What a robust and easy way to encrypt a string with key without using Open SSL?

Posted by Axel on Stack Overflow See other posts from Stack Overflow or by Axel
Published on 2010-04-18T20:47:20Z Indexed on 2010/04/18 20:53 UTC
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I don't want to use Open SSL or any very big none-built-in libraries for this. I only want to be able to encrypt a string with a key so you can't decrypt it without it.

By the way, i already did a long search on stackoverflow and i've checked out those unsecure ways but i want something robust like md5 (which can be decrypted with a key).

Thanks

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