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by Captain Failure
Thu Nov 13, 2008 10:37 pm
Forum: Challenges Solved
Topic: Broken XOR 3
Replies: 7
Views: 656

The XOR 3 cipher has the nice weakness that you can quickly guess a valid pair of b and x based on the MSBs of the encrypted string. The longer the message, the more precise the guess will be. That'll crack XOR 3 in less than 1 second. For Broken XOR 3 I reused this code and extended the XOR 3 crack...