The scheme has high security class and efficiency used in signature.
实践证明该体制具有较高的安全性，而且签名效率也较高。
The whole system has high security, strong independence and lower cost.
整个系统安全性高、独立性强、开发成本较低。
As the watermarking is of chaotic characteristic, it has high security.
该水印具有混沌的特征，安全性也比较高。
Hardware encryption has high security because this method can relieve burden of MPU and has physical protection layer.
硬件加密可减轻微处理器的负担，且具有物理保护，安全性较高。
Therefore, the utility model has high security, high thermal efficiency, significant energy saving effect and low heat inertia.
本实用新型具有高安全性、热效率高、节能效果显著、低热惯性。
Owing to the use of fully mature digital video broadcast technology, the scheme has high security, simple framework, and low cost.
由于充分利用了成熟的数字视频广播技术，此分级授权收视系统安全性很高，系统构建简单，且成本比较适中。
Then a chaotic stream cipher based on the pseudo-random number generator is designed, which has high security, low cost and easy realization proved by some experiments.
接着我们设计一种基于该伪随机数产生器的流密码。实验结果证明，该流密码具有安全性高、代价低和实现特性好的特点。
Then a chaotic stream cipher based on the pseudo-random number generator is designed, which has high security, low cost and easy realization proved by some experiments.
接着我们设计一种基于该伪随机数产生器的流密码。实验结果证明，该流密码具有安全性高、代价低和实现特性好的特点。
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