Data processing apparatus and its method
    63.
    发明授权
    Data processing apparatus and its method 有权
    数据处理装置及其方法

    公开(公告)号:US07930544B2

    公开(公告)日:2011-04-19

    申请号:US11574089

    申请日:2005-10-25

    申请人: Keiichi Iwamura

    发明人: Keiichi Iwamura

    IPC分类号: H04L9/32

    摘要: A verification information generation system includes first and second data processing apparatuses. The first data processing apparatus has a unit holding first secret information, a unit receiving information associated with the second secret information from the second apparatus, a unit generating key information on the basis of the first secret information and the information associated with the second secret information, a unit generating key derivation auxiliary information allowing the key information to be derived from the second secret information, a unit generating verification information on the basis of information to be verified and the key information, and a unit outputting the information to be verified, the verification information, and the key derivation auxiliary information. The second secret information is information which is set in advance in the second data processing apparatus.

    摘要翻译: 验证信息生成系统包括第一和第二数据处理装置。 第一数据处理装置具有保持第一秘密信息的单元,从第二装置接收与第二秘密信息相关联的信息的单元,基于第一秘密信息和与第二秘密信息相关联的信息产生密钥信息的单元 产生密钥导出辅助信息的单元,其允许从第二秘密信息导出密钥信息;基于要验证的信息生成验证信息的单元和密钥信息;以及输出要验证的信息的单元, 验证信息和密钥导出辅助信息。 第二秘密信息是在第二数据处理装置中预先设定的信息。

    Data-processing system and method for controlling same, computer program, and computer-readable recording medium
    64.
    发明授权
    Data-processing system and method for controlling same, computer program, and computer-readable recording medium 有权
    数据处理系统及其控制方法,计算机程序和计算机可读记录介质

    公开(公告)号:US07594118B2

    公开(公告)日:2009-09-22

    申请号:US11208807

    申请日:2005-08-22

    申请人: Keiichi Iwamura

    发明人: Keiichi Iwamura

    IPC分类号: H04L9/00

    摘要: A data-processing system and method for controlling synthesizing digital-signature information. The system and method include holding first private-key information, inputting second private-key information, generating third private-key information based on the first private-key information and the second private-key information, holding the third private-key information, generating signature information based on information to be verified and the third private-key information, and outputting the information to be verified and the signature information.

    摘要翻译: 一种用于控制合成数字签名信息的数据处理系统和方法。 该系统和方法包括保持第一私钥信息,输入第二私钥信息,基于第一私钥信息和第二私钥信息生成第三私钥信息,保存第三私钥信息,产生 基于要验证的信息的签名信息和第三私钥信息,并输出要被验证的信息和签名信息。

    DATA-PROCESSING SYSTEM AND METHOD FOR CONTROLLING SAME, COMPUTER PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM
    65.
    发明申请
    DATA-PROCESSING SYSTEM AND METHOD FOR CONTROLLING SAME, COMPUTER PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM 审中-公开
    数据处理系统及其控制方法,计算机程序和计算机可读记录介质

    公开(公告)号:US20090187767A1

    公开(公告)日:2009-07-23

    申请号:US12411000

    申请日:2009-03-25

    申请人: Keiichi Iwamura

    发明人: Keiichi Iwamura

    IPC分类号: H04L9/30 H04L9/00

    摘要: A data-processing system and method for controlling synthesizing digital-signature information. The system and method include holding first private-key information, inputting second private-key information, generating third private-key information based on the first private-key information and the second private-key information, holding the third private-key information, generating signature information based on information to be verified and the third private-key information, and outputting the information to be verified and the signature information.

    摘要翻译: 一种用于控制合成数字签名信息的数据处理系统和方法。 该系统和方法包括保持第一私钥信息,输入第二私钥信息,基于第一私钥信息和第二私钥信息生成第三私钥信息,保存第三私钥信息,产生 基于要验证的信息的签名信息和第三私钥信息,并输出要被验证的信息和签名信息。

    Information processing method, falsification verification method and device, storage medium, and program
    66.
    发明申请
    Information processing method, falsification verification method and device, storage medium, and program 失效
    信息处理方法,伪造验证方法和设备,存储介质和程序

    公开(公告)号:US20070172256A1

    公开(公告)日:2007-07-26

    申请号:US11352240

    申请日:2006-02-13

    申请人: Keiichi Iwamura

    发明人: Keiichi Iwamura

    IPC分类号: G03G15/22

    摘要: The secret data is acquired externally by making an arithmetic operation between unique information of an apparatus and the first information managed secretly, and secretly held as key data in a key holding part. A MAC generation part generates the authentication data based on a hash value obtained from the data to be protected and the key data held in the key holding part 21. An image file generation part generates an image file to provide the unique information and the authentication data together with the data to be protected.

