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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...
CCR
2000
101views more  CCR 2000»
13 years 7 months ago
Knowledge-proof based versatile smart card verification protocol
We propose a zero-knowledge interactive proof based identification and signature scheme. The protocol is based on Euler's totient function and discrete logarithms over the ri...
Dae Hun Nyang, Joo-Seok Song
HIP
2005
Springer
208views Cryptology» more  HIP 2005»
14 years 1 months ago
Phish and HIPs: Human Interactive Proofs to Detect Phishing Attacks
In this paper, we propose a new class of Human Interactive Proofs (HIPs) that allow a human to distinguish one computer from another. Unlike traditional HIPs, where the computer is...
Rachna Dhamija, J. D. Tygar
EUROCRYPT
2004
Springer
14 years 1 months ago
Practical Large-Scale Distributed Key Generation
Generating a distributed key, where a constant fraction of the players can reconstruct the key, is an essential component of many largescale distributed computing tasks such as ful...
John F. Canny, Stephen Sorkin
CRYPTO
2000
Springer
151views Cryptology» more  CRYPTO 2000»
13 years 12 months ago
New Public-Key Cryptosystem Using Braid Groups
Abstract. The braid groups are infinite non-commutative groups naturally arising from geometric braids. The aim of this article is twofold. One is to show that the braid groups ca...
Ki Hyoung Ko, Sangjin Lee, Jung Hee Cheon, Jae Woo...