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Description: DES加密，3-16层加密任选，带中间结果统计，可选加密文件-DES encryption ,3-16 layer encryption optional, with intermediate results statistics, optional encrypted file
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Size: 111616 |
Author: 郭鹏飞 |
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Description: 算法流程
1.将要处理的二进制串进行IP置换
2.将密钥进行PC1置换(64位转为56位),
3.进行16轮操作,对于第i轮操作:
1)将上一次得到的PC1密钥(级除去第一次外,其他的都经过移位处理)的结果左右部分(各28位)分别循环左移1位或2位,然后将移位后的密钥进行PC2[i]置换.
2)将处理串均等分为左右两串Li,Ri(各32位),然后将右串Ri通过E盒拓展为新的右串R (48位),R 与上一步得到的PC2[i]子密钥进行异或操作,结果通过S盒输出(48为转为32位),然后通过P盒直接置换,再与Li异或.
3)将Ri赋给作出Li,R 赋值给Ri.
4)合并处理串StrText=Li+Ri.
4.将最新的处理串进行IP_1置换,置换结果即为所求的加密串或解密串
加密解密的区别
在每轮操作中,加密使用的PC2密钥顺序为0~15,解密使用的PC2密钥顺序为15~0. -Algorithm flow
A binary string to be processed is substituted for IP
2 key the PC1 replacement (64 into 56)
16 operation, the operation for the i-th round:
1) about the results of the last PC1 key (remove the first time, the others have been shifting processing) (28) rotate left one or two, and then will shift key PC2 [i] replacement.
2) is divided into the equal treatment string around two bunches of Li, Ri (32), and then expand the right string Ri E box (48-bit), the right string R R and the previous step PC2 i] subkey XOR operation result is output via the S-box (48 to 32 conversion), and then directly through the P box replacement and XOR with Li.
3) the Ri to make Li, R is assigned to Ri.
4) merger deal with string StrText Ri = Li+.
4. Latest processing string IP_1 replacement, replacement results shall request string encryption or decryption string
Encryption and decryption of difference
In each round of operations, PC2 key e
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Size: 2048 |
Author: zhusiyi |
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Description: Important en Analyse des SSLIC
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Size: 674816 |
Author: Ronin |
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Description: openssl常用功能练习源码，包括des、3des、rsa加解密算法，数字签名操作，pem和der格式转换，以及证书操作等。适用于初学者。-Openssl function practice commonly used source code, including des, 3 des, rsa encryption algorithm, digital signature, pem and der format conversion, as well as certificate of operation and so on. Suitable for beginners.
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Size: 636928 |
Author: 程 |
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Description: des算法规范文档，英文版，学习/实现des算法参考资料。-The des algorithm specification document, the English version, learning/des algorithm reference.
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Size: 142336 |
Author: pudn |
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Description: c# 调用已有的类实现 3DES AES两种加密算法，输入的文件为1.txt 10.txt。。。文件大小为 1k 10k 100k 1000k 10000k 输出加解密时间-C# call for two classes implement 3 des, AES encryption algorithm, the input file for 1. TXT 10. TXT... File size is 1 k, 10 k, 100 k, 1000 k, 10000 k output encryption time
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Size: 28503040 |
Author: chenqun |
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Description: 实现DES算法1重2重3重的加密，有图形界面，适合初学者-DES algorithm Heavy 2 Heavy-weight encryption, a graphical interface, suitable for beginners
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Size: 58368 |
Author: liu |
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Description: PHP常用加密的库与例子，还有手册,包含-DES,RAS,SSH1,SSH2-Although many of the features this library implements are implemented in PHP via optional extensions, what are you, as a developer, going to do when a user tries to run your software on a host which, coincidentally, doesn t happen to have that optional extension installed? You could, flat-out, tell that user to look for another software package that does work on their server (or to get another host, or whatever), which is liable to leave a bad impression on the user, or you could use a library like this- a library that uses those optional extensions if they re available and falls back on an internal PHP implementation if they re not.
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Size: 178176 |
Author: 宋辉 |
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Description: DES密码的C语言实现。
输入为同目录下存放明文的1.txt文件，存放密钥的key.txt文件。输出为加密后的2.txt文件，以及2.解密后的3.txt。-DES passwords C language. Enter the same directory stored plaintext 1.txt, stored keys key.txt . 2.txt the encrypted output file, and 2. Decrypted 3.txt.
