Part two is general analyses on Electronic Authentication Service.
电子认证服务概论.
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Euripides: Do you have a name for this authentication service?
这个认证服务有名字 吗 ?
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User authentication service has become an important component of network security, especially over open network environment.
用户认证服务是确保开放式网络安全的重要组件之一.
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