Commit graph

8 commits

Author SHA1 Message Date
Emilia Kasper
be109b9eec Fix undefined behaviour in shifts.
Td4 and Te4 are arrays of u8. A u8 << int promotes the u8 to an int first then shifts.
If the mathematical result of a shift (as modelled by lhs * 2^{rhs}) is not representable
in an integer, behaviour is undefined. In other words, you can't shift into the sign bit
of a signed integer. Fix this by casting to u32 whenever we're shifting left by 24.

(For consistency, cast other shifts, too.)

Caught by -fsanitize=shift

Submitted by Nick Lewycky (Google)

Reviewed-by: Andy Polyakov <appro@openssl.org>
(cherry picked from commit 8b37e5c14f)
2015-03-13 21:14:20 -07:00
Matt Caswell
0f344da8f7 Manually reformat aes_x86core.c and add it to the list of files skipped by
openssl-format-source

Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 09:28:14 +00:00
Tim Hudson
6977c7e2ba mark all block comments that need format preserving so that
indent will not alter them when reformatting comments

(cherry picked from commit 1d97c84351)

Conflicts:
	crypto/bn/bn_lcl.h
	crypto/bn/bn_prime.c
	crypto/engine/eng_all.c
	crypto/rc4/rc4_utl.c
	crypto/sha/sha.h
	ssl/kssl.c
	ssl/t1_lib.c

Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 09:23:04 +00:00
Andy Polyakov
ad00a52f2d Intel compiler support update from HEAD. 2012-11-28 13:12:09 +00:00
Andy Polyakov
8cebec9802 Switch to compact S-box when generating AES key schedule. 2006-08-01 22:10:39 +00:00
Andy Polyakov
dff2922aa7 Add option for "compact" rounds to aes_x86core.c. "Compact" rounds are
those referencing compact, 256-byte, S-boxes.
2006-07-14 09:57:55 +00:00
Andy Polyakov
86bdc0a3ee Fix compiler warnings. 2006-07-04 20:29:50 +00:00
Andy Polyakov
9c62bca11a Prepare playground for AES experimental code. 2006-07-02 09:18:00 +00:00