| public verifySignature ( string $plaintext, string $signature, string $fingerprint ) : boolean | ||
| $plaintext | string | The plaintext to sign |
| $signature | string | The signature that should be verified |
| $fingerprint | string | The fingerprint to identify the public key (RSA public key fingerprint) |
| return | boolean | TRUE if the signature is correct for the given plaintext and public key |
public function verifySignature($plaintext, $signature, $fingerprint)
{
if ($fingerprint === null || !isset($this->keys[$fingerprint])) {
throw new InvalidKeyPairIdException('Invalid keypair fingerprint given', 1304959763);
}
$verifyResult = openssl_verify($plaintext, $signature, $this->getPublicKey($fingerprint)->getKeyString());
return $verifyResult === 1;
} /**
* @test
*/
public function signAndVerifySignatureBasicallyWorks()
{
$plaintext = 'trustworthy data!';
$signature = $this->rsaWalletService->sign($plaintext, $this->keyPairUuid);
$this->assertTrue($this->rsaWalletService->verifySignature($plaintext, $signature, $this->keyPairUuid));
$this->assertFalse($this->rsaWalletService->verifySignature('modified data!', $signature, $this->keyPairUuid));
}
