public function testSign() { $keyPair = KeyPair::generateKeyPair(2048); $secretKey = $keyPair->getPrivateKey(); $publicKey = $keyPair->getPublicKey(); $plain = 'This is a message.'; $signature = EasyRSA::sign($plain, $secretKey); $this->assertTrue(EasyRSA::verify($plain, $signature, $publicKey)); }