Commit graph

1320 commits

Author SHA1 Message Date
KaoruToda
208fb891e3 Since return is inconsistent, I removed unnecessary parentheses and
unified them.
- return (0); -> return 0;
- return (1); -> return 1;
- return (-1); -> return -1;

Reviewed-by: Stephen Henson <steve@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4500)
2017-10-09 13:17:09 +01:00
Samuel Weiser
9f9442918a BN_copy now propagates BN_FLG_CONSTTIME
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4377)
2017-09-27 10:03:37 +01:00
Samuel Weiser
3de81a5912 Fixed error in propagating BN_FLG_CONSTTIME flag through BN_MONT_CTX_set, which could lead to information disclosure on RSA primes p and q.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4377)
2017-09-27 10:03:31 +01:00
Pauli
677963e5a4 e_os.h removal from other headers and source files.
Removed e_os.h from all bar three headers (apps/apps.h crypto/bio/bio_lcl.h and
ssl/ssl_locl.h).

Added e_os.h into the files that need it now.

Directly reference internal/nelem.h when required.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4188)
2017-08-30 07:20:43 +10:00
Kazuki Yamaguchi
c9b820aa3c Fix BN_print()
Fix a typo made in commit 27c6d63dad (#4202).

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4235)
2017-08-24 01:28:15 +09:00
Pauli
27c6d63dad Improvement the formatting in bn_print.c
Movely removal of unnecessary brackets but some could be bugs addressed too.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4202)
2017-08-23 07:42:22 +10:00
Rich Salz
176db6dc51 Use "" not <> for internal/ includes
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4217)
2017-08-22 09:54:20 -04:00
Pauli
a1df06b363 This has been added to avoid the situation where some host ctype.h functions
return true for characters > 127.  I.e. they are allowing extended ASCII
characters through which then cause problems.  E.g. marking superscript '2' as
a number then causes the common (ch - '0') conversion to number to fail
miserably.  Likewise letters with diacritical marks can also cause problems.

If a non-ASCII character set is being used (currently only EBCDIC), it is
adjusted for.

The implementation uses a single table with a bit for each of the defined
classes.  These functions accept an int argument and fail for
values out of range or for characters outside of the ASCII set.  They will
work for both signed and unsigned character inputs.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4102)
2017-08-22 09:45:25 +10:00
Matt Caswell
437e5050d5 Remove OPENSSL_assert() usage from crypto/bn
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3740)
2017-08-21 08:44:44 +01:00
Rich Salz
ddc6a5c8f5 Add RAND_priv_bytes() for private keys
Add a new global DRBG for private keys used by RAND_priv_bytes.

Add BN_priv_rand() and BN_priv_rand_range() which use RAND_priv_bytes().
Change callers to use the appropriate BN_priv... function.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4076)
2017-08-03 10:45:17 -04:00
Rich Salz
75e2c87765 Switch from ossl_rand to DRBG rand
If RAND_add wraps around, XOR with existing. Add test to drbgtest that
does the wrap-around.

Re-order seeding and stop after first success.

Add RAND_poll_ex()

Use the DF and therefore lower RANDOMNESS_NEEDED.  Also, for child DRBG's,
mix in the address as the personalization bits.

Centralize the entropy callbacks, from drbg_lib to rand_lib.
(Conceptually, entropy is part of the enclosing application.)
Thanks to Dr. Matthias St Pierre for the suggestion.

Various code cleanups:
    -Make state an enum; inline RANDerr calls.
    -Add RAND_POLL_RETRIES (thanks Pauli for the idea)
    -Remove most RAND_seed calls from rest of library
    -Rename DRBG_CTX to RAND_DRBG, etc.
    -Move some code from drbg_lib to drbg_rand; drbg_lib is now only the
     implementation of NIST DRBG.
    -Remove blocklength

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4019)
2017-08-03 09:23:28 -04:00
Andy Polyakov
57c835aca7 bn/bn_lcl.h: restore formatting.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2017-07-31 10:03:10 +02:00
Andy Polyakov
7aca329824 bn/bn_lcl.h: use __int128 whenever possible, not only on MIPS.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2017-07-31 10:02:52 +02:00
Andy Polyakov
46288370bf bn/bn_lcl.h: improve inline assembly coverage on PPC64.
[And move misplaced macros.]

Reviewed-by: Rich Salz <rsalz@openssl.org>
2017-07-31 10:02:31 +02:00
Pauli
86ba26c80a Address potential buffer overflows.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3878)
2017-07-07 13:37:06 +10:00
Pauli
b4df712aca change return (x) to return x
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3878)
2017-07-07 13:37:06 +10:00
Rich Salz
0904e79a6e Undo commit d420ac2
[extended tests]

Original text:
    Use BUF_strlcpy() instead of strcpy().
    Use BUF_strlcat() instead of strcat().
    Use BIO_snprintf() instead of sprintf().
    In some cases, keep better track of buffer lengths.
    This is part of a large change submitted by Markus Friedl <markus@openbsd.org>

