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1. 发明专利

JP2006107247A Time stamping service system, time stamp information verification server apparatus and computer software 有权
标题翻译：时间戳服务系统，时间戳信息验证服务器设备和计算机软件
公开(公告)号：JP2006107247A
公开(公告)日：2006-04-20
申请号：JP2004294904
申请日：2004-10-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TANIGAWA YOSHINOBU , ONOZATO HIROYUKI , HONDA YOSHINORI
IPC分类号： G06F21/64 , G06Q50/00 , G06Q50/10 , G06Q50/26 , H04L9/32
摘要： PROBLEM TO BE SOLVED: To provide a method that certifies that time stamp information was valid even after the valid period of a public key certificate included in the time stamp information has passed or after an encryption algorithm or a key has been compromised. SOLUTION: A system comprises a client 100, a time stamp information issuing apparatus 102, a certification authority 104 and a verification server 110. The server 110 has means for accepting a message requesting the verification of time stamp information from the client 100 and verifying the time stamp information, means for searching saved verification records if the first verification fails, means for verifying data authentication data in a verification record of the time stamp information showing previous verification, and means for sending the second verification result as a verification response message if the second verification passes. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种证明即使在包含在时间戳信息中的公开密钥证书的有效期已经过去之后或在加密算法或密钥被泄密之后时间戳信息有效的方法。解决方案：系统包括客户端100，时间戳信息发布设备102，认证机构104和验证服务器110.服务器110具有用于从客户端100接收请求验证时间戳信息的消息的装置以及验证时间戳信息，用于在第一次验证失败时搜索保存的验证记录的装置，用于在验证记录中验证表示先前验证的时间戳信息的数据认证数据的装置，以及用于发送第二验证结果作为验证响应的装置消息，如果第二次验证通过。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005020651A Validating method of time stamp informastion 审中-公开
标题翻译：时间戳信息的验证方法
公开(公告)号：JP2005020651A
公开(公告)日：2005-01-20
申请号：JP2003186100
申请日：2003-06-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TANIGAWA YOSHINOBU , HONDA YOSHINORI , ONOZATO HIROYUKI
IPC分类号： G06F12/14 , H04L9/32
摘要： PROBLEM TO BE SOLVED: To check the validity of time stamp information which is created by a new encryption scheme or a time stamping method without updating validation client software. SOLUTION: A time stamp information service system is composed of client devices which are connected to one another on a communication network, time stamp information issuing devices, trusted third-party organization devices and a time stamp information validating server device. In this system, when the time stamp information validating server device accepts a message which requires the validation of time stamp information from a client device, it analyzes the time stamp information in the message and judges whether or not it can validate it in itself. If the validation is judged to be being possible, the time stamp information validating server device conducts validation in itself. If validation is judged to be impossible, it specifies the issuer device of the time stamp and requests it to conduct validation. After validation, it returns the created result of validation to the client device. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：检查新加密方案或时间戳方法创建的时间戳信息的有效性，而不更新验证客户端软件。时间戳信息服务系统由在通信网络上彼此连接的客户端设备，时间戳信息发布设备，可信第三方组织设备和时间戳信息验证服务器设备组成。在该系统中，当时间戳信息验证服务器装置接受需要来自客户端装置的时间戳信息的确认的消息时，对消息中的时间戳信息进行分析，判断是否可以对其进行验证。如果验证被认定为可能，则验证服务器设备的时间戳信息本身进行验证。如果判断为不可能，则指定时间戳的颁发者设备并要求进行验证。验证后，它将创建的验证结果返回给客户端设备。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004128999A The electronic signature method by handwritten signature 审中-公开
标题翻译：手写签名的电子签名方法
公开(公告)号：JP2004128999A
公开(公告)日：2004-04-22
申请号：JP2002291783
申请日：2002-10-04
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAKOUJI HIROSHI , OIKAWA MITSUHIRO , FUJISHIRO TAKAHIRO , MIYAZAKI YUTAKA , ONOZATO HIROYUKI
IPC分类号： H04L9/32 , G06T7/00
摘要： PROBLEM TO BE SOLVED: To improve the convenience of an electronic signature action by an input that does not depend on memory and an output that is easy for eyes to recognize.
SOLUTION: Handwritten information inputted from a handwriting input device is compared with handwritten information of a secret key holder preregistered in a signature device. Only when a person is confirmed to be the person himself/herself as a result of handwriting determination, an electronic signature is performed on an electronic document, and how the signature is attached is visibly recognized by pasting the handwriting information on the electronic document as an image. This makes a format close to a document preparing method on the conventional paper base to improve the convenience of an electronic signature action.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：通过不依赖于存储器的输入和容易识别的输出来提高电子签名动作的便利性。解决方案：将从手写输入装置输入的手写信息与预先登记在签名装置中的秘密密钥持有人的手写信息进行比较。只有当人由于手写确定而被确认为该人时，才对电子文件执行电子签名，并通过将电子文档上的手写信息作为图片。这使得格式接近传统纸基上的文档准备方法，以提高电子签名动作的便利性。版权所有（C）2004，JPO

