CRYPTO
13 years 10 months ago
2001 Springer 
We deal with the problem of a center sending a message to a group of users such that some subset of the users is considered revoked and should not be able to obtain the content of...
CRYPTO
13 years 10 months ago
2001 Springer 
Most public key cryptosystems have been constructed based on abelian groups up to now. We propose a new public key cryptosystem built on finite non abelian groups in this paper. I...
CRYPTO
13 years 10 months ago
2001 Springer
Recently Victor Shoup noted that there is a gap in the widely-believed security result of OAEP against adaptive chosen-ciphertext attacks. Moreover, he showed that, presumably, OA...
CRYPTO
13 years 10 months ago
2001 Springer 
d Abstract) Ran Canetti and Marc Fischlin Abstract. We propose a new security measure for commitment protocols, called Universally Composable (UC) Commitment. The measure guarantee...
CRYPTO
13 years 10 months ago
2001 Springer
Consider a network of processors among which elements in a finite field K can be verifiably shared in a constant number of rounds. Assume furthermore constant-round protocols ar...
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Cryptology