204 search results - page 3 / 41 » On Provably Secure Time-Stamping Schemes |
ASIACRYPT
2000
Springer
14 years 4 days ago
2000
Springer
Abstract. Naor and Pinkas introduced metering schemes at Eurocrypt ’98 in order to decide on advertisement fees for web servers. In the schemes, any server should be able to cons...
SACRYPT
2005
Springer
14 years 1 months ago
2005
Springer
In a hierarchical structure, an entity has access to another if and only if the former is a superior of the later. The access control scheme for a hierarchy represented by a partia...
CRYPTO
2000
Springer
14 years 4 days ago
2000
Springer
A group signature scheme allows a group member to sign messages anonymously on behalf of the group. However, in the case of a dispute, the identity of a signature’s originator ca...
ASIACRYPT
2004
Springer
13 years 11 months ago
2004
Springer
Group signature schemes are cryptographic systems that provide revocable anonymity for signers. We propose a group signature scheme with constant-size public key and signature leng...
INDOCRYPT
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. We present a new elliptic curve cryptosystem with fast encryption and key generation, which is provably secure in the standard model. The scheme uses arithmetic modulo n2...