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/3701)
2017-07-05 11:32:35 +10:00
Rich Salz
5ecff87d66 BN_pseudo_rand is really BN_rand
And BN_pseudo_rand_range is really BN_rand_range.
Document that we might deprecate those functions.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3743)
2017-07-03 19:26:56 -04:00
Rich Salz
dcf6e50f48 Merge Intel copyright notice into standard
This is done with the kind permission of Intel.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3813)
2017-06-30 12:01:54 -04:00
Paul Yang
edea42c602 Change to check last return value of BN_CTX_get
To make it consistent in the code base

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/3749)
2017-06-26 15:40:16 +02:00
Paul Yang
e8e5597606 Fix inaccurate comments in bn_prime.c
As well as a coding style nit is fixed.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/3763)
2017-06-26 14:59:30 +02:00
Rich Salz
aa8f3d76fc Modify Sun copyright to follow OpenSSL style
Approved by Oracle.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/3585)
2017-06-20 11:13:45 -04:00
Bernd Edlinger
93a8b3ba79 Remove a pointless "#if 0" block from BN_mul.
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3683)
2017-06-17 14:18:26 +02:00
Bernd Edlinger
5419dadd4b Fix possible crash in X931 code.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3675)
2017-06-14 09:35:48 -04:00
Rich Salz
52df25cf2e make error tables const and separate header file
Run perltidy on util/mkerr
Change some mkerr flags, write some doc comments
Make generated tables "const" when genearting lib-internal ones.
Add "state" file for mkerr
Renerate error tables and headers
Rationalize declaration of ERR_load_XXX_strings
Fix out-of-tree build
Add -static; sort flags/vars for options.
Also tweak code output
Moved engines/afalg to engines (from master)
Use -static flag
Standard engine #include's of errors
Don't linewrap err string tables unless necessary

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3392)
2017-06-07 15:12:03 -04:00
David Benjamin
e195c8a256 Remove filename argument to x86 asm_init.
The assembler already knows the actual path to the generated file and,
in other perlasm architectures, is left to manage debug symbols itself.
Notably, in OpenSSL 1.1.x's new build system, which allows a separate
build directory, converting .pl to .s as the scripts currently do result
in the wrong paths.

This also avoids inconsistencies from some of the files using $0 and
some passing in the filename.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3431)
2017-05-11 17:00:23 -04:00
Bernd Edlinger
018fcbec38 Fix gcc-7 warnings.
- Mostly missing fall thru comments
- And uninitialized value used in sslapitest.c

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3440)
2017-05-11 19:39:38 +02:00
Pauli
3f97052392 Remove dead code.
The second BN_is_zero test can never be true.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3434)
2017-05-11 11:03:40 -04:00
David Benjamin
8b24f94209 Numbers greater than 1 are usually non-negative.
BN_is_prime_fasttest_ex begins by rejecting if a <= 1. Then it goes to
set A := abs(a), but a cannot be negative at this point.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3275)
2017-04-21 12:22:37 -04:00
Adam Langley
6e64c56066 Small primes are primes too.
Previously, BN_is_prime_fasttest_ex, when doing trial-division, would
check whether the candidate is a multiple of a number of small primes
and, if so, reject it. However, three is a multiple of three yet is
still a prime number.

This change accepts small primes as prime when doing trial-division.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3264)
2017-04-20 16:10:10 -04:00
FdaSilvaYY
69687aa829 More typo fixes
Fix some comments too
[skip ci]

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3069)
2017-03-29 07:14:29 +02:00
FdaSilvaYY
cbe9524183 Refomat a few comments on 80 cols
Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3066)
2017-03-28 16:16:49 -04:00
Andy Polyakov
120a9e1a82 bn/asm/sparcv9-mont.pl: fix squaring code path.
This module is used only with odd input lengths, i.e. not used in normal
PKI cases, on contemporary processors. The problem was "illuminated" by
fuzzing tests.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2017-03-24 12:18:35 +01:00
Matt Caswell
d08086645f Ensure we don't call memcpy with a NULL pointer
Commit d5aa14dd simplified the bn_expand_internal() and BN_copy() functions.
Unfortunately it also removed some checks which are still required,
otherwise we call memcpy passing in NULL which is not allowed.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2836)
2017-03-03 23:49:24 +00:00
Bernd Edlinger
d734582275 Reset executable bits on files where not needed.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2835)
2017-03-03 09:13:40 +01:00
Andy Polyakov
eac54143fd bn/asm: clean up unused PA-RISC modules.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2017-03-02 16:19:54 +01:00
Emilia Kasper
d5aa14dde5 Remove memcpy unrolling in bn_lib.c
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
2017-02-28 19:47:36 +01:00
Matt Caswell
7f517c2676 Remove some commented out code in libcrypto
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2774)
2017-02-28 16:02:11 +00:00
Matt Caswell
1fef2f8050 Remove dead code in bn
There are a number of symbols in bn which are internal only and never used
by anything. They should be removed.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2766)
2017-02-28 14:46:24 +00:00
Emilia Kasper
b53338cbf8 Clean up references to FIPS
This removes the fips configure option. This option is broken as the
required FIPS code is not available.

FIPS_mode() and FIPS_mode_set() are retained for compatibility, but
FIPS_mode() always returns 0, and FIPS_mode_set() can only be used to
turn FIPS mode off.

