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    • 5. 发明申请
    • METHOD AND APPARATUS FOR IMPLEMENTING SECURE AND SELECTIVELY DENIABLE FILE STORAGE
    • 实施安全和可选文件存储的方法和装置
    • WO2010031894A1
    • 2010-03-25
    • PCT/FI2009/000035
    • 2009-03-16
    • ENVAULT CORPORATION OYSAARINEN, Markku-JuhaniOLLIKAINEN, Ville
    • SAARINEN, Markku-JuhaniOLLIKAINEN, Ville
    • G06F21/00G06F12/14H04L9/08
    • G06F15/167G06F3/0623G06F3/0631G06F3/0679G06F21/78H04L9/0643H04L2209/60
    • The invention concerns a method for writing data to a memory device arrangement comprising a first and a second memory device in which the first memory device comprises data blocks numbered with block numbers and the second memory device comprises at least one reference calculated from a data block digest and its physical block number. The invention is characterized in that it comprises the following steps: calculating the digest from at least part of the data block content, receiving at least one physical block number, to which the data block contents in the first memory device is stored, encrypting the data block content, storing the data block content to the first memory device to the position pointed by the physical block number, and storing or issuing a command to save the digest, or a number derived from it, and at least one said physical block number to the second memory device. Also a system, a computer program and server computer in accordance to the invention are presented.
    • 本发明涉及一种将数据写入包括第一和第二存储器件的存储器件装置的方法,其中第一存储器件包括以块号编号的数据块,第二存储器件包括从数据块摘要计算的至少一个参考 及其物理块号。 本发明的特征在于它包括以下步骤:从数据块内容的至少一部分计算摘要,接收存储第一存储器装置中的数据块内容的至少一个物理块号,加密数据 块内容,将数据块内容存储到第一存储器设备到由物理块号指示的位置,以及存储或发出用于保存摘要的命令或从其导出的数字,以及至少一个所述物理块号到 第二存储器件。 还提出了根据本发明的系统,计算机程序和服务器计算机。