EVP_PKEY_CTX_set1_tls1_prf_secret
int EVP_PKEY_CTX_set1_tls1_prf_secret(EVP_PKEY_CTX *pctx,
EVP_PKEY_CTX_set1_tls1_prf_secret(pctx, master_secret, sizeof(master_secret));
if (EVP_PKEY_CTX_set1_tls1_prf_secret(pctx,