Encrypting apparatus
    1.
    发明申请
    Encrypting apparatus 审中-公开
    加密设备

    公开(公告)号:US20110176673A1

    公开(公告)日:2011-07-21

    申请号:US13064460

    申请日:2011-03-25

    IPC分类号: H04L9/28

    摘要: An encrypting apparatus includes a digest part using a SHA-2 algorithm of which a basic unit of operation is 32*Y (Y=1 or 2) bits. The digest part includes a shift register including a series of registers, and a predetermined number of adders performing an addition operation based on data stored in the shift register. The shift register includes a (32*Y)/X-bit register, where X=2k (k is an integer such that 1≦k≦4 when Y=1 and 1≦k≦5 when Y=2). Each of the adders has a data width of (32*Y)/X bits and performs the addition operation in each cycle in which the data stored in the shift register is shifted between the registers with the data width of (32*Y)/X bits.

    摘要翻译: 加密装置包括使用SHA-2算法的摘要部分,其基本操作单元是32×Y(Y = 1或2)位。 摘要部分包括一个包括一系列寄存器的移位寄存器和一个预定数量的加法器,它们基于存储在移位寄存器中的数据执行加法运算。 移位寄存器包括一个(32 * Y)/ X位寄存器,其中X = 2k(k是当Y = 1和1≦̸ k≦̸ 5,当Y = 2时,1≦̸ k≦̸ 4的整数)。 每个加法器的数据宽度为(32×Y)/ X位,并且在存储在移位寄存器中的数据在数据宽度为(32 * Y)/ X位的寄存器之间移位的每个周期中执行相加操作, X位。

    Method, apparatus, and computer program for managing access to documents
    2.
    发明授权
    Method, apparatus, and computer program for managing access to documents 有权
    用于管理文件访问的方法,设备和计算机程序

    公开(公告)号:US07966644B2

    公开(公告)日:2011-06-21

    申请号:US11543313

    申请日:2006-10-05

    IPC分类号: H04L9/32 G06F21/22

    摘要: A computer program, apparatus, and method for managing access to documents, capable of identifying the exact events of document access on the basis of given access logs even when access policies are modified in the middle of operations. Upon receipt of an access policy setup request from a first client, an access policy manager adds a new access policy to the access policy database or modifies an existing access policy in an access policy database according to the request. A policy log collector then stores the records of such a new access policy or modified existing access policy in a policy log database. Afterwards an access log collector receives an access log for the document 5 from the second client 3 and saves it in the access log database 1c. When a third client issues a log request with a specific search keyword, a log searcher retrieves relevant policy log records and access log records that match with the specified search keyword.

    摘要翻译: 一种用于管理对文档的访问的计算机程序,装置和方法,其能够基于给定的访问日志识别文档访问的确切事件,即使在操作中修改访问策略时。 在接收到来自第一客户端的访问策略设置请求时,访问策略管理器将新的访问策略添加到访问策略数据库,或者根据请求修改访问策略数据库中的现有访问策略。 策略日志收集器然后将策略日志数据库中的这种新的访问策略或修改的现有访问策略的记录存储。 之后,访问日志收集器从第二客户端3接收文档5的访问日志,并将其保存在访问日志数据库1c中。 当第三个客户端发出具有特定搜索关键字的日志请求时,日志搜索器将检索相关策略日志记录并访问与指定搜索关键字匹配的日志记录。

    Personal identification terminal and method having selectable identification means or identification levels
    3.
    发明授权
    Personal identification terminal and method having selectable identification means or identification levels 失效
    具有可选择识别装置或识别级别的个人识别终端和方法

    公开(公告)号:US07147150B2

    公开(公告)日:2006-12-12

    申请号:US10720085

    申请日:2003-11-25

    IPC分类号: G06K5/00

    摘要: A personal identification terminal includes a plurality of identification means or a plurality of identification levels that are selectable for use, and means for selecting one of the plural identification means or one of the identification levels in accordance with identification means/level setting information that is received from a server every time when receiving a request for identification from the server. The personal identification terminal sends used means/level information that indicates one of the identification means or one of the identification levels that was used for the real identification back to the server in a format that enables detection of an alteration thereof together with a result of the identification.

