Sales system and recording medium
    91.
    发明授权
    Sales system and recording medium 有权
    销售系统和记录媒体

    公开(公告)号:US07739145B2

    公开(公告)日:2010-06-15

    申请号:US10537549

    申请日:2004-02-17

    IPC分类号: G06Q20/00 G06Q30/00

    摘要: An embodiment of the present invention is directed to a sales system including a recording medium for use in purchasing a commodity, and a register apparatus for performing processing for settlement of payment for purchase of the commodity. Another embodiment of the present invention is directed to a sales system including a mobile information terminal for use in purchasing a commodity, and a register apparatus for performing processing for settlement of payment for purchase of the commodity.

    摘要翻译: 本发明的实施例涉及包括用于购买商品的记录介质的销售系统,以及用于执行用于购买商品的支付结算的处理的注册装置。 本发明的另一实施例涉及包括用于购买商品的移动信息终端的销售系统,以及用于执行用于购买商品的支付结算的处理的注册装置。

    Content recording/reproducing system, distribution device, reproducing device, and recording device
    92.
    发明授权
    Content recording/reproducing system, distribution device, reproducing device, and recording device 有权
    内容记录/再现系统,分发设备,再现设备和记录设备

    公开(公告)号:US07702109B2

    公开(公告)日:2010-04-20

    申请号:US10548265

    申请日:2004-03-11

    IPC分类号: H04L9/00

    摘要: A content recording/reproducing system, which records and reproduces a sub-content relating to a main content, includes a distribution device, first and second recording media, a recording device and a reproducing device. The first recording medium that is non-rewritable prestores key data based on which a public key is derivable, and the main content. The distribution device outputs verification information that includes the sub-content and is generated by applying a digital signature to relative information relating to the sub-content based on a secret key corresponding to the public key. The recording device acquires and records the verification information on the second recording medium that is rewritable. The reproducing device acquires the key data from the first recording medium and the verification information from the second recording medium, derives the public key from the key data, verifies the verification information using the public key, and reproduces the sub-content if the verification succeeds.

    摘要翻译: 记录和再现与主要内容相关的子内容的内容记录/再现系统包括分发装置,第一和第二记录介质,记录装置和再现装置。 不可重写的第一种记录介质预先存储基于该公钥的可导出的密钥数据,以及主要内容。 分发装置输出包含子内容的验证信息,并且通过基于与公开密钥相对应的秘密密钥将数字签名应用于与子内容相关的相关信息来生成。 记录装置在可重写的第二记录介质上获取并记录验证信息。 再现装置从第一记录介质获取密钥数据和来自第二记录介质的验证信息,从密钥数据中导出公共密钥,使用公钥验证验证信息,并且如果验证成功则再现子内容 。

    Device and method for calculation on elliptic curve
    93.
    发明授权
    Device and method for calculation on elliptic curve 有权
    用椭圆曲线计算的装置和方法

    公开(公告)号:US07486789B2

    公开(公告)日:2009-02-03

    申请号:US10314316

    申请日:2002-12-09

    CPC分类号: G06F7/725

    摘要: In scalar multiplication method using a Montgomery-type elliptic curve, a high-speed elliptic curve calculation device effectively uses a table that stores coordinates of certain scalar multiple points like points multiplied by exponentiation of two to a certain point G and so forth. The elliptic curve calculation device receives an arbitrary integer k of n bits and outputs scalar-multiplied points against a point G on a Montgomery-type elliptic curve E on a finite field F that is given in advance. The elliptic curve calculation device includes a calculation procedure generation unit that generates a calculation procedure that addition on the elliptic curve E with either of G, 2 *G, 22*G., . . . , 2n−1*G as the first addition element is repeated and a scalar multiplication unit that calculates the scalar-multiplied points k*G by repeating addition on the elliptic curve E, referring to a table memorizing unit that stores values (coordinates) of exponentiation of two against the point G and complying with the generated calculation procedure.

    摘要翻译: 在使用蒙哥马利椭圆曲线的标量乘法中,高速椭圆曲线计算装置有效地使用存储某些标量多个点的坐标的表,例如将乘以2的乘以2的某点到某一点G的等等。 椭圆曲线计算装置接收n位的任意整数k,并且在预先给出的有限域F上对蒙哥马利椭圆曲线E上的点G输出标量乘积点。 椭圆曲线计算装置包括计算过程生成单元,其生成在G,2 * G,22 * G ...中的任一个上对椭圆曲线E进行相加的计算过程。 。 。 ,作为第一加法元素的2n-1 * G被重复,以及标量乘法单元,通过在椭圆曲线E上重复加法来计算标量乘积k * G,参考存储单元的值(坐标)的表存储单元 两点与点G的取幂,并符合生成的计算过程。

    Signature Generation Apparatus and Signature Verification Apparatus
    94.
    发明申请
    Signature Generation Apparatus and Signature Verification Apparatus 有权
    签名生成装置和签名验证装置

    公开(公告)号:US20080282089A1

    公开(公告)日:2008-11-13

    申请号:US11578432

    申请日:2006-03-14

    IPC分类号: H04L9/06

    摘要: A signature generation apparatus and a signature verification apparatus which can prevent the occurrence of norm zero vector forgery attack. The signature generation apparatus (110) includes a signature generation unit (114) which generates signature data (S) for a message (m) using a private key stored in a private key storage unit (112), and converts the format of the signature data (S) so that the first sub-element of the N sub-elements in the signature data (S) indicates 0 without changing the norm of the signature data (S). The signature verification apparatus (120) includes a signature verification unit (124) which judges whether or not the first sub-element of the N sub-elements included in the signature data (S) indicates 0, and determines the signature data (S) as unauthorized data when judging that it is not 0.

