另外，提出了操作系统针对ICMP协议的系统类型指纹库，从而为今后程序的升级和开发维护提供了保证。
In addition, an OS fingerprinting type base of ICMP protocol is brought forward to provide a guarantee for procedure's upgrading and maintenance in the future.
多播、水印、指纹的结合是多播安全的一个重要方面，相关的协议设计具有一定的难度。
The integration of multicast, digital watermarking and digital fingerprinting is an important aspect of multicast security, the related protocol design is difficult.
设计了一种基于指纹加密技术的网络身份认证协议。
The contents of the paper are listed as follow:1. Design an authentication protocol based on fingerprint encryption.
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