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chipher
:目前混沌系统与加密技术相结合是现如今最热门的一个课题,虽然有大量的加密算法面世,但是这些加密算法并不成熟,仍然需要进一步的研究。本文采用像素位置置乱变换和像素值替代变换相结合的加密思想,设计出一种基于混沌的数字图像加密算法。引入了整数域上的逆仿射变换,算法中采用二维 logistic 混沌映射相结合的方法,生成多组混沌序列,像素置乱变换与灰度值替换都由这些混沌序列所控制。多混沌序列产生的密钥空间大于单一的混沌序列所产生的密钥空间,因此本文研究的算法加密强度很高。(The current chaotic system with encryption technology combined is now one of the hottest topics, although there are a number of encryption algorithms available, but these encryption algorithms are not ripe, still need further study. In this paper, the pixel position and the pixel value Scrambling alternative encryption ideological transformation combining design a digital image based on chaos encryption algorithm. The introduction of the inverse affine transformation integer domain, the algorithm uses a two-dimensional logistic chaos mapping method of combining to produce multiple sets of chaotic sequence, scrambling transformation and pixel gray values are replaced by the chaotic sequence control. Key space more chaotic sequence is greater than the key space of a single chaotic sequence generated by the algorithm to encrypt and therefore high strength paper.)
- 2015-07-31 13:37:22下载
- 积分:1
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ROT13Encrypt
一个很好的使用 ROT13 算法加密和解密数据的算法(A good algorithm using ROT13 algorithm to encrypt and decrypt data)
- 2013-09-09 15:34:05下载
- 积分:1
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Lock Manage 是一个功能比较全面的加密软件。 它具有多种加密方案:如文件口令加密,文件反拷贝加密,软硬盘加密,安装加密,文本加密,批处理加密等等。系统...
Lock Manage 是一个功能比较全面的加密软件。 它具有多种加密方案:如文件口令加密,文件反拷贝加密,软硬盘加密,安装加密,文本加密,批处理加密等等。系统是由C和汇编写成,可从外部链接于主模块。可单独编译,单独调试。可执行EXE/COM程序加密模块已经过长时间的测试分析,其工作性能己十分稳定。可移植性与兼容性很好。另外,代码实现了CS,DS不换技术,使其SHELL性能难以被DEBUG识别。其内部密码采用单向不可逆变换,基本实现了不可解,原因在于四个随机密钥只能用穷举法找出。这种可靠原四密钥单向加密技术渗透到了后面的几个程序中。对于反拷贝加密,采用了随机的软指纹生成技术,可生成唯一密钥母盘。硬盘反拷贝在硬盘里产生四密钥,在非母机上程序运行错误。反反汇编可将整个文件的内容加密变换。反跟踪采用了目前十余种通用的反跟踪算法。可抵抗DEBUG系列软件。批处理和文本加密十分方便,但保密性不太强,只能用于一般用户。-Lock function is a more comprehensive encryption software. It has a wide variety of encryption programs : documents such as password encryption, anti-copy document encryption, hard disk encryption software, the installation of encryption, encrypted text, etc. batch encryption. C system is written and compiled, from the external links in the main module. Separately compiler, debugger alone. EXE executable/COM procedures encryption module has been tested over a long period of analysis, their performance has very stable. Good portability and compatibility. In addition, the implementatio
- 2022-10-06 16:00:03下载
- 积分:1
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使用openssl库,公钥对数据进行加密的dll库的源代码
使用openssl库,公钥对数据进行加密的dll库的源代码-Using openssl library, public key data encryption dll library source code
- 2022-03-18 05:44:34下载
- 积分:1
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微软cryptapi文档
微软cryptapi文档-Microsoft cryptapi document
- 2022-03-19 16:02:42下载
- 积分:1
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MUC1_C4
奇迹C1 C2 C3 C4协议加密与解密(MU C1 C2 C3 C4 encrypt and decrypt)
- 2021-02-17 12:19:46下载
- 积分:1
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right files and folders simple encryption
对文件和文件夹进行简单加密-right files and folders simple encryption
- 2022-02-07 17:07:50下载
- 积分:1
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lorentz
文字图像,通过混沌加密,利用洛伦兹变换,即三维空间加密程序(Text images, through encryption, using the Lorentz transformation, ie three-dimensional encryption program)
- 2010-05-21 01:05:08下载
- 积分:1
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diban
转下的源代码程序,此程序需要密码,但可以正常使用,并可对后台进行部分修改(Transfer the source code under the program, this program requires a password, but can be used normally, it may also be part of the background changes)
- 2009-12-14 23:09:16下载
- 积分:1
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db22excel
this is a document to describe db2 excel
- 2014-08-07 14:05:12下载
- 积分:1