117 search results - page 15 / 24 » Short Group Signature Without Random Oracles |
ASIACRYPT
2006
Springer
13 years 11 months ago
2006
Springer
In this paper, we propose a new approach for constructing selectively convertible undeniable signature schemes, and present two efficient schemes based on RSA. Our approach allows ...
ASIACRYPT
2000
Springer
13 years 11 months ago
2000
Springer
Assuming a cryptographically strong cyclic group G of prime order q and a random hash function H, we show that ElGamal encryption with an added Schnorr signature is secure against ...
EUROCRYPT
2004
Springer
14 years 24 days ago
2004
Springer
We introduce the concept of concurrent signatures. These allow two entities to produce two signatures in such a way that, from the point of view of any third party, both signatures...
EUROCRYPT
2007
Springer
14 years 1 months ago
2007
Springer
sion of an extended abstract to be published in Advances in Cryptology—EUROCRYPT 2007, Springer-Verlag, 2007. Available online from the IACR Cryptology ePrint Archive as Report 2...
ICISC
2004
13 years 8 months ago
2004
In threshold ring signature schemes, any group of t entities spontaneously conscript arbitrarily n - t entities to generate a publicly verifiable t-out-of-n signature on behalf of ...