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:杭抵赖的签密方案在一些应用中有重要的价值.已有的方案如认证加密方案和签密方案在解决签名者事 后抵赖的问题时，必须把恢复的消息提供给第三方，从消息的保密方面看，效果并不理想.墓于离散对数问题提出 了安全有效的指定接收者恢复消息的杭抵赖数字签名体制，其特点是只有指定接收者才可以恢复消息，任何人可 以验证签名的合法性，在解决签名者事后抵赖的问题中克服了已有方案的缺陷，不需要签名者的合作、不需要向第 三方提供恢复的消息、不需要与第三方执行交互的零知识证明，在保持恢复消息秘密的同时能揭穿签名者的抵赖 行为.同时把该方案扩充到了指定的一群接收者恢复消息的抗抵赖的多重签名的情形.

DevelopersGuide Delphi Kylix 英文版linux的delphi-DevelopersGuide Delphi Kylix English version of linux delphi

c++技巧-c++ skills

MATLAB数学工具箱,包含了MATLAB在工程数学应用中的函数及其用法-MATLAB Math Toolbox, MATLAB includes mathematical applications in engineering functions and their usage

This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. -This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compar

ADS中文手册 RealView 编译工具 －链接程序和实用程序指南.pdf-ADS Chinese manual RealView compilation tools- links to the procedures and guidelines for practical procedures. Pdf

ISO Total Quality Management

c＋＋设计模式，包括一些源代码-c++ design patterns, including some source code

非常著名的一本书，学习Linux内核的必备。-Well-known a book to learn the necessary Linux kernel.

Concurrent.Programming.in.Java.-.Design.Principles.and.Patterns,.Second.Edition