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ACNS
2008
Springer
94views Cryptology» more  ACNS 2008»
15 years 8 months ago
An Authentication Scheme Based on the Twisted Conjugacy Problem
The conjugacy search problem in a group G is the problem of recovering an x G from given g G and h = x-1 gx. The alleged computational hardness of this problem in some groups was...
Vladimir Shpilrain, Alexander Ushakov
AFRICACRYPT
2008
Springer
15 years 8 months ago
How (Not) to Efficiently Dither Blockcipher-Based Hash Functions?
Abstract. In the context of iterated hash functions, "dithering" designates the technique of adding an iteration-dependent input to the compression function in order to d...
Jean-Philippe Aumasson, Raphael C.-W. Phan
ASIACRYPT
2008
Springer
15 years 8 months ago
Twisted Edwards Curves Revisited
This paper introduces fast algorithms for performing group operations on twisted Edwards curves, pushing the recent speed limits of Elliptic Curve Cryptography (ECC) forward in a ...
Hüseyin Hisil, Kenneth Koon-Ho Wong, Gary Car...
ASIACRYPT
2008
Springer
15 years 8 months ago
Ambiguous Optimistic Fair Exchange
Optimistic fair exchange (OFE) is a protocol for solving the problem of exchanging items or services in a fair manner between two parties, a signer and a verifier, with the help o...
Qiong Huang, Guomin Yang, Duncan S. Wong, Willy Su...
ASIACRYPT
2008
Springer
15 years 8 months ago
Compact Proofs of Retrievability
In a proof-of-retrievability system, a data storage center must prove to a verifier that he is actually storing all of a client's data. The central challenge is to build syst...
Hovav Shacham, Brent Waters