文件加密压缩解压缩系统

Arithmetic for integers of almost unlimited size for C and C++. Developed and copyrighted by Ralf Dentzer-Arithmetic for integers of almost unlimit ed size for C and C. Developed and copyrighted by Ralf Dentzer

md5的加密函数 iis下运行； 用法: 1：页面包含该文件 2：调用方法MD5(sMessage,stype) 例dim md_=md5("admin"，32) *注：最高32位。-md5 encryption function running under iis Usage: 1: page 2 of the document contains: call method MD5 (sMessage, stype) were dim md_ = md5 ( " admin" , 32)* Note: maximum 32.

它也可以用来解除Adobe Acrobat PDF文件密码的工具，它可以帮助解决加密PDF无法编辑和复制/打印的问题，支持所有版本的Acrobat加密(包含7.x)，也支持128位加密。 -It also can be used to lift the Adobe Acrobat PDF files password tool, it can help to solve encrypted PDF can not edit and copy/print the questions, and support all versions of Acrobat encryption (including 7.x), also supports 128-bit encryption.

RSA加密算法的实现 2^1024大的素数实现-implement the RSA

易语言MD5加密程序... 没什么好多说的了 看了就懂了-Yi language MD5 encryption ...... nothing to say the viewers a much better understand the

ieee一种基于混沌的新加密方法An Image Encryption Scheme Based on Chaotic Map - In this paper, a novel block digital image encryp- tion scheme based on a chaotic coupled map lattices (CML) is reported. Within this scheme, an original image is decomposed into sub-blocks with a given size, and an external secret key with 192-bit is used and mapped to the system parameters, which are employed to generate a spatiotemporal chaotic binary sequence matrix to encrypt the block original image. Besides, the former sub-block encrypted result will be acted as a feedback to the following sub-block encryption proc- ess. The proposed scheme is described in detail, along with the security analyses such as key space analysis, sensitivity analysis, information entropy analysis and correlation coefficients analysis of adjacent pixels. The computer simulation results indicate that the suggested image encryption scheme has some properties desir- able in a good security

EnumCSP - Enumerates Crypto Service Providers Copyright (c) 2000-2004 G.Chapillon All Rights Reserved. Contributor: Jupiter -EnumCSP- Enumerates Crypto Service Providers Copyright (c) 2000-2004 G. Chapillon

美国加密中心公布的DES程序-American Center for the encryption process DES

　使用cryptapi加密的demo程序-cryptapi use encryption procedures demo

.net2003下写的多种加密加密算法的演示-. net2003 written under a variety of encryption encryption algorithm demo