本文重点对硬件加密技术进行了综述，介绍了硬件加密技术的优缺点、种类及发展趋势。
It focuses on the hardware-based encryption techniques are reviewed to introduce the advantages and disadvantages of hardware encryption technology; types and development.
硬件加密技术解决了软件加密在加密运算时的密钥出现在内存和占用系统资源两个不足之处。
Hardware encryption technology solves the problem that the software encryption may cause the key computed in the memory or system resources occupied.
而存储设备生产厂商则是寻求基于存储设备硬件的解决方案，基本的做法是依靠硬件加密技术。
The storage device manufacturers are seeking storage hardware-based solutions, the basic approach is to rely on hardware encryption.
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