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ASIACRYPT
2006
Springer
13 years 12 months ago
2006
Springer
We introduce KFC, a block cipher based on a three round Feistel scheme. Each of the three round functions has an SPN-like structure for which we can either compute or bound the adv...
CRYPTO
2006
Springer
13 years 12 months ago
2006
Springer
We present an identity-based cryptosystem that features fully anonymous ciphertexts and hierarchical key delegation. We give a proof of security in the standard model, based on the...
ACISICIS
2005
IEEE
13 years 10 months ago
2005
IEEE
This paper introduces a strategy and its theory proof to transform non-linear concept graph: Directed Acyclic Concept Graph (DACG) into a linear concept tree. The transformation i...
ACISP
2008
Springer
13 years 10 months ago
2008
Springer
We consider one-round key exchange protocols secure in the standard model. The security analysis uses the powerful security model of Canetti and Krawczyk and a natural extension of...
CRYPTO
2008
Springer
13 years 10 months ago
2008
Springer
Prior approaches [15, 14] to building collusion-free protocols require exotic channels. By taking a conceptually new approach, we are able to use a more digitally-friendly communic...