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ACISP
2005
Springer
14 years 29 days ago
Group Signature Where Group Manager, Members and Open Authority Are Identity-Based
We present the first group signature scheme with provable security and signature size O(λ) bits where the group manager, the group members, and the Open Authority (OA) are all id...
Victor K. Wei, Tsz Hon Yuen, Fangguo Zhang
CCS
2004
ACM
14 years 24 days ago
Authenticity by tagging and typing
We propose a type and effect system for authentication protocols built upon a tagging scheme that formalizes the intended semantics of ciphertexts. The main result is that the val...
Michele Bugliesi, Riccardo Focardi, Matteo Maffei
IH
2001
Springer
13 years 12 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
IJNSEC
2008
164views more  IJNSEC 2008»
13 years 7 months ago
Secure Real-Time Streaming Protocol (RTSP) for Hierarchical Proxy Caching
Proxies are commonly used to cache objects, especially multimedia objects, so that clients can enjoy better quality-of-service (QoS) guarantees such as smaller startup latency and...
Yeung Siu Fung, John C. S. Lui, David K. Y. Yau
CRYPTO
2006
Springer
224views Cryptology» more  CRYPTO 2006»
13 years 11 months ago
Anonymous Hierarchical Identity-Based Encryption (Without Random Oracles)
We present an identity-based cryptosystem that features fully anonymous ciphertexts and hierarchical key delegation. We give a proof of security in the standard model, based on the...
Xavier Boyen, Brent Waters