tls1_prf_P_hash
return tls1_prf_P_hash(md, secret, secret_len, seed, seed_len,
if (!tls1_prf_P_hash(EVP_md5(), secret, half_len, seed, seed_len,
if (!tls1_prf_P_hash(EVP_sha1(), secret, half_len, seed, seed_len,