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ICPADS
2005
IEEE
13 years 11 months ago
Separable and Anonymous Identity-Based Key Issuing
Abstract. In identity-based (ID-based) cryptosystems, a local registration authority (LRA) is responsible for authentication of users while the key generation center (KGC) is respo...
Ai Fen Sui, Sherman S. M. Chow, Lucas Chi Kwong Hu...
ACISP
2010
Springer
13 years 7 months ago
Attribute-Based Authenticated Key Exchange
We introduce the concept of attribute-based authenticated key exchange (AB-AKE) within the framework of ciphertext policy attribute-based systems. A notion of AKE-security for AB-A...
M. Choudary Gorantla, Colin Boyd, Juan Manuel Gonz...
SCN
2010
Springer
147views Communications» more  SCN 2010»
13 years 4 months ago
Group Message Authentication
Group signatures is a powerful primitive with many practical applications, allowing a group of parties to share a signature functionality, while protecting the anonymity of the si...
Bartosz Przydatek, Douglas Wikström
CRYPTO
2006
Springer
224views Cryptology» more  CRYPTO 2006»
13 years 10 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
WETICE
1998
IEEE
13 years 10 months ago
WebGroup: A Secure Group Access Control Tool for the World-Wide Web
We present an integrated secure group access control tool to support workgroups on the World-Wide Web. The system enables user authentication, encrypted communication and fine-gra...
Fabien A. P. Petitcolas, Kan Zhang