
||
xorps $rndkey1,$inout3
|
||
movups 0x40($inp),$rndkey1
|
||
xorps $rndkey0,$inout4
|
||
movups 0x50($inp),$rndkey0
|
||
xorps $rndkey1,$inout5
|
||
movups 0x60($inp),$rndkey1
|
||
xorps $rndkey0,$inout6
|
||
movups 0x70($inp),$rndkey0 # IV
|
||
xorps $rndkey1,$inout7
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
mov $rnds_,$rounds # restore $rounds
|
||
movups $inout4,0x40($out)
|
||
mov $key_,$key # restore $key
|
||
movups $inout5,0x50($out)
|
||
lea 0x80($inp),$inp
|
||
movups $inout6,0x60($out)
|
||
lea 0x70($out),$out
|
||
sub \$0x80,$len
|
||
ja .Lcbc_dec_loop8
|
||
|
||
movaps $inout7,$inout0
|
||
movaps $rndkey0,$iv
|
||
add \$0x70,$len
|
||
jle .Lcbc_dec_tail_collected
|
||
movups $inout0,($out)
|
||
lea 1($rnds_,$rnds_),$rounds
|
||
lea 0x10($out),$out
|
||
.Lcbc_dec_tail:
|
||
movups ($inp),$inout0
|
||
movaps $inout0,$in0
|
||
cmp \$0x10,$len
|
||
jbe .Lcbc_dec_one
|
||
|
||
movups 0x10($inp),$inout1
|
||
movaps $inout1,$in1
|
||
cmp \$0x20,$len
|
||
jbe .Lcbc_dec_two
|
||
|
||
movups 0x20($inp),$inout2
|
||
movaps $inout2,$in2
|
||
cmp \$0x30,$len
|
||
jbe .Lcbc_dec_three
|
||
|
||
movups 0x30($inp),$inout3
|
||
cmp \$0x40,$len
|
||
jbe .Lcbc_dec_four
|
||
|
||
movups 0x40($inp),$inout4
|
||
cmp \$0x50,$len
|
||
jbe .Lcbc_dec_five
|
||
|
||
movups 0x50($inp),$inout5
|
||
cmp \$0x60,$len
|
||
jbe .Lcbc_dec_six
|
||
|
||
movups 0x60($inp),$inout6
|
||
movaps $iv,(%rsp) # save IV
|
||
call _aesni_decrypt8
|
||
movups ($inp),$rndkey1
|
||
movups 0x10($inp),$rndkey0
|
||
xorps (%rsp),$inout0 # ^= IV
|
||
xorps $rndkey1,$inout1
|
||
movups 0x20($inp),$rndkey1
|
||
xorps $rndkey0,$inout2
|
||
movups 0x30($inp),$rndkey0
|
||
xorps $rndkey1,$inout3
|
||
movups 0x40($inp),$rndkey1
|
||
xorps $rndkey0,$inout4
|
||
movups 0x50($inp),$rndkey0
|
||
xorps $rndkey1,$inout5
|
||
movups 0x60($inp),$iv # IV
|
||
xorps $rndkey0,$inout6
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
movups $inout5,0x50($out)
|
||
lea 0x60($out),$out
|
||
movaps $inout6,$inout0
|
||
sub \$0x70,$len
|
||
jmp .Lcbc_dec_tail_collected
|
||
.align 16
|
||
.Lcbc_dec_one:
|
||
___
|
||
&aesni_generate1("dec",$key,$rounds);
|
||
$code.=<<___;
|
||
xorps $iv,$inout0
|
||
movaps $in0,$iv
|
||
sub \$0x10,$len
|
||
jmp .Lcbc_dec_tail_collected
|
||
.align 16
|
||
.Lcbc_dec_two:
|
||
xorps $inout2,$inout2
|
||
call _aesni_decrypt3
|
||
xorps $iv,$inout0
|
||
xorps $in0,$inout1
|
||
movups $inout0,($out)
|
||
movaps $in1,$iv
|
||
movaps $inout1,$inout0
|
||
lea 0x10($out),$out
|
||
sub \$0x20,$len
|
||
jmp .Lcbc_dec_tail_collected
|
||
.align 16
|
||
.Lcbc_dec_three:
|
||
call _aesni_decrypt3
|
||
xorps $iv,$inout0
|
||
xorps $in0,$inout1
|
||
movups $inout0,($out)
|
||
xorps $in1,$inout2
|
||
movups $inout1,0x10($out)
|
||
movaps $in2,$iv
|
||
movaps $inout2,$inout0
|
