Mircryption

mircryption.php

<?php

function mircryption_decode($text, $key)
{
    $encodedTextIvBase64 = str_replace('*', '', $text);
    $encodedTextIv = base64_decode($encodedTextIvBase64);
    $iv = substr($encodedTextIv, 0, 8);
    $encodedText = substr($encodedTextIv, 8);
    $plaintext = mcrypt_decrypt(MCRYPT_BLOWFISH, $key, $encodedText, MCRYPT_MODE_CBC, $iv);
    return trim($plaintext);
}
 
function mircryption_encode($text, $key)
{
    $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_BLOWFISH, MCRYPT_MODE_CBC), MCRYPT_RAND);
    $encodedText = mcrypt_encrypt(MCRYPT_BLOWFISH, $key, $text, MCRYPT_MODE_CBC, $iv);
    $encodedTextIv = $iv . $encodedText;
    $decodedTextBaseIv64 = base64_encode($encodedTextIv);
    return '*' . $decodedTextBaseIv64;
}