    摘要翻译: 个人识别终端包括可选择使用的多个识别装置或多个识别级别,以及用于根据接收到的识别装置/级别设置信息来选择多个识别装置中的一个识别装置或识别等级之一的装置 每当从服务器接收到身份验证请求时,都会从服务器发送。 个人识别终端以能够检测其变化的格式以及与其相关联的结果一起发送指示识别装置之一或用于真实识别的识别级别中的一个的使用的装置/级别信息 识别。

    Conference support system with user operation rights and control within the conference
    4.
    发明授权
    Conference support system with user operation rights and control within the conference 失效
    会议支持系统,具有用户操作权限和会议控制权

    公开(公告)号:US06266691B1

    公开(公告)日:2001-07-24

    申请号:US08759897

    申请日:1996-12-03

    IPC分类号: G06F1300

    CPC分类号: G06Q10/10

    摘要: An electronic conference support system having a structure in which one main common information processing apparatus having a common display unit having a size sufficiently large for attendants to commonly look and some personal information processing apparatuses for permitting each attendant to exclusively create, display and edit information adjacent to each attendant are connected to one another to form a network communication structure through a data communication passage. When a certain attendant acquires an operation right, an information input space is displayed on the personal display unit of the attendant while permitting the attendant to input information. Information inputted to the information input space is, after completed and as an information object, displayed on the common display unit of the common information processing apparatus and the personal display units of all of the personal information processing apparatuses. The attendant of the conference is enabled to easily input information and other attendants who look the attendant's operation are enabled to be free from adverse stimulus.

    摘要翻译: 一种电子会议支持系统,具有如下结构,其中一个主公共信息处理装置具有一个共同的显示单元,该公共显示单元的尺寸足够大以使得演员能够共同观看,并且一些个人信息处理设备允许每个服务员独占地创建,显示和编辑相邻的信息 对每个服务员彼此连接以通过数据通信通道形成网络通信结构。 当某个服务员获取操作权限时,在允许话务员输入信息的同时,在话务员的个人显示单元上显示信息输入空间。 输入到信息输入空间的信息在完成之后并作为信息对象显示在公共信息处理设备的公共显示单元和所有个人信息处理设备的个人显示单元上。 会议的服务员能够轻松地输入信息,并且其他参与者可以免除不利的刺激。

    ENCRYPTION APPARATUS HAVING COMMON KEY ENCRYPTION FUNCTION AND EMBEDDED APPARATUS
    5.
    发明申请
    ENCRYPTION APPARATUS HAVING COMMON KEY ENCRYPTION FUNCTION AND EMBEDDED APPARATUS 有权
    具有普通密钥加密功能和嵌入式设备的加密设备

    公开(公告)号:US20110013769A1

    公开(公告)日:2011-01-20

    申请号:US12889096

    申请日:2010-09-23

    IPC分类号: H04L9/28

    摘要: A common key block encryption apparatus for performing a nonlinear transformation with a multiplication executed in a binary field or a composite field includes a computing unit to execute a computation other than the nonlinear transformation with fixed value masked input data obtained by XORing input data with a fixed mask value, an XOR operation circuit to transform all input data into fixed value masked input data by XORing the input data with a fixed mask value and to transform the data into random value masked input data by XORing the input data with a random mask value in the multiplication, a multiplier to execute a multiplication based on the random value masked input data output from the XOR operation circuit, and a random value mask-to-fixed mask value transformation circuit to again transform the random value masked output data into fixed value masked output data and to output the data.