||
lea 0x20($out),$out
|
||
sub \$0x30,$len
|
||
jmp .Lcbc_dec_tail_collected
|
||
.align 16
|
||
.Lcbc_dec_four:
|
||
call _aesni_decrypt4
|
||
xorps $iv,$inout0
|
||
movups 0x30($inp),$iv
|
||
xorps $in0,$inout1
|
||
movups $inout0,($out)
|
||
xorps $in1,$inout2
|
||
movups $inout1,0x10($out)
|
||
xorps $in2,$inout3
|
||
movups $inout2,0x20($out)
|
||
movaps $inout3,$inout0
|
||
lea 0x30($out),$out
|
||
sub \$0x40,$len
|
||
jmp .Lcbc_dec_tail_collected
|
||
.align 16
|
||
.Lcbc_dec_five:
|
||
xorps $inout5,$inout5
|
||
call _aesni_decrypt6
|
||
movups 0x10($inp),$rndkey1
|
||
movups 0x20($inp),$rndkey0
|
||
xorps $iv,$inout0
|
||
xorps $in0,$inout1
|
||
xorps $rndkey1,$inout2
|
||
movups 0x30($inp),$rndkey1
|
||
xorps $rndkey0,$inout3
|
||
movups 0x40($inp),$iv
|
||
xorps $rndkey1,$inout4
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
lea 0x40($out),$out
|
||
movaps $inout4,$inout0
|
||
sub \$0x50,$len
|
||
jmp .Lcbc_dec_tail_collected
|
||
.align 16
|
||
.Lcbc_dec_six:
|
||
call _aesni_decrypt6
|
||
movups 0x10($inp),$rndkey1
|
||
movups 0x20($inp),$rndkey0
|
||
xorps $iv,$inout0
|
||
xorps $in0,$inout1
|
||
xorps $rndkey1,$inout2
|
||
movups 0x30($inp),$rndkey1
|
||
xorps $rndkey0,$inout3
|
||
movups 0x40($inp),$rndkey0
|
||
xorps $rndkey1,$inout4
|
||
movups 0x50($inp),$iv
|
||
xorps $rndkey0,$inout5
|
||
movups $inout0,($out)
|
||
movups $inout1,0x10($out)
|
||
movups $inout2,0x20($out)
|
||
movups $inout3,0x30($out)
|
||
movups $inout4,0x40($out)
|
||
lea 0x50($out),$out
|
||
movaps $inout5,$inout0
|
||
sub \$0x60,$len
|
||
jmp .Lcbc_dec_tail_collected
|
||
.align 16
|
||
.Lcbc_dec_tail_collected:
|
||
and \$15,$len
|
||
movups $iv,($ivp)
|
||
jnz .Lcbc_dec_tail_partial
|
||
movups $inout0,($out)
|
||
jmp .Lcbc_dec_ret
|
||
.align 16
|
||
.Lcbc_dec_tail_partial:
|
||
movaps $inout0,(%rsp)
|
||
mov \$16,%rcx
|
||
mov $out,%rdi
|
||
sub $len,%rcx
|
||
lea (%rsp),%rsi
|
||
.long 0x9066A4F3 # rep movsb
|
||
|
||
.Lcbc_dec_ret:
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps 0x10(%rsp),%xmm6
|
||
movaps 0x20(%rsp),%xmm7
|
||
movaps 0x30(%rsp),%xmm8
|
||
movaps 0x40(%rsp),%xmm9
|
||
___
|
||
$code.=<<___;
|
||
lea (%rbp),%rsp
|
||
pop %rbp
|
||
.Lcbc_ret:
|
||
ret
|
||
.size ${PREFIX}_cbc_encrypt,.-${PREFIX}_cbc_encrypt
|
||
___
|
||
}
|
||
# int $PREFIX_set_[en|de]crypt_key (const unsigned char *userKey,
|
||
# int bits, AES_KEY *key)
|
||
{ my ($inp,$bits,$key) = @_4args;
|
||
$bits =~ s/%r/%e/;
|
||
|
||
$code.=<<___;
|
||
.globl ${PREFIX}_set_decrypt_key
|
||
.type ${PREFIX}_set_decrypt_key,\@abi-omnipotent
|
||
.align 16
|
||
${PREFIX}_set_decrypt_key:
|
||
.byte 0x48,0x83,0xEC,0x08 # sub rsp,8
|
||
call __aesni_set_encrypt_key
|
||
shl \$4,$bits # rounds-1 after _aesni_set_encrypt_key
|
||
test %eax,%eax
|
||
jnz .Ldec_key_ret
|
