101 search results - page 1 / 21 » Efficient Intrusion-Resilient Signatures Without Random Orac... |
CISC
2006
Springer
14 years 2 months ago
2006
Springer
Intrusion-resilient signatures are key-evolving protocols that extend the concepts of forward-secure and key-insulated signatures. As in the latter schemes, time is divided into di...
EUROCRYPT
2006
Springer
14 years 2 months ago
2006
Springer
We present the first aggregate signature, the first multisignature, and the first verifiably encrypted signature provably secure without random oracles. Our constructions derive f...
EUROCRYPT
2006
Springer
14 years 2 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...
TCC
2007
Springer
14 years 5 months ago
2007
Springer
Abstract. We construct an intrusion-resilient symmetric-key authenticated key exchange (AKE) protocol in the bounded retrieval model. The model employs a long shared private key to...
IJSN
2006
13 years 11 months ago
2006
In this paper, we propose a new signature scheme that is existentially unforgeable under a chosen message attack without random oracle. The security of our scheme depends on a new ...