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ASIACRYPT
2008
Springer
13 years 9 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...
IACR
2011
101views more  IACR 2011»
12 years 7 months ago
Policy-Enhanced Private Set Intersection: Sharing Information While Enforcing Privacy Policies
Companies, organizations, and individuals often wish to share information to realize valuable social and economic goals. Unfortunately, privacy concerns often stand in the way of ...
Emil Stefanov, Elaine Shi, Dawn Song
ASIACRYPT
2009
Springer
14 years 2 months ago
A Modular Design for Hash Functions: Towards Making the Mix-Compress-Mix Approach Practical
The design of cryptographic hash functions is a very complex and failure-prone process. For this reason, this paper puts forward a completely modular and fault-tolerant approach to...
Anja Lehmann, Stefano Tessaro
ASIACRYPT
2010
Springer
13 years 5 months ago
Lattice-Based Blind Signatures
Blind signatures (BS), introduced by Chaum, have become a cornerstone in privacy-oriented cryptography. Using hard lattice problems, such as the shortest vector problem, as the bas...
Markus Rückert
PKC
2009
Springer
115views Cryptology» more  PKC 2009»
14 years 8 months ago
Compact CCA-Secure Encryption for Messages of Arbitrary Length
This paper proposes a chosen-ciphertext secure variant of the ElGamal public-key encryption scheme which generates very compact ciphertexts for messages of arbitrary length. The ci...
Masayuki Abe, Eike Kiltz, Tatsuaki Okamoto