Privacy on the Line: The Politics of Wiretapping and by Susan Landau, Whitfield Diffie

By Susan Landau, Whitfield Diffie

A penetrating and insightful learn of privateness and protection in telecommunications for a post-9/11, post-Patriot Act international.

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Goubin and J. Patarin. DES and Differential Power Analysis: the Duplication Method. In C ¸ . K. Ko¸c and C. Paar, editors, Cryptographic Hardware and Embedded Systems — CHES 1999, volume LNCS 1717, pages 158–172. Springer-Verlag, 1999. P. Kocher, J. Jaffe, and B. Jun. Differential Power Analysis: Leaking Secrets. In Advances in Cryptology — CRYPTO ’99, volume LNCS 1666, pages 388–397. Springer-Verlag, 1999. P. Kocher. Timing Attacks on Implementations of Diffie-Hellmann, RSA, DSS, and Other Systems.

By measuring the EM emanation and the power consumption in parallel ([1]). 2 The Mathematical Model In this section we introduce a new mathematical model for differential side channel attacks against block ciphers. We investigate this model (Subsect. 1)and 32 W. Schindler, K. Lemke, and C. Paar exploit these insights to derive optimal decision strategies (Subsects. 3). The success probability (or equivalently, the risk potential) and the efficiency of our approach are considered. , the designer) measures physical observables at time t in order to guess a subkey k ∈ {0, 1}s .

The success probability (or equivalently, the risk potential) and the efficiency of our approach are considered. , the designer) measures physical observables at time t in order to guess a subkey k ∈ {0, 1}s . The letter x ∈ {0, 1}p denotes a known part of the plaintext or the ciphertext, respectively. We view a measurement at time t as a realization of the random variable It (x, k) = ht (x, k) + Rt . (1) The first summand ht (x, k) quantifies the deterministic part of the measurement as far it depends on x and k.

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