in crypto/s2n_hash.c [120:136]
bool s2n_hash_is_available(s2n_hash_algorithm alg)
{
switch (alg) {
case S2N_HASH_MD5:
case S2N_HASH_MD5_SHA1:
case S2N_HASH_NONE:
case S2N_HASH_SHA1:
case S2N_HASH_SHA224:
case S2N_HASH_SHA256:
case S2N_HASH_SHA384:
case S2N_HASH_SHA512:
return true;
case S2N_HASH_ALGS_COUNT:
return false;
}
return false;
}