Click Here to download this article
- Articles
- Authors
- Blogs
- Free Tools
- Links
- Message Boards
- Newsletter
- Security Tests
- Services
- Software
- White Papers
Cryptanalysis of Akelarre
|
| |
|
We show two practical attacks against the Akelarre block cipher. The best attack retrieves the 128-bit key using fewer than 100 chosen plaintexts and 242 off-line trial encryptions. Our attacks use a weakness in the round function that preserves the parity of the input, a set of 1-round differential characteristics with probability 1, and the lack of avalanche and one-way properties in the key schedule. We suggest some ways of fixing these immediate weaknesses, but conclude that the algorithm should be abandoned in favor of better-studied alternatives.
Featured Links*
Become a WindowSecurity.com member!
Discuss your security issues with thousands of other network security experts. Click here to join!