公开(公告)号：US07900050B2

公开(公告)日：2011-03-01

申请号：US11512323

申请日：2006-08-30

申请人： Tetsuya Izu ,  Masahiko Takenaka ,  Takashi Yoshioka

发明人： Tetsuya Izu ,  Masahiko Takenaka ,  Takashi Yoshioka

IPC分类号： H04L9/32

CPC分类号： H04L9/321 ,  G06F21/645 ,  G06Q20/3821 ,  G06Q20/3829 ,  G06Q20/4012 ,  G06Q50/188 ,  H04L9/3073 ,  H04L9/3247 ,  H04L2209/60 ,  H04L2209/68

摘要： Disclosed is a digital document management program capable of achieving a third-party certification of document information with reduced amount of meta data.At the registration time of new document information, the digital document management program manages a digital signature created in association with document information. At the correction time of the document information, the program acquires partial identification information related to a corrected part of the document information before correction, creates a digital signature to be appended to the corrected document information, and manages the digital signature and partial identification information related to the corrected part of the document information in association with the corrected document information. At the verification time, the program uses partial identification information, the partial identification information corresponding to a corrected part of the document information before correction, and digital signature to perform verification.

摘要翻译： 公开了一种数字文档管理程序，其能够实现具有减少的元数据量的文档信息的第三方认证。 在新文件信息的注册时，数字文档管理程序管理与文档信息相关联创建的数字签名。 在文件信息的校正时间，程序获取与校正前的文档信息的校正部分相关的部分识别信息，创建要附加到校正文档信息的数字签名，并管理数字签名和部分识别信息 与校正的文档信息相关联地被修改为文档信息的部分。 在验证时，程序使用部分识别信息，对应于校正前的文档信息的校正部分的部分识别信息，以及数字签名进行验证。

公开(公告)号：US20090013379A1

公开(公告)日：2009-01-08

申请号：US12166971

申请日：2008-07-02

申请人： Takashi Yoshioka ,  Masahiko Takenaka ,  Tetsuya Izu

发明人： Takashi Yoshioka ,  Masahiko Takenaka ,  Tetsuya Izu

IPC分类号： G06F21/00

CPC分类号： H04L63/126 ,  H04L51/00 ,  H04L63/123

摘要： A computer extracts the header information from an electronic mail, including an originality guarantee. The computer generates a header characterization for the header information subject to originality guarantee, and extracts message body information from the electronic mail and generates a body characterization for the message body information as well. The generated characterization set applies the header characterization and the body characterization, combined. The verification information is added to the generated characterization set for applying a signature, and characterization set is linked to electronic mail.

摘要翻译： 计算机从电子邮件中提取标题信息，包括原创性保证。 计算机产生头文件标题，以保证原始性，并从电子邮件中提取消息体信息，并生成消息体信息的身体特征。 生成的特征集合应用头部表征和身体表征，组合。 将验证信息添加到生成的表征集中以应用签名，并且表征集与电子邮件相关联。

公开(公告)号：US20070168672A1

公开(公告)日：2007-07-19

申请号：US11512323

申请日：2006-08-30

申请人： Tetsuya Izu ,  Masahiko Takenaka ,  Takashi Yoshioka

发明人： Tetsuya Izu ,  Masahiko Takenaka ,  Takashi Yoshioka

IPC分类号： H04L9/00

CPC分类号： H04L9/321 ,  G06F21/645 ,  G06Q20/3821 ,  G06Q20/3829 ,  G06Q20/4012 ,  G06Q50/188 ,  H04L9/3073 ,  H04L9/3247 ,  H04L2209/60 ,  H04L2209/68

摘要： Disclosed is a digital document management program capable of achieving a third-party certification of document information with reduced amount of meta data.At the registration time of new document information, the digital document management program manages a digital signature created in association with document information. At the correction time of the document information, the program acquires partial identification information related to a corrected part of the document information before correction, creates a digital signature to be appended to the corrected document information, and manages the digital signature and partial identification information related to the corrected part of the document information in association with the corrected document information. At the verification time, the program uses partial identification information, the partial identification information corresponding to a corrected part of the document information before correction, and digital signature to perform verification.

