Electronic data storage apparatus with key management function and electronic data storage method
    1.
    发明授权
    Electronic data storage apparatus with key management function and electronic data storage method 失效
    具有密钥管理功能的电子数据存储装置和电子数据存储方法

    公开(公告)号:US06915434B1

    公开(公告)日:2005-07-05

    申请号:US09327477

    申请日:1999-06-08

    摘要: A storage apparatus includes a key management unit for managing an individual key unique to the apparatus and a common key shared with other storage apparatuses, and an encryption unit for performing an encrypting process or verifying data for performing the encrypting process on electronic data stored in the apparatus to which the unit belongs using the individual key, and performing the encrypting process or verifying the data on the electronic data transmitted to or received from another apparatus using the common key. Thus, the apparatus communicates data using an applicable common key in a local environment and a global environment, appropriately manages a key in each environment, and guarantees the security of the electronic data.

    摘要翻译: 存储装置包括用于管理该设备唯一的专用密钥的密钥管理单元和与其他存储装置共用的公用密钥,以及加密单元,用于对存储在该存储装置中的电子数据执行加密处理或验证数据进行加密处理 使用专用密钥对该单元所属的设备进行加密处理,或使用该公共密钥对从其他设备发送或接收的电子数据的数据进行验证。 因此,该装置使用本地环境和全球环境中的适用公共密钥传送数据,适当地管理每个环境中的密钥,并保证电子数据的安全性。

    Apparatus method and computer readable storage medium with recorded program for managing files with alteration preventing/detecting functions
    3.
    发明授权
    Apparatus method and computer readable storage medium with recorded program for managing files with alteration preventing/detecting functions 失效
    具有用于管理具有改变防止/检测功能的文件的记录程序的装置方法和计算机可读存储介质

    公开(公告)号:US06345360B1

    公开(公告)日:2002-02-05

    申请号:US09084955

    申请日:1998-05-28

    IPC分类号: G06F1100

    CPC分类号: G06F21/64

    摘要: By storing an authenticator created from a data file in a secure area usually unaccessible, the alteration of the data file can be detected. Furthermore, by designating the data file as a main-file and creating authenticators from various kinds of sub-files related to the main-file, the size of the secure area where the authenticators are stored, can be reduced.

    摘要翻译: 通过将从数据文件创建的认证器存储在通常不可访问的安全区域中,可以检测数据文件的改变。 此外,通过将数据文件指定为主文件并且从与主文件相关的各种子文件创建认证者,可以减少存储认证者的安全区域的大小。

    File management apparatus and method
    4.
    发明授权
    File management apparatus and method 失效
    文件管理装置和方法

    公开(公告)号:US06505213B1

    公开(公告)日:2003-01-07

    申请号:US09411647

    申请日:1999-10-04

    IPC分类号: G06F1730

    摘要: An information storage device in which a plurality of storage media having different accessibility is provided with a unit for controlling the retrieval of a portable storage medium which can be retrieved from an information storage device by selecting, at a request to retrieve the portable storage medium, the storage medium either as storing the body of a file and the data for use in accessing the file or as storing only the body of the file. The information storage device stores in and moves to a storage medium at an appropriate level the data for use in accessing a file depending on the situation.

    摘要翻译: 一种信息存储装置,其中具有不同可访问性的多个存储介质设置有用于控制可从信息存储装置检索的便携式存储介质的检索单元,所述单元可以在检索便携式存储介质的请求时, 存储介质作为存储文件的主体和用于访问文件的数据或仅存储文件的主体。 信息存储装置根据情况在合适的水平存储和移动到用于访问文件的数据的存储介质中。

    Electronic data storage apparatus, system and method
    5.
    发明授权
    Electronic data storage apparatus, system and method 失效
    电子数据存储装置,系统及方法

    公开(公告)号:US06421779B1

    公开(公告)日:2002-07-16

    申请号:US09123559

    申请日:1998-07-29

    IPC分类号: H04L900

    摘要: An electronic data storage apparatus includes a data storage unit for storing electronic data; an authentication information generation unit for generating authentication information used in detecting an amendment made to the stored electronic data; and an authentication information data output unit for outputting the electronic data after adding to the electronic data the authentication information generated for the electronic data. When an authorization unit authorizes the electronic data storage apparatus after it is determined that the specification of the electronic data satisfies a predetermined condition, or when mutual authentication is performed between electronic data storage apparatuses, the electronic data storage apparatus stores the data. Thus, the electronic data can be protected from being illegally amended or deleted, and can be safely stored in a format in which sufficient legal evidence can be maintained on the electronic data.

