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CTRSA
2011
Springer
243views Cryptology» more  CTRSA 2011»
12 years 11 months ago
Better Key Sizes (and Attacks) for LWE-Based Encryption
We analyze the concrete security and key sizes of theoretically sound lattice-based encryption schemes based on the “learning with errors” (LWE) problem. Our main contribution...
Richard Lindner, Chris Peikert
EUROCRYPT
2004
Springer
14 years 1 months ago
Chosen-Ciphertext Security from Identity-Based Encryption
Abstract. We propose a simple and efficient construction of a CCAsecure public-key encryption scheme from any CPA-secure identity-based encryption (IBE) scheme. Our construction re...
Ran Canetti, Shai Halevi, Jonathan Katz
IJNSEC
2008
109views more  IJNSEC 2008»
13 years 8 months ago
A Multi-band Wavelet Watermarking Scheme
This paper presents a new multi-band wavelet watermarking scheme. Compared with conventional watermarking schemes implemented in two-band wavelet domain, by incorporating the prin...
Xiangui Kang, Wenjun Zeng, Jiwu Huang
IWDW
2004
Springer
14 years 1 months ago
Watermarking Attack: Security of WSS Techniques
Most of watermarking techniques are based on Wide Spread Spectrum (WSS). Security of such schemes is studied here in adopting a cryptanalysis point of view. The security is proport...
François Cayre, Caroline Fontaine, Teddy Fu...
CRYPTO
2006
Springer
108views Cryptology» more  CRYPTO 2006»
13 years 11 months ago
Inverting HFE Is Quasipolynomial
In the last ten years, multivariate cryptography has emerged as a possible alternative to public key cryptosystems based on hard computational problems from number theory. Notably,...
Louis Granboulan, Antoine Joux, Jacques Stern