    摘要翻译: 用于通过在二进制字段或复合字段中执行的乘法执行非线性变换的公共密钥块加密装置包括:计算单元,用于执行非线性变换以外的计算,该固定值掩码输入数据通过将具有固定值的输入数据进行异或 掩模值,XOR运算电路,通过用固定的掩码值对输入数据进行异或,将所有输入数据变换为固定值掩码输入数据,并通过将输入数据以随机掩码值进行异或来将数据变换为随机值屏蔽输入数据 乘法,乘法器,用于根据从异或运算电路输出的随机值屏蔽输入数据执行乘法,以及随机值掩码到固定掩码值变换电路,以将随机值屏蔽输出数据再次转换为固定值掩码 输出数据并输出数据。

    SWAP CIRCUIT FOR COMMON KEY BLOCK CIPHER AND ENCRYPTION/DECRYPTION CIRCUIT INCLUDING THE SAME
    6.
    发明申请
    SWAP CIRCUIT FOR COMMON KEY BLOCK CIPHER AND ENCRYPTION/DECRYPTION CIRCUIT INCLUDING THE SAME 审中-公开
    用于常用键盘盖的切换电路和包括其的加密/分解电路

    公开(公告)号:US20100111295A1

    公开(公告)日:2010-05-06

    申请号:US12580462

    申请日:2009-10-16

    IPC分类号: H04L9/28

    CPC分类号: H04L9/0637 H04L2209/12

    摘要: An encryption/decryption circuit includes a swap circuit for outputting each of text data and initialization vector data which are input from an input terminal to either a first or second output terminal in accordance with one of modes of operation, an encryption/decryption processing unit to which one of the text data and the initialization vector data are input from the first output terminal and which performs encryption processing and decryption processing on the data, and an exclusive OR processing unit to which another one of the initialization vector data and the text data are input from the second output terminal and which performs an exclusive OR operation on the data.

    摘要翻译: 加密/解密电路包括交换电路,用于根据操作模式之一输出从输入端输入到第一或第二输出端的文本数据和初始化矢量数据;加密/解密处理单元, 文本数据和初始化矢量数据中的哪一个从第一输出端输入,并且对该数据进行加密处理和解密处理;以及异或处理单元,其中另一个初始化向量数据和文本数据是 从第二输出端子输入并对数据执行异或运算。

    Computer-readable recording medium storing access rights management program, access rights management apparatus, and access rights management method
    7.
    发明申请
    Computer-readable recording medium storing access rights management program, access rights management apparatus, and access rights management method 有权
    存储访问权限管理程序,访问权限管理装置和访问权限管理方法的计算机可读记录介质

    公开(公告)号:US20080005779A1

    公开(公告)日:2008-01-03

    申请号:US11595626

    申请日:2006-11-09

    IPC分类号: H04L9/00

    摘要: A computer-readable recording medium storing an access rights management program which is capable of safely managing the use of an electronic document with ease and efficiency. An access policy-storing device stores a first access policy containing information on a first distributee to which the electronic document is distributed, and information on second distributees, which is indicative of a range within which the first distributes is permitted to distribute the electronic document, as well as information on use rights that permit the second distributees to use the electronic document with a defined scope of authority. A storage device stores a distribution target indicative of the second distributees. When a distributes specifying request for permission to grant the use rights to a specific distributes is received from the first distributee, an access policy-confirming device refers to the distribution target to confirm whether or not the specific distributes is included in the second distributees. A registration device registers a second access policy associating the specific distributes with the information on the use rights, in said access policy-storing device. A use rights-confirming device refers to the second access policy to thereby permit the specific distributes to use the electronic document using the use rights, when a use request for permission of use of the electronic document is received from the specific distributes.