摘要翻译： 公开了一种数字文档管理程序，其能够实现具有减少的元数据量的文档信息的第三方认证。 在新文件信息的注册时，数字文档管理程序管理与文档信息相关联创建的数字签名。 在文件信息的校正时间，程序获取与校正前的文档信息的校正部分相关的部分识别信息，创建要附加到校正文档信息的数字签名，并管理数字签名和部分识别信息 与校正的文档信息相关联地被修改为文档信息的部分。 在验证时，程序使用部分识别信息，对应于校正前的文档信息的校正部分的部分识别信息，以及数字签名进行验证。

公开(公告)号：US08335922B2

公开(公告)日：2012-12-18

申请号：US11882097

申请日：2007-07-30

申请人： Takashi Yoshioka ,  Masahiko Takenaka ,  Tetsuya Izu

发明人： Takashi Yoshioka ,  Masahiko Takenaka ,  Tetsuya Izu

IPC分类号： G06F21/00

CPC分类号： H04N1/32144 ,  H04N2201/3233

摘要： Certification/verification of authenticity and integrity of a digital document can be achieved, using meta information and content information and third-party certification thereof is achieved.A digital information verification program stored in a recording medium according to the present invention allows a computer to determine presence/absence of any change made to the digital information and identify the changed part by the following steps: generating the feature amount information with respect to the digital information to be verified and registering it in association with the digital document; in the case where any operation is made to the digital information, acquiring the feature amount information (meta information related parameters and content information related parameters) of the meta information and content information concerning the operation, the feature amount information including the same items (meta information and content information) as those of the feature amount information related to the digital information before being operated; and comparing the feature amount information before and after the operation.

摘要翻译： 可以实现数字文档的真实性和完整性的认证/验证，使用元信息和内容信息以及第三方认证。 存储在根据本发明的记录介质中的数字信息验证程序允许计算机确定对数字信息做出的任何改变的存在/不存在，并通过以下步骤识别改变的部分：生成相对于 要与数字文件相关联的数字信息进行验证和注册; 在对数字信息进行任何操作的情况下，获取元信息的特征量信息（元信息相关参数和内容信息相关参数）和与操作有关的内容信息，包括相同项目的特征量信息（元 信息和内容信息）作为与操作之前的数字信息相关的特征量信息的信息; 以及比较操作之前和之后的特征量信息。

公开(公告)号：US08037312B2

公开(公告)日：2011-10-11

申请号：US11984314

申请日：2007-11-15

申请人： Masahiko Takenaka ,  Tetsuya Izu ,  Takashi Yoshioka

发明人： Masahiko Takenaka ,  Tetsuya Izu ,  Takashi Yoshioka

IPC分类号： H04L9/32

CPC分类号： H04L9/3236 ,  G06F21/6254 ,  G06F21/645 ,  G06F2221/2151 ,  H04L9/3247 ,  H04L2209/08 ,  H04L2209/42

摘要： An apparatus for digital signature authentication includes a dividing unit that divides streaming data into plural pieces of partial data in a predetermined unit; a first creating unit that creates a hash value string including plural hash values corresponding to the pieces of partial data; a second creating unit that creates a first binary tree using the hash value string; and a third creating unit that creates a digital signature of a signer using a root value of the first binary tree.

摘要翻译： 一种用于数字签名认证的装置，包括一个分割单元，它将流数据分成预定单位的多个部分数据; 第一创建单元，其创建包括与所述部分数据对应的多个哈希值的散列值串; 第二创建单元，其使用所述散列值字符串来创建第一二进制树; 以及第三创建单元，其使用第一二叉树的根值创建签名者的数字签名。

公开(公告)号：US20080082829A1

公开(公告)日：2008-04-03

申请号：US11882097

申请日：2007-07-30

申请人： Takashi Yoshioka ,  Masahiko Takenaka ,  Tetsuya Izu

发明人： Takashi Yoshioka ,  Masahiko Takenaka ,  Tetsuya Izu

IPC分类号： H04L9/32

CPC分类号： H04N1/32144 ,  H04N2201/3233

摘要： Certification/verification of authenticity and integrity of a digital document can be achieved, using meta information and content information and third-party certification thereof is achieved.A digital information verification program stored in a recording medium according to the present invention allows a computer to determine presence/absence of any change made to the digital information and identify the changed part by the following steps: generating the feature amount information with respect to the digital information to be verified and registering it in association with the digital document; in the case where any operation is made to the digital information, acquiring the feature amount information (meta information related parameters and content information related parameters) of the meta information and content information concerning the operation, the feature amount information including the same items (meta information and content information) as those of the feature amount information related to the digital information before being operated; and comparing the feature amount information before and after the operation.

