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EUROPKI
2004
Springer
15 years 9 months ago
Using LDAP Directories for Management of PKI Processes
We present a framework for extending the functionality of LDAP servers from their typical use as a public directory in public key infrastructures. In this framework the LDAP server...
Vangelis Karatsiolis, Marcus Lippert, Alexander Wi...
CRYPTO
2009
Springer
144views Cryptology» more  CRYPTO 2009»
15 years 10 months ago
On the Composition of Public-Coin Zero-Knowledge Protocols
Abstract. We show that only languages in BPP have public-coin, blackbox zero-knowledge protocols that are secure under an unbounded (polynomial) number of parallel repetitions. Thi...
Rafael Pass, Wei-Lung Dustin Tseng, Douglas Wikstr...
WS
2003
ACM
15 years 9 months ago
An authentication framework for hierarchical ad hoc sensor networks
Recent results indicate scalability problems for flat ad hoc networks. To address the issue of scalability, self-organizing hierarchical ad hoc architectures are being investigat...
Mathias Bohge, Wade Trappe
ARESEC
2011
117views more  ARESEC 2011»
14 years 3 months ago
Non-Parallelizable and Non-Interactive Client Puzzles from Modular Square Roots
—Denial of Service (DoS) attacks aiming to exhaust the resources of a server by overwhelming it with bogus requests have become a serious threat. Especially protocols that rely o...
Yves Igor Jerschow, Martin Mauve
PKC
2012
Springer
235views Cryptology» more  PKC 2012»
13 years 6 months ago
Improved Security for Linearly Homomorphic Signatures: A Generic Framework
ded abstract of this work will appear in Public Key Cryptography — PKC 2012. This is the full version. We propose a general framework that converts (ordinary) signature schemes ...
David Mandell Freeman