In cryptography, decorrelation theory is a system developed by Serge Vaudenay in 1998 for designing block ciphers to be provably secure against differential cryptanalysis, linear cryptanalysis, and even undiscovered cryptanalytic attacks meeting certain broad criteria. Ciphers designed using these principles include COCONUT98 and the AES candidate DFC, both of which have been shown to be vulnerable to some forms of cryptanalysis not covered by the theory.
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| - Decorrelation theory (en)
- Teoria della decorrelazione (it)
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| - In crittografia la teoria della decorrelazione è un sistema sviluppato da per disegnare cifrari a blocchi che siano provatamente sicuri contro la crittanalisi differenziale, la crittanalisi lineare ed anche contro attacchi crittanalitici non ancora scoperti che rispondano a determinati criteri generali. I cifrari disegnati utilizzando questi principi includono il COCONUT98 ed il (DFC), un cifrario che è stato candidato per l'AES: entrambi sono risultati, però, vulnerabili ad alcune forme di crittanalisi non considerate dalla teoria di Vaudenay. (it)
- In cryptography, decorrelation theory is a system developed by Serge Vaudenay in 1998 for designing block ciphers to be provably secure against differential cryptanalysis, linear cryptanalysis, and even undiscovered cryptanalytic attacks meeting certain broad criteria. Ciphers designed using these principles include COCONUT98 and the AES candidate DFC, both of which have been shown to be vulnerable to some forms of cryptanalysis not covered by the theory. (en)
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| - In cryptography, decorrelation theory is a system developed by Serge Vaudenay in 1998 for designing block ciphers to be provably secure against differential cryptanalysis, linear cryptanalysis, and even undiscovered cryptanalytic attacks meeting certain broad criteria. Ciphers designed using these principles include COCONUT98 and the AES candidate DFC, both of which have been shown to be vulnerable to some forms of cryptanalysis not covered by the theory. According to Vaudenay, the decorrelation theory has four tasks: 1) the definition of a measurement for the decorrelation, which usually relies on a matrix norm; 2) the construction of simple primitive or "decorrelation module" with a quite good decorrelation; 3) the construction of cryptographic algorithms with decorrelation modules so that the primitive can be inherited by the algorithm; and, 4) proving that the decorrelation provides security against attacks. (en)
- In crittografia la teoria della decorrelazione è un sistema sviluppato da per disegnare cifrari a blocchi che siano provatamente sicuri contro la crittanalisi differenziale, la crittanalisi lineare ed anche contro attacchi crittanalitici non ancora scoperti che rispondano a determinati criteri generali. I cifrari disegnati utilizzando questi principi includono il COCONUT98 ed il (DFC), un cifrario che è stato candidato per l'AES: entrambi sono risultati, però, vulnerabili ad alcune forme di crittanalisi non considerate dalla teoria di Vaudenay. (it)
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