Key-Schedule Cryptanalysis of 3-WAY, IDEA, G-DES, RC4, SAFER, and Triple-DES


Published: Apr 04, 2000 Updated: Apr 04, 2000 Section: Network Security Library :: Cryptography Author: Company: Counterpane Internet Security, Inc. Printable Version Adjust font size: Rating: 2.8/5 - 4 Votes 1 2 3 4 5

We present new attacks on key schedules of block ciphers. These attacks are based on the principles of related-key differential cryptanalysis: attacks that allow both keys and plaintexts to be chosen with specific differences. We show how these attacks can be exploited in actual protocols and cryptanalyze the key schedules of a variety of algorithms, including three-key triple-DES.

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