/* Create an ECDHE key pair for a given curve */
SECStatus
ssl_CreateECDHEphemeralKeyPair(const namedGroupDef *ecGroup,
sslEphemeralKeyPair **keyPair)
{
SECKEYPrivateKey *privKey = NULL;
SECKEYPublicKey *pubKey = NULL;
SECKEYECParams ecParams = { siBuffer, NULL, 0 };
sslEphemeralKeyPair *pair;
if (ssl_NamedGroup2ECParams(NULL, ecGroup, &ecParams) != SECSuccess) {
return SECFailure;
}
privKey = SECKEY_CreateECPrivateKey(&ecParams, &pubKey, NULL);
SECITEM_FreeItem(&ecParams, PR_FALSE);
if (!privKey || !pubKey ||
!(pair = ssl_NewEphemeralKeyPair(ecGroup, privKey, pubKey))) {
if (privKey) {
SECKEY_DestroyPrivateKey(privKey);
}
if (pubKey) {
SECKEY_DestroyPublicKey(pubKey);
}
ssl_MapLowLevelError(SEC_ERROR_KEYGEN_FAIL);
return SECFailure;
}
*keyPair = pair;
return SECSuccess;
}
/* Create an ECDHE key pair for a given curve */
SECStatus
ssl_CreateECDHEphemeralKeyPair(const sslSocket *ss,
const sslNamedGroupDef *ecGroup,
sslEphemeralKeyPair **keyPair)
{
SECKEYPrivateKey *privKey = NULL;
SECKEYPublicKey *pubKey = NULL;
SECKEYECParams ecParams = { siBuffer, NULL, 0 };
sslEphemeralKeyPair *pair;
if (ssl_NamedGroup2ECParams(NULL, ecGroup, &ecParams) != SECSuccess) {
return SECFailure;
}
privKey = SECKEY_CreateECPrivateKey(&ecParams, &pubKey, ss->pkcs11PinArg);
SECITEM_FreeItem(&ecParams, PR_FALSE);
if (!privKey || !pubKey ||
!(pair = ssl_NewEphemeralKeyPair(ecGroup, privKey, pubKey))) {
if (privKey) {
SECKEY_DestroyPrivateKey(privKey);
}
if (pubKey) {
SECKEY_DestroyPublicKey(pubKey);
}
ssl_MapLowLevelError(SEC_ERROR_KEYGEN_FAIL);
return SECFailure;
}
*keyPair = pair;
SSL_TRC(50, ("%d: SSL[%d]: Create ECDH ephemeral key %d",
SSL_GETPID(), ss ? ss->fd : NULL, ecGroup->name));
PRINT_BUF(50, (ss, "Public Key", pubKey->u.ec.publicValue.data,
pubKey->u.ec.publicValue.len));
#ifdef TRACE
if (ssl_trace >= 50) {
SECItem d = { siBuffer, NULL, 0 };
SECStatus rv = PK11_ReadRawAttribute(PK11_TypePrivKey, privKey,
CKA_VALUE, &d);
if (rv == SECSuccess) {
PRINT_BUF(50, (ss, "Private Key", d.data, d.len));
SECITEM_FreeItem(&d, PR_FALSE);
} else {
SSL_TRC(50, ("Error extracting private key"));
}
}
#endif
return SECSuccess;
}