Reviewed-by: Stephen Henson <steve@openssl.org>
2017-02-28 15:26:25 +01:00
Emilia Kasper
223a90cc9a Remove BN_DEBUG_TRIX
Reviewed-by: Rich Salz <rsalz@openssl.org>
2017-02-28 15:24:30 +01:00
David Benjamin
25b802bb85 Fix typo in x86_64-mont5.pl CFI directives
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2655)
2017-02-17 10:32:13 +01:00
Adam Langley
3f55ec6792 Fix copy-pasteism in CFI directives.
I don't think this actually affects anything since the cfi_restore
directives aren't strictly needed anyway. (The old values are still in
memory so either will do.)

CLA: trivial

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2582)
2017-02-10 20:28:28 +01:00
Andy Polyakov
76e624a003 bn/asm/x86_64*: add DWARF CFI directives.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2017-02-09 20:05:16 +01:00
Andy Polyakov
53b3310076 bn/asm/rsaz-avx2.pl: refine Win64 SE handler.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2017-02-09 20:00:10 +01:00
Andy Polyakov
384e6de4c7 x86_64 assembly pack: Win64 SEH face-lift.
- harmonize handlers with guidelines and themselves;
- fix some bugs in handlers;
- add missing handlers in chacha and ecp_nistz256 modules;

Reviewed-by: Rich Salz <rsalz@openssl.org>
2017-02-06 08:21:42 +01:00
Richard Levitte
0a2dcb6990 bn: fix occurance of negative zero in BN_rshift1()
Reviewed-by: Rich Salz <rsalz@openssl.org>
2017-02-01 02:31:41 +01:00
Geoff Thorpe
38d1b3cc02 bn: fix occurances of negative zero
The BIGNUM behaviour is supposed to be "consistent" when going into and
out of APIs, where "consistent" means 'top' is set minimally and that
'neg' (negative) is not set if the BIGNUM is zero (which is iff 'top' is
zero, due to the previous point).

The BN_DEBUG testing (make test) caught the cases that this patch
corrects.

Note, bn_correct_top() could have been used instead, but that is intended
for where 'top' is expected to (sometimes) require adjustment after direct
word-array manipulation, and so is heavier-weight. Here, we are just
catching the negative-zero case, so we test and correct for that
explicitly, in-place.

Change-Id: Iddefbd3c28a13d935648932beebcc765d5b85ae7
Signed-off-by: Geoff Thorpe <geoff@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1672)
2017-02-01 02:06:39 +01:00
Geoff Thorpe
2fc9b36a96 bn: catch negative zero as an error
Change-Id: I5ab72ad0aae9069b47d5b7b7b9e25bd1b7afa251
Signed-off-by: Geoff Thorpe <geoff@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1672)
2017-02-01 02:06:38 +01:00
Geoff Thorpe
0b50ac1a0f bn: fix BN_DEBUG + BN_DEBUG_RAND support
Couple of updates to make this code work properly again;
* use OPENSSL_assert() instead of assert() (and #include <assert.h>)
* the circular-dependency-avoidance uses RAND_bytes() (not pseudo)

Change-Id: Iefb5a9dd73f71fd81c1268495c54a64378955354
Signed-off-by: Geoff Thorpe <geoff@openssl.org>

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1672)
2017-02-01 02:06:38 +01:00
Andy Polyakov
3f4bcf5bb6 bn/asm/x86_64-mont5.pl: fix carry bug in bn_sqr8x_internal.
CVE-2017-3732

Reviewed-by: Rich Salz <rsalz@openssl.org>
2017-01-26 10:54:01 +00:00
Kurt Roeckx
eeab356c29 Don't call memcpy with NULL as source
Calling it with lenght 0 and NULL as source is undefined behaviour.

Reviewed-by: Rich Salz <rsalz@openssl.org>
GH: #2089
2016-12-15 21:45:25 +01:00
Andy Polyakov
90fc4832a3 bn/asm/ppc-mont.pl: signal no-op in 32-bit bit build.
The bug was introduced in 80d27cdb84,
one too many instructions was removed. It went unnoticed, because
new subroutine introduced in previous commit is called in real-life
RSA/DSA/DH cases, while original code is called only in rare tests.
The bug was caught in test_fuzz.

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-11-25 17:18:24 +01:00
Rich Salz
78e09b53a4 Check return value of some BN functions.
Factorise multiple bn_get_top(group->field) calls
Add missing checks on some conditional BN_copy return value
Add missing checks on some BN_copy return value
Add missing checks on a few bn_wexpand return value

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1626)
2016-11-15 18:54:28 -05:00
Richard Levitte
10b0b5ecd9 Revert "Move algorithm specific ppccap code from crypto/ppccap.c"
Now that we can link specifically with static libraries, the immediate
need to split ppccap.c (and eventually other *cap.c files) is no more.

This reverts commit e3fb4d3d52.

