57 search results - page 4 / 12 » Fine-grained forward-secure signature schemes without random... |
INDOCRYPT
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. We introduce a new undeniable signature scheme which is existentially unforgeable and anonymous under chosen message attacks in the standard model. The scheme is an embed...
EUROCRYPT
2006
Springer
13 years 11 months ago
2006
Springer
We present the first efficient group signature scheme that is provably secure without random oracles. We achieve this result by combining provably secure hierarchical signatures i...
PQCRYPTO
2010
13 years 11 months ago
2010
Abstract. We propose a variant of the “bonsai tree” signature scheme, a latticebased existentially unforgeable signature scheme in the standard model. Our construction offers ...
IJNSEC
2008
13 years 7 months ago
2008
In this paper, we suggest solutions to the key exposure problem in ring signature. In particular, we propose the first forward secure ring signature scheme and the first key-insul...
ICALP
2007
Springer
14 years 1 months ago
2007
Springer
Ring signatures, introduced by Rivest, Shamir and Tauman, enable a user to sign a message anonymously on behalf of a “ring”. A ring is a group of users, which includes the sign...