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ICMCS
2000
IEEE
145views Multimedia» more  ICMCS 2000»
14 years 2 months ago
Staganalysis of LSB Encoding in Color Images
In this paper, we analyze the security of Least Significant Bit (LSB) embedding for hiding messages in high-color-depth digital images. We introduce a powerful steganalytic techni...
Jiri Fridrich, Rui Du, Meng Long
CRYPTO
2012
Springer
262views Cryptology» more  CRYPTO 2012»
12 years 6 days ago
Functional Encryption with Bounded Collusions via Multi-party Computation
We construct a functional encryption scheme secure against an a-priori bounded polynomial number of collusions for the class of all polynomial-size circuits. Our constructions req...
Sergey Gorbunov, Vinod Vaikuntanathan, Hoeteck Wee
STOC
1999
ACM
81views Algorithms» more  STOC 1999»
14 years 2 months ago
PCP Characterizations of NP: Towards a Polynomially-Small Error-Probability
This paper strengthens the low-error PCP characterization of NP, coming closer to the upper limit of the BGLR conjecture. Consider the task of verifying a witness for the membersh...
Irit Dinur, Eldar Fischer, Guy Kindler, Ran Raz, S...
CORR
2008
Springer
80views Education» more  CORR 2008»
13 years 9 months ago
A Dual Polynomial for OR
We reprove that the approximate degree of the OR function on n bits is ( n). We consider a linear program which is feasible if and only if there is an approximate polynomial for ...
Robert Spalek
JC
2007
119views more  JC 2007»
13 years 9 months ago
Factoring bivariate sparse (lacunary) polynomials
We present a deterministic algorithm for computing all irreducible factors of degree ≤ d of a given bivariate polynomial f ∈ K[x, y] over an algebraic number field K and their...
Martin Avendano, Teresa Krick, Martín Sombr...