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CCS
2004
ACM
15 years 11 months ago
Mitigating bandwidth-exhaustion attacks using congestion puzzles
d Abstract) XiaoFeng Wang∗ Michael K. Reiter† We present congestion puzzles (CP), a new countermeasure to bandwidth-exhaustion attacks. Like other defenses based on client puz...
XiaoFeng Wang, Michael K. Reiter
CCS
2003
ACM
15 years 11 months ago
Receiver anonymity via incomparable public keys
We describe a new method for protecting the anonymity of message receivers in an untrusted network. Surprisingly, existing methods fail to provide the required level of anonymity ...
Brent R. Waters, Edward W. Felten, Amit Sahai
IH
2001
Springer
15 years 11 months ago
Zero-Knowledge Watermark Detection and Proof of Ownership
The goal of zero-knowledge watermark detection is to allow a prover to soundly convince a verifier of the presence of a watermark in certain stego-data without revealing any infor...
André Adelsbach, Ahmad-Reza Sadeghi
EUROPKI
2005
Springer
15 years 12 months ago
Development of a Flexible PERMIS Authorisation Module for Shibboleth and Apache Server
This paper describes the development of a flexible Role Based Access Control (RBAC) authorisation module – the Shibboleth and Apache Authorisation Module (SAAM) which is based on...
Wensheng Xu, David W. Chadwick, Sassa Otenko
NCA
2003
IEEE
15 years 11 months ago
Admission Control in Peer Groups
Security in collaborative peer groups is an active research topic. Most previous work focused on key management without addressing an important pre-requisite: admission control, i...
Yongdae Kim, Daniele Mazzocchi, Gene Tsudik