||
lea 16($key,$bits),$inp # points at the end of key schedule
|
||
|
||
$movkey ($key),%xmm0 # just swap
|
||
$movkey ($inp),%xmm1
|
||
$movkey %xmm0,($inp)
|
||
$movkey %xmm1,($key)
|
||
lea 16($key),$key
|
||
lea -16($inp),$inp
|
||
|
||
.Ldec_key_inverse:
|
||
$movkey ($key),%xmm0 # swap and inverse
|
||
$movkey ($inp),%xmm1
|
||
aesimc %xmm0,%xmm0
|
||
aesimc %xmm1,%xmm1
|
||
lea 16($key),$key
|
||
lea -16($inp),$inp
|
||
$movkey %xmm0,16($inp)
|
||
$movkey %xmm1,-16($key)
|
||
cmp $key,$inp
|
||
ja .Ldec_key_inverse
|
||
|
||
$movkey ($key),%xmm0 # inverse middle
|
||
aesimc %xmm0,%xmm0
|
||
$movkey %xmm0,($inp)
|
||
.Ldec_key_ret:
|
||
add \$8,%rsp
|
||
ret
|
||
.LSEH_end_set_decrypt_key:
|
||
.size ${PREFIX}_set_decrypt_key,.-${PREFIX}_set_decrypt_key
|
||
___
|
||
|
||
# This is based on submission by
|
||
#
|
||
# Huang Ying <ying.huang@intel.com>
|
||
# Vinodh Gopal <vinodh.gopal@intel.com>
|
||
# Kahraman Akdemir
|
||
#
|
||
# Agressively optimized in respect to aeskeygenassist's critical path
|
||
# and is contained in %xmm0-5 to meet Win64 ABI requirement.
|
||
#
|
||
$code.=<<___;
|
||
.globl ${PREFIX}_set_encrypt_key
|
||
.type ${PREFIX}_set_encrypt_key,\@abi-omnipotent
|
||
.align 16
|
||
${PREFIX}_set_encrypt_key:
|
||
__aesni_set_encrypt_key:
|
||
.byte 0x48,0x83,0xEC,0x08 # sub rsp,8
|
||
mov \$-1,%rax
|
||
test $inp,$inp
|
||
jz .Lenc_key_ret
|
||
test $key,$key
|
||
jz .Lenc_key_ret
|
||
|
||
movups ($inp),%xmm0 # pull first 128 bits of *userKey
|
||
xorps %xmm4,%xmm4 # low dword of xmm4 is assumed 0
|
||
lea 16($key),%rax
|
||
cmp \$256,$bits
|
||
je .L14rounds
|
||
cmp \$192,$bits
|
||
je .L12rounds
|
||
cmp \$128,$bits
|
||
jne .Lbad_keybits
|
||
|
||
.L10rounds:
|
||
mov \$9,$bits # 10 rounds for 128-bit key
|
||
$movkey %xmm0,($key) # round 0
|
||
aeskeygenassist \$0x1,%xmm0,%xmm1 # round 1
|
||
call .Lkey_expansion_128_cold
|
||
aeskeygenassist \$0x2,%xmm0,%xmm1 # round 2
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x4,%xmm0,%xmm1 # round 3
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x8,%xmm0,%xmm1 # round 4
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x10,%xmm0,%xmm1 # round 5
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x20,%xmm0,%xmm1 # round 6
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x40,%xmm0,%xmm1 # round 7
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x80,%xmm0,%xmm1 # round 8
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x1b,%xmm0,%xmm1 # round 9
|
||
call .Lkey_expansion_128
|
||
aeskeygenassist \$0x36,%xmm0,%xmm1 # round 10
|
||
call .Lkey_expansion_128
|
||
$movkey %xmm0,(%rax)
|
||
mov $bits,80(%rax) # 240(%rdx)
|
||
xor %eax,%eax
|
||
jmp .Lenc_key_ret
|
||
|
||
.align 16
|
||
.L12rounds:
|
||
movq 16($inp),%xmm2 # remaining 1/3 of *userKey
|
||
