134 search results - page 8 / 27 » On the security of a convertible group signature scheme |
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...
ICCSA
2005
Springer
14 years 1 months ago
2005
Springer
In resent years, Popescu proposed several group signature schemes based on the Okamoto-Shiraishi assumption in [8–11], and claimed his schemes are secure. However, this paper dem...
ISPEC
2005
Springer
14 years 1 months ago
2005
Springer
A (t, n) threshold proxy signature scheme enables an original signer to delegate the signature authority to a proxy group of n member such that t or more than t proxy signers can ...
INDOCRYPT
2005
Springer
14 years 1 months ago
2005
Springer
We propose a scheme for electronic cash based on symmetric primitives. The scheme is secure in the framework for universal composability assuming the existence of a symmetric CCA2-...
ESORICS
2012
Springer
11 years 10 months ago
2012
Springer
We initiate the study of unique group signature such that signatures of the same message by the same user will always have a large common component (i.e., unique identifier). It ...