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CCS
2009
ACM
14 years 8 months ago
A generic construction of useful client puzzles
Denial of Service (DoS) attacks are serious threats for network societies. For dealing with DoS attacks, Jakobsson and Juels first proposed the notion of useful client puzzles (UC...
Rui Zhang 0002, Goichiro Hanaoka, Hideki Imai
DCC
2001
IEEE
14 years 7 months ago
Cryptography in Quadratic Function Fields
We describe several cryptographic schemes in quadratic function fields of odd characteristic. In both the real and the imaginary representation of such a field, we present a Diffi...
Renate Scheidler
AINA
2004
IEEE
13 years 11 months ago
Generating Digital Signatures on Mobile Devices
With the explosion of the mobile communication market, more and more handheld devices act as clients in the Internet. People use these devices to purchase books, play games, recei...
Yu Lei, Deren Chen, Zhongding Jiang
ACNS
2007
Springer
96views Cryptology» more  ACNS 2007»
14 years 1 days ago
Universal Accumulators with Efficient Nonmembership Proofs
Based on the notion of accumulators, we propose a new cryptographic scheme called universal accumulators. This scheme enables one to commit to a set of values using a short accumul...
Jiangtao Li, Ninghui Li, Rui Xue
EUROCRYPT
2011
Springer
12 years 11 months ago
Semi-homomorphic Encryption and Multiparty Computation
An additively-homomorphic encryption scheme enables us to compute linear functions of an encrypted input by manipulating only the ciphertexts. We define the relaxed notion of a se...
Rikke Bendlin, Ivan Damgård, Claudio Orlandi...