Mercurial > dropbear
diff dbutil.c @ 835:4095b6d7c9fc ecc
Merge in changes from the past couple of releases
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Fri, 18 Oct 2013 21:38:01 +0800 |
| parents | 7dcb46da72d9 a625f9e135a4 |
| children | 30ab30e46452 |
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--- a/dbutil.c Sat May 25 00:54:19 2013 +0800 +++ b/dbutil.c Fri Oct 18 21:38:01 2013 +0800 @@ -892,3 +892,16 @@ return DROPBEAR_SUCCESS; } } + +int constant_time_memcmp(const void* a, const void *b, size_t n) +{ + const char *xa = a, *xb = b; + uint8_t c = 0; + size_t i; + for (i = 0; i < n; i++) + { + c |= (xa[i] ^ xb[i]); + } + return c; +} +