Information security device, exponentiation device, modular exponentiation device, and elliptic curve exponentiation device
    71.
    发明授权
    Information security device, exponentiation device, modular exponentiation device, and elliptic curve exponentiation device 失效
    信息安全装置,求幂装置,模幂运算装置和椭圆曲线求幂装置

    公开(公告)号:US07167559B2

    公开(公告)日:2007-01-23

    申请号:US10105480

    申请日:2002-03-25

    IPC分类号: H04K1/00

    摘要: In an exponentiation device, a relatively large table is generated outside of a coprocessor so as to enable high-speed exponentiation to be performed using the small window method. The selection of data from the table and transfer of data to the coprocessor are conducted in parallel with a multiple-length arithmetic operation performed in the coprocessor. So as to avoid bottlenecks occurring in the data transfer between a CPU and the coprocessor, two data banks are provided in the coprocessor for storing the data to be used in the arithmetic operation. By providing two banks in the coprocessor, it is possible to use one for transferring data while data stored in the other is being used in the arithmetic operation. When the operation using the stored data has been completed, the banks are switched, and the arithmetic operation is then repeated using the newly transferred data while at the same time conducting data transfer in readiness for the following operation.

    摘要翻译: 在求幂装置中,在协处理器之外产生相对大的表,以便能够使用小窗口方法执行高速乘法运算。 从协议处理器中执行的多长度算术运算并行地进行从表中选择数据并将数据传送到协处理器。 为了避免在CPU和协处理器之间的数据传输中出现瓶颈,在协处理器中提供两个数据组,用于存储要在算术运算中使用的数据。 通过在协处理器中提供两个存储体,可以使用一个用于传送数据,而另一个存储的数据正在算术运算中使用。 当使用存储的数据的操作已经完成时,这些存储体被切换,然后使用新传送的数据重复算术运算,同时进行数据传送以备以下操作。

    RSA public key generation apparatus, RSA decryption apparatus, and RSA signature apparatus
    72.
    发明申请
    RSA public key generation apparatus, RSA decryption apparatus, and RSA signature apparatus 审中-公开
    RSA公钥生成装置,RSA解密装置以及RSA签名装置

    公开(公告)号:US20050157872A1

    公开(公告)日:2005-07-21

    申请号:US10984665

    申请日:2004-11-09

    IPC分类号: H04L9/30 H04L9/32 H04L9/00

    摘要: An RSA decryption apparatus that is used in an IC card or the like counters a differential fault attack. The RSA decryption apparatus computes at high speed a public key used in data verification, without having to obtain the public key from an external source. The RSA decryption apparatus includes a remainder computation unit 412 that calculates dp=d mod (p−1), and an inverse computation unit 414 that finds an inverse of dp over a residue field with p−1 as a modulus. The RSA decryption apparatus verifies a decipher text with use of the inverse of dp as the public key. The reduced bit count in inverse computation compared to if the inverse of d is found as the public key increases computing speed.

    摘要翻译: 在IC卡等中使用的RSA解密装置反映差分故障攻击。 RSA解密装置高速计算用于数据验证的公开密钥,而不必从外部源获得公共密钥。 RSA解密装置包括:计算d≠p mod(p-1)的余数计算单元412,以及求出d∧ 在p-1作为模量的残留场上。 RSA解密装置使用公开密钥d D的倒数验证解密文本。 与如果将d的倒数作为公开密钥发现的逆计算相比,减少的比特数增加了计算速度。

    Health care system
    73.
    发明授权
    Health care system 有权
    健康医疗体系

    公开(公告)号:US08886936B2

    公开(公告)日:2014-11-11

    申请号:US13201062

    申请日:2010-03-30

    IPC分类号: H04L29/06 H04L9/08 A61B5/00

    摘要: A measurement device measures vital data, encrypts the vital data using an encryption key to generate encrypted vital data, and generates, from a decryption key of the vital data, two pairs of a first share FSD and a second share SSD which enable reproduction of the decryption key. The measurement device generates an encrypted second share by encrypting the second share SSD. The measurement device transmits the encrypted vital data, the first share FSD, and the encrypted second share to a server device via an intermediate device.

    摘要翻译: 测量装置测量重要数据,使用加密密钥对重要数据进行加密以产生加密的重要数据,并从重要数据的解密密钥生成两对第一共享FSD和第二共享SSD,以使得能够再现 解密密钥。 测量设备通过加密第二共享SSD来生成加密的第二共享。 测量设备经由中间设备将加密的重要数据,第一共享FSD和加密的第二共享传送到服务器设备。

    Authentication system, authentication device, terminal, and verifying device
    74.
    发明授权
    Authentication system, authentication device, terminal, and verifying device 有权
    认证系统,认证设备,终端和验证设备

    公开(公告)号:US08850210B2

    公开(公告)日:2014-09-30

    申请号:US11916643

    申请日:2006-06-02

    IPC分类号: H04L9/32 H04L29/06

    摘要: An authentication system, including a service use device 1 which presents blurred information obtained by blurring certification information desired to be certified, service providing devices 3a to 3c which verify the validity of blurred information presented by the service use device 1, and an authentication device 2 which supports the service use device 1 to issue valid blurred information. The authentication device 2 adds a digital signature to information including certification information and blurred information, and generates authentication information including the obtained digital signature, certification information, and blurred information (S2). The service use device 1 generates, based on the authentication information generated in the authentication device 2, blurred authentication information including blurred information selected according to an instruction from a user, instruction information representing the instruction, and a digital signature (S4). The service providing devices 3a to 3c verify the validity of blurred information indicated by instruction information included in the blurred authentication information generated by the service use device 1, based on the digital signature included in the blurred authentication information (S6).

