Click Here to download this article
- Articles
- Authors
- Blogs
- Free Tools
- Links
- Message Boards
- Newsletter
- Security Tests
- Services
- Software
- White Papers
Mod n Cryptanalysis, with Applications against RC5P and M6
|
| |
|
We introduce "mod n cryptanalysis," a form of partitioning attack that is effective against ciphers which rely on modular addition and bit rotations for their security. We demonstrate this attack with a mod 3 attack against RC5P, an RC5 variant that uses addition instead of XOR. We also show mod 5 and mod 257 attacks against M6, a cipher proposed in the FireWire standard. We expect mod n cryptanalysis to be applicable to many other ciphers, and that the general attack is extensible to other values of n.
Featured Links*
Become a WindowSecurity.com member!
Discuss your security issues with thousands of other network security experts. Click here to join!