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Author/Affiliation: Ismail AkharrazOpen AccessArticle
6 Pages, 1,002 KB 
A new color image encryption algorithm based on iterative mixing of color channels and chaos
Abstract:
In this paper, we present a novel secure cryptosystem for direct encryption of color images, based on an iterative mixing spread over three rounds of the R, G and B color channels and three enhanced chaotic maps. Each round includes an affine transformation that uses three invertible matrices of order 2 _ 2; whose parameters…
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Open AccessArticle
6 Pages, 814 KB
Threshold Multi Split-Row algorithm for decoding irregular LDPC codes
Abstract:
In this work, we propose a new threshold multi split-row algorithm in order to improve the multi split-row algorithm for LDPC irregular codes decoding. We give a complete description of our algorithm as well as its advantages for the LDPC codes. The simulation results over an additive white gaussian channel show that an improvement in…
Read More(This article belongs to Section Applied Mathematics (MAP))