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CISC
2007
Springer
152views Cryptology» more  CISC 2007»
14 years 1 months ago
Orthogonality between Key Privacy and Data Privacy, Revisited
Abstract. Key privacy is a notion regarding the privacy of the owner of a public key, which has important applications in building (receiver) anonymous channels, or privacy-enhance...
Rui Zhang 0002, Goichiro Hanaoka, Hideki Imai
ASIACRYPT
2006
Springer
13 years 9 months ago
Forward-Secure and Searchable Broadcast Encryption with Short Ciphertexts and Private Keys
We introduce a primitive called Hierarchical Identity-Coupling Broadcast Encryption (HICBE) that can be used for constructing efficient collusion-resistant public-key broadcast enc...
Nuttapong Attrapadung, Jun Furukawa, Hideki Imai
ASIACRYPT
2004
Springer
14 years 1 months ago
Secret Handshakes from CA-Oblivious Encryption
Secret handshakes were recently introduced [BDS+ 03] to allow members of the same group to authenticate each other secretly, in the sense that someone who is not a group member ca...
Claude Castelluccia, Stanislaw Jarecki, Gene Tsudi...
PKC
2007
Springer
111views Cryptology» more  PKC 2007»
14 years 1 months ago
Optimistic Fair Exchange in a Multi-user Setting
: This paper addresses the security of optimistic fair exchange in a multi-user setting. While the security of public key encryption and public key signature schemes in a single-us...
Yevgeniy Dodis, Pil Joong Lee, Dae Hyun Yum
ACISP
2005
Springer
14 years 1 months 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