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location York, UK
age 26
visits member for 3 years, 2 months
seen Dec 5 '12 at 17:30

Mar
26
awarded  Teacher
Feb
27
comment What is the best way to put a backdoor in an encryption system?
I think that the best way for you to practice breaking cryptosystems is to follow Schneier's course. You could also design your own cryptosystem - which will almost certainly contain holes, just like every other system :) - without deliberately introducing vulnerabilities, and try to break that. Introducing a vulnerability then exploiting it to break the cryptosystem seems a bit pointless. You would already know what to look for...
Feb
13
answered How to attack a general polyalphabetic cipher?
Oct
21
awarded  Supporter
Oct
21
answered Is it feasible to build an index of prime factors?
Oct
21
awarded  Citizen Patrol