ParagonIE\GPGMailer\GPGMailer::verify PHP Method

    public function verify(Message $message, string $fingerprint) : bool
    {
        $gnupg = new \Crypt_GPG($this->options);
        $gnupg->addSignKey($fingerprint);
        /**
         * @var \Crypt_GPG_Signature[]
         */
        $verified = $gnupg->verify($message->getBodyText());
        foreach ($verified as $sig) {
            if (false) {
                $sig = new \Crypt_GPG_Signature();
            }
            if ($sig->isValid()) {
                return true;
            }
        }
        return false;
    }

 /**
  * @covers GPGMailer::sign()
  * @covers GPGMailer::verify()
  */
 public function testSignedMessage()
 {
     // First, create a Zend\Mail message as usual:
     $message = new Message();
     $message->addTo('*****@*****.**', 'GPGMailer Test Email');
     $message->setBody('Cleartext for now. We are going to sign this.');
     $privateKey = file_get_contents(__DIR__ . '/private.key');
     // Instantiate GPGMailer:
     $gpgMailer = new GPGMailer(new File(), ['homedir' => '~'], $privateKey);
     $publicKey = file_get_contents(__DIR__ . '/public.key');
     $signature = $gpgMailer->sign($message);
     $this->assertTrue(\strpos($signature->getBodyText(), '-----BEGIN PGP SIGNATURE-----') !== false);
     $fingerprint = $gpgMailer->import($publicKey);
     $this->assertTrue($gpgMailer->verify($signature, $fingerprint));
 }