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-11-10 16:24:02 +01:00
Andy Polyakov
2fac86d9ab bn/asm/x86_64-mont.pl: fix for CVE-2016-7055 (Low severity).
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-11-10 10:33:21 +00:00
Richard Levitte
e3fb4d3d52 Move algorithm specific ppccap code from crypto/ppccap.c
Having that code in one central object file turned out to cause
trouble when building test/modes_internal_test.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1883)
2016-11-09 02:40:36 +01:00
FdaSilvaYY
318447bceb Missing BN_RECP_CTX field init.
BN_RECP_CTX_new direclty use bn_init to avoid twice memset calls

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1879)
2016-11-08 17:44:32 -05:00
Rich Salz
e5e71f2857 Zero stack variable with DSA nonce
Thanks to Falko Strenzke for bringing this to our attention.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1882)
2016-11-08 17:20:13 -05:00
Andy Polyakov
80d27cdb84 ppccap.c: engage new multipplication and squaring subroutines.
[And remove FPU mutiplication subroutine.]

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-10-24 20:00:40 +02:00
Andy Polyakov
68f6d2a02c bn/asm/ppc-mont.pl: add optimized multiplication and squaring subroutines.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-10-24 20:00:33 +02:00
Andy Polyakov
0310becc82 bn/asm/ppc-mont.pl: prepare for extension.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-10-24 20:00:08 +02:00
David Benjamin
0e831db0a6 Fix up bn_prime.pl formatting.
Align at 5 characters, not 4. There are 5-digit numbers in the output.
Also avoid emitting an extra blank line and trailing whitespace.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
2016-10-10 23:36:22 +01:00
David Benjamin
609b0852e4 Remove trailing whitespace from some files.
The prevailing style seems to not have trailing whitespace, but a few
lines do. This is mostly in the perlasm files, but a few C files got
them after the reformat. This is the result of:

  find . -name '*.pl' | xargs sed -E -i '' -e 's/( |'$'\t'')*$//'
  find . -name '*.c' | xargs sed -E -i '' -e 's/( |'$'\t'')*$//'
  find . -name '*.h' | xargs sed -E -i '' -e 's/( |'$'\t'')*$//'

Then bn_prime.h was excluded since this is a generated file.

Note mkerr.pl has some changes in a heredoc for some help output, but
other lines there lack trailing whitespace too.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
2016-10-10 23:36:21 +01:00
Andy Polyakov
cc2cb7bf63 bn/bn_lcl.h: improve interoperability with clang and Android NDK.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-09-13 13:34:12 +02:00
Rich Salz
01c09f9fde Misc BN fixes
Never output -0; make "negative zero" an impossibility.
Do better checking on BN_rand top/bottom requirements and #bits.
Update doc.
Ignoring trailing garbage in BN_asc2bn.

Port this commit from boringSSL: https://boringssl.googlesource.com/boringssl/+/899b9b19a4cd3fe526aaf5047ab9234cdca19f7d%5E!/
        Ensure |BN_div| never gives negative zero in the no_branch code.

        Have |bn_correct_top| fix |bn->neg| if the input is zero so that we
        don't have negative zeros lying around.

        Thanks to Brian Smith for noticing.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-09-06 10:42:01 -04:00
Andy Polyakov
947716c187 MIPS assembly pack: adapt it for MIPS[32|64]R6.
MIPS[32|64]R6 is binary and source incompatible with previous MIPS ISA
specifications. Fortunately it's still possible to resolve differences
in source code with standard pre-processor and switching to trap-free
version of addition and subtraction instructions.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-09-02 13:33:17 +02:00
Andy Polyakov
68b4a6e91f crypto/bn/*: x86[_64] division instruction doesn't handle constants, change constraint from 'g' to 'r'.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
2016-08-31 16:45:00 +02:00
Andy Polyakov
fca8f5ded8 bn/asm/ppc.pl: harmonize .size directive in bn_mul_words.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-08-29 23:12:05 +02:00
Matt Caswell
fe81a1b051 Remove useless assignment
The variable assignment c1 is never read before it is overwritten.

Reviewed-by: Tim Hudson <tjh@openssl.org>
2016-08-24 11:25:23 +01:00
David Benjamin
2338ad8885 Fix math in BN_bn2dec comment.
The bound on log(2)/3 on the second line is incorrect and has an extra
zero compared to the divisions in the third line. log(2)/3 = 0.10034...
which is bounded by 0.101 and not 0.1001. The divisions actually
correspond to 0.101 which is fine. The third line also dropped a factor
of three.

The actual code appears to be fine. Just the comments are wrong.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
2016-08-23 20:37:58 +01:00
Matt Caswell
4d94bd362d Check for malloc error in bn_x931p.c
Ensure BN_CTX_get() has been successful

Reviewed-by: Tim Hudson <tjh@openssl.org>
2016-08-23 00:19:15 +01:00
Andy Polyakov
3ba1ef829c bn/asm/x86[_64]-mont*.pl: implement slightly alternative page-walking.
Original strategy for page-walking was adjust stack pointer and then
touch pages in order. This kind of asks for double-fault, because
if touch fails, then signal will be delivered to frame above adjusted
stack pointer. But touching pages prior adjusting stack pointer would
upset valgrind. As compromise let's adjust stack pointer in pages,
touching top of the stack. This still asks for double-fault, but at
least prevents corruption of neighbour stack if allocation is to
overstep the guard page.

Also omit predict-non-taken hints as they reportedly trigger illegal
instructions in some VM setups.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-08-22 14:58:32 +02:00
Kazuki Yamaguchi
099e2968ed Fix overflow check in BN_bn2dec()
Fix an off by one error in the overflow check added by 07bed46f33
("Check for errors in BN_bn2dec()").

