QuasarApp/openssl
4
0
Fork 0
mirror of https://github.com/QuasarApp/openssl.git synced 2025-05-05 14:09:41 +00:00
Code Issues Projects Releases Wiki Activity

modes/ctr128.c: fix false carry in counter increment procedure.

Browse Source 
GH issue #1916 affects only big-endian platforms. TLS is not affected,
because TLS fragment is never big enough.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 76f572ed0469a277d92378848250b7a9705d3071)
This commit is contained in:
Andy Polyakov 2016-11-20 23:38:12 +01:00
parent ca88f01d6c
commit edfca4e3da
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
crypto/modes/ctr128.c
View File

@ -100,7 +100,7 @@ static void ctr128_inc_aligned(unsigned char *counter)
--n; --n;
d = data[n] += c; d = data[n] += c;
/* did addition carry? */ /* did addition carry? */
c = ((d - c) ^ d) >> (sizeof(size_t) * 8 - 1); c = ((d - c) & ~d) >> (sizeof(size_t) * 8 - 1);
} while (n); } while (n);
} }
#endif #endif