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公开(公告)号:US08429499B2
公开(公告)日:2013-04-23
申请号:US12962545
申请日:2010-12-07
申请人: Kei Akiyama , Yasuhiro Takase , Noritoshi Shinto
发明人: Kei Akiyama , Yasuhiro Takase , Noritoshi Shinto
IPC分类号: G11C29/00
CPC分类号: G11B20/00086 , G11B20/0021 , G11B20/1426 , G11B20/1833 , G11B2020/1843 , G11B2220/2516
摘要: A disk drive for encrypting user data. A motor configured to rotate a disk which stores encoded user data and an encryption flag which has not been encoded. An encoder/decoder processor configured to encode the user data that is written into the disk without encoding the encryption flag, and decodes the user data that is read out from the disk without decoding the encryption flag that is read out from the disk. An encryption processor configured to encrypt the user data at the encryption flag, wherein the encryption flag indicates encryption before the encoder/decoder processor starts encoding, and wherein the encryption processor obtains an encryption flag read out from the disk before the encoder/decoder processor completes decoding of the user data read out from the disk, commencing decryption of decoded data where the encryption flag indicates encryption before decoding of the user data is complete.
摘要翻译: 用于加密用户数据的磁盘驱动器。 配置为旋转存储编码用户数据的盘和未被编码的加密标志的马达。 编码器/解码器处理器,其被配置为对写入到盘中的用户数据进行编码而不对加密标记进行编码,并对从盘读出的用户数据进行解码,而不解码从盘读出的加密标志。 一种加密处理器,被配置为以加密标记对用户数据进行加密,其中加密标志在编码器/解码器处理器开始编码之前指示加密,并且其中加密处理器在编码器/解码器处理器完成之前获得从盘读出的加密标志 对从盘读出的用户数据进行解码,完成对解码数据的解密,其中加密标志指示用户数据解码之前的加密。