自动配速的SATA硬盘加密桥的设计与实现  

Disk-Encrypt Design Based on SATA Interface With Automatic Speed-Configuration

作　　者：万晨庚 李树国[1] 

机构地区：[1]清华大学微电子所,北京100084

出　　处：《微电子学与计算机》2014年第9期24-27,共4页Microelectronics & Computer

基　　金：国家"八六三"计划(2012AA012402);国家自然科学基金(61073173);清华大学自主研发计划(2011Z05116)

摘　　要：硬盘加密是大容量安全存储的核心问题.基于SATA接口,提出一种桥接方式实现的硬盘加密桥设计.该设计实现了加密算法可配置,可实现对称加密的SM4和AES等算法,并能够自动检测并匹配SATA1.0与SATA2.0两种速度.重点介绍了SM4算法的实现.FPGA验证表明,计算机可以通过硬盘加密桥识别及读写硬盘.用WIN7系统的CrystalDiskMark硬盘测速软件对硬盘读写进行测速,结果表明加入硬盘桥后读速率在242MB/s以上,写速率约为160MB/s.Disk encryption is the core problem of large capacity safety storage.Based on SATA Interface,the paper proposes a design by building a SATA interface bridge.The design has configurable encryption-core which supports SM4 and AES.The paper mainly introduces the implement of SM4.The bridge supports SATA1.0 and SATA2.0 with automatic speed-configuration.FPGA testifies that,disk can be correctly recognized with the bridge.Speed test done by using the software CrystalDiskMark shows that read speed is above 242MB/s with the bridge in the WIN7 system.

关 键 词：SATA硬盘加密桥 自动配速 SM4 AES FPGA 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]