Section: OpenSSL (3)
CRYPTO_memcmp - Constant time memory comparison
int CRYPTO_memcmp(const void *a, const void *b, size_t len);
The CRYPTO_memcmp function compares the len
bytes pointed to by a
It takes an amount of time dependent on len
, but independent of the
contents of the memory regions pointed to by a
returns 0 if the memory regions are equal and non-zero
(2), this function cannot be used to order the two memory regions
as the return value when they differ is undefined, other than being non-zero.
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