本文介绍了PGP和信息隐藏技术这两种典型的加密方式，并提出了一种基于这两种加密方式的组合加密方法。
Two classical encryption methods PGP and information hiding technology are introduced. An approach to encrypt information based on these two methods is proposed at the same time.
WSS规范提供通过对主体、标题、附件或其任意组合（或部分）进行加密和/或数字签名保护消息的方法。
The WSS specification provides a means to protect a message by encrypting and/or digitally signing a body, a header, an attachment, or any combination (or parts) of these.
对软件加密解密基本技术和方法分析的基础上 ，提出组合加密防拷贝 ，动态密钥读取防仿真两种方法。
This paper discussed the basic technique of setting security key and produced group security key to anti-copy and dynamic reading security key to anti digital simulation.
对软件加密解密基本技术和方法分析的基础上 ，提出组合加密防拷贝 ，动态密钥读取防仿真两种方法。
This paper discussed the basic technique of setting security key and produced group security key to anti-copy and dynamic reading security key to anti digital simulation.
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