Sciweavers

157 search results - page 20 / 32
» Anonymous Signatures Revisited
Sort
View
ISW
2005
Springer
14 years 1 months ago
Tracing-by-Linking Group Signatures
In a group signature [19], any group member can sign on behalf of the group while remaining anonymous, but its identity can be traced in an future dispute investigation. Essentiall...
Victor K. Wei
CTRSA
2007
Springer
111views Cryptology» more  CTRSA 2007»
14 years 1 months ago
A Practical and Tightly Secure Signature Scheme Without Hash Function
In 1999, two signature schemes based on the flexible RSA problem (a.k.a. strong RSA problem) were independently introduced: the Gennaro-Halevi-Rabin (GHR) signature scheme and the...
Benoît Chevallier-Mames, Marc Joye
IEEEIAS
2009
IEEE
13 years 5 months ago
On Security Notions for Verifiably Encrypted Signature
First we revisit three - BGLS, MBGLS and GZZ verifiably encrypted signature schemes [2, 3, 6]. We find that they are all not strong unforgeable.We remark that the notion of existen...
Xu An Wang, Xiaoyuan Yang, Qingquan Peng
ETRICS
2006
13 years 11 months ago
Revocable Anonymity
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...
Stefan Köpsell, Rolf Wendolsky, Hannes Federr...
NDSS
2003
IEEE
14 years 1 months ago
Proxy Cryptography Revisited
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...
Anca-Andreea Ivan, Yevgeniy Dodis