    摘要翻译: 通过在设备的唯一信息和秘密地管理的第一信息之间进行算术运算,并且秘密地​​将其作为密钥数据保存在密钥保持部分中,从而获取秘密数据。 MAC生成部基于从要保护的数据获得的哈希值和保持在密钥保存部21中的密钥数据生成认证数据。 图像文件生成部件生成图像文件以提供唯一信息和认证数据以及要保护的数据。

    INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, STORAGE MEDIUM AND PROGRAM
    68.
    发明申请
    INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, STORAGE MEDIUM AND PROGRAM 有权
    信息处理设备,信息处理系统,信息处理方法,存储介质和程序

    公开(公告)号:US20070063884A1

    公开(公告)日:2007-03-22

    申请号:US11550919

    申请日:2006-10-19

    IPC分类号: H03M1/12

    摘要: A provider side apparatus provides original digital data together with a digital signature generated by the provider side apparatus, the digital signature detecting whether the original digital data was falsified or detecting a change level given to the original digital data. Upon reception of the digital data, a receiver side apparatus can know the originality of the received digital data or a change level of the received digital data from the original digital data, in accordance with the digital signature corresponding to the digital data.

    摘要翻译: 提供者侧设备提供原始数字数据以及由提供商侧设备产生的数字签名,数字签名检测原始数字数据是否被伪造或检测给予原始数字数据的改变等级。 在接收到数字数据时,接收机侧设备可以根据与数字数据对应的数字签名,从原始数字数据中知道接收的数字数据的原始性或所接收的数字数据的改变等级。

    Information processing apparatus, information processing system, information processing method, storage medium and program
    69.
    发明授权
    Information processing apparatus, information processing system, information processing method, storage medium and program 有权
    信息处理装置,信息处理系统,信息处理方法,存储介质和程序

    公开(公告)号:US07194630B2

    公开(公告)日:2007-03-20

    申请号:US10366313

    申请日:2003-02-14

    IPC分类号: G06K9/68

    摘要: A provider side apparatus provides original digital data together with a digital signature generated by the provider side apparatus, the digital signature detecting whether the original digital data was falsified or detecting a change level given to the original digital data. Upon reception of the digital data, a receiver side apparatus can know the originality of the received digital data or a change level of the received digital data from the original digital data, in accordance with the digital signature corresponding to the digital data.

    摘要翻译: 提供者侧设备提供原始数字数据以及由提供商侧设备产生的数字签名,数字签名检测原始数字数据是否被伪造或检测给予原始数字数据的改变等级。 在接收到数字数据时,接收机侧设备可以根据与数字数据对应的数字签名,从原始数字数据中知道接收的数字数据的原始性或所接收的数字数据的改变等级。

    Method of using plural watermarks to prevent unauthorized image copying
    70.
    发明授权
    Method of using plural watermarks to prevent unauthorized image copying 有权
    使用多个水印以防止未经授权的图像复制的方法

    公开(公告)号:US07158652B2

    公开(公告)日:2007-01-02

    申请号:US09793634

    申请日:2001-02-27

    申请人: Keiichi Iwamura

    发明人: Keiichi Iwamura

    IPC分类号: G06K9/00

    摘要: An increasing number of people are employing a variety of methods of editing and processing digital content in an effort to illegally copy the content. It is difficult to develop digital watermark technology that is able to withstand all types of editing and processing. The present invention addresses the foregoing problems by providing a digital content processing method comprising performing a plurality of copyright protection processes on digital content, each copyright protection process differing in difficulty of being analyzing, and distributing the processed digital content.

    摘要翻译: 越来越多的人正在采用各种编辑和处理数字内容的方法来努力非法复制内容。 难以开发能够承受所有类型的编辑和处理的数字水印技术。 本发明通过提供一种数字内容处理方法来解决上述问题,该方法包括对数字内容执行多个版权保护处理,每个版权保护处理难以分析,并且分发经处理的数字内容。