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PODC
2003
ACM
14 years 25 days ago
Oblivious signature-based envelope
We propose a new cryptographic primitive called oblivious signaturebased envelope (OSBE). Informally, an OSBE scheme enables a sender to send an envelope (encrypted message) to a ...
Ninghui Li, Wenliang Du, Dan Boneh
ASIACRYPT
2008
Springer
13 years 9 months ago
Concurrently Secure Identification Schemes Based on the Worst-Case Hardness of Lattice Problems
In this paper, we show that two variants of Stern's identification scheme [IEEE Transaction on Information Theory '96] are provably secure against concurrent attack unde...
Akinori Kawachi, Keisuke Tanaka, Keita Xagawa
PKC
1999
Springer
87views Cryptology» more  PKC 1999»
13 years 12 months ago
On the Security of RSA Screening
Since many applications require the verification of large sets of signatures, it is sometimes advantageous to perform a simultaneous verification instead of checking each signatu...
Jean-Sébastien Coron, David Naccache
TCC
2004
Springer
131views Cryptology» more  TCC 2004»
14 years 28 days ago
Rerandomizable and Replayable Adaptive Chosen Ciphertext Attack Secure Cryptosystems
Recently Canetti, Krawczyk and Nielsen defined the notion of replayable adaptive chosen ciphertext attack (RCCA) secure encryption. Essentially a cryptosystem that is RCCA secure ...
Jens Groth
CCS
2007
ACM
14 years 1 months ago
Compact FPGA implementations of QUAD
QUAD is a stream cipher whose provable security relies on the hardness of solving systems of multivariate quadratic equations. This paper explores FPGA implementations of the stre...
David Arditti, Côme Berbain, Olivier Billet,...