Download Advances in Cryptology — CRYPTO 2002: 22nd Annual by Sean Murphy, Matthew J.B. Robshaw (auth.), Moti Yung (eds.) PDF

By Sean Murphy, Matthew J.B. Robshaw (auth.), Moti Yung (eds.)

Crypto 2002, the twenty second Annual Crypto convention, used to be backed via IACR, the overseas organization for Cryptologic learn, in cooperation with the IEEE desktop Society Technical Committee on defense and privateness and the pc technological know-how division of the college of California at Santa Barbara. it's released as Vol. 2442 of the Lecture Notes in machine technology (LNCS) of Springer Verlag. word that 2002, 22 and 2442 are all palindromes... (Don’t nod!) Theconferencereceived175submissions,ofwhich40wereaccepted;twos- missionsweremergedintoasinglepaper,yieldingthetotalof39papersaccepted for presentation within the technical application of the convention. during this complaints quantity you are going to ?nd the revised types of the 39 papers that have been provided on the convention. The submissions symbolize the present nation of labor within the cryptographic group around the globe, masking all parts of cryptologic examine. in reality, many fine quality works (that without doubt can be released somewhere else) couldn't be accredited. this is often end result of the aggressive nature of the convention and the hard job of choosing a application. I desire to thank the authors of all submitted papers. certainly, it's the authors of all papers who've made this convention attainable, whether or now not their papers have been authorized. The convention software used to be additionally immensely bene?ted via plenary talks.

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Read or Download Advances in Cryptology — CRYPTO 2002: 22nd Annual International Cryptology Conference Santa Barbara, California, USA, August 18–22, 2002 Proceedings PDF

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Additional resources for Advances in Cryptology — CRYPTO 2002: 22nd Annual International Cryptology Conference Santa Barbara, California, USA, August 18–22, 2002 Proceedings

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Step 3 The attacker now queries the encryption box for one message of two blocks. It first receives C [0] and sends M [1] = C [0] ⊕ M0 [1] ⊕ Cb [0]. Step 4 After receiving C [1] the attacker outputs M [2] = M0 [2]. Then it receives C [2] and ends the query. The encryption box finally outputs C [3]. Step 5 if the equality Cb [1] ⊕ Cb [2] = C [1] ⊕ C [2] holds, the attacker guesses the bit b = 0, else he guesses b = 1. We claim that the attacker always guesses correctly the bit b. Indeed, suppose that message M0 has been encrypted, meaning that b = 0.

C[n], T2 ) as follows: T1 = Epk (w, u) k1 = H1 (w, T1 ) C[1] = Ek1 (M [1]) ki = Hi (ki−1 , M [i − 1], w) C[i] = Eki (M [i]) T2 = F (kn , M [n], w) This is summarized in figure 1. 2 Attack on GEM–1 The security of GEM–1 is proved in [5] in the random oracle model, assuming that Epk is “reasonably” secure, even when EK is quite weak (a simple XOR 22 Antoine Joux, Gwena¨elle Martinet, and Fr´ed´eric Valette w ❄ u ✲ E ❄ T1 ❄ H1 k✲ 1 ✻ M [1] M [n] ❄ ❄ E ❄❄❄ H2 k✲ 2 ❄ C[1] ❄❄❄ Hn k✲ n E ❄ C[n] ❄❄❄ F ❄ T2 Fig.

Gov/encryption/aes/, 2000. 24. R. Wernsdorf. The round functions of Rijndael generate the alternating group. In V. Rijmen, editor, Proceedings of Fast Software Encryption, LNCS, Springer– Verlag, to appear. fr Abstract. In this paper, we show that the natural and most common way of implementing modes of operation for cryptographic primitives often leads to insecure implementations. We illustrate this problem by attacking several modes of operation that were proved to be semantically secure against either chosen plaintext or chosen ciphertext attacks.

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