Side Channel Cryptanalysis of Product Ciphers

Published: Apr 04, 2000
Updated: Apr 04, 2000
Section: Network Security Library :: Cryptography
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Company: Counterpane Internet Security, Inc.
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Building on the work of Kocher, we introduce the notion of side-channel cryptanalysis: cryptanalysis using implementation data. We discuss the notion of side-channel attacks and the vulnerabilities they introduce, demonstrate side-channel attacks against three product ciphers---timing attack against IDEA, processor-flag attack against RC5, and Hamming weight attack against DES---and then generalize our research to other cryptosystems.

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