Add test decryption for pg crypto columns

www/admin/class_test.db.encryption.php

@@ -15,6 +15,8 @@ ob_start();
 define('USE_DATABASE', true);
 // sample config
 require 'config.php';
+// for testing encryption compare
+use OpenPGP\OpenPGP;
 // define log file id
 $LOG_FILE_ID = 'classTest-db-query-encryption';
 ob_end_flush();
@@ -50,6 +52,7 @@ print "Secret Key: " . $key . "<br>";
 
 // test text
 $text_string = "I a some deep secret";
+$text_string = "I a some deep secret ABC";
 //
 $crypt = new SymmetricEncryption($key);
 $encrypted = $crypt->encrypt($text_string);
@@ -134,6 +137,28 @@ if ($res === false) {
 		print "libsodium and pgcrypto hash hmac match<br>";
 	}
 }
+$encryptedMessage_template = <<<TEXT
+-----BEGIN PGP MESSAGE-----
+
+{BASE64}
+-----END PGP MESSAGE-----
+TEXT;
+$base64_string = base64_encode(hex2bin($res['pg_crypt_text']));
+$encryptedMessage = str_replace(
+	'{BASE64}',
+	$base64_string,
+	$encryptedMessage_template
+);
+try {
+	$literalMessage = OpenPGP::decryptMessage($encryptedMessage, passwords: [$key]);
+	$decrypted = $literalMessage->getLiteralData()->getData();
+	print "Pg decrypted PHP: " . $decrypted . "<br>";
+	if ($decrypted == $text_string) {
+		print "Decryption worked<br>";
+	}
+} catch (\Exception $e) {
+	print "Error decrypting message: " . $e->getMessage() . "<br>";
+}
 
 
 // do compare for PHP and pgcrypto settings

www/composer.json

@@ -24,6 +24,7 @@
         "egrajp/smarty-extended": "^5.4",
         "php": ">=8.1",
         "gullevek/dotenv": "^2.0",
-        "psr/log": "^2.0 || ^3.0"
+        "psr/log": "^2.0 || ^3.0",
+        "php-privacy/openpgp": "^2.1"
     }
 }