desedecbc

Cryptography and Network Security, 4th Ed.-Stallings ebook. free to download

CRC32 check

VC++编写的DES算法查看器源代码，DES算法目前应用已十分广泛，本程序的主要功能是在查看DES加密过程中生成的Ki,Li,Ri,Fi,Si等，可以当做一个DES加密对照器，从而方便的发现你在加密过程中出现的错误，以便于你快速做出反应 -DES Algorithm

DES算法源代码，这是自己书写的源代码，里面采用了非常多的技巧来提高编解码的效率，研究算法和源码的朋友们，我书写的这个代码可以作为你们很好的参考。-DES algorithm source code, which is writing its own source code, which uses a lot of skills to improve the efficiency of the codec to study the algorithms and source of my friends, I am writing you this code can be used as a good reference.

Base64 加密算法（Author 蒋柏良 Jerry Jiang)-* * DESCRIPTION * Base64 processes input in 24bit chunks by converting each chunk into 4 * bytes of output. It does so by splitting input into four 6bit groups and * using these as indexes in the following substitution table- * const char base64_map[] = * "ABCDEFGHIJKLMNOPQRSTUVWXYZ" * "abcdefghijklmnopqrstuvwxyz" * "0123456789+/" * If an input is not a multiple of 3 bytes, it s padded with zeros. In * this case the output bytes that consist entirely of the pad data are * replaced with = . * * Example * An input of 0x00 0x45 0xF2 is equivalent to 00000000 01000101 11110010 * bit sequence, which s then split into 000000 000100 010111 110010 * and these are substituted to produce the following base64 encoding * A E X y * * RETURN VALUE * b64_length() should return output length for the input of len bytes. * b64_encode() should encode len bytes from src int

这用于制作 vignere 算法的源代码。它是在密码学中的经典算法之一。使用 visual basic，它将给一个友好的界面给用户和易于使用。享受 ！

HAMMING ECC，1 BIT ERROR CORRECTION， 2 BITS ERROR DETECTION -HAMMING ECC，1 BIT ERROR CORRECTION， 2 BITS ERROR DETECTION

是当今比较新的算法MD5，比DES和DES5都要加密好，是dll文件，在自己写的程序中加入它，就可以直接用了，全是意接口的形式-Is the relatively new algorithm MD5, should DES5 than DES and encryption, and is a dll file, written in their own process to join it, can be directly used, the interface is intended to form ~ ~ ~ ~

MD5文件签名算法的另一个实现-MD5 algorithm to achieve another

des差分密码分析实现源代码-des differential cryptanalysis achieve source code