4. 发明专利

JPH10293757A METHOD FOR FINDING ABNORMAL DATA IN EARLY STAGE USING RUN EXAMINATION 失效
公开(公告)号：JPH10293757A
公开(公告)日：1998-11-04
申请号：JP10133097
申请日：1997-04-18
申请人： HITACHI LTD
发明人： ONOZATO HIROYUKI
IPC分类号： G06F17/18 , G06F17/00 , G06Q10/00 , G06Q50/00 , G06Q50/10 , G06Q90/00
摘要： PROBLEM TO BE SOLVED: To find intentional abnormal data from the large amount of time sequential data in an early stage by performing division into stages beforehand, calculating the statistic of a run examination for the respective stages and detecting the indication of the change. SOLUTION: At the time of performing input as a file, a time sequential data file 11 is converted to a binary data file in a binary converter 12 so as to be handled in the run examination. In order to divide the time sequential data stored in a binary conversion file 13 into several stages, the length of one stage and a shifting period are set. They are divided into the stages in a stage setting device 14 based on the value. Then, by a run examination execution device 15, the statistic is calculated for the respective stages generated in the stage setting device 14. The difference of the obtained statistics of the respective stages and a judging statistic set beforehand are compared and the statistics and a judged result are outputted to a result file 16. Thus, since the indication of the change is detected, the abnormal data are found in the early stage in a short time.

5. 发明专利

JP2002049590A ELECTRONIC AUTHENTICATION SYSTEM 失效
公开(公告)号：JP2002049590A
公开(公告)日：2002-02-15
申请号：JP2000242755
申请日：2000-08-04
申请人： HITACHI LTD
发明人： ISHII SHOICHI , NAGANO HIROMI , GOSHIMA HIROYASU , ONOZATO HIROYUKI , OSHIDA SHINSAKU
IPC分类号： G06F21/00 , G06F15/00 , G06F21/33 , G06Q50/00 , G06Q50/10 , G06Q50/26 , G09C1/00 , H04L9/32 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To attain an electronic authentication service which ensures the contents of electronic data on an open network. SOLUTION: An enjoyer 110 of an authentication service transmits the authentication request electronic data 140 having a digital signature to an authentication center 100. The center 100 or an approver 120 judges the contents of the data 140 and gives the digital signature to the permitted data 140 via the center 100. Then the enjoyer 110 acquires the authenticated electronic data 141 which are produced at the center 100. Thus, the enjoyer 110 enjoys the authentication service to the electronic data from the approver 120 and the center 100.

6. 发明专利

JP2002006739A AUTHENTICATION INFORMATION GENERATING DEVICE AND DATA VERIFYING DEVICE 失效
公开(公告)号：JP2002006739A
公开(公告)日：2002-01-11
申请号：JP2000184927
申请日：2000-06-20
申请人： HITACHI LTD
发明人： OIKAWA MITSUHIRO , SUZAKI SEIICHI , ONOZATO HIROYUKI , OSHIDA SHINSAKU
IPC分类号： G06F12/14 , G06F21/64 , G06Q10/00 , G06Q50/00 , G06Q50/10 , G06Q50/26 , G09C1/00 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To reduce a processing amount of re-signatures of digital signatures. SOLUTION: New storage data with signatures 900i are generated by performing digital signatures with new signature keys 850i by making information in which feature information 8201 to 820N of storing object data which are generated after the last cryptgraphic key is updated and feature information 920i-1 of the last generated storage data with a signature 900i-1 are included singing objects to be stored. The verification of the storing object data is performed by verifying the signature verification of storage data with signatures of respective generations and by verifying the coincidence between descriptions of the calculated featured values of the storage data with signatures of the pertinent generation and the storing object data of objects to be verified and descriptions of the storage data with signatures of the previous generation which are included in the storage data with signatures of a next generation and the storing object data as the respective generations.

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