Java AES256encrypt in Objective-C

Question

need help with this code in Java. I need something equivalent in Objective-C. Any help?

thx

public static final String getAES256(final String text){
    try{
        SecretKeySpec specKey = new SecretKeySpec(Hex.decode(MERCHANT_KEY), "AES");
        Cipher aesCipher =  Cipher.getInstance("AES/ECB/ZeroBytePadding");
        aesCipher.init(Cipher.ENCRYPT_MODE, specKey);
        byte[] result = aesCipher.doFinal(Hex.decode(text));
        return convToHex(result);
    }catch(Exception e){
        e.printStackTrace();
    }
    return null;
}

Answer 1

Getting encryption code right is insanely difficult.

If you control both the server and client side, I would recommend that you make use of RNCryptor by @rob-napier.

You can find the code here: https://github.com/RNCryptor/RNCryptor In the read me is a link to a Java implementation: https://code.google.com/p/jncryptor/

If you can't change the server side stuff, then RNCryptor is a great example on how to do it right in Objective C