94 search results - page 5 / 19 » Proxy Re-signature Schemes Without Random Oracles |
ASIACRYPT
2010
Springer
13 years 5 months ago
2010
Springer
This paper investigates the Random Oracle Model (ROM) feature known as programmability, which allows security reductions in the ROM to dynamically choose the range points of an ide...
EUROCRYPT
2012
Springer
11 years 10 months ago
2012
Springer
We provide an alternative method for constructing lattice-based digital signatures which does not use the “hash-and-sign” methodology of Gentry, Peikert, and Vaikuntanathan (ST...
ISPA
2005
Springer
14 years 29 days ago
2005
Springer
Identity-based (ID-based) public key cryptosystem can be a good alternative for certificate-based public key setting, especially when efficient key management and moderate securit...
IJSN
2006
13 years 7 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 ...
DAM
2006
13 years 7 months ago
2006
We propose the concept of fine-grained forward-secure signature schemes. Such signature schemes not only provide non-repudiation w.r.t. past time periods the way ordinary forward-...