Reviewed-by: Stephen Henson <steve@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
2016-08-22 13:38:48 +01:00
Dr. Stephen Henson
07bed46f33 Check for errors in BN_bn2dec()
If an oversize BIGNUM is presented to BN_bn2dec() it can cause
BN_div_word() to fail and not reduce the value of 't' resulting
in OOB writes to the bn_data buffer and eventually crashing.

Fix by checking return value of BN_div_word() and checking writes
don't overflow buffer.

Thanks to Shi Lei for reporting this bug.

CVE-2016-2182

Reviewed-by: Tim Hudson <tjh@openssl.org>
2016-08-16 00:19:19 +01:00
Jakub Zelenka
0818dbadf3 Never return -1 from BN_exp
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1455)
2016-08-14 20:52:13 +01:00
Rich Salz
2301d91dd5 Change callers to use the new constants.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1429)
2016-08-10 10:07:37 -04:00
klemens
6025001707 spelling fixes, just comments and readme.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1413)
2016-08-05 19:07:30 -04:00
FdaSilvaYY
700b814549 Fix some style issues...
extra spacing and 80 cols

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1366)
2016-08-02 09:59:23 +02:00
Kurt Roeckx
69588edbaa Check for errors allocating the error strings.
Reviewed-by: Richard Levitte <levitte@openssl.org>
GH: #1330
2016-07-20 19:20:53 +02:00
FdaSilvaYY
e8aa8b6c8f Fix a few if(, for(, while( inside code.
Fix some indentation at the same time

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1292)
2016-07-20 07:21:53 -04:00
Rich Salz
aebb9aac48 RT4593: Add space after comma (doc nits)
Update find-doc-nits to find errors in SYNOPSIS (the most common
place where they were missing).

Reviewed-by: Matt Caswell <matt@openssl.org>
2016-07-19 09:29:53 -04:00
Richard Levitte
0483f58652 Simplify INCLUDE statements in build.info files
Now that INCLUDE considers both the source and build trees, no need
for the rel2abs perl fragment hacks any more.

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-07-01 18:36:08 +02:00
Matt Caswell
3ce2fdabe6 Convert memset calls to OPENSSL_cleanse
Ensure things really do get cleared when we intend them to.

Addresses an OCAP Audit issue.

Reviewed-by: Andy Polyakov <appro@openssl.org>
2016-06-30 15:51:57 +01:00
FdaSilvaYY
02e112a885 Whitespace cleanup in crypto
Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1264)
2016-06-29 09:56:39 -04:00
David Benjamin
d70a562714 Handle BN_mod_word failures.
As of 37258dadaa and the corresponding upstream
change, BN_mod_word may fail, like BN_div_word. Handle this properly. Thanks to
Brian Smith for pointing this out. See BoringSSL's
44bedc348d9491e63c7ed1438db100a4b8a830be.

Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>

GH: #1251
2016-06-25 11:01:34 +02:00
David Benjamin
748e85308e Fix BN_is_prime* calls.
This function returns a tri-state -1 on error. See BoringSSL's
53409ee3d7595ed37da472bc73b010cd2c8a5ffd.

Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>

GH: #1251
2016-06-25 11:01:30 +02:00
FdaSilvaYY
823146d65f Useless header include of openssl/rand.h
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1168)
2016-06-18 16:30:24 -04:00
Matt Caswell
d356dc5619 Add some missing return value checks
Some misc return value checks

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-06-13 17:38:39 +01:00
Andy Polyakov
7d6284057b bn/bn_add.c: favour counted loops over ifs and breaks.
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-06-13 12:35:39 +02:00
Kurt Roeckx
f3cf2251de Avoid creating illegal pointers
Found by tis-interpreter

Reviewed-by: Rich Salz <rsalz@openssl.org>

GH: #1179
2016-06-11 16:43:53 +02:00
Rich Salz
53934822ac Clean up "generic" intro pod files.
Files like dh.pod, etc., mostly duplicated the API-specific pod files.
Removed the duplicated content; that often mean the whole file could
be removed.  Some of the content about internals got moved into README
files in the source tree.  Some content (e.g., err.pod) got moved
into other pod pages.

Annotate generic pages, remove dup NAME

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-06-09 16:39:19 -04:00
Matt Caswell
37258dadaa Fix BN_mod_word bug
On systems where we do not have BN_ULLONG (e.g. typically 64 bit systems)
then BN_mod_word() can return incorrect results if the supplied modulus is
too big.

RT#4501

Reviewed-by: Andy Polyakov <appro@openssl.org>
2016-06-07 21:55:31 +01:00
Matt Caswell
02d6070430 Fix test failures when using enable-ubsan
Numerous test failures were occuring when Configured with enable-ubsan
although they could all be traced back to one issue.