mov \$11,$bits # 12 rounds for 192
|
||
$movkey %xmm0,($key) # round 0
|
||
aeskeygenassist \$0x1,%xmm2,%xmm1 # round 1,2
|
||
call .Lkey_expansion_192a_cold
|
||
aeskeygenassist \$0x2,%xmm2,%xmm1 # round 2,3
|
||
call .Lkey_expansion_192b
|
||
aeskeygenassist \$0x4,%xmm2,%xmm1 # round 4,5
|
||
call .Lkey_expansion_192a
|
||
aeskeygenassist \$0x8,%xmm2,%xmm1 # round 5,6
|
||
call .Lkey_expansion_192b
|
||
aeskeygenassist \$0x10,%xmm2,%xmm1 # round 7,8
|
||
call .Lkey_expansion_192a
|
||
aeskeygenassist \$0x20,%xmm2,%xmm1 # round 8,9
|
||
call .Lkey_expansion_192b
|
||
aeskeygenassist \$0x40,%xmm2,%xmm1 # round 10,11
|
||
call .Lkey_expansion_192a
|
||
aeskeygenassist \$0x80,%xmm2,%xmm1 # round 11,12
|
||
call .Lkey_expansion_192b
|
||
$movkey %xmm0,(%rax)
|
||
mov $bits,48(%rax) # 240(%rdx)
|
||
xor %rax, %rax
|
||
jmp .Lenc_key_ret
|
||
|
||
.align 16
|
||
.L14rounds:
|
||
movups 16($inp),%xmm2 # remaning half of *userKey
|
||
mov \$13,$bits # 14 rounds for 256
|
||
lea 16(%rax),%rax
|
||
$movkey %xmm0,($key) # round 0
|
||
$movkey %xmm2,16($key) # round 1
|
||
aeskeygenassist \$0x1,%xmm2,%xmm1 # round 2
|
||
call .Lkey_expansion_256a_cold
|
||
aeskeygenassist \$0x1,%xmm0,%xmm1 # round 3
|
||
call .Lkey_expansion_256b
|
||
aeskeygenassist \$0x2,%xmm2,%xmm1 # round 4
|
||
call .Lkey_expansion_256a
|
||
aeskeygenassist \$0x2,%xmm0,%xmm1 # round 5
|
||
call .Lkey_expansion_256b
|
||
aeskeygenassist \$0x4,%xmm2,%xmm1 # round 6
|
||
call .Lkey_expansion_256a
|
||
aeskeygenassist \$0x4,%xmm0,%xmm1 # round 7
|
||
call .Lkey_expansion_256b
|
||
aeskeygenassist \$0x8,%xmm2,%xmm1 # round 8
|
||
call .Lkey_expansion_256a
|
||
aeskeygenassist \$0x8,%xmm0,%xmm1 # round 9
|
||
call .Lkey_expansion_256b
|
||
aeskeygenassist \$0x10,%xmm2,%xmm1 # round 10
|
||
call .Lkey_expansion_256a
|
||
aeskeygenassist \$0x10,%xmm0,%xmm1 # round 11
|
||
call .Lkey_expansion_256b
|
||
aeskeygenassist \$0x20,%xmm2,%xmm1 # round 12
|
||
call .Lkey_expansion_256a
|
||
aeskeygenassist \$0x20,%xmm0,%xmm1 # round 13
|
||
call .Lkey_expansion_256b
|
||
aeskeygenassist \$0x40,%xmm2,%xmm1 # round 14
|
||
call .Lkey_expansion_256a
|
||
$movkey %xmm0,(%rax)
|
||
mov $bits,16(%rax) # 240(%rdx)
|
||
xor %rax,%rax
|
||
jmp .Lenc_key_ret
|
||
|
||
.align 16
|
||
.Lbad_keybits:
|
||
mov \$-2,%rax
|
||
.Lenc_key_ret:
|
||
add \$8,%rsp
|
||
ret
|
||
.LSEH_end_set_encrypt_key:
|
||
|
||
.align 16
|
||
.Lkey_expansion_128:
|
||
$movkey %xmm0,(%rax)
|
||
lea 16(%rax),%rax
|
||
.Lkey_expansion_128_cold:
|
||
shufps \$0b00010000,%xmm0,%xmm4
|
||
xorps %xmm4, %xmm0
|
||
shufps \$0b10001100,%xmm0,%xmm4
|
||
xorps %xmm4, %xmm0
|
||
shufps \$0b11111111,%xmm1,%xmm1 # critical path
|
||
xorps %xmm1,%xmm0
|
||
ret
|
||
|
||
.align 16
|
||
.Lkey_expansion_192a:
|
||
$movkey %xmm0,(%rax)
|
||
lea 16(%rax),%rax
|
||
