32 search results - page 3 / 7 » Improvement of threshold proxy signature scheme |
INFORMATICALT
2007
13 years 5 months ago
2007
Recently, Chen, Chung, and Huang proposed a traceable proxy multisignature scheme based on the elliptic curve cryptosystem. However, this paper shows that the original signers can ...
ACISP
2005
Springer
13 years 11 months ago
2005
Springer
A blind signature scheme is a protocol for obtaining a digital signature from a signer, but the signer can neither learn the messages he/she sign nor the signatures the recipients ...
ICICS
2001
Springer
13 years 10 months ago
2001
Springer
Undeniable signature has been extensively researched after Chaum and Antwerpen first proposed the concept of this special digital signature ten years ago. Up to now, however, almo...
NDSS
2003
IEEE
13 years 11 months ago
2003
IEEE
In this work we revisit and formally study the notion of proxy cryptography. Intuitively, various proxy functions allow two cooperating parties F (the “FBI”) and P (the “pro...
IJNSEC
2006
13 years 6 months ago
2006
To enhance applications of smart cards, Miyazaki and Takaragi proposed a (t, n) threshold digital signature scheme based on the security of elliptic curve discrete logarithm (ECDL...