PROGRAM EXECUTION DEVICE
    2.
    发明申请
    PROGRAM EXECUTION DEVICE 有权
    程序执行装置

    公开(公告)号:US20090150685A1

    公开(公告)日:2009-06-11

    申请号:US12367076

    申请日:2009-02-06

    IPC分类号: G06F12/14

    摘要: A program execution device capable of protecting a program against unauthorized analysis and alteration is provided. The program execution device includes an execution unit, a first protection unit, and a second protection unit. The execution unit executes a first program and a second program, and is connected with an external device that is capable of controlling the execution. The first protection unit disconnects the execution unit from the external device while the execution unit is executing the first program. The second protection unit protects the first program while the execution unit is executing the second program.

    摘要翻译: 提供了能够保护程序免受未经授权的分析和改变的程序执行装置。 程序执行装置包括执行单元,第一保护单元和第二保护单元。 执行单元执行第一程序和第二程序,并且与能够控制执行的外部设备连接。 第一个保护单元在执行单元执行第一个程序时将执行单元与外部设备断开连接。 第二保护单元在执行单元执行第二程序时保护第一程序。

    PROGRAM EXECUTION DEVICE
    3.
    发明申请
    PROGRAM EXECUTION DEVICE 有权
    程序执行装置

    公开(公告)号:US20120198243A1

    公开(公告)日:2012-08-02

    申请号:US13441261

    申请日:2012-04-06

    IPC分类号: G06F21/00 G06F21/24 G06F12/14

    摘要: A program execution device capable of protecting a program against unauthorized analysis and alteration is provided. The program execution device includes an execution unit, a first protection unit, and a second protection unit. The execution unit executes a first program and a second program, and is connected with an external device that is capable of controlling the execution. The first protection unit disconnects the execution unit from the external device while the execution unit is executing the first program. The second protection unit protects the first program while the execution unit is executing the second program.

    摘要翻译: 提供了能够保护程序免受未经授权的分析和改变的程序执行装置。 程序执行装置包括执行单元,第一保护单元和第二保护单元。 执行单元执行第一程序和第二程序,并且与能够控制执行的外部设备连接。 第一个保护单元在执行单元执行第一个程序时将执行单元与外部设备断开连接。 第二保护单元在执行单元执行第二程序时保护第一程序。

    MEMORY CONTROL APPARATUS, CONTENT PLAYBACK APPARATUS, CONTROL METHOD AND RECORDING MEDIUM
    4.
    发明申请
    MEMORY CONTROL APPARATUS, CONTENT PLAYBACK APPARATUS, CONTROL METHOD AND RECORDING MEDIUM 有权
    内存控制装置,内容播放装置,控制方法和记录介质

    公开(公告)号:US20090313425A1

    公开(公告)日:2009-12-17

    申请号:US12484627

    申请日:2009-06-15

    IPC分类号: G06F12/00 G06F12/14 G06F12/02

    摘要: A data storage apparatus is provided that realizes a measure against deterioration of a flash memory in which integrity check data is stored. A content playback apparatus (1000) uses a hash value of playback history information as integrity check data (confirmation data) for confirming whether the playback history information has been falsified. A first address calculation unit (1004) and a second address calculation unit (1006) determine a read-in address and a storage destination address for the integrity check data, with use of the hash value. Accordingly, the storage destination addresses can be diffused, thus enabling preventing deterioration of the flash memory.

    摘要翻译: 提供了一种实现针对存储完整性检查数据的闪存的劣化的措施的数据存储装置。 内容再现装置(1000)使用回放历史信息的哈希值作为确认回放历史信息是否被伪造的完整性检查数据(确认数据)。 第一地址计算单元(1004)和第二地址计算单元(1006)利用散列值确定完整性检查数据的读入地址和存储目的地地址。 因此,存储目的地地址可以被扩散,从而能够防止闪存的劣化。

    INFORMATION SECURITY DEVICE AND COUNTER CONTROL METHOD
    5.
    发明申请
    INFORMATION SECURITY DEVICE AND COUNTER CONTROL METHOD 审中-公开
    信息安全设备和计数器控制方法

    公开(公告)号:US20090019551A1

    公开(公告)日:2009-01-15

    申请号:US12146269

    申请日:2008-06-25

    IPC分类号: H04L9/32 H04L9/08

    摘要: A method is provided for flexibly setting a shared counter shared by a plurality of security modules sharing a counter in tree structures, while curbing the amount of secure memory used. The shared counter is realized by a first counter group having a tree structure managed by a first secure module and a second counter group having a tree structure managed by a second secure module sharing a node in the tree structure of the first counter group and a node in the tree structure of the second counter group. The method of sharing using tree structures enables flexibly addition, deletion and access restriction setting of modules that use the shared counter.

    摘要翻译: 提供了一种方法,用于灵活地设置由树结构共享计数器的多个安全模块共享的共享计数器,同时遏制所使用的安全存储器的数量。 共享计数器由具有由第一安全模块管理的树结构的第一计数器组和具有由共享第一计数器组的树结构中的节点的第二安全模块管理的树结构的第二计数器组实现,并且节点 在第二个计数器组的树结构中。 使用树结构共享的方法使得能够灵活地添加,删除和访问限制设置使用共享计数器的模块。

    METHOD AND DEVICE FOR SPEEDING UP KEY USE IN KEY MANAGEMENT SOFTWARE WITH TREE STRUCTURE
    6.
    发明申请
    METHOD AND DEVICE FOR SPEEDING UP KEY USE IN KEY MANAGEMENT SOFTWARE WITH TREE STRUCTURE 有权
    用于树木结构的关键管理软件中的关键用途的方法和装置

    公开(公告)号:US20090046862A1

    公开(公告)日:2009-02-19

    申请号:US12146255

    申请日:2008-06-25

    IPC分类号: H04L9/06

    CPC分类号: H04L9/0836 H04L9/088

    摘要: In the key management software having a key database with a tree structure, a high-speed data encryption/decryption process is achieved by changing the tree structure without reducing the security strength when deleting or adding a key from/to the tree structure. The key management software 135 having the key database 146 with the tree structure, when deleting or adding a key from/to the tree structure, refers to the encryption strength comparison table 170 and the process time comparison table 180 to change the tree structure without reducing the security strength. This reduces the number of times an encrypted key is loaded onto the encryption/decryption processing device 134 during the data encryption/decryption process, thus achieving a high-speed data encryption/decryption.

    摘要翻译: 在具有树结构的密钥数据库的密钥管理软件中,通过在从树结构中删除或添加密钥时改变树结构而不降低安全强度来实现高速数据加密/解密处理。 具有树结构的密钥数据库146的密钥管理软件135当从树结构中删除或添加密钥时,参考加密强度比较表170和处理时间比较表180来改变树结构而不减少 安全实力。 这减少了在数据加密/解密处理期间加密密钥加载到加密/解密处理设备134上的次数,从而实现了高速数据加密/解密。