tablecrypt是一个文件加密工具。

MD5 HASH摘要算法，采用C语言开发-MD5 HASH digest algorithm using C language development

置换代换密码体制的S-P盒的发生器，能随机产生S盒和P盒，用于置换代换密码体制的加密解密-replacement substitution Cryptosystem S-P boxes of generators, can generate random boxes S and P boxes for the replacement substitution Cryptosystem encryption and decryption

NAME: gmfsk VERSION: 0.6 RELEASE: 1 SUMMARY: Gnome MFSK, RTTY, THROB, PSK31, MT63 and HELLSCHREIBER terminal DISTRIBUTION: OH2BNS VENDOR: OH2BNS LICENSE: GPL PACKAGER: Tomi Manninen GROUP: Applications/Communications OS: linux ARCH: i386 SOURCE RPM: gmfsk-0.6-1.src.rpm DESCRIPTION: gMFSK is a terminal program for MFSK, RTTY, THROB, PSK31, MT63 and HELLSCHREIBER. -NAME: gmfsk VERSION: 0.6 RELEASE: 1 SUMMARY: Gnome MFSK, RTTY, THROB, PSK31, MT63 and HELLSCHREIBER terminal DISTRIBUTION: OH2BNS VENDOR: OH2BNS LICENSE: GPL PACKAGER: Tomi Manninen GROUP: Applications/Communications OS: linux ARCH: i386 SOURCE RPM: gmfsk-0.6-1.src.rpm DESCRIPTION: gMFSK is a terminal program for MFSK, RTTY, THROB, PSK31, MT63 and HELLSCHREIBER.

PE程序加密壳源程序 -PE procedure encryption shell source program

很多加密算法的C实现-lot of the encryption algorithm to achieve C

DES算法实现过程分析-DES algorithm analysis

实现维吉尼亚密码，用键盘接收明文和密钥，屏幕打印密文。-The achievement of Virginia password, use the keyboard to receive explicit and key, screen printing ciphertext.

关于数字水印嵌入时处理水印的源代码，采用猫脸变换对水印图像进行预处理 -Be dealt with on the digital watermark embedding watermark source code, using a cat face on the watermark image pre-processing transformation

rc5 and des encryption and decryption

一个文件加密的例子-Example of a file encryption