http://snipplr.com/users/weilawei/tags/arcfour Recent snippets posted on Snipplr.com en-us Wed, 19 Jun 2013 15:08:41 GMT http://snipplr.com/view/64835/arc4/ This is a pure Python implementation of ARC4 as a generator to highlight its nature as a stream cipher. Several improvements can be made, for instance, it could take a nonce, use multiple state spaces (parallelizable), automatically discard the first 4K of the state space(s), use a more complex transformation than a simple swap, limit the # of bytes encrypted per nonce, etc.. The size of the state space is a parameter. The size of the key must not exceed the size of the state space, as additional key data will not be mixed into the prepared state.

]]> Thu, 10 May 2012 22:03:28 GMT http://snipplr.com/view/64835/arc4/