21 search results - page 4 / 5 » Cryptanalysis of Some Group-Oriented Proxy Signature Schemes |
IJACT
2008
13 years 5 months ago
2008
: In Crypto 1997, Goldreich, Goldwasser and Halevi (GGH) proposed a lattice analogue of McEliece public key cryptosystem, in which security is related to the hardness of approximat...
CRYPTO
1998
Springer
13 years 9 months ago
1998
Springer
Verifiable Signature Sharing (VS ) enables the recipient of a digital signature, who is not necessarily the original signer, to share such signature among n proxies so that a subse...
ETRICS
2006
13 years 9 months ago
2006
Anonymity services in the EU may be forced by the new EU data retention directive to collect connection data and deanonymise some of their users in case of serious crimes. For this...
CRYPTO
1994
Springer
13 years 9 months ago
1994
Springer
Suppose we are given a proof of knowledge P in which a prover demonstrates that he knows a solution to a given problem instance. Suppose also that we have a secret sharing scheme S...
ASIACRYPT
2001
Springer
13 years 9 months ago
2001
Springer
A Zero-knowledge protocol provides provably secure entity authentication based on a hard computational problem. Among many schemes proposed since 1984, the most practical rely on f...