Reviewed-by: Andy Polyakov <appro@openssl.org>
2016-06-02 15:36:22 +01:00
Rich Salz
44c8a5e2b9 Add final(?) set of copyrights.
Add copyright to missing assembler files.
Add copyrights to missing test/* files.
Add copyrights
Various source and misc files.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-06-01 11:27:25 -04:00
Andy Polyakov
cfe1d9929e x86_64 assembly pack: tolerate spaces in source directory name.
[as it is now quoting $output is not required, but done just in case]

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-29 14:12:51 +02:00
Andy Polyakov
bb83c8796b bn/bn_exp.c: explain 'volatile' in MOD_EXP_CTIME_COPY_FROM_PREBUF.
Reviewed-by: Tim Hudson <tjh@openssl.org>
2016-05-27 22:58:49 +02:00
huangqinjin
58c03e3b92 fix BN_hex2bn()/BN_dec2bn() memory leak
Reviewed-by: Kurt Roeckx <kurt@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
2016-05-27 10:04:26 +01:00
Richard Levitte
7030e35d07 build.info files: add quotes around any spec that may contain spaces
RT#4492

Reviewed-by: Tim Hudson <tjh@openssl.org>
2016-05-25 11:50:44 +02:00
Todd Short
e0a675e211 Clean up RAND_bytes() calls
When RAND_pseudo_bytes() was replaced with RAND_bytes(), this case
was not reduced to a simple RAND_bytes() call.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1117)
2016-05-24 08:55:12 -04:00
Rich Salz
0cd0a820ab Remove unused error/function codes.
Add script to find unused err/reason codes
Remove unused reason codes.
Remove entries for unused functions

Reviewed-by: Matt Caswell <matt@openssl.org>
2016-05-23 15:04:23 -04:00
Richard Levitte
f3fcd4d5e7 VMS: remove last VAX vestiges
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-05-23 19:36:55 +02:00
Kurt Roeckx
1544583bbc Avoid creating an illegal pointer
Found by tis-interpreter

Reviewed-by: Rich Salz <rsalz@openssl.org>

GH: #1106
2016-05-22 12:05:15 +02:00
Kurt Roeckx
acc600928d Avoid creating an illegal pointer
Found by tis-interpreter

Reviewed-by: Rich Salz <rsalz@openssl.org>

GH: #1106
2016-05-22 12:05:13 +02:00
Rich Salz
6aa36e8e5a Add OpenSSL copyright to .pl files
Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-21 08:23:39 -04:00
Rich Salz
b6cff313cb Manual fixes after copyright consolidation
Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-17 17:38:18 -04:00
Rich Salz
4f22f40507 Copyright consolidation 06/10
Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-17 14:51:04 -04:00
Rich Salz
49445f21da Use OPENSSL_hexchar2int
Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-16 15:21:10 -04:00
Viktor Dukhovni
5c4328f04f Fold threads.h into crypto.h making API public
Document thread-safe lock creation

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-16 12:16:26 -04:00
Andy Polyakov
c6cb8e3ca4 Alpha assembly pack: make it work on Linux.
Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-04 08:51:08 +02:00
Dmitry-Me
399de49699 Improve comment
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-03 12:30:09 +02:00
Matt Caswell
b8f1c116a3 Don't free the BIGNUM passed to BN_mpi2bn
Commit 91fb42dd fixed a leak but introduced a problem where a parameter
is erroneously freed instead.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-04-29 09:05:23 +01:00
Matt Caswell
d71eb667c4 Don't leak memory on error in BN_generate_prime_ex
In BN_generate_prime_ex() we do some sanity checks first and return
with an error if they fail. We should do that *before* allocating any
resources to avoid a memory leak.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-04-28 13:13:09 +01:00
Matt Caswell
91fb42ddbe Free a BIGNUM on error in BN_mpi2bn
In the BN_mpi2bn() function, a failure of a call to BN_bin2bn() could
result in the leak of a previously allocated BIGNUM value.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-04-28 13:13:09 +01:00
Rich Salz
3fb2cf1ad1 Update copyright; generated files.
Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-04-20 10:33:15 -04:00
Richard Levitte
45c6e23c97 Remove --classic build entirely
The Unix build was the last to retain the classic build scheme.  The
new unified scheme has matured enough, even though some details may
need polishing.

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-04-20 16:04:56 +02:00
Rich Salz
e0a651945c Copyright consolidation: perl files
Add copyright to most .pl files
This does NOT cover any .pl file that has other copyright in it.
Most of those are Andy's but some are public domain.
Fix typo's in some existing files.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-04-20 09:45:40 -04:00
Rich Salz
9021a5dfb3 Rename some lowercase API's
Make OBJ_name_cmp internal
Rename idea_xxx to IDEA_xxx
Rename get_rfc_xxx to BN_get_rfc_xxx
Rename v3_addr and v3_asid functions to X509v3_...

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-04-18 08:22:00 -04:00
Andy Polyakov
20b88bb160 PPC assembly pack: remove branch hints.
As it turns out branch hints grew as kind of a misconception. In
addition their interpretation by GNU assembler is affected by
assembler flags and can end up with opposite meaning on different
processors. As we have to loose quite a lot on misinterprerations,
especially on newer processors, we just omit them altogether.

Reviewed-by: Tim Hudson <tjh@openssl.org>
2016-04-07 21:27:24 +02:00
Andy Polyakov
463a7b8cb0 Clean-up *_DEBUG options.
Since NDEBUG is defined unconditionally on command line for release
builds, we can omit *_DEBUG options in favour of effective "all-on"
in debug builds exercised though CI.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
2016-04-07 21:18:00 +02:00
Richard Levitte
007c80eae4 Remove the remainder of util/mk1mf.pl and companion scripts
This removes all scripts that deal with MINFO as well, since that's
only used by mk1mf.

