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PODC
2003
ACM
15 years 4 months 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
15 years 22 days 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»
15 years 3 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»
15 years 4 months 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
15 years 4 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,...