tutorial on how to create your own yahoo messenger client

JAVA的加密源程序，DES等加密算法-JAVA encryption source, such as DES encryption algorithm

文件加密技术的程序-file encryption procedures

用C编写的100行DES加密算法，请参考-C prepared with 100 lines DES encryption algorithm, please refer to

双随相位加密系统的加密程序，调试好的，没有错误-4f

KEELOQ_ENcode　简单的加密程序，可惜就是没有源代码。-KEELOQ_ENcode simple encryption program, but is not the source code.

Fractional joint transform correlator英文文献-Fractional joint transform correlator

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

对ORCLE数据库进行保护，具有很强的功能，有加密，访问，删除，等保护功能-right ORCLE database protection, and highly functional, encryption, access, deletion, such as the protection function

简单实现CRC交验程序-simple inspection procedures

基于Blowfish加密算法的文件加密源程序-Blowfish encryption algorithm based on the source file encryption