方案能够足够灵活的处理一个层级系统中动态存取控制问题。
We propose a new cryptographic key dynamic access scheme with time-constraint and can solve the problems we mentioned above.
在用户层次结构的动态存取控制问题上，本文提出了一种安全有效的方案。
In the problem of dynamic access control, we present a secure and efficient scheme, which is based on discrete logarithms and polynomial interpolation.
所述存储器控制器耦接一动态随机存取存储器。
The memory controller is coupled with a dynamic random access memory.
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