Method and system for recovering and validating cryptographically signed digital data
    1.
    发明公开
    Method and system for recovering and validating cryptographically signed digital data 有权
    方法和系统使用加密签名的数字数据的恢复和验证

    公开(公告)号:EP1243999A2

    公开(公告)日:2002-09-25

    申请号:EP01109952.0

    申请日:2001-04-24

    申请人: Hitachi, Ltd.

    IPC分类号: G06F1/00

    摘要: According to the present invention, techniques, including a method and system, for restoring and/or validating data and/or associated signature log entries are provided. One embodiment of the present invention provides a method for validating a restored message, having an entry generated in a signature log for a message, where the entry includes cryptographic information associated with the message; Next, when message is lost, the restored message is generated responsive to a request; and the restored message is validated using the signature log. In another embodiment a method for validating a selected log entry by using a signature log having a plurality of recorded log entries is provided. The method includes: computing a cryptographic value for the selected log entry; and determining if the cryptographic value is part of another recorded log entry.

    摘要翻译: 被提供。根据本发明,技术,包括的方法和系统,用于恢复和/或验证数据和/或相关联的签名的日志条目。 本发明的一个实施例提供用于验证恢复消息时,具有在签名日志消息,其中,所述条目包括与所述消息相关联的加密信息生成的条目的方法; 接下来,当消息丢失,则产生响应于请求所恢复的消息; 和恢复的消息是使用签名的日志验证。 在另一个实施方案提供了一种用于验证通过使用具有记录的日志条目的多个签名的日志一个选择的日志条目的方法。 该方法包括:计算用于所选择的日志条目的密码值; 如果密码值的另一部分确定性采矿记录的日志条目。

    Automatic trading method and apparatus
    5.
    发明公开
    Automatic trading method and apparatus 失效
    自动化Geschäftsverfahrenund Vorrichtung。

    公开(公告)号:EP0416482A2

    公开(公告)日:1991-03-13

    申请号:EP90116794.0

    申请日:1990-08-31

    申请人: HITACHI, LTD.

    IPC分类号: G07F7/10 G06F19/00 G06F1/00

    摘要: A method and system is provided for automatically trading of items such as stocks with improved security. After receiving an initial identifying contact from a contractor, a trader will contact the contractor with a different communication device from the initial contact with confirmation information that was stored in association with a contractor first identifying code. The contractor must then reconfirm the fairness of the trading data using at least a portion of the confirmation information.

    摘要翻译: 提供了一种方法和系统,用于自动交易诸如具有改进的安全性的股票的物品。 在收到承包商的初始识别联系人之后,交易者将与承包商联系,与不同的通信设备与初始联系人确认信息联系起来,确认信息与承包商首先识别代码相关联。 承包商必须使用至少一部分确认信息重新确认交易数据的公平性。

    Print management system
    8.
    发明公开
    Print management system 审中-公开
    Druckmanagement-系统

    公开(公告)号:EP1585303A2

    公开(公告)日:2005-10-12

    申请号:EP04020558.5

    申请日:2004-08-30

    申请人: Hitachi, Ltd.

    IPC分类号: H04N1/00

    摘要: It has been impossible to suppress the copy of tickets which are printed on ordinary paper sheets.
    A client is provided with: a print control unit which prints a designated number of tickets.
    The acceptance server is provided with: a printed state verification unit which verifies the truth of the information on the state of printed matters; and a management unit which manages the type of a printer. Moreover, an issue server is provided with: a printing test data generating unit; a ticket generating unit which generates ticket data on the basis of the type of the printer; and a license data issuing unit which issues license data so as to instruct the number of ticket.

    摘要翻译: 打印在普通纸张上的票据的复印件是不可能的。 客户端提供有:打印指定数量的票据的打印控制单元。 接受服务器具有:印刷状态验证单元,其验证关于印刷品状态的信息的真实性; 以及管理打印机的类型的管理单元。 此外,问题服务器提供有:打印测试数据生成单元; 票据生成单元,其基于打印机的类型生成票据数据; 以及许可证数据发布单元,其发出许可证数据以指示票数。

    Trusted computer system
    9.
    发明公开
    Trusted computer system 审中-公开
    Gesichertes Rechnersystem

    公开(公告)号:EP1253502A2

    公开(公告)日:2002-10-30

    申请号:EP02003596.0

    申请日:2002-02-15

    申请人: Hitachi, Ltd.

    IPC分类号: G06F1/00

    摘要: Techniques of improving the safety of an information processing system (1001) at low cost are provided, the information processing system having an OS provided with an access control function based upon discretionary access control for preventing illegal accesses to files. A method and apparatus for providing the information processing system with functions and areas (1007) usable only by a specific user different from a system administrator. The areas are provided with an access control function in order to prevent the access control function from being tampered.

    摘要翻译: 提供了以低成本提高信息处理系统(1001)的安全性的技术,该信息处理系统具有基于用于防止非法访问文件的任意访问控制的具有访问控制功能的OS。 一种用于向信息处理系统提供功能和区域(1007)的方法和装置,所述功能和区域(1007)仅可由不同于系统管理员的特定用户使用。 这些区域具有访问控制功能,以防止访问控制功能被篡改。