DigitalSignature

说明：  EXE文件加密码,ASP压缩处理.比较实用,大家拿去(EXE File Password, ASP compression. More practical, we try to spend)

图像加密与密写技术，很强悍的！现在很需要这种东西的哦(密写哦！！！！！！)

支持加密Sqllite库，vs2008 + sqlite3 + sqlcipher,测试可用(Supports encryption Sqllite library, VS2008+ SQLite3+ sqlcipher, testing available)

另一种公开密钥加密算法的Pascal实现和例子。实现了签名和确认- Another kind of public key encryption algorithm Pascal realization and example. Realized has signed and confirmed

加密算法。-Encryption algorithm.

UNICODE编码介绍-coding introduced UNICODE

Proguard是强大的Java字节码混淆器，含有源代码，可以根据自己需求修改编译。满足自身需求。 也可以作为爱好者自学的好材料。

穷举型密码破译器。可以自定义词典，多线程。visual c++6.0 xp/2-exhaustive type code-breaking device. You can define Dictionary, multithreading. Visual c 6.0 xp/2

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.)

软件有限次加密，对软件的使用次数进行限制-finite encryption software, software usage restrictions