.Lkey_expansion_192a_cold:
|
||
movaps %xmm2, %xmm5
|
||
.Lkey_expansion_192b_warm:
|
||
shufps \$0b00010000,%xmm0,%xmm4
|
||
movdqa %xmm2,%xmm3
|
||
xorps %xmm4,%xmm0
|
||
shufps \$0b10001100,%xmm0,%xmm4
|
||
pslldq \$4,%xmm3
|
||
xorps %xmm4,%xmm0
|
||
pshufd \$0b01010101,%xmm1,%xmm1 # critical path
|
||
pxor %xmm3,%xmm2
|
||
pxor %xmm1,%xmm0
|
||
pshufd \$0b11111111,%xmm0,%xmm3
|
||
pxor %xmm3,%xmm2
|
||
ret
|
||
|
||
.align 16
|
||
.Lkey_expansion_192b:
|
||
movaps %xmm0,%xmm3
|
||
shufps \$0b01000100,%xmm0,%xmm5
|
||
$movkey %xmm5,(%rax)
|
||
shufps \$0b01001110,%xmm2,%xmm3
|
||
$movkey %xmm3,16(%rax)
|
||
lea 32(%rax),%rax
|
||
jmp .Lkey_expansion_192b_warm
|
||
|
||
.align 16
|
||
.Lkey_expansion_256a:
|
||
$movkey %xmm2,(%rax)
|
||
lea 16(%rax),%rax
|
||
.Lkey_expansion_256a_cold:
|
||
shufps \$0b00010000,%xmm0,%xmm4
|
||
xorps %xmm4,%xmm0
|
||
shufps \$0b10001100,%xmm0,%xmm4
|
||
xorps %xmm4,%xmm0
|
||
shufps \$0b11111111,%xmm1,%xmm1 # critical path
|
||
xorps %xmm1,%xmm0
|
||
ret
|
||
|
||
.align 16
|
||
.Lkey_expansion_256b:
|
||
$movkey %xmm0,(%rax)
|
||
lea 16(%rax),%rax
|
||
|
||
shufps \$0b00010000,%xmm2,%xmm4
|
||
xorps %xmm4,%xmm2
|
||
shufps \$0b10001100,%xmm2,%xmm4
|
||
xorps %xmm4,%xmm2
|
||
shufps \$0b10101010,%xmm1,%xmm1 # critical path
|
||
xorps %xmm1,%xmm2
|
||
ret
|
||
.size ${PREFIX}_set_encrypt_key,.-${PREFIX}_set_encrypt_key
|
||
.size __aesni_set_encrypt_key,.-__aesni_set_encrypt_key
|
||
___
|
||
}
|
||
|
||
$code.=<<___;
|
||
.align 64
|
||
.Lbswap_mask:
|
||
.byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0
|
||
.Lincrement32:
|
||
.long 6,6,6,0
|
||
.Lincrement64:
|
||
.long 1,0,0,0
|
||
.Lxts_magic:
|
||
.long 0x87,0,1,0
|
||
|
||
.asciz "AES for Intel AES-NI, CRYPTOGAMS by <appro\@openssl.org>"
|
||
.align 64
|
||
___
|
||
|
||
# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
|
||
# CONTEXT *context,DISPATCHER_CONTEXT *disp)
|
||
if ($win64) {
|
||
$rec="%rcx";
|
||
$frame="%rdx";
|
||
$context="%r8";
|
||
$disp="%r9";
|
||
|
||
$code.=<<___;
|
||
.extern __imp_RtlVirtualUnwind
|
||
___
|
||
$code.=<<___ if ($PREFIX eq "aesni");
|
||
.type ecb_se_handler,\@abi-omnipotent
|
||
.align 16
|
||
ecb_se_handler:
|
||
push %rsi
|
||
push %rdi
|
||
push %rbx
|
||
push %rbp
|
||
push %r12
|
||
push %r13
|
||
push %r14
|
||
push %r15
|
||
pushfq
|
||
sub \$64,%rsp
|
||
|
||
mov 152($context),%rax # pull context->Rsp
|
||
|
||
jmp .Lcommon_seh_tail
|
||
.size ecb_se_handler,.-ecb_se_handler
|
||
|
||
.type ccm64_se_handler,\@abi-omnipotent
|
||
.align 16
|
||
ccm64_se_handler:
|
||
push %rsi
|
||
push %rdi
|
||
push %rbx
|
||
push %rbp
|
||
push %r12
|
||
push %r13
|
||
push %r14
|
||
push %r15
|
||
pushfq
|
||
sub \$64,%rsp
|
||
|
||
mov 120($context),%rax # pull context->Rax
|
||
mov 248($context),%rbx # pull context->Rip