    摘要翻译: 一种验证系统,包括:服务使用装置1,其提供通过使期望认证的认证信息模糊而获得的模糊信息;验证服务使用装置1呈现的模糊信息的有效性的服务提供装置3a至3c;以及认证装置2 其支持服务使用装置1发出有效的模糊信息。 认证装置2将数字签名添加到包括认证信息和模糊信息的信息,并且生成包括所获得的数字签名,认证信息和模糊信息的认证信息(S2)。 服务使用装置1基于认证装置2中生成的认证信息,生成包含根据来自用户的指示而选择的模糊信息,表示指示的指示信息和数字签名的模糊认证信息(S4)。 服务提供装置3a〜3c基于包含在模糊认证信息中的数字签名(S6),验证包含在由服务使用装置1生成的模糊认证信息中的指示信息所表示的模糊信息的有效性。

    METHOD OF MANAGING MAP INFORMATION, NAVIGATION SYSTEM, INFORMATION TERMINAL, AND NAVIGATION DEVICE
    75.
    发明申请
    METHOD OF MANAGING MAP INFORMATION, NAVIGATION SYSTEM, INFORMATION TERMINAL, AND NAVIGATION DEVICE 有权
    管理地图信息,导航系统,信息终端和导航设备的方法

    公开(公告)号:US20140090087A1

    公开(公告)日:2014-03-27

    申请号:US14114030

    申请日:2013-02-27

    IPC分类号: G06F21/62

    摘要: A method of managing map information including: attaching a retrieval identifier, according to input information, to map information which is obtained by retrieval based on the input information, the retrieval identifier indicating whether the map information is personal data or public data; storing the map information as the personal data into a storage device, the map information being indicated to be the personal data by the retrieval identifier attached in the attaching, and storing the map information as the public data into the storage device, the map information being indicated to be the public data by the retrieval identifier; and executing a navigation process using at least one of the personal data and the public data which are stored in the storage device.

    摘要翻译: 一种管理地图信息的方法,包括:根据输入信息将检索标识符附加到基于输入信息的检索获得的地图信息,指示地图信息是个人数据还是公共数据的检索标识符; 将作为个人数据的地图信息存储到存储装置中,通过附着在附件中的检索标识符将该地图信息指示为个人数据,并将该地图信息作为公开数据存储到存储装置中,该地图信息为 通过检索标识符表示为公共数据; 以及使用存储在存储装置中的个人数据和公共数据中的至少一个执行导航处理。

    Apparatus and method for using content on an optical disc having plural partial areas for recording control information indicating that the use of the content is not permitted
    78.
    发明授权
    Apparatus and method for using content on an optical disc having plural partial areas for recording control information indicating that the use of the content is not permitted 有权
    在具有多个部分区域的光盘上使用内容的装置和方法,用于记录指示不允许使用该内容的控制信息

    公开(公告)号:US08576679B2

    公开(公告)日:2013-11-05

    申请号:US13319429

    申请日:2011-03-25

    IPC分类号: G11B15/52

    摘要: The present invention provides an apparatus for correctly controlling content recorded on an optical disc. An apparatus 600 for using content recorded on an optical disc 601, wherein the optical disc 601 includes a control information area 602 composed of partial areas 603a-603n, each being for recording control information indicating that use of the content is not permitted, the apparatus 600 comprises: a position information holding unit 612 holding therein position information indicating one of the partial areas 603a-603n that is allocated for the apparatus 600 to record the control information; a reading unit 613 reading information within the control information area 602; a judgment unit 614 judging whether use of the content is permitted, with use of the information read by the reading unit 613 and the position information; and a usage control unit 615 using the content when use of the content is judged to be permitted.

    摘要翻译: 本发明提供一种用于正确地控制记录在光盘上的内容的装置。 一种用于使用记录在光盘601上的内容的装置600,其中光盘601包括由部分区域603a-603n构成的控制信息区域602,每个部分区域用于记录指示不允许内容的使用的控制信息,该装置 600包括:位置信息保持单元612,其中保存有指示为装置600分配以记录控制信息的部分区域603a-603n之一的位置信息; 读取单元613,读取控制信息区域602内的信息; 判断单元614使用由读取单元613读取的信息和位置信息来判断是否允许使用内容; 以及当使用内容被判定为允许时使用内容的使用控制单元615。