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EUROCRYPT
2007
Springer
14 years 1 months ago
Simulatable Adaptive Oblivious Transfer
We study an adaptive variant of oblivious transfer in which a sender has N messages, of which a receiver can adaptively choose to receive k one-after-the-other, in such a way that ...
Jan Camenisch, Gregory Neven, Abhi Shelat
ICDCSW
2005
IEEE
14 years 1 months ago
Defending against Sybil Attacks in Sensor Networks
Sybil attack is a harmful threat to sensor networks, in which a malicious node illegally forges an unbounded number of identities to defeat redundancy mechanisms. Digital certifi...
Qinghua Zhang, Pan Wang, Douglas S. Reeves, Peng N...
ACISP
2005
Springer
14 years 1 months ago
Two Improved Partially Blind Signature Schemes from Bilinear Pairings
A blind signature scheme is a protocol for obtaining a digital signature from a signer, but the signer can neither learn the messages he/she sign nor the signatures the recipients ...
Sherman S. M. Chow, Lucas Chi Kwong Hui, Siu-Ming ...
NDSS
2003
IEEE
14 years 26 days ago
Proxy Cryptography Revisited
In this work we revisit and formally study the notion of proxy cryptography. Intuitively, various proxy functions allow two cooperating parties F (the “FBI”) and P (the “pro...
Anca-Andreea Ivan, Yevgeniy Dodis
ACNS
2003
Springer
131views Cryptology» more  ACNS 2003»
14 years 25 days 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