|
||
|
||
mov 8($disp),%rsi # disp->ImageBase
|
||
mov 56($disp),%r11 # disp->HandlerData
|
||
|
||
mov 0(%r11),%r10d # HandlerData[0]
|
||
lea (%rsi,%r10),%r10 # prologue label
|
||
cmp %r10,%rbx # context->Rip<prologue label
|
||
jb .Lcommon_seh_tail
|
||
|
||
mov 152($context),%rax # pull context->Rsp
|
||
|
||
mov 4(%r11),%r10d # HandlerData[1]
|
||
lea (%rsi,%r10),%r10 # epilogue label
|
||
cmp %r10,%rbx # context->Rip>=epilogue label
|
||
jae .Lcommon_seh_tail
|
||
|
||
lea 0(%rax),%rsi # %xmm save area
|
||
lea 512($context),%rdi # &context.Xmm6
|
||
mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax)
|
||
.long 0xa548f3fc # cld; rep movsq
|
||
lea 0x58(%rax),%rax # adjust stack pointer
|
||
|
||
jmp .Lcommon_seh_tail
|
||
.size ccm64_se_handler,.-ccm64_se_handler
|
||
|
||
.type ctr32_se_handler,\@abi-omnipotent
|
||
.align 16
|
||
ctr32_se_handler:
|
||
push %rsi
|
||
push %rdi
|
||
push %rbx
|
||
push %rbp
|
||
push %r12
|
||
push %r13
|
||
push %r14
|
||
push %r15
|
||
pushfq
|
||
sub \$64,%rsp
|
||
|
||
mov 120($context),%rax # pull context->Rax
|
||
mov 248($context),%rbx # pull context->Rip
|
||
|
||
lea .Lctr32_body(%rip),%r10
|
||
cmp %r10,%rbx # context->Rip<"prologue" label
|
||
jb .Lcommon_seh_tail
|
||
|
||
mov 152($context),%rax # pull context->Rsp
|
||
|
||
lea .Lctr32_ret(%rip),%r10
|
||
cmp %r10,%rbx
|
||
jae .Lcommon_seh_tail
|
||
|
||
lea 0x20(%rax),%rsi # %xmm save area
|
||
lea 512($context),%rdi # &context.Xmm6
|
||
mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax)
|
||
.long 0xa548f3fc # cld; rep movsq
|
||
|
||
jmp .Lcommon_rbp_tail
|
||
.size ctr32_se_handler,.-ctr32_se_handler
|
||
|
||
.type xts_se_handler,\@abi-omnipotent
|
||
.align 16
|
||
xts_se_handler:
|
||
push %rsi
|
||
push %rdi
|
||
push %rbx
|
||
push %rbp
|
||
push %r12
|
||
push %r13
|
||
push %r14
|
||
push %r15
|
||
pushfq
|
||
sub \$64,%rsp
|
||
|
||
mov 120($context),%rax # pull context->Rax
|
||
mov 248($context),%rbx # pull context->Rip
|
||
|
||
mov 8($disp),%rsi # disp->ImageBase
|
||
mov 56($disp),%r11 # disp->HandlerData
|
||
|
||
mov 0(%r11),%r10d # HandlerData[0]
|
||
lea (%rsi,%r10),%r10 # prologue lable
|
||
cmp %r10,%rbx # context->Rip<prologue label
|
||
jb .Lcommon_seh_tail
|
||
|
||
mov 152($context),%rax # pull context->Rsp
|
||
|
||
mov 4(%r11),%r10d # HandlerData[1]
|
||
lea (%rsi,%r10),%r10 # epilogue label
|
||
cmp %r10,%rbx # context->Rip>=epilogue label
|
||
jae .Lcommon_seh_tail
|
||
|
||
lea 0x60(%rax),%rsi # %xmm save area
|
||
lea 512($context),%rdi # & context.Xmm6
|
||
mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax)
|
||
.long 0xa548f3fc # cld; rep movsq
|
||
|
||
jmp .Lcommon_rbp_tail
|
||
.size xts_se_handler,.-xts_se_handler
|
||
___
|
||
$code.=<<___;
|
||
.type cbc_se_handler,\@abi-omnipotent
