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fix private key export without cipher crash #27041

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fix private key export without cipher crash #27041

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b2064cb
crypto: fix crash of encrypted private key export without cipher
panva Apr 1, 2019
75f9b08
fixup! crypto: fix crash of encrypted private key export without cipher
panva Apr 2, 2019
ff04443
fixup! crypto: fix crash of encrypted private key export without cipher
panva Apr 2, 2019
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20 changes: 13 additions & 7 deletions lib/internal/crypto/keys.js
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Original file line number Diff line number Diff line change
Expand Up @@ -186,14 +186,20 @@ function parseKeyEncoding(enc, keyType, isPublic, objName) {
if (isPublic !== true) {
({ cipher, passphrase } = enc);

if (!isInput && cipher != null) {
if (typeof cipher !== 'string')
if (!isInput) {
if (cipher != null) {
if (typeof cipher !== 'string')
throw new ERR_INVALID_OPT_VALUE(option('cipher', objName), cipher);
if (format === kKeyFormatDER &&
(type === kKeyEncodingPKCS1 ||
type === kKeyEncodingSEC1)) {
throw new ERR_CRYPTO_INCOMPATIBLE_KEY_OPTIONS(
encodingNames[type], 'does not support encryption');
}
}

if (passphrase !== undefined && typeof cipher !== 'string') {
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throw new ERR_INVALID_OPT_VALUE(option('cipher', objName), cipher);
if (format === kKeyFormatDER &&
(type === kKeyEncodingPKCS1 ||
type === kKeyEncodingSEC1)) {
throw new ERR_CRYPTO_INCOMPATIBLE_KEY_OPTIONS(
encodingNames[type], 'does not support encryption');
}
}

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14 changes: 14 additions & 0 deletions test/parallel/test-crypto-key-objects.js
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Original file line number Diff line number Diff line change
Expand Up @@ -244,3 +244,17 @@ const privateDsa = fixtures.readKey('dsa_private_encrypted_1025.pem',
assert.strictEqual(privateKey.asymmetricKeyType, 'dsa');
assert.strictEqual(privateKey.symmetricKeySize, undefined);
}

{
// Exporting an encrypted private key requires a cipher
const privateKey = createPrivateKey(privatePem);
common.expectsError(() => {
privateKey.export({
format: 'pem', type: 'pkcs8', passphrase: 'super-secret'
});
}, {
type: TypeError,
code: 'ERR_INVALID_OPT_VALUE',
message: 'The value "undefined" is invalid for option "cipher"'
});
}