-Elliptic.rar - We present elliptic curve cryptography (ECC) coprocessor,
which is dual-field processor with projective
coordinator. We have implemented architecture for scalar
multiplication, which is key operation in elliptic curve
cryptography. Our coprocessor can be adapted both prime field
and binary field, also contains a control unit with 256 bit serial
and parallel operations , which provide integrated highthroughput
with low power consumptions. Our scalar multiplier
architecture operation is perform base on clock rate and produce
better performance in term of time and area compared to similar
works. We used Verilog for programming and synthesized using
Xilinx Vertex II Pro devices. Simulation was done with Modelsim
XE 6.1e, VLSI simulation software from Mentor Graphics
Corporation especially for Xilinx devices.,2012-02-09 10:48:50,下载84次
a-new-fast-stream-cipher--20110914.rar - A new fast stream cipher, MAJE4 is designed and
developed with a variable key size of 128-bit or 256-bit. The
randomness property of the stream cipher is analysed by using
the statistical tests. The performance evaluation of the stream
cipher is done in comparison with another fast stream cipher
called JEROBOAM. The focus is to generate a long
unpredictable key stream with better performance, which can
be used for cryptographic applications.
Keywords- cryptography, stream cipher, pseudo random
number generator (PRNG),2012-02-09 10:45:42,下载28次
catmap.rar - The purpose of this paper is to discuss and explore the properties of Arnold’s cat
map, a chaotic mapping of the pixels of an image. By way of this, the introductory
principles of the exciting new science of chaos are addressed.,2012-02-09 10:41:44,下载34次
8524347.rar - ：由于混沌系统对初始条件和混沌参数非常敏感以及生成的混沌序列具有非周期性
和伪随机性的特性，近年来混沌系统在密码学领域中得到了较多的研究。介绍了混沌学
理论和现代密码学的具体内容，通过对混沌和密码学之间关系的分析。提出了把混沌用
于密码学之中的具体方法和混沌密码系统的框架结构，给出了数字加密中选择混沌系统
的原则。,2012-02-09 10:39:26,下载6次
Logistic.rar - ：提出了一种新的基于混沌映射与排序变换的图像加密算法。混沌序列具有容易生成、对初始条件敏感以及具备白噪声的统计特性等优点。该算法利用混沌映射对初值的敏感性和伪随机性，通过对生成的混沌序列排序来得到图像置乱的地址变换码，由于排序的不规则性，因此新的混沌图像置乱算法具有较强的保密性能。通过对该算法的置乱性能分
析并进行仿真实验，结果表明，新算法具有良好的图像加密性能。,2012-02-09 10:36:31,下载102次