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ICUMT
2009
13 years 5 months ago
2009
Web services are ubiquitous technologies which are used for integrating business processes and services. As is the case in many other applications, the information processed in we...
ACRI
2010
Springer
13 years 4 months ago
2010
Springer
This paper investigates the behaviors and the properties of a "Give and Take" cellular automaton on a graph. Using an economical metaphor, this model implements the excha...
CRYPTO
2012
Springer
11 years 10 months ago
2012
Springer
We construct a functional encryption scheme secure against an a-priori bounded polynomial number of collusions for the class of all polynomial-size circuits. Our constructions req...
CORR
2010
Springer
13 years 8 months ago
2010
Springer
Due to implementation constraints the XOR operation is widely used in order to combine plaintext and key bit-strings in secretkey block ciphers. This choice directly induces the cl...
CRYPTO
2004
Springer
14 years 1 months ago
2004
Springer
We study cryptographic attacks on random Feistel schemes. We denote by m the number of plaintext/ciphertext pairs, and by k the number of rounds. In their famous paper [3], M. Luby...