Reviewed-by: Andy Polyakov <appro@openssl.org>
2016-03-21 11:02:00 +01:00
Rich Salz
23d38992fc Remove ultrix/mips support.
Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-03-17 15:29:15 -04:00
Emilia Kasper
0a86f66821 On Windows, page walking is known as __chkstk.
Reviewed-by: Andy Polyakov <appro@openssl.org>
2016-03-15 23:56:23 +01:00
Emilia Kasper
1bf80d9302 Explain *cough*-dows
Reviewed-by: Andy Polyakov <appro@openssl.org>
2016-03-15 23:56:17 +01:00
Andy Polyakov
6bfb7db35a build.info/Makefile.in: Itanium fixups.
Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-03-14 13:50:43 +01:00
Richard Levitte
f425f9dcff Add $(LIB_CFLAGS) for any build.info generator that uses $(CFLAGS)
The reason to do so is that some of the generators detect PIC flags
like -fPIC and -KPIC, and those are normally delivered in LD_CFLAGS.

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-03-13 00:02:55 +01:00
Andy Polyakov
12940f08f4 crypto/*/build.info: SPARC-specific fixups.
Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-03-11 15:29:55 +01:00
Richard Levitte
a5aa63a456 Fix some assembler generating scripts for better unification
Some of these scripts would recognise an output parameter if it looks
like a file path.  That works both in both the classic and new build
schemes.  Some fo these scripts would only recognise it if it's a
basename (i.e. no directory component).  Those need to be corrected,
as the output parameter in the new build scheme is more likely to
contain a directory component than not.

Reviewed-by: Andy Polyakov <appro@openssl.org>
2016-03-11 00:54:31 +01:00
Richard Levitte
f0667b1430 Add include directory options for assembler files that include from crypto/
Closes RT#4406

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-03-10 20:30:47 +01:00
Richard Levitte
5b14d5b5a0 Make sure the effect of "pic" / "no-pic" is used with assembler compilations
Before the 'Introduce the "pic" / "no-pic" config option' commit, the
shared_cflag value for the chosen config would be part of the make
variable CFLAG, which got replicated into CFLAGS and ASFLAGS.

Since said commit, the shared_cflag value has become a make variable
of its own, SHARED_CFLAG (which is left empty in a "no-pic" build).

However, ASFLAGS was forgotten.  That's what's corrected with this
change.

Reviewed-by: Andy Polyakov <appro@openssl.org>
2016-03-09 12:33:23 +01:00
Alessandro Ghedini
0b1a07c8a7 Convert RSA blinding to new multi-threading API
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-03-08 23:52:48 +00:00
Andy Polyakov
eb77e8886d SPARCv9 assembly pack: unify build rules and argument handling.
Make all scripts produce .S, make interpretation of $(CFLAGS)
pre-processor's responsibility, start accepting $(PERLASM_SCHEME).
[$(PERLASM_SCHEME) is redundant in this case, because there are
no deviataions between Solaris and Linux assemblers. This is
purely to unify .pl->.S handling across all targets.]

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-03-08 15:51:06 +01:00
Alessandro Ghedini
d188a53617 Convert CRYPTO_LOCK_{DH,DSA,RSA} to new multi-threading API
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-03-08 09:07:32 -05:00
Richard Levitte
6bd7a4d96c Unified - adapt the generation of bignum assembler to use GENERATE
This gets rid of the BEGINRAW..ENDRAW sections in crypto/bn/build.info.

This also moves the assembler generating perl scripts to take the
output file name as last command line argument, where necessary.

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-03-07 18:25:56 +01:00
Andy Polyakov
adc4f1fc25 bn/asm/x86[_64]-mont*.pl: complement alloca with page-walking.
Some OSes, *cough*-dows, insist on stack being "wired" to
physical memory in strictly sequential manner, i.e. if stack
allocation spans two pages, then reference to farmost one can
be punishable by SEGV. But page walking can do good even on
other OSes, because it guarantees that villain thread hits
the guard page before it can make damage to innocent one...

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-03-07 14:58:14 +01:00
David Benjamin
bdbd3aea59 Consistently use arm_arch.h constants in armcap assembly code.
Most of the assembly uses constants from arm_arch.h, but a few references to
ARMV7_NEON don't. Consistently use the macros everywhere.

Signed-off-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-03-02 12:57:28 +01:00
Andy Polyakov
317be63875 bn/asm/x86_64-mont5.pl: unify gather procedure in hardly used path
and reorganize/harmonize post-conditions.

Additional hardening following on from CVE-2016-0702

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-03-01 13:34:22 +00:00
Andy Polyakov
8fc8f486f7 crypto/bn/x86_64-mont5.pl: constant-time gather procedure.
At the same time remove miniscule bias in final subtraction.
Performance penalty varies from platform to platform, and even with
key length. For rsa2048 sign it was observed to be 4% for Sandy
Bridge and 7% on Broadwell.

CVE-2016-0702

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-03-01 13:34:22 +00:00
Andy Polyakov
d6d422e1ec bn/asm/rsaz-avx2.pl: constant-time gather procedure.
Performance penalty is 2%.

