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COMCOM
1999
91views more  COMCOM 1999»
13 years 4 months ago
Group-oriented undeniable signature schemes with a trusted center
Undeniable signature is an intriguing concept introduced by Chaum and Antwerpen at Crypto'89. In 1999, Lee and Hwang presented two group-oriented undeniable signature schemes ...
Narn-Yih Lee, Tzonelih Hwang
EUROPKI
2007
Springer
13 years 11 months ago
Undeniable Mobile Billing Schemes
An undeniable mobile billing system allows a mobile network service provider to bill its subscribers with trustworthy evidences. Chen, Jan and Chen proposed such a billing system b...
Shiqun Li, Guilin Wang, Jianying Zhou, Kefei Chen
ACNS
2003
Springer
131views Cryptology» more  ACNS 2003»
13 years 10 months ago
On the Security of Two Threshold Signature Schemes with Traceable Signers
A (t, n) threshold signature scheme allows t or more group members to generate signatures on behalf of a group with n members, while any t−1 or less members cannot do the same th...
Guilin Wang, Xiaoxi Han, Bo Zhu
INDOCRYPT
2004
Springer
13 years 10 months ago
New ID-Based Threshold Signature Scheme from Bilinear Pairings
ID-based public key systems allow the user to use his/her identity as the public key, which can simplify key management procedure compared with CA-based public key systems. However...
Xiaofeng Chen, Fangguo Zhang, Divyan M. Konidala, ...
CHES
2009
Springer
140views Cryptology» more  CHES 2009»
14 years 5 months ago
On Tamper-Resistance from a Theoretical Viewpoint
Tamper-proof devices are pretty powerful. They can be used to have better security in applications. In this work we observe that they can also be maliciously used in order to defea...
Paulo Mateus, Serge Vaudenay