    摘要翻译: 签名生成装置和签名验证装置,其能够防止零向量伪造攻击的发生。 签名生成装置(110)具有使用存储在专用密钥存储部(112)中的专用密钥来生成消息(m)的签名数据(S)的签名生成部(114),并将签名的格式 数据(S),使得签名数据(S)中的N个子元素的第一子元素指示0而不改变签名数据(S)的范围。 签名验证装置(120)包括签名验证单元(124),其判断包括在签名数据(S)中的N个子元素的第一子元素是否指示0,并且确定签名数据(S) 作为未经授权的数据,当判断为不为0时。

    Distribution system, distribution apparatus, and reception apparatus for distributing contents having usage expiry
    96.
    发明授权
    Distribution system, distribution apparatus, and reception apparatus for distributing contents having usage expiry 有权
    用于分发具有使用期满的内容的分发系统,配送装置和接收装置

    公开(公告)号:US07386618B2

    公开(公告)日:2008-06-10

    申请号:US10431500

    申请日:2003-05-08

    IPC分类号: G06F15/16

    CPC分类号: G06F21/10 G06F2221/2137

    摘要: A reception apparatus includes a first timer and sends to a distribution apparatus a first date-time clocked by the first timer. The distributing apparatus includes a second timer, and generates expiry information based on a difference obtained by subtracting, from the first date-time, a second date-time that is clocked by the second timer. The expiry information is used to adjust a usage expiry date-time of content. The reception apparatus judges whether playback of the content is permitted based on the first timer and the expiry information. With this arrangement, unauthorized use of the content beyond the expiry date-time is prevented.

    摘要翻译: 接收装置包括第一定时器,并且向配送装置发送由第一定时器计时的第一日期时间。 分发装置包括第二定时器,并且基于通过从第一日期时间减去由第二定时器计时的第二日期时间而获得的差产生到期信息。 过期信息用于调整内容的使用期限日期时间。 接收装置基于第一定时器和到期信息判断是否允许内容的回放。 通过这种安排,防止超出期满日期时间的内容的未经授权的使用。

    Computer System and Computer Program Executing Encryption or Decryption
    98.
    发明申请
    Computer System and Computer Program Executing Encryption or Decryption 有权
    计算机系统和计算机程序执行加密或解密

    公开(公告)号:US20070237326A1

    公开(公告)日:2007-10-11

    申请号:US11578837

    申请日:2005-04-15

    IPC分类号: H04L9/10

    摘要: A computer system having resistance to timing attacks based on measuring processing times is offered. The computer system encrypts or decrypts a plain text or ciphertext via a process of converting the partial data on the plain text or the encrypted text into conversion data. A conversion table includes one piece of conversion data corresponding to the partial data at the start position of the line table area and includes data not associated with the conversion in the other position. A computer program includes: an operation instruction group for calculating the predetermined position of the corresponding conversion data in the conversion table by using the acquired partial data; and a read instruction group for reading out the conversion data from the position calculated from the conversion table.

    摘要翻译: 提供了一种基于测量处理时间具有抵抗定时攻击的计算机系统。 计算机系统通过将纯文本或加密文本上的部分数据转换为转换数据的处理来对明文或密文进行加密或解密。 转换表包括与行表区域的开始位置处的部分数据相对应的一条转换数据,并且包括与另一位置的转换不相关的数据。 计算机程序包括:操作指令组,用于通过使用所获取的部分数据来计算转换表中相应的转换数据的预定位置; 以及读取指示组,用于从从转换表计算出的位置读出转换数据。

    Ticket management system, terminal device, ticket management server, register device, value conversion method, computer program, and recording medium
    100.
    发明申请
    Ticket management system, terminal device, ticket management server, register device, value conversion method, computer program, and recording medium 有权
    票务管理系统,终端设备,票据管理服务器,注册设备,价值转换方法,计算机程序和记录介质

    公开(公告)号:US20070175979A1

    公开(公告)日:2007-08-02

    申请号:US10594060

    申请日:2005-03-31

    IPC分类号: G06K5/00 G06K7/01 G07B15/02

    摘要: A useful ticket management system is provided, which can perform adjustment using a ticket to which non-updatable value information is assigned together with an electronic value, according to a payment form. The ticket management system includes an IC tag attached to a money ticket, a money ticket management server, and a mobile terminal. The IC tag holds a money ticket ID for identifying the money ticket, and reads the money ticket ID. The money ticket management server includes a storage unit, receives the money ticket ID from the mobile terminal, and writes a valid money ticket ID to the storage unit. The mobile terminal includes a storage unit, acquires the money ticket ID held in the IC tag, transmits the acquired money ticket ID to the money ticket management server, and writes amount information of the money ticket identified by the valid money ticket ID to the storage unit.

    摘要翻译: 提供了一种有用的票据管理系统,其可以根据支付方式使用不可更新价值信息被分配的票据与电子价值进行调整。 售票管理系统包括附加到货币单的IC标签,货币单管理服务器和移动终端。 IC标签保存用于识别货币单的钱票ID,并读取票单ID。 货币单管理服务器包括存储单元,从移动终端接收到钱票ID,并向存储单元写入有效的票证ID。 移动终端包括存储单元,获取保存在IC标签中的钱票ID,将所获取的钱票ID发送到钱票管理服务器,并将由有效票证ID识别的钱票的金额信息写入到存储器 单元。