PHP how encode/decode text with key?
Decrypt:
//Encryption$result = mcrypt_ecb (MCRYPT_3DES, 'test', $string, MCRYPT_ENCRYPT);//Decryption$decrypt_result = mcrypt_ecb (MCRYPT_3DES, 'test', $result, MCRYPT_DECRYPT);You need to change mode in arguments and pass encrypted values.
NOTE: mcrypt_generic() has also been DEPRECATED as of PHP 7.1.0.
Read manual: http://www.php.net/manual/en/function.mcrypt-ecb.php.
Better to use mcrypt_generic().
$cc = 'my secret text';$key = 'my secret key';$iv = '12345678';$cipher = mcrypt_module_open(MCRYPT_BLOWFISH,'','cbc','');mcrypt_generic_init($cipher, $key, $iv);$encrypted = mcrypt_generic($cipher,$cc);mcrypt_generic_deinit($cipher);mcrypt_generic_init($cipher, $key, $iv);$decrypted = mdecrypt_generic($cipher,$encrypted);mcrypt_generic_deinit($cipher);echo "encrypted : ".$encrypted;echo "<br>";echo "decrypted : ".$decrypted;
See https://gist.github.com/joashp/a1ae9cb30fa533f4ad94
Simple PHP encrypt and decrypt using OpenSSL from Joashp who will work for food
/** * simple method to encrypt or decrypt a plain text string * initialization vector(IV) has to be the same when encrypting and decrypting * * @param string $action: can be 'encrypt' or 'decrypt' * @param string $string: string to encrypt or decrypt * * @return string */function encrypt_decrypt($action, $string) { $output = false; $encrypt_method = "AES-256-CBC"; $secret_key = 'This is my secret key'; $secret_iv = 'This is my secret iv'; // hash $key = hash('sha256', $secret_key); // iv - encrypt method AES-256-CBC expects 16 bytes - else you will get a warning $iv = substr(hash('sha256', $secret_iv), 0, 16); if ( $action == 'encrypt' ) { $output = openssl_encrypt($string, $encrypt_method, $key, 0, $iv); $output = base64_encode($output); } else if( $action == 'decrypt' ) { $output = openssl_decrypt(base64_decode($string), $encrypt_method, $key, 0, $iv); } return $output;}$plain_txt = "This is my plain text";echo "Plain Text =" .$plain_txt. "\n";$encrypted_txt = encrypt_decrypt('encrypt', $plain_txt);echo "Encrypted Text = " .$encrypted_txt. "\n";$decrypted_txt = encrypt_decrypt('decrypt', $encrypted_txt);echo "Decrypted Text =" .$decrypted_txt. "\n";if ( $plain_txt === $decrypted_txt ) echo "SUCCESS";else echo "FAILED";echo "\n";