10th
April
2008
Java Cryptography Compatibility
One relatively standard way to identify someone is to generate a small token which you can give to them, and which they can later give back to you. This is a classic “user cookie” scenario. The ID could be any data which is unique, but it should also be hard fake - you shouldn’t be able to guess one from scratch, nor to change an existing ID slightly to get someone else’s ID. One standard way to do this is to encrypt a sequential user ID. While almost all languages offer some form of encryption, it can be tricky to get encryption working between platforms. To find ou
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