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CRYPTO
2005
Springer
94views Cryptology» more  CRYPTO 2005»
14 years 7 days ago
Improved Security Analyses for CBC MACs
We present an improved bound on the advantage of any q-query adversary at distinguishing between the CBC MAC over a random n-bit permutation and a random function outputting n bit...
Mihir Bellare, Krzysztof Pietrzak, Phillip Rogaway
ASIACRYPT
2003
Springer
13 years 12 months ago
Sequential Key Derivation Patterns for Broadcast Encryption and Key Predistribution Schemes
Abstract. We study two closely related primitives: Broadcast Encryption and Key Predistribution Schemes (KPS). Broadcast Encryption allows a broadcaster to broadcast an encrypted m...
Nuttapong Attrapadung, Kazukuni Kobara, Hideki Ima...
ASIACRYPT
2001
Springer
13 years 11 months ago
Provable Security of KASUMI and 3GPP Encryption Mode f8
Within the security architecture of the 3GPP system there is a standardised encryption mode f8 based on the block cipher KASUMI. In this work we examine the pseudorandomness of the...
Ju-Sung Kang, Sang Uk Shin, Dowon Hong, Okyeon Yi
EUROCRYPT
2011
Springer
12 years 10 months ago
Unbounded HIBE and Attribute-Based Encryption
In this work, we present HIBE and ABE schemes which are “unbounded” in the sense that the public parameters do not impose additional limitations on the functionality of the sy...
Allison B. Lewko, Brent Waters
ACNS
2008
Springer
143views Cryptology» more  ACNS 2008»
14 years 1 months ago
On the Security of the CCM Encryption Mode and of a Slight Variant
In this paper, we present an analysis of the CCM mode of operations and of a slight variant. CCM is a simple and efficient encryption scheme which combines a CBC-MAC authentication...
Pierre-Alain Fouque, Gwenaëlle Martinet, Fr&e...