|
||
.align 16
|
||
cbc_se_handler:
|
||
push %rsi
|
||
push %rdi
|
||
push %rbx
|
||
push %rbp
|
||
push %r12
|
||
push %r13
|
||
push %r14
|
||
push %r15
|
||
pushfq
|
||
sub \$64,%rsp
|
||
|
||
mov 152($context),%rax # pull context->Rsp
|
||
mov 248($context),%rbx # pull context->Rip
|
||
|
||
lea .Lcbc_decrypt(%rip),%r10
|
||
cmp %r10,%rbx # context->Rip<"prologue" label
|
||
jb .Lcommon_seh_tail
|
||
|
||
lea .Lcbc_decrypt_body(%rip),%r10
|
||
cmp %r10,%rbx # context->Rip<cbc_decrypt_body
|
||
jb .Lrestore_cbc_rax
|
||
|
||
lea .Lcbc_ret(%rip),%r10
|
||
cmp %r10,%rbx # context->Rip>="epilogue" label
|
||
jae .Lcommon_seh_tail
|
||
|
||
lea 16(%rax),%rsi # %xmm save area
|
||
lea 512($context),%rdi # &context.Xmm6
|
||
mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax)
|
||
.long 0xa548f3fc # cld; rep movsq
|
||
|
||
.Lcommon_rbp_tail:
|
||
mov 160($context),%rax # pull context->Rbp
|
||
mov (%rax),%rbp # restore saved %rbp
|
||
lea 8(%rax),%rax # adjust stack pointer
|
||
mov %rbp,160($context) # restore context->Rbp
|
||
jmp .Lcommon_seh_tail
|
||
|
||
.Lrestore_cbc_rax:
|
||
mov 120($context),%rax
|
||
|
||
.Lcommon_seh_tail:
|
||
mov 8(%rax),%rdi
|
||
mov 16(%rax),%rsi
|
||
mov %rax,152($context) # restore context->Rsp
|
||
mov %rsi,168($context) # restore context->Rsi
|
||
mov %rdi,176($context) # restore context->Rdi
|
||
|
||
mov 40($disp),%rdi # disp->ContextRecord
|
||
mov $context,%rsi # context
|
||
mov \$154,%ecx # sizeof(CONTEXT)
|
||
.long 0xa548f3fc # cld; rep movsq
|
||
|
||
mov $disp,%rsi
|
||
xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
|
||
mov 8(%rsi),%rdx # arg2, disp->ImageBase
|
||
mov 0(%rsi),%r8 # arg3, disp->ControlPc
|
||
mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
|
||
mov 40(%rsi),%r10 # disp->ContextRecord
|
||
lea 56(%rsi),%r11 # &disp->HandlerData
|
||
lea 24(%rsi),%r12 # &disp->EstablisherFrame
|
||
mov %r10,32(%rsp) # arg5
|
||
mov %r11,40(%rsp) # arg6
|
||
mov %r12,48(%rsp) # arg7
|
||
mov %rcx,56(%rsp) # arg8, (NULL)
|
||
call *__imp_RtlVirtualUnwind(%rip)
|
||
|
||
mov \$1,%eax # ExceptionContinueSearch
|
||
add \$64,%rsp
|
||
popfq
|
||
pop %r15
|
||
pop %r14
|
||
pop %r13
|
||
pop %r12
|
||
pop %rbp
|
||
pop %rbx
|
||
pop %rdi
|
||
pop %rsi
|
||
ret
|
||
.size cbc_se_handler,.-cbc_se_handler
|
||
|
||
.section .pdata
|
||
.align 4
|
||
___
|
||
$code.=<<___ if ($PREFIX eq "aesni");
|
||
.rva .LSEH_begin_aesni_ecb_encrypt
|
||
.rva .LSEH_end_aesni_ecb_encrypt
|
||
.rva .LSEH_info_ecb
|
||
|
||
.rva .LSEH_begin_aesni_ccm64_encrypt_blocks
|
||
.rva .LSEH_end_aesni_ccm64_encrypt_blocks
|
||
.rva .LSEH_info_ccm64_enc
|
||
|
||
.rva .LSEH_begin_aesni_ccm64_decrypt_blocks
|
||
.rva .LSEH_end_aesni_ccm64_decrypt_blocks
|
||
.rva .LSEH_info_ccm64_dec
|
||
|
||
.rva .LSEH_begin_aesni_ctr32_encrypt_blocks
