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EC: decipher private key to generate signature

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This commit is contained in:
Filippo Tessarotto 2022-02-04 10:15:39 +01:00
parent 56973d40db
commit e884929175
No known key found for this signature in database
GPG Key ID: E3CF0CB782A7D5AB
2 changed files with 14 additions and 1 deletions
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2
phpseclib/Crypt/EC/PrivateKey.php
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@ -106,7 +106,7 @@ class PrivateKey extends EC implements Common\PrivateKey
if ($this->curve instanceof TwistedEdwardsCurve) { if ($this->curve instanceof TwistedEdwardsCurve) {
if ($this->curve instanceof Ed25519 && self::$engines['libsodium'] && !isset($this->context)) { if ($this->curve instanceof Ed25519 && self::$engines['libsodium'] && !isset($this->context)) {
$result = sodium_crypto_sign_detached($message, $this->toString('libsodium')); $result = sodium_crypto_sign_detached($message, $this->withPassword(false)->toString('libsodium'));
return $shortFormat == 'SSH2' ? Strings::packSSH2('ss', 'ssh-' . strtolower($this->getCurve()), $result) : $result; return $shortFormat == 'SSH2' ? Strings::packSSH2('ss', 'ssh-' . strtolower($this->getCurve()), $result) : $result;
} }

13
tests/Unit/Crypt/EC/CurveTest.php
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@ -190,6 +190,19 @@ class Unit_Crypt_EC_CurveTest extends PhpseclibTestCase
$this->assertTrue($publickey->verify($plaintext, $sig)); $this->assertTrue($publickey->verify($plaintext, $sig));
} }
public function testCanSignWithAnEncryptedPrivateKey()
{
EC::useBestEngine();
$plaintext = 'zzz';
$privatekey = EC::createKey('Ed25519')->withPassword('foo');
$publickey = $privatekey->getPublicKey();
$sig = $privatekey->sign($plaintext);
$this->assertTrue($publickey->verify($plaintext, $sig));
}
/** /**
* Sign with best engine, verify with internal engine * Sign with best engine, verify with internal engine
* *