Caesar

我写的一个基于MD5算法的一个简单的注册程序，实现很多程序上使用的注册认证机制-I wrote an MD5 algorithm based on a simple registration process to achieve a lot of programs used on the registration of authentication mechanisms

md5单向散列加密算法,此压缩包,包含完整调用DLL源码,PB格式.导入后直接可以应用.-md5 hash encryption algorithm, this compressed, includes a complete calling DLL source, PB format. After the direct import can apply.

这是密码学的一个常用算法rifndael算法，unix环境下的，对于学习密码学很有帮助啊。-This is a cryptographic algorithm used rifndael algorithm, unix environment. learning cryptography helpful ah.

基于VB的M5数学密码算法源码,有需要的就下载吧。(VB-based M5 mathematical algorithm source code, there is a need to download it.)

AES的一个C语言编译代码，其中密码长度为128比特(aes 128bits encrption and decrption)

存UTF8格式文件-deposit UTF8 format

OpenVPN is a robust and highly flexible tunneling application that uses all of the encryption, authentication, and certification features of the OpenSSL library to securely tunnel IP networks over a single TCP/UDP port.

用JAVA实现的AES算法，可对文件，字符串，byte数组加密，详细显示每一步加密过程,包含生成密匙,加密文件,用密钥k解密文件(AES algorithm using JAVA, may file a string, byte array encryption, the encryption process every step shown in detail, including key generation, encryption, file with the key k to decrypt the file)

扩展ASE算法delphi-expended ASE algorithm for Delphi

说明：  dsa数字签名 系统功能需求： 1.对文件进行签名，生成一个独立于原文的签名文件； 2.可以对文件进行签名，在文件后追加签名信息； 3.具有密钥管理的功能，比如密钥的生成、导入、导出； 4.可以对word文档实施操作，对word文档的内容进行签名； 5.能够比对已经实施的签名，防止进行重复的签名，以防止重放攻击； 6.可以对已经签名的文件进行单独的源文件和签名信息的分离操作。(DSA digital signature System functional requirements: 1. Sign the document and generate a signature file independent of the original text. 2. The document can be signed and the signature information can be added after the document. 3. It has the function of key management, such as key generation, import and export. 4. Word documents can be operated and the contents of Word documents can be signed. 5. Ability to compare existing signatures and prevent duplicate signatures to prevent replay attacks; 6. It is possible to separate the source file from the signature information of the signed file.)