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require 'openssl'

require 'base64'

def encipher(data_to_encode)

cipher = OpenSSL::Cipher::Cipher.new("des-ede3-cbc")

key = "secretkey"

cipher.encrypt(key)

encoded_data = cipher.update(data_to_encode)

encoded_data cipher.final

return Base64.encode64(encoded_data)

end

def decipher(encoded)

encoded = Base64.decode64(encoded)



cipher = OpenSSL::Cipher::Cipher.new("des-ede3-cbc")

key = "secretkey"

cipher.decrypt(key)

encoded_data = cipher.update(encoded)

encoded_data cipher.final

return encoded_data

end

 

function getkeyiv($key_size, $iv_size, $key, $iv='') {

if ($iv == '') {

$iv = 'OpenSSL for Ruby rulez!';

}

$iv = substr($iv,0,$iv_size);



$gen = '';

do {

$gen = $gen.md5($gen.$key.$iv,true);

} while (strlen($gen)($iv_size+$key_size));

$o[0] = substr($gen,0,$key_size);

$o[1] = $iv; //this is not the generated IV,

//just the original "salt" cut to the required size

return $o;

}

function trimpadding($str) {

if (ord($str[strlen($str)-1]) 9) {

return rtrim($str,$str[strlen($str)-1]);

} else {

return $str;

}

}

function encipher($data_to_encode){

$key = 'secretkey';



$td = mcrypt_module_open(MCRYPT_TRIPLEDES, '', MCRYPT_MODE_CBC, '');

$iv_size = mcrypt_enc_get_iv_size($td);

$key_size = mcrypt_enc_get_key_size($td);

$genkey = getkeyiv($key_size, $iv_size,$key);

if (mcrypt_generic_init($td,$genkey[0],$genkey[1]) != -1) {

$encoded_data = mcrypt_generic($td, $data_to_encode);

}

mcrypt_generic_deinit($td);

mcrypt_module_close($td);

return base64_encode($encoded_data);

}

function decipher($encoded) {

$key = 'secretkey';

$decrypted='';

$enc = base64_decode($encoded);

$td = mcrypt_module_open(MCRYPT_TRIPLEDES, '', MCRYPT_MODE_CBC, '');

$iv_size = mcrypt_enc_get_iv_size($td);

$key_size = mcrypt_enc_get_key_size($td);

$genkey = getkeyiv($key_size, $iv_size,$key);

if (mcrypt_generic_init($td,$genkey[0],$genkey[1]) != -1) {

$decrypted = mdecrypt_generic($td, $enc);

}

mcrypt_generic_deinit($td);

mcrypt_module_close($td);

return trimpadding($decrypted);

}

?>