DES密码体制的安全性应该不依赖于算法的保密，其安全性仅以加密密钥的保密为基础...

用从c/c++实现RSA加密算法的一个实验小程序-From c/c++ Realize RSA encryption algorithm, a small experimental procedures

Windows易用免费MD5验证工具WMD5

MD5的加密算法！-MD5 encryption algorithm!

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

md5及sha-1算法及验证文件，vc6.0调试无误-md5 and sha-1 algorithm and verification documents, vc6.0 debug and correct

pgp 软件源代码-PGP source code

WTLS安全层源程序-WTLS layer security source

个人觉得很不错的简单代码，用很少的程序实现，非常值得一看-in my view, it s a nice and simple code with a few program to achieve the aim. worth to take a look

本包内容包括信息系统安全工程课程中的密码学基础、公钥加密与RSA、分组密码与DES共3个章节的内容，原汁原味的老师课堂讲义~包你喜欢~~！-This package includes information systems security engineering curriculum-based cryptography, public key encryption and RSA, block cipher with DES a total of three sections, authentic classroom teacher handouts ~ package you like ~ ~!

Base64组件的应用-Base64 application components