From: Rodrigo Dominguez <rorra@...>
Date: 2006-09-23T06:01:16+09:00
Subject: cryptography (RSA)

I trying to do some cryptography between ruby and php, I don't get 
it!!!!

ruby code:
---------------------------------------------
#!/usr/bin/env ruby
require 'openssl'

text = "abcdefghijklmnopqrstuvwxyz"
key = "altakey"
alg = "AES-128-ECB"

puts %(clear text:    "#{text}")
puts %(symmetric key: "#{key}")
puts %(cipher alg:    "#{alg}")

puts "--Encrypting--"
des = OpenSSL::Cipher::Cipher.new(alg)
des.encrypt(key)
cipher =  des.update(text)
cipher << des.final
puts %(encrypted text: #{cipher.inspect})
puts
---------------------------------------------
This is the result:
"\214\t\303n\320Lz\330\271\252\017\355\036\251|\237\212V\270hq\267X\204\261\3327t\345\353\324\364"
---------------------------------------------
what is that? \214????\t\303n?


this is the php code:
-----------------------------------------------
<?php

$crypt = 
'\214\t\303n\320Lz\330\271\252\017\355\036\251|\237\212V\270hq\267X\204\261\3327t\345\353\324\364';
$key = "altakey";

echo "crypted content from ruby: " .$crypt . "\n";
$result = mcrypt_decrypt ( MCRYPT_RIJNDAEL_128 , $key, $crypt, 
MCRYPT_MODE_ECB);

echo "result: $result\n"
?>
-----------------------------------------------
this is the result:
                             ������dg[0l?��g��������C��(Ayy2��ze��t
          A��e:vb��Uu<��`
��%fi��`cz������
-----------------------------------------------
wtf????
-----------------------------------------------

by the way, this is a code to encrypt in php
-----------------------------------------------
<?php

$text = "abcdefghijklmnopqrstuvwxyz";
$key = "altakey";

echo "decrypted content: $text\n";
echo "key: $key\n";

$result = mcrypt_encrypt ( MCRYPT_RIJNDAEL_128 , $key, $text, 
MCRYPT_MODE_ECB);

echo "Encrypted text: " . bin2hex($result) . "\n";


?>
----------------------------------------------
this is the result:
1fce1c90530b80a27b1af29364ba45759870f1a2341c380dcc48845335d9e575
----------------------------------------------

how can I manage that hex data in ruby? any help on anything?


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