CVE-2016-0702

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-03-01 13:34:22 +00:00
Andy Polyakov
5ea08bd2fe bn/asm/rsax-x86_64.pl: constant-time gather procedure.
Performance penalty is 2% on Linux and 5% on Windows.

CVE-2016-0702

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-03-01 13:34:22 +00:00
Andy Polyakov
d6482a82bc bn/bn_exp.c: constant-time MOD_EXP_CTIME_COPY_FROM_PREBUF.
Performance penalty varies from platform to platform, and even
key length. For rsa2048 sign it was observed to reach almost 10%.

CVE-2016-0702

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-03-01 13:34:22 +00:00
Matt Caswell
99ba9fd02f Fix BN_hex2bn/BN_dec2bn NULL ptr/heap corruption
In the BN_hex2bn function the number of hex digits is calculated using
an int value |i|. Later |bn_expand| is called with a value of |i * 4|.
For large values of |i| this can result in |bn_expand| not allocating any
memory because |i * 4| is negative. This leaves ret->d as NULL leading
to a subsequent NULL ptr deref. For very large values of |i|, the
calculation |i * 4| could be a positive value smaller than |i|. In this
case memory is allocated to ret->d, but it is insufficiently sized
leading to heap corruption. A similar issue exists in BN_dec2bn.

This could have security consequences if BN_hex2bn/BN_dec2bn is ever
called by user applications with very large untrusted hex/dec data. This is
anticipated to be a rare occurrence.

All OpenSSL internal usage of this function uses data that is not expected
to be untrusted, e.g. config file data or application command line
arguments. If user developed applications generate config file data based
on untrusted data then it is possible that this could also lead to security
consequences. This is also anticipated to be a rare.

Issue reported by Guido Vranken.

CVE-2016-0797

Reviewed-by: Andy Polyakov <appro@openssl.org>
2016-02-29 16:32:18 +00:00
David Woodhouse
78c830785c RT4339: Fix handling of <internal/bn_conf.h>
The entire contents of <internal/bn_conf.h> are unwanted in the UEFI
build because we have to do it differently there. To support building
for both 32-bit and 64-bit platforms without re-running the OpenSSL
Configure script, the EDK2 environment defines THIRTY_TWO_BIT or
SIXTY_FOUR_BIT for itself according to the target platform.

The current setup is broken, though. It checks for OPENSSL_SYS_UEFI but
before it's actually defined, since opensslconf.h hasn't yet been
included.

Let's fix that by including opensslconf.h. And also let's move the
bn_conf.h doesn't even need to *exist* in the UEFI build environment.

This is also GH PR736.

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
2016-02-23 13:18:23 -05:00
FdaSilvaYY
a2d0baa2d9 GH678: Add a few more zalloc
Remove some duplicated NULL/zero init.

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
2016-02-22 12:13:37 -05:00
Richard Levitte
45502bfe19 Always build library object files with shared library cflags
This takes us away from the idea that we know exactly how our static
libraries are going to get used.  Instead, we make them available to
build shareable things with, be it other shared libraries or DSOs.

On the other hand, we also have greater control of when the shared
library cflags.  They will never be used with object files meant got
binaries, such as apps/openssl or test/test*.

With unified, we take this a bit further and prepare for having to
deal with extra cflags specifically to be used with DSOs (dynamic
engines), libraries and binaries (applications).

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-02-20 16:51:31 +01:00
Richard Levitte
ce192ebed0 Remove all special make depend flags, as well as OPENSSL_DOING_MAKEDEPEND
All those flags existed because we had all the dependencies versioned
in the repository, and wanted to have it be consistent, no matter what
the local configuration was.  Now that the dependencies are gone from
the versioned Makefile.ins, it makes much more sense to use the exact
same flags as when compiling the object files.

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-02-18 23:43:09 +01:00
Rich Salz
d63a5e5e7d Remove outdated DEBUG flags.
Add -DBIO_DEBUG to --strict-warnings.
Remove comments about outdated debugging ifdef guards.
Remove md_rand ifdef guarding an assert; it doesn't seem used.
Remove the conf guards in conf_api since we use OPENSSL_assert, not assert.
For pkcs12 stuff put OPENSSL_ in front of the macro name.
Merge TLS_DEBUG into SSL_DEBUG.
Various things just turned on/off asserts, mainly for checking non-NULL
arguments, which is now removed: camellia, bn_ctx, crypto/modes.
Remove some old debug code, that basically just printed things to stderr:
  DEBUG_PRINT_UNKNOWN_CIPHERSUITES, DEBUG_ZLIB, OPENSSL_RI_DEBUG,
  RL_DEBUG, RSA_DEBUG, SCRYPT_DEBUG.
Remove OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-02-18 17:14:50 -05:00
Richard Levitte
4418e0302f In the unified scheme, there is no $(TOP), use $(SRCDIR) instead
Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-02-18 00:38:26 +01:00
Richard Levitte
de72be2e57 Pass $(CC) to perlasm scripts via the environment
It seems that on some platforms, the perlasm scripts call the C
compiler for certain checks.  These scripts need the environment
variable CC to have the C compiler command.

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-02-13 19:21:36 +01:00
Rich Salz
3577398360 Missing header include.
Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-02-11 08:47:57 -05:00