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[OS program] s-des算法分析及实现 DL : 0: :ＤＥＳ体制是ＩＳＯ颁布的数据加密标准,通过对ＤＥＳ算法的分析,提出了用Ｃ语言实现数据加密标准ＤＥＳ算法,通过循环或迭代,将简单的基本运算(例如左移、右移、模2加法等)和变换(选择函数、置换函数)构造成数据流的非线性变换(加密变换或解密变换),从而实现对计算机数据进行密码保护。着重介绍了用Ｃ语言实现其加密的主要过程。关键词:数据加密ＤＥＳＣ语言-: DES system is ISO issued by the Data Encryption Standard, DES algorithm on the analysis of the C language standard DES data encryption algorithm, or through iterative cycle of simple basic operations (such as bits, death, die two Adder, etc.) and transform (choice function, function replacement) structural data streams into the nonlinear transformation (encryption or decryption transform Transform), thereby achieving data on the computer password protection. Highlights of the C language to achieve its key encryption process. Keywords : DES data encryption C language
Date : 2008-10-13 Size : 537.19kb User : 王冰
[OS program] s-des算法分析及实现 DL : 0: :ＤＥＳ体制是ＩＳＯ颁布的数据加密标准,通过对ＤＥＳ算法的分析,提出了用Ｃ语言实现数据加密标准ＤＥＳ算法,通过循环或迭代,将简单的基本运算(例如左移、右移、模2加法等)和变换(选择函数、置换函数)构造成数据流的非线性变换(加密变换或解密变换),从而实现对计算机数据进行密码保护。着重介绍了用Ｃ语言实现其加密的主要过程。关键词:数据加密ＤＥＳＣ语言-: DES system is ISO issued by the Data Encryption Standard, DES algorithm on the analysis of the C language standard DES data encryption algorithm, or through iterative cycle of simple basic operations (such as bits, death, die two Adder, etc.) and transform (choice function, function replacement) structural data streams into the nonlinear transformation (encryption or decryption transform Transform), thereby achieving data on the computer password protection. Highlights of the C language to achieve its key encryption process. Keywords : DES data encryption C language
Date : 2026-01-01 Size : 537kb User : 王冰
[OS program] Library_of_Cryptographic DL : 0: a C++ Class Library of Cryptographic Primitives This library includes: MD2, MD5, SHA-1, HAVAL, Tiger, RIPE-MD160, MD5-MAC, HMAC, XOR-MAC, DES, IDEA, WAKE, 3-WAY, TEA, SAFER, Blowfish, SHARK, GOST, CAST-128, Square,Diamond2, Sapphire, RC2, RC5, RC6, MARS, SEAL, Luby-Rackoff, MDC, various encryption modes (CFB, CBC, OFB, counter), DH, DH2, MQV, DSA, NR, ElGamal, LUC, LUCDIF, LUCELG, Rabin, RW, RSA, BlumGoldwasser, elliptic curve cryptosystems, BBS, DEFLATE compression,Shamir s secret sharing scheme, Rabin s information dispersal scheme.-a C++ Class Library of Cryptographic Primitives This library includes: MD2, MD5, SHA-1, HAVAL, Tiger, RIPE-MD160, MD5-MAC, HMAC, XOR-MAC, DES, IDEA, WAKE, 3-WAY, TEA, SAFER, Blowfish, SHARK, GOST, CAST-128, Square,Diamond2, Sapphire, RC2, RC5, RC6, MARS, SEAL, Luby-Rackoff, MDC, various encryption modes (CFB, CBC, OFB, counter), DH, DH2, MQV, DSA, NR, ElGamal, LUC, LUCDIF, LUCELG, Rabin, RW, RSA, BlumGoldwasser, elliptic curve cryptosystems, BBS, DEFLATE compression,Shamir s secret sharing scheme, Rabin s information dispersal scheme.
Date : 2026-01-01 Size : 379kb User : 刘永
[OS program] des DL : 0: 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-DES (Data Encryption Standard) algorithm, in 1977 the U.S. government s official permission, is a 56 by 64 key to encrypt data. Although the 56 key scenery DES algorithm has not, and often with Des expressly been deciphered encrypted reports, but look past the United States standard encryption algorithm is always useful, but the current DES algorithm is widely used, to a certain some occasions, she continued to play a heat
Date : 2026-01-01 Size : 944kb User : 朝猛子
[OS program] Encryption_Demo DL : 0: C#加密解密程序及源代码，加密主要分两步进行，第一步选择文件，第二步随机产生对成加密钥匙Key和IV、使用发送者私钥签名随机密钥，使用接收者公钥加密密钥和签名、利用随机密钥使用DES算法分组加密数据、MD5摘要生成-->用发送者私钥签名；-C# encryption and decryption procedures and source code, encryption key two steps, first select the file, step right into a randomly generated encryption key Key, and IV, using the sender' s private key signing random key, use the recipient public key encryption secret keys and signatures, using random key encrypted data packet using the DES algorithm, MD5 summary is generated- " with the sender' s private key signature
Date : 2026-01-01 Size : 20kb User : jiangfengmou
[OS program] ReadDiskSerialNum DL : 0: 读取本机硬盘的序列号，并使用DES加密，转换为加密字符串，并可Copy到剪贴板。可用于系统绑定，授权等简单保护。-To read the serial number of the machine s hard drive, and use the DES encryption convert encrypted string can Copy it to the clipboard. Can be used for system-bound, authorized simple protection.
Date : 2026-01-01 Size : 13kb User :
[OS program] DES DL : 0: 该算法在1.79GHZ的CPU上测试的速度是850KB/S。加密算法与CPU的运转速度是成线性关系的。随着双核以及多核CPU的出现，硬件的改善讲会成倍的加快算法的运行速度。-The algorithm is tested on a CPU 1.79GHZ speed is 850KB/S. CPU operating speed and the encryption algorithm is a linear relationship. With the emergence of dual-core and improve multi-core CPU, hardware speaking speed will be doubled to speed up the algorithm.
Date : 2026-01-01 Size : 11kb User : 张赛
[OS program] SetTime DL : 0: 一款可以修改文件或文件夹的修改时间工具。 param: -v show information of file s time -c clone information of file time -m modify information of file time ---------------------------------------- -s source file or directory -d destion file or directory ---------------------------------------- -C time of create -R time of last access -W time of last write ---------------------------------------- usage: exe -v c:\test.txt exe -c -s c:\src.txt -d c:\des.txt exe -m -d c:\test.txt -C 20001010-151011 exe -m -d c:\test.txt -C 20001010-151011 -R 20001010-151011 -W 20001010 -This tool can help you to change file or directory s time,by slls124
Date : 2026-01-01 Size : 4kb User : MrZhang