摘要翻译： 可以实现数字文档的真实性和完整性的认证/验证，使用元信息和内容信息以及第三方认证。 存储在根据本发明的记录介质中的数字信息验证程序允许计算机确定对数字信息做出的任何改变的存在/不存在，并通过以下步骤识别改变的部分：生成相对于 要与数字文件相关联的数字信息进行验证和注册; 在对数字信息进行任何操作的情况下，获取元信息的特征量信息（元信息相关参数和内容信息相关参数）和与操作有关的内容信息，包括相同项目的特征量信息（元 信息和内容信息）作为与操作之前的数字信息相关的特征量信息的信息; 以及比较操作之前和之后的特征量信息。

公开(公告)号：US20070168671A1

公开(公告)日：2007-07-19

申请号：US11403824

申请日：2006-04-14

申请人： Masahiko Takenaka ,  Tetsuya Izu ,  Takashi Yoshioka

发明人： Masahiko Takenaka ,  Tetsuya Izu ,  Takashi Yoshioka

IPC分类号： H04L9/00

CPC分类号： H04L9/321 ,  G06F21/645 ,  G06Q20/3821 ,  G06Q20/3829 ,  G06Q20/4012 ,  G06Q50/188 ,  H04L9/3073 ,  H04L9/3247 ,  H04L2209/60 ,  H04L2209/68

摘要： Disclosed is a digital document management program capable of achieving a third-party certification of document information with reduced amount of meta data. At the registration time of new document information, the digital document management program manages a digital signature created in association with document information. At the correction time of the document information, the program acquires partial identification information related to a corrected part of the document information before correction, creates a digital signature to be appended to the corrected document information, and manages the digital signature and partial identification information related to the corrected part of the document information in association with the corrected document information. At the verification time, the program uses partial identification information, the partial identification information corresponding to a corrected part of the document information before correction, and digital signature to perform verification.

公开(公告)号：US08312266B2

公开(公告)日：2012-11-13

申请号：US12166971

申请日：2008-07-02

申请人： Takashi Yoshioka ,  Masahiko Takenaka ,  Tetsuya Izu

发明人： Takashi Yoshioka ,  Masahiko Takenaka ,  Tetsuya Izu

IPC分类号： H04L29/06

CPC分类号： H04L63/126 ,  H04L51/00 ,  H04L63/123

摘要： A computer extracts the header information from an electronic mail, including an originality guarantee. The computer generates a header characterization for the header information subject to originality guarantee, and extracts message body information from the electronic mail and generates a body characterization for the message body information as well. The generated characterization set applies the header characterization and the body characterization, combined. The verification information is added to the generated characterization set for applying a signature, and characterization set is linked to electronic mail.

摘要翻译： 计算机从电子邮件中提取标题信息，包括原创性保证。 计算机产生头文件标题，以保证原始性，并从电子邮件中提取消息体信息，并生成消息体信息的身体特征。 生成的特征集合应用头部表征和身体表征，组合。 将验证信息添加到生成的表征集中以应用签名，并且表征集与电子邮件相关联。

公开(公告)号：US20080256362A1

公开(公告)日：2008-10-16

申请号：US11984314

申请日：2007-11-15

申请人： Masahiko Takenaka ,  Tetsuya Izu ,  Takashi Yoshioka

发明人： Masahiko Takenaka ,  Tetsuya Izu ,  Takashi Yoshioka

IPC分类号： G06F9/06

CPC分类号： H04L9/3236 ,  G06F21/6254 ,  G06F21/645 ,  G06F2221/2151 ,  H04L9/3247 ,  H04L2209/08 ,  H04L2209/42

摘要： An apparatus for digital signature authentication includes a dividing unit that divides streaming data into plural pieces of partial data in a predetermined unit; a first creating unit that creates a hash value string including plural hash values corresponding to the pieces of partial data; a second creating unit that creates a first binary tree using the hash value string; and a third creating unit that creates a digital signature of a signer using a root value of the first binary tree.

摘要翻译： 一种用于数字签名认证的装置，包括一个分割单元，它将流数据分成预定单位的多个部分数据; 第一创建单元，其创建包括与所述部分数据对应的多个哈希值的散列值串; 第二创建单元，其使用所述散列值字符串来创建第一二进制树; 以及第三创建单元，其使用第一二叉树的根值创建签名者的数字签名。

公开(公告)号：US20090210715A1

公开(公告)日：2009-08-20

申请号：US12320595

申请日：2009-01-29

申请人： Tetsuya Izu ,  Masahiko Takenaka

发明人： Tetsuya Izu ,  Masahiko Takenaka

IPC分类号： H04L9/32 ,  G06F21/24

CPC分类号： G06F21/64

摘要： In verifying a digital document, an input of a digital document is received and the digital document is divided into arbitrary constituent parts. A normal random number or a pseudo random number is assigned to each of the constituent parts according to the order in which the constituent parts appear in the digital document. Thus, verification of the authenticity of a digital document is enabled even when an alteration, such as a change of the order of the partial documents or a copy thereof, has been made to the digital document.

摘要翻译： 在验证数字文档时，接收数字文档的输入，并将数字文档分成任意组成部分。 根据组成部分出现在数字文档中的顺序，将正常随机数或伪随机数分配给每个组成部分。 因此，即使已经对数字文档进行了诸如更改部分文档的顺序或其副本的改变，也能够验证数字文档的真实性。