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DES( Data Encryption Standard)算法，于1977年得到美国政府的正式许可，是一种用56位密钥来加密64位数据的方法。虽然56位密钥的DES算法已经风光不在,而且常有用Des加密的明文被破译的报道,但是了解一下昔日美国的标准加密算法总是有益的,而且目前DES算法得到了广泛的应用,在某些场合,她仍然发挥着余热.（如：UNIX的密码算法就是以DES算法为基础的）。将其修改为三重DES也能抵抗破解。下面是关于如何实现DES算法的语言性描述：(DES ( Data Encryption Standard ) algorithm, in 1977 the U.S. government s official permission , is a 56 -bit key to encrypt 64 data . 56 keys of the DES algorithm scenery is not , and often with Des encryption expressly decipher reported , but look at the old standard encryption algorithm is always useful , but the DES algorithm has been widely used in a some occasions , she still plays a waste heat . (such as : UNIX password algorithm is DES algorithm -based ) . To modify the Triple DES is also resistant to cracking . The following is a description language on how to achieve the DES algorithm : )

RC6加密算法 的实现及说明 ，既展现Rc6的函数实现(RC6 Encryption Algorithm and description)

加密、安全、压缩处理，实例，有爱好者可以学习-Encryption, security, compression treatment, examples have lovers can learn

ieee加密新文章A New Image Encryption Arithmetic Based on a Three-dimensional Map -A New Image Encryption Arithmetic Based on a Three-dimensional Map

有关椭圆曲线数字签名的书籍，是密码学的一个重要分支-a digital of signature base on ecc

c51-----des --- 可以完成加密解密等功能，测试通过没问题-c51----- des------ to be completed, such as encryption and decryption functions, the test No problem! ! !

This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.-This program is free software you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

一个Data Encryption Standard加密程序(DES encryption)

时域LSB隐藏算法,实现随机信息隐藏到载体图片内,并界附带提取信息代码-LSB hidden time-domain algorithm, the realization of random information hidden within the picture carrier, and industry code attached to extract information

C++写的md5算法实现，喜欢的拿去吧，哈哈~-Writing C++ implementation of md5 algorithm, like take it, haha ~