179 search results - page 11 / 36 » On the Security of Some Proxy Blind Signature Schemes |
INFORMATICALT
2006
13 years 7 months ago
2006
One important requirement of electronic cash systems is the anonymity of customers. Unconditional anonymity is also very well suited to support criminals in blackmailing. Maitland ...
CISC
2007
Springer
13 years 11 months ago
2007
Springer
This paper proposes a new ID-based proxy signature scheme based on the bilinear pairings. The number of paring operation involved in the verification procedure of our scheme is onl...
IJNSEC
2006
13 years 7 months ago
2006
In 2004, Sekhar proposed a new signature scheme with message recovery. Based on this signature scheme with message recovery, they also proposed a designated verifier signature sch...
ETRICS
2006
13 years 11 months ago
2006
Anonymity services in the EU may be forced by the new EU data retention directive to collect connection data and deanonymise some of their users in case of serious crimes. For this...
ASIACRYPT
2006
Springer
13 years 11 months ago
2006
Springer
The group signature scheme [1], ACJT for short, is popular. In this paper we show that it is not secure. It does not satisfy exculpability. The group manager can sign on behalf of ...