core_hash_SHA2
return core_hash_SHA2(out, 1, key, n, buf, 2*n, n);
return core_hash_SHA2(out, 0, key, n, buf, n, n);
int core_hash_SHA2(unsigned char *, const unsigned int, const unsigned char *,
return core_hash_SHA2(out, 3, key, keylen, in, 32, keylen);
return core_hash_SHA2(out, 2, key, keylen, in, inlen, n);