|
||
.rva .LSEH_end_aesni_ctr32_encrypt_blocks
|
||
.rva .LSEH_info_ctr32
|
||
|
||
.rva .LSEH_begin_aesni_xts_encrypt
|
||
.rva .LSEH_end_aesni_xts_encrypt
|
||
.rva .LSEH_info_xts_enc
|
||
|
||
.rva .LSEH_begin_aesni_xts_decrypt
|
||
.rva .LSEH_end_aesni_xts_decrypt
|
||
.rva .LSEH_info_xts_dec
|
||
___
|
||
$code.=<<___;
|
||
.rva .LSEH_begin_${PREFIX}_cbc_encrypt
|
||
.rva .LSEH_end_${PREFIX}_cbc_encrypt
|
||
.rva .LSEH_info_cbc
|
||
|
||
.rva ${PREFIX}_set_decrypt_key
|
||
.rva .LSEH_end_set_decrypt_key
|
||
.rva .LSEH_info_key
|
||
|
||
.rva ${PREFIX}_set_encrypt_key
|
||
.rva .LSEH_end_set_encrypt_key
|
||
.rva .LSEH_info_key
|
||
.section .xdata
|
||
.align 8
|
||
___
|
||
$code.=<<___ if ($PREFIX eq "aesni");
|
||
.LSEH_info_ecb:
|
||
.byte 9,0,0,0
|
||
.rva ecb_se_handler
|
||
.LSEH_info_ccm64_enc:
|
||
.byte 9,0,0,0
|
||
.rva ccm64_se_handler
|
||
.rva .Lccm64_enc_body,.Lccm64_enc_ret # HandlerData[]
|
||
.LSEH_info_ccm64_dec:
|
||
.byte 9,0,0,0
|
||
.rva ccm64_se_handler
|
||
.rva .Lccm64_dec_body,.Lccm64_dec_ret # HandlerData[]
|
||
.LSEH_info_ctr32:
|
||
.byte 9,0,0,0
|
||
.rva ctr32_se_handler
|
||
.LSEH_info_xts_enc:
|
||
.byte 9,0,0,0
|
||
.rva xts_se_handler
|
||
.rva .Lxts_enc_body,.Lxts_enc_epilogue # HandlerData[]
|
||
.LSEH_info_xts_dec:
|
||
.byte 9,0,0,0
|
||
.rva xts_se_handler
|
||
.rva .Lxts_dec_body,.Lxts_dec_epilogue # HandlerData[]
|
||
___
|
||
$code.=<<___;
|
||
.LSEH_info_cbc:
|
||
.byte 9,0,0,0
|
||
.rva cbc_se_handler
|
||
.LSEH_info_key:
|
||
.byte 0x01,0x04,0x01,0x00
|
||
.byte 0x04,0x02,0x00,0x00 # sub rsp,8
|
||
___
|
||
}
|
||
|
||
sub rex {
|
||
local *opcode=shift;
|
||
my ($dst,$src)=@_;
|
||
my $rex=0;
|
||
|
||
$rex|=0x04 if($dst>=8);
|
||
$rex|=0x01 if($src>=8);
|
||
push @opcode,$rex|0x40 if($rex);
|
||
}
|
||
|
||
sub aesni {
|
||
my $line=shift;
|
||
my @opcode=(0x66);
|
||
|
||
if ($line=~/(aeskeygenassist)\s+\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) {
|
||
rex(\@opcode,$4,$3);
|
||
push @opcode,0x0f,0x3a,0xdf;
|
||
push @opcode,0xc0|($3&7)|(($4&7)<<3); # ModR/M
|
||
my $c=$2;
|
||
push @opcode,$c=~/^0/?oct($c):$c;
|
||
return ".byte\t".join(',',@opcode);
|
||
}
|
||
elsif ($line=~/(aes[a-z]+)\s+%xmm([0-9]+),\s*%xmm([0-9]+)/) {
|
||
my %opcodelet = (
|
||
"aesimc" => 0xdb,
|
||
"aesenc" => 0xdc, "aesenclast" => 0xdd,
|
||
"aesdec" => 0xde, "aesdeclast" => 0xdf
|
||
);
|
||
return undef if (!defined($opcodelet{$1}));
|
||
rex(\@opcode,$3,$2);
|
||
push @opcode,0x0f,0x38,$opcodelet{$1};
|
||
push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M
|
||
return ".byte\t".join(',',@opcode);
|
||
}
|
||
return $line;
|
||
}
|
||
|
||
$code =~ s/\`([^\`]*)\`/eval($1)/gem;
|
||
$code =~ s/\b(aes.*%xmm[0-9]+).*$/aesni($1)/gem;
|
||
|
||
print $code;
|
||
|
||
close STDOUT;
|