Hi Nickolai,
> Using memcpy on overlapping regions of memory is undefined behavior in C.
> In engines/ccgost/gosthash.c, the circle_xor8() function uses memcpy to
When use clang/llvm-gcc this really bug, hash results wrongs.
See commits resolved it for "[openssl.org #2858] bug in gosthash.c
circle_xor8() routine".
And tests: "[openssl.org #2918] [PATCH] Testcase for GOST R 34.11-94
(openssl/engines/ccgost/gosthash.c)".
Workarounds:
- Don't use llvm (clang or llvm-gcc);
- Or decrease optimization level to "-O1";
--
Sorry for my bests English.
Serguei E. Leontiev w:+7(495)939-2382 USSR,Moscow,Universitetskij 13
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