有多种加密算法，如：字节取反、循环异或、码变换法、CSED、D3DES。...

s-Demo2.0 加密解密算法-s-Demo2.0

DES 加密系统的 C 语言源代码-DES encryption system in C language source code

java加密程序-java encryption

Consecutive AES core Description of project.. Features - AES encoder - 128/192/256 bit - AES decoder - 128/192/256 bit Status - Key Expansion added - Encoder added - Decoder added - Documentation added

采用CAST-256位加密的Back Orifice 2000(BO2000)插件-using CAST-256-bit encryption Back Orifice 2000 (BO2000 ) plugin

RC5 algorithm document

sha-1算法是目前常用的数字摘要算法，可以为任意长度的数据生成20字节的数字摘要，是数字签名的基础-sha-1 algorithm is commonly used in digital digest algorithm, for arbitrary length of 20 bytes of data generation digital summary is the basis of digital signatures

大整数运算的实现-large integer arithmetic Implementation

ECC的C++源码，非常简单而且容易理解-ECC

ITU SS7 AIF message format and codes part 1