Not of patent application, without droit, what be used by other random is jural do not protect without proclaimed in writing.
未申请专利的、没有所有权，被他人任意使用的法律上不没有明文保护。
As for key management, it USES the technology of real time computing key to prevent hostility people analyzing proclaimed in writing.
对于密钥管理采用了实时计算密钥的技术，密钥滚动可以有效防止恶意人员对明文进行统计分析。
The embedment of the text proclaimed in writing in elliptical public-key encryption system is studied theoretically and a general algorithm is designed.
对椭圆公钥密码体制中的明文嵌入进行了理论研究，设计了一个通用的算法。
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