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Optimize OPENSSL_cleanse.

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This commit is contained in:
Andy Polyakov 2007-06-20 17:36:39 +00:00
parent 1c7f8707fd
commit c943ca5404
1 changed files with 6 additions and 5 deletions
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11
crypto/mem_clr.c
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@ -64,12 +64,13 @@ unsigned char cleanse_ctr = 0;
void OPENSSL_cleanse(void *ptr, size_t len)
{
unsigned char *p = ptr;
size_t loop = len;
size_t loop = len, ctr = cleanse_ctr;
while(loop--)
{
*(p++) = cleanse_ctr;
cleanse_ctr += (17 + (unsigned char)((unsigned long)p & 0xF));
*(p++) = (unsigned char)ctr;
ctr += (17 + ((size_t)p & 0xF));
}
if(memchr(ptr, cleanse_ctr, len))
cleanse_ctr += 63;
if(p=memchr(ptr, (unsigned char)ctr, len))
ctr += (63 + (size_t)p);
cleanse_ctr = (unsigned char)ctr;
}