209 search results - page 27 / 42 » Secure Hash-and-Sign Signatures Without the Random Oracle |
CRYPTO
1989
Springer
14 years 2 months ago
1989
Springer
Abstract. In this paper, we provide a new approach to study undeniable signatures by translating secure digital signatures to secure undeniable signatures so that the existing algo...
IWSEC
2009
Springer
14 years 5 months ago
2009
Springer
Abstract—Password-authenticated key exchange (PAKE) protocols are designed to be secure even when the secret key used for authentication is a human-memorable password. In this pa...
CRYPTO
2008
Springer
14 years 19 days ago
2008
Springer
Despite considerable research efforts, no efficient reduction from the discrete log problem to forging a discrete log based signature (e.g. Schnorr) is currently known. In fact, ne...
ICALP
2005
Springer
14 years 4 months ago
2005
Springer
We introduce the notion of hierarchical group signatures. This is a proper generalization of group signatures, which allows multiple group managers organized in a tree with the si...
ICALP
2005
Springer
14 years 4 months ago
2005
Springer
Abstract An encryption scheme is non-malleable if the adversary cannot transform a ciphertext into one of a related message under the given public key. Although providing a very st...