179 search results - page 19 / 36 » On the Security of Some Proxy Blind Signature Schemes |
ACNS
2004
Springer
13 years 11 months ago
2004
Springer
Motivated by the conflict between authenticity and privacy in the digital signature, the notion of limited verifier signature was introduced [1]. The signature can be verified by a...
JOC
2011
12 years 10 months ago
2011
This paper is devoted to the design and analysis of short undeniable signatures based on a random oracle. Exploiting their online property, we can achieve signatures with a fully s...
PET
2010
Springer
13 years 11 months ago
2010
Springer
In this work, we propose a new platform to enable service providers, such as web site operators, on the Internet to block past abusive users of anonymizing networks (for example, T...
IACR
2011
12 years 7 months ago
2011
We put forward a generalization of lossy trapdoor functions (LTFs). Namely, all-but-many lossy trapdoor functions (ABM-LTFs) are LTFs that are parametrized with tags. Each tag can...
EUROPKI
2007
Springer
13 years 11 months ago
2007
Springer
Time Capsule Signature, first formalized by Dodis and Yum in Financial Cryptography 2005, is a digital signature scheme which allows a signature to bear a (future) time t so that t...