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 foreign organization for Cryptologic study, in cooperation with the IEEE desktop Society Technical Committee on protection and privateness and the pc technology division of the collage of California at Santa Barbara. it really is released as Vol. 2442 of the Lecture Notes in computing device technological know-how (LNCS) of Springer Verlag. observe that 2002, 22 and 2442 are all palindromes... (Don’t nod!) Theconferencereceived175submissions,ofwhich40wereaccepted;twos- missionsweremergedintoasinglepaper,yieldingthetotalof39papersaccepted for presentation within the technical software of the convention. during this court cases quantity you'll ?nd the revised types of the 39 papers that have been awarded on the convention. The submissions signify the present kingdom of labor within the cryptographic neighborhood world wide, masking all components of cryptologic study. actually, many top quality works (that absolutely may be released somewhere else) couldn't be authorized. this is often as a result of the aggressive nature of the convention and the not easy activity 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 authorised. The convention application was once additionally immensely bene?ted by means of plenary talks.

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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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Springer-Verlag, 1994. html. 5. John Black, Shai Halevi, Hugo Krawczyk, Ted Krovetz, and Phillip Rogaway. UMAC: Fast and secure message authentication.

This challenge consists of twoblocks messages M0 and M1 , such that M0 [2] = M1 [2]. Step 2 The black-box computes the encryption of either M0 and M1 , according to the value of a random bit b. It transmits (Cb [0], Cb [1], Cb [2]) to the attacker. The goal of the attacker is now to guess the value of b. Step 3 The attacker starts the encryption of a test message M . It first sends the first block M [1] chosen uniformly at random. Step 4 The attacker receives the beginning of the encryption of M , namely (C [0], C [1]).

The revised primitive operation, which we call a tweakable block cipher, has the signature: E : {0, 1}k × {0, 1}t × {0, 1}n → {0, 1}n . (2) For this operator, we call the new (second) input a “tweak” rather than a “nonce” or “initialization vector,” but the intent is similar. A tweakable block cipher thus takes three inputs – a key K ∈ {0, 1}k , a tweak T ∈ {0, 1}t , and a message (or plaintext) M ∈ {0, 1}n – and produces as output a ciphertext C ∈ {0, 1}n (see Figure 1(b)). M K E M M K T E T EK C C C (a) (b) (c) Fig.

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