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Size: 18432 |
Author: VongRuohang |
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Description: DES/3DES加解密系统的设计和实现，通过STM32开发板进行实现。-DES/3 DES encryption system
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Size: 6607872 |
Author: l李永明 |
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Description: 本系统实现了一个基本的混合密码系统。它使用DES作为对称密钥算法，RSA作为公开密钥算法。本系统特点如下：
1：提供了俩个加密接口。混合加密，DES加密。
2：本系统的DES可以进行1次DES加密(标准DES加密)和3次DES加密。它会根据密钥长度，自动选择加密方案。当密钥长度在64位以内时它将使用标准DES加密，当密钥长度超过64位后，系统将设置第2密钥，并启用3次DES加密。其密钥长度可达112位，并且它还具有很强的扩展性，提供了3种加解密接口：文件接口，文件句柄接口(可以供其他加密系统使用，本系统的混合加密模块就是使用这个接口)，和内存缓冲区接口。另外它还能检验密钥的正确性，因为加密时，它将加密后的密钥密文也存入文件中，解密时，先用当前密钥解密密钥密文，如果所得的密钥明文与当前密钥相同，则当前密钥应该是正确的。
-This system has realized a basic mixed password system. It uses DES as a symmetric key algorithm, RSA as a public key algorithm. The features of the system are as follows:
1: provides both encryption interface. Hybrid encryption, DES encryption.
2: the system of DES can be 1 times (DES encryption standard DES encryption and DES encryption) 3. It will be based on the key length, automatic encryption scheme. When key length within 64 bits, it will use the standard DES encryption key length, when more than 64 bits, the system will be set up second key, and enable the 3 DES encryption. The key length of 112 bits, and it also has strong expansibility, provides 3 kinds of encryption interface: interface file, the file handle interface (can be used for other encryption, hybrid encryption module of this system is to use this interface), and buffer memory interface. In addition it can check the correctness of the encryption key, because, it will be encrypted key cipher text is stored in the f
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Size: 5545984 |
Author: gu |
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Description: 参考别人的后，用MFC做的DES加密解密，有完整的工程。可以对文档进行加密解密。可以在没有打开文本的情况下对文本内容进行预览。可以加密.doc文档，当密钥大于8，自动启动3重DES加密解密。-Reference to others, the use of MFC to do DES encryption and decryption, a complete project. Can decrypt the document. You can not open the case of the text content of the text preview. Can be encrypted. Doc document, when the key is greater than 8, automatic re-start 3 DES encryption and decryption.
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Size: 1897472 |
Author: 陈炜 |
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Description: 提供简单常用的文本加密解密功能，包括：1、单向HASH加密（MD5、SHA算法）；2、基于.NET平台Base64String的加密解密；3、DES、RC2算法加密解密。可满足常规的文本加密解密、密码测试等需求。-Provides a simple common text encryption and decryption functions, including: a one-way encrypted HASH (MD5, SHA algorithm) 2. NET-based platform Base64String encryption and decryption 3, DES, RC2 algorithm for encryption and decryption. To meet the regular text encryption and decryption, password testing requirements.
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Size: 49152 |
Author: Elvind |
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Description: 标准DES加密解密算法C源代码
1.此代码绝对正确可靠，而且是标准的DES算法，已经用于现场。
2.用于通讯加密解密
3.此代码运行结果与DES加密解密工具测试结果完全一样
-Standard DES encryption and decryption algorithm C source code 1 This code is absolutely correct and reliable, and is the standard DES algorithm has been used for the scene. 2 for communications encryption and decryption 3 This code runs DES encryption and decryption tool results exactly the same test results
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Size: 3072 |
Author: 万娜 |
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Description: 银行进入软件系统中进程会用到的系统des，3des算法加密解密C语言实现-Banks into software system of process is used in the des, 3 des algorithm encryption to decrypt the C language implementation
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Size: 3072 |
Author: 陈贵华 |
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Description: Des对16进制的字符串进行加解密，支持3Des和MAC的计算-Des for hexadecimal string encryption, support 3 Des and MAC calculation
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Size: 20480 |
Author: 华英 |
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Description: DES加密算法的实现。DES文件夹中，1.txt是要加密的文件，2.txt是加密后的文件，3.txt是2.txt解压的结果。-DES encryption algorithm. DES folder, 1.txt is to encrypt the file, 2.txt is encrypted files, 3.txt 2.txt is the result of decompression.
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Size: 1264640 |
Author: chenjy |
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Description: 实现DES加密算法的加密解密功能，能够实现56位或56*3密钥的des算法，可以通过该程序提供的接口，进行数据的加密，保证数据在传送过程的安全性。-The realization of DES encryption algorithm for encryption and decryption functions, can realize the algorithm of Des 56 or 56*3 key, can be provided through the program interface, data encryption, ensure the data security in transmission process.
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Size: 39936 |
Author: 郭过 |
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Description: DES 加密算法详细介绍，包括最基本的原始操作。-DES encryption algorithm in detail, including the most basic of the original operation.
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Size: 285696 |
Author: duan |
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Description: C# 对接 Java 3des md5WithRsa, 有需要的可以参考下-C# docking md5WithRsa Java 3 des, have need can under reference
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Size: 708608 |
Author: azg@655 |
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