    摘要翻译: 电子数据存储装置包括用于存储电子数据的数据存储单元; 认证信息生成单元,用于生成用于检测对所存储的电子数据的修改的认证信息; 以及认证信息数据输出单元,用于在向电子数据添加了为电子数据生成的认证信息之后输出电子数据。 在确定电子数据的规格满足预定条件之后或在电子数据存储装置之间进行相互认证时,授权单元授权电子数据存储装置,电子数据存储装置存储数据。 因此,可以保护电子数据不被非法修改或删除,并且可以以能够对电子数据保持足够的法律证据的格式来安全地存储电子数据。

    Apparatus, method and computer readable storage medium with recorded program for managing files with alteration preventing/detecting functions
    6.
    发明申请
    Apparatus, method and computer readable storage medium with recorded program for managing files with alteration preventing/detecting functions 审中-公开
    具有用于管理具有改变防止/检测功能的文件的记录程序的装置,方法和计算机可读存储介质

    公开(公告)号:US20080271154A1

    公开(公告)日:2008-10-30

    申请号:US12153013

    申请日:2008-05-12

    IPC分类号: G06F12/14

    CPC分类号: G06F21/64

    摘要: By storing an authenticator created from a data file in a secure area usually unaccessible, the alteration of the data file can be detected. Furthermore, by designating the data file as a main-file and creating authenticators from various kinds of sub-files related to the main-file, the size of the secure area where the authenticators are stored, can be reduced.

    摘要翻译: 通过将从数据文件创建的认证器存储在通常不可访问的安全区域中,可以检测数据文件的改变。 此外,通过将数据文件指定为主文件并且从与主文件相关的各种子文件创建认证者,可以减少存储认证者的安全区域的大小。

    System and method of authentication of digital information
    8.
    发明授权
    System and method of authentication of digital information 失效
    数字信息认证系统和方法

    公开(公告)号:US06260145B1

    公开(公告)日:2001-07-10

    申请号:US08902152

    申请日:1997-07-29

    IPC分类号: H04L900

    CPC分类号: H04L9/3247 H04L2209/56

    摘要: In an authentication system for companies, a server appends suitable verification data to an electronic document to be circulated through terminal units for persons in charge. Each terminal is allocated a unique function in advance and applies it to the verification data in turn when receiving the document. Upon receipt of the document that has been circulated through the persons in charge, the server examines the function-applied value appended to the document to determine whether the document has been circulated correctly through the persons in charge, or via the correct route.

    摘要翻译: 在公司的认证系统中,服务器将合适的验证数据附加到电子文档中,以便通过负责人的终端单元进行流通。 每个终端预先分配一个独特的功能,并在接收文档时依次将其应用于验证数据。 在接收到通过负责人分发的文件之后,服务器检查附加到文档上的功能应用值,以确定文档是否已经通过负责人或正确的路由正确地传播。

    Computer system process scheduler determining and executing processes based upon changeable priorities
    9.
    发明授权
    Computer system process scheduler determining and executing processes based upon changeable priorities 失效
    计算机系统进程调度程序基于可变优先级确定和执行进程

    公开(公告)号:US06668269B1

    公开(公告)日:2003-12-23

    申请号:US09474100

    申请日:1999-12-29

    IPC分类号: G06F900

    CPC分类号: G06F9/4881

    摘要: A computer-system fixed-priority process scheduler that is supported by an operating system (OS) and establishes fixed priorities respectively corresponding to a plurality of processes to be scheduled. Further, the priorities can be changed by designation from the user processes. The process scheduler allocates a central processing unit (CPU) to executable ones of the processes in the descending order of the priorities thereof. Moreover, a user-level process scheduler is provided in a fixed-priority process scheduler space, namely, in a real-time class process scheduler space. The user-level process scheduler has a first priority of a real time class. Furthermore, the user-level process scheduler performs the scheduling of a group of other user processes, which have priorities lower than the first priority, and causes the group of such user processes to operate or run. Namely, the user-level process scheduler determines the allocation of the CPU to such user processes and requests the OS to execute such user processes.

    摘要翻译: 一种由操作系统(OS)支持的计算机系统固定优先级进程调度器,并且分别对应于要调度的多个进程来建立固定优先级。 此外,可以通过用户进程的指定来改变优先级。 进程调度器以其优先级的降序将中央处理单元(CPU)分配给可执行的一个进程。 此外,在固定优先级的处理调度器空间中,即在实时类处理调度器空间中提供用户级进程调度器。 用户级进程调度器具有实时类的第一优先级。 此外,用户级进程调度器执行具有低于第一优先级的优先级的一组其他用户进程的调度,并且使得该组用户进程操作或运行。 即,用户级进程调度器确定CPU对这些用户进程的分配,并请求OS执行这样的用户进程。

    Computer system process scheduler determining and executing processes
based upon changeable priorities

    公开(公告)号:US6108683A

    公开(公告)日:2000-08-22

    申请号:US621181

    申请日:1996-03-21

    IPC分类号: G06F9/46 G06F9/48

    CPC分类号: G06F9/4881

    摘要: A computer-system fixed-priority process scheduler that is supported by an operating system (OS) and establishes fixed priorities respectively corresponding to a plurality of processes to be scheduled. Further, the priorities can be changed by designation from the user processes. The process scheduler allocates a central processing unit (CPU) to executable ones of the processes in the descending order of the priorities thereof. Moreover, a user-level process scheduler is provided in a fixed-priority process scheduler space, namely, in a real-time class process scheduler space. The user-level process scheduler has a first priority of a real time class. Furthermore, the user-level process scheduler performs the scheduling of a group of other user processes, which have priorities lower than the first priority, and causes the group of such user processes to operate or run. Namely, the user-level process scheduler determines the allocation of the CPU to such user processes and requests the OS to execute such user processes.