985 search results - page 13 / 197 » On the validity of digital signatures |
CISIM
2007
IEEE
14 years 3 months ago
2007
IEEE
The standard digital signature scheme can be easily subject to key exposure problem In order to overcome this problem; a feasible and effective approach is employed by key-evolving...
CRYPTO
1997
Springer
14 years 28 days ago
1997
Springer
We present a new proposal for a trapdoor one-way function, from which we derive public-key encryption and digital signatures. The security of the new construction is based on the ...
SIBGRAPI
2000
IEEE
14 years 1 months ago
2000
IEEE
This work has as main objective to present an off-line signature verification system. It is basically divided into three parts. The first one demonstrates a pre-processing process,...
EGCDMAS
2004
13 years 10 months ago
2004
European, international and Internet standards are available to support electronic signatures. The most common signature formats are defined via the ASN.1 syntax with DER encoding,...
COMCOM
1999
13 years 8 months ago
1999
Undeniable signature is an intriguing concept introduced by Chaum and Antwerpen at Crypto'89. In 1999, Lee and Hwang presented two group-oriented undeniable signature schemes ...