公开(公告)号：US20140298034A1

公开(公告)日：2014-10-02

申请号：US14351673

申请日：2012-10-02

Applicant: Hitachi, Ltd.

Inventor： Natsuki Watanabe ,  Yoko Hashimoto ,  Kosuke Anzai ,  Kunihiko Miyazaki ,  Naoki Hayashi ,  Yoshiaki Isobe ,  Tomohisa Kumagai ,  Daisuke Miyamoto

IPC: H04L9/32

CPC classification number: H04L9/3247 ,  H04L9/3236 ,  H04L2209/38

Abstract: A data authenticity assurance method carried out by a management computer including: a first step of receiving the first data piece from the computer; a second step of selecting a plurality of second data pieces at predetermined intervals in chronological order from among the plurality of second data pieces held in the data holding part; a third step of performing an arithmetic operation for each of the hash values of the selected plurality of second data pieces; a fourth step of generating signature target data by combining the first data piece received from the computer with the hash values of the selected plurality of second data pieces; and a fifth step of generating a second data piece by assigning the digital signature to the signature target data by using the preset key, and holding the generated second data piece in chronological order sequentially in the data holding part.

Abstract translation: 一种由管理计算机执行的数据真实性保证方法，包括：从计算机接收第一数据片的第一步骤; 从保存在数据保持部的多个第二数据中按时间顺序从预定间隔选择多个第二数据的第二步骤; 对所选择的多个第二数据段的每个哈希值执行算术运算的第三步骤; 第四步骤，通过将从计算机接收的第一数据片段与所选择的多个第二数据片段的散列值相组合来产生签名目标数据; 以及第五步骤，通过使用所述预设密钥将所述数字签名分配给所述签名目标数据来生成第二数据块，并且在所述数据保持部分中按顺序依次保存所生成的第二数据。

公开(公告)号：US09419804B2

公开(公告)日：2016-08-16

申请号：US14351673

申请日：2012-10-02

Applicant: Hitachi, Ltd.

Inventor： Natsuki Watanabe ,  Yoko Hashimoto ,  Kosuke Anzai ,  Kunihiko Miyazaki ,  Naoki Hayashi ,  Yoshiaki Isobe ,  Tomohisa Kumagai ,  Daisuke Miyamoto

IPC: H04L29/06 ,  H04L9/32

CPC classification number: H04L9/3247 ,  H04L9/3236 ,  H04L2209/38

Abstract: A data authenticity assurance method carried out by a management computer including: a first step of receiving the first data piece from the computer; a second step of selecting a plurality of second data pieces at predetermined intervals in chronological order from among the plurality of second data pieces held in the data holding part; a third step of performing an arithmetic operation for each of the hash values of the selected plurality of second data pieces; a fourth step of generating signature target data by combining the first data piece received from the computer with the hash values of the selected plurality of second data pieces; and a fifth step of generating a second data piece by assigning the digital signature to the signature target data by using the preset key, and holding the generated second data piece in chronological order sequentially in the data holding part.

Abstract translation: 一种由管理计算机执行的数据真实性保证方法，包括：从计算机接收第一数据片的第一步骤; 从保存在数据保持部的多个第二数据中按时间顺序从预定间隔选择多个第二数据的第二步骤; 对所选择的多个第二数据段的每个哈希值执行算术运算的第三步骤; 第四步骤，通过将从计算机接收的第一数据片段与所选择的多个第二数据片段的散列值相组合来产生签名目标数据; 以及第五步骤，通过使用所述预设密钥将所述数字签名分配给所述签名目标数据来生成第二数据块，并且在所述数据保持部分中按顺序依次保存所生成的第二数据。

公开(公告)号：US08635449B2

公开(公告)日：2014-01-21

申请号：US13666623

申请日：2012-11-01

Applicant: Hitachi Ltd.

Inventor： Akane Sato ,  Yoko Hashimoto ,  Shingo Hane ,  Takahiro Fujishiro ,  Masahiko Furuya ,  Masami Uzawa

IPC: H04K1/00

CPC classification number: H04L63/0823 ,  H04L9/0891 ,  H04L9/321 ,  H04L9/3263

Abstract: In response to a validation request that includes second information identifying the certificate authority, key information of the certificate authority at issuance of the public key certificate, and information identifying the public key certificate, if the second information identifying the certificate authority included in the validation request corresponds to the first information identifying the certificate authority included in the authority certificate, and the information identifying the public key certificate included in the validation request does not exist in the revocation information, the validation server creates a validation result indicating that the public key certificate corresponding to the information identifying the public key certificate included in the validation request is valid.

Abstract translation: 响应于包括标识证书颁发机构的第二信息的确认请求，在发行公共密钥证书时的证书颁发机构的密钥信息和识别公开密钥证书的信息，如果识别包括在验证请求中的证书颁发机构的第二信息 对应于识别权限证书中包含的证书颁发机构的第一信息，并且识别包含在验证请求中的公钥证书的信息不存在于撤销信息中，验证服务器创建指示公钥证书对应的验证结果 识别包含在验证请求中的公钥证书的信息是有效的。