Encryption Java without Library

> Hi, I have been asked to create a RSA or El Gamal

> encryption.. for encrypting and decrypting text. But

> without using the Crypto or Encryption and Security

> Libraries...

This is either Homework or the company you work for has more money than sense.

>

> So is that hard? or possible?

RSA is not difficult but there is more to it than just implementing RSA. You will need to deal with padding and you will need to deal with text that is longer than the RSA modulus. It is normal that RSA is used only to encrypt the session key in a symmetric algorithm such as AES and not to encrypt the whole message.

sabre150a at 2007-7-9 22:25:11 >