    摘要翻译: 一种存储访问权限管理程序的计算机可读记录介质,其能够以便利和高效地安全地管理电子文档的使用。 访问策略存储装置存储包含关于分发电子文档的第一分发者的信息的第一访问策略和指示第一分发被允许分发电子文档的范围的关于第二分发者的信息, 以及允许第二批次人员使用具有规定的权限范围的电子文件的使用权信息。 存储装置存储指示第二分发者的分发目标。 当从第一分发者接收到向特定分发者分配许可授权许可的指定请求时,访问策略确认装置参考分发目标来确认特定分发是否包括在第二分发者中。 在所述访问策略存储设备中,注册设备将关联所述特定分发的第二访问策略与所述使用权限的信息相关联。 使用权确认装置是指当从特定分发者接收到使用电子文档的使用请求时,使用权确认装置是指第二访问策略,从而允许特定分发者使用使用权利使用电子文档。

    CRYPTOGRAPHIC OPERATION APPARATUS
    8.
    发明申请
    CRYPTOGRAPHIC OPERATION APPARATUS 审中-公开
    CRYPTOGRAPHIC操作装置

    公开(公告)号:US20080181395A1

    公开(公告)日:2008-07-31

    申请号:US11948447

    申请日:2007-11-30

    IPC分类号: H04L9/28

    CPC分类号: H04L9/0631 H04L2209/122

    摘要: In a cryptographic operation apparatus, the result of an encryption process, or decryption process, is obtained by disposing two operational circuits in parallel, each comprising four multiplying devices and an exclusive-OR device, and by processing an input data string in two cycles; or by processing an input data string by a single operational circuit in four cycles.

    摘要翻译: 在加密操作装置中,通过并行设置两个运算电路,每个包括四个乘法装置和异或装置,并且通过以两个周期处理输入数据串,获得加密处理或解密处理的结果。 或通过在四个周期内由单个操作电路处理输入数据串。

    Data protection system, data preparation device, and data working device
    9.
    发明授权
    Data protection system, data preparation device, and data working device 失效
    数据保护系统,数据准备装置和数据工作装置

    公开(公告)号:US06829592B1

    公开(公告)日:2004-12-07

    申请号:US09000924

    申请日:1997-12-30

    IPC分类号: G06F1721

    摘要: When a user works data required for allowance for the use thereof, the work processing is carried out by utilizing an exclusive work processing device. Thereafter, only the data of work information indicating what kind of working has been made to the original data (for example, differential static image data indicating a difference between the original static image required for allowance for the use and the static image after having been worked) is stored, whereby the use without permission of the data is prevented.

    摘要翻译: 当用户工作所需的数据用于允许使用时,通过利用排他性处理装置来执行工作处理。 此后,仅仅是指示对原始数据进行什么样的工作的工作信息的数据(例如,指示在使用中允许使用的原始静态图像与被处理后的静态图像之间的差异的差分静态图像数据 ),从而防止数据允许的使用。

    Encrypting apparatus for common key cipher
    10.
    发明授权
    Encrypting apparatus for common key cipher 有权
    公用密钥密码加密设备

    公开(公告)号:US08218762B2

    公开(公告)日:2012-07-10

    申请号:US11941663

    申请日:2007-11-16

    摘要: The first route selection device re-arrays a plurality of extended key mask values at random according to the value of a random number generated by a random number generation device. An extended key operation device generates an exclusive logical OR of a plurality of the re-arrayed extended key mask values, a data string representing extended key and an input data string. The second route selection device re-arrays the data string of the exclusive logical OR by performing a re-array conversely with the first route selection device according to the value of the random number. A non-linear conversion device applies non-linear conversion to the re-arrayed data string and outputs a data string masked by a plurality of non-linear conversion mask values. The third route selection device re-arrays the masked data string by performing the same re-array as the first route selection device according to the value of the random number.

    摘要翻译: 第一路由选择装置根据由随机数生成装置生成的随机数的值,随机地重新排列多个扩展密钥掩码值。 扩展密钥操作装置生成多个重新排列的扩展密钥掩码值的异或逻辑,表示扩展密钥的数据串和输入数据串。 第二路由选择装置通过根据随机数的值与第一路由选择装置相反地执行重排阵列来重新排列异或逻辑OR的数据串。 非线性转换装置对重新排列的数据串应用非线性转换,并输出由多个非线性转换掩码值掩蔽的数据串。 第三路由选择装置通过根据随机数的值执行与第一路由选择装置相同的重新阵列来重新排列被掩蔽的数据串。