hacker07 Posted January 26, 2011 Share Posted January 26, 2011 Well this is kind of a stupid question. But what are your guys opinion on the RC4 Encryption algorithm? It was used in WEP but it was implemented very poorly. I want to look at this as a basic building block to study encryption algorithms so I can write my own some day. Any opinions? Quote Link to comment Share on other sites More sharing options...
Sparda Posted January 26, 2011 Share Posted January 26, 2011 I'm not sure encryption is an area where opinions matter, what does matter is if it's possible to revers the encryption process without the information it was thought necessary to revers the encryption (i.e. the key or keys). Quote Link to comment Share on other sites More sharing options...
digininja Posted January 26, 2011 Share Posted January 26, 2011 Not sure how to put this properly but WEP encryption is used as part of WPA-PSK just with better key rotation so it still has credence with the WPA developers. Quote Link to comment Share on other sites More sharing options...
Jason Cooper Posted January 26, 2011 Share Posted January 26, 2011 Definitely examine RC4 if you are wanting to learn about encryption as it is simple enough to get your head round. I wrote a tutorial about it a long time ago which might be useful to help understand how the algorithm works. Quote Link to comment Share on other sites More sharing options...
hacker07 Posted January 26, 2011 Author Share Posted January 26, 2011 Thanks for all the help. I will definitley keep examining the RC4 encryption algorithm Quote Link to comment Share on other sites More sharing options...
hacker07 Posted January 26, 2011 Author Share Posted January 26, 2011 So RC4 can be secure depending on how the keys are managed? Quote Link to comment Share on other sites More sharing options...
digininja Posted January 26, 2011 Share Posted January 26, 2011 As far as I know. Quote Link to comment Share on other sites More sharing options...
hacker07 Posted January 26, 2011 Author Share Posted January 26, 2011 What if you wrote a key scheduling algorithm that made RC4 Nearly unbreakable. How do you think it would effect cryptography? Quote Link to comment Share on other sites More sharing options...
digininja Posted January 26, 2011 Share Posted January 26, 2011 this is starting to sound like you are asking us your homework questions Quote Link to comment Share on other sites More sharing options...
hacker07 Posted January 26, 2011 Author Share Posted January 26, 2011 Only research lol! Just thought id ask from actual people before I start diving in deep! Just trying to find people with expirience Quote Link to comment Share on other sites More sharing options...
digininja Posted January 26, 2011 Share Posted January 26, 2011 I doubt that anything that one person who isn't already a massive name in the crypto industry could come up with would shake the crypto world. Quote Link to comment Share on other sites More sharing options...
hacker07 Posted January 26, 2011 Author Share Posted January 26, 2011 I doubt that anything that one person who isn't already a massive name in the crypto industry could come up with would shake the crypto world. I think its possible. The odds are extremely low but it's possible I would assume. Anyways you into cryptography? Quote Link to comment Share on other sites More sharing options...
Jason Cooper Posted January 26, 2011 Share Posted January 26, 2011 What if you wrote a key scheduling algorithm that made RC4 Nearly unbreakable. How do you think it would effect cryptography? These things aren't easy to create, but you do learn a lot from trying. Write a few and then try to break them when you find you can't break it stop and go read up on more about them and then try again. The chance of creating something secure without a lot of knowledge/ experience of the area are very slim, but the chance of learning things by trying is very high. Quote Link to comment Share on other sites More sharing options...
hacker07 Posted January 26, 2011 Author Share Posted January 26, 2011 These things aren't easy to create, but you do learn a lot from trying. Write a few and then try to break them when you find you can't break it stop and go read up on more about them and then try again. The chance of creating something secure without a lot of knowledge/ experience of the area are very slim, but the chance of learning things by trying is very high. Thanks for the feedback. I have been messing around with the RC4 Encryption algorithm. Maybe you can review my code sometime and if I can break it maybe you can. Quote Link to comment Share on other sites More sharing options...
digininja Posted January 26, 2011 Share Posted January 26, 2011 I think its possible. The odds are extremely low but it's possible I would assume. Anyways you into cryptography? as I said, I doubt it but it may happen. I'm not into crypto, did maths at first year degree level and crypto is interesting but not enough time to learn about it properly Quote Link to comment Share on other sites More sharing options...
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