公开(公告)号：US20080307247A1

公开(公告)日：2008-12-11

申请号：US11918144

申请日：2006-04-07

申请人： Masakazu Uehata

发明人： Masakazu Uehata

IPC分类号： G06F1/14 ,  G06Q50/00 ,  G04G5/00

CPC分类号： G06F1/14 ,  H04L9/12 ,  H04L9/3263 ,  H04L9/3297

摘要： An object is to perform time certification at a low cost while ensuring high precision and high reliability. In a time stamp server according to the present embodiment, a time is measured by the unit of, for example, 100 milliseconds, and a time stamp is issued by using the time. However, what is important is generally a date in a time stamp although it depends on a certification target. Therefore, it is thought that no adverse affect occurs substantially, even if a second hand is doctored. Accordingly, in the present embodiment, the time measured by the internal clock of the time stamp server is divided into a part regarding the units equal to or larger than the unit of minute (year, month, day, minute) and a part regarding the unit of second (including the units smaller than one second, such as millisecond), and the part regarding the units equal to or larger than the unit of minute is audited by an auditory office, whereas the part regarding the unit of second is synchronized with a time distributed from a time distributing office. That is, as to the part regarding the units equal to or larger than the unit of minute, the coincidence with the reference time is confirmed, whereas the part regarding the unit of second is corrected by using the time distributed from the time distributing office.

摘要翻译： 目的是以低成本执行时间认证，同时确保高精度和高可靠性。 在根据本实施例的时间戳服务器中，以例如100毫秒为单位测量时间，并且通过使用时间发出时间戳。 然而，重要的是通常是时间戳的日期，尽管它取决于认证目标。 因此，即使是二手的话，也不会发生不利的影响。 因此，在本实施方式中，由时间戳服务器的内部时钟测定的时间被分为与分钟（年，月，日，分）的单位相同的单位的部分， 第二个单位（包括小于1秒的单位，如毫秒），关于等于或大于分钟单位的单位的部分由听觉室审计，而关于第二单位的部分与 从时间分配办公室分发的时间。 也就是说，关于等于或大于分钟的单位的部分，与参考时间的一致性被确认，而关于第二单位的部分通过使用从分发处分发的时间来校正。

公开(公告)号：US20120303963A1

公开(公告)日：2012-11-29

申请号：US13508752

申请日：2010-07-06

申请人： Shinichi Murao ,  Masakazu Uehata ,  Koichi Shibata

发明人： Shinichi Murao ,  Masakazu Uehata ,  Koichi Shibata

IPC分类号： H04L9/32 ,  G06F21/24

CPC分类号： H04L9/3247 ,  G06F21/64 ,  H04L9/3236 ,  H04L9/3263 ,  H04L9/3268 ,  H04L9/3297 ,  H04L2209/68

摘要： Long-term signature data is formed at a server side while a private key and the like are held at a client side. The long-term signature data is configured by arranging ES, STS, verification information, ATS (1st), and ATS (2nd) in a predetermined long-term signature format. Among these elements, those for which processing using the private key and original data are necessary are ES and ATS. Due to processing where the original data and the private key is necessary being performed by a client terminal 3 and processing where the long-term signature data is analyzed and generated being performed by a long-term signature server 2, the long-term signature data is generated in the long-term signature server 2 while the original data and the private key are held in an inner portion of the client terminal 3. In this manner, the processing where the long-term signature data is formed is separated from the processing using the private key and the original data and the processing where the analysis and generation of XML is performed, and the former is undertaken in the client terminal 3 and the latter is undertaken in the long-term signature server 2.

摘要翻译： 在服务器端形成长期签名数据，而在客户端保持私钥等。 通过以预定的长期签名格式安排ES，STS，验证信息，ATS（1st）和ATS（2nd））来配置长期签名数据。 在这些元素中，使用私钥和原始数据进行处理的元素是ES和ATS。 由于由客户终端3执行原始数据和专用密钥的处理以及由长期签名服务器2执行长期签名数据分析和生成的处理，所以长期签名数据 在原始数据和专用密钥被保存在客户终端3的内部的同时在长期签名服务器2中生成。以这种方式，形成长期签名数据的处理与处理 使用私钥和原始数据以及执行XML的分析和生成的处理，并且前者在客户终端3中进行，后者在长期签名服务器2中进行。

公开(公告)号：US08041980B2

公开(公告)日：2011-10-18

申请号：US11918144

申请日：2006-04-07

申请人： Masakazu Uehata

发明人： Masakazu Uehata

IPC分类号： G06F1/04

CPC分类号： G06F1/14 ,  H04L9/12 ,  H04L9/3263 ,  H04L9/3297

摘要： A time certifying server has a clock unit that outputs time information. Units of time equal to or larger than a predetermined unit are acquired from the time information. Units of time from the time information smaller than the predetermined unit are corrected using an acquired correction time and without correcting the acquired units of time equal to or larger than the predetermined unit. A reference time is received from a reference time distributing server that distributes reference time. A verification process is then executed to verify that the clock unit operates at a precision falling within a predetermined range by confirming that, in the time of the units equal to or larger than the predetermined unit, the acquired time and the received reference time coincide with each other. A certification target information that serves as time certification target is received from a client terminal. Time certification information of the received certification target information is generated after verification of the operational precision of the clock unit using the corrected units of time. The generated time certification information is transmitted to the client terminal.

摘要翻译： 时间认证服务器具有输出时间信息的时钟单元。 从时间信息获取等于或大于预定单位的时间单位。 使用获取的校正时间校正从小于预定单位的时间信息的时间单位，并且不校正所获取的等于或大于预定单位的时间单位。 从分配参考时间的参考时间分发服务器接收到参考时间。 然后执行验证处理，以通过确认在等于或大于预定单位的单位的时间内，所述时钟单元以落在预定范围内的精度操作，所获取的时间和接收到的参考时间与 彼此。 从客户终端接收用作时间认证目标的认证目标信息。 在使用校正的时间单位验证时钟单元的操作精度之后，生成接收到的认证对象信息的时间认证信息。 生成的时间认证信息被发送到客户终端。

公开(公告)号：US09363411B2

公开(公告)日：2016-06-07

申请号：US14240521

申请日：2012-04-27

申请人： Shinichi Murao ,  Masakazu Uehata ,  Hitoshi Yoshida ,  Toshio Takahashi

发明人： Shinichi Murao ,  Masakazu Uehata ,  Hitoshi Yoshida ,  Toshio Takahashi

IPC分类号： H04L9/32 ,  H04N1/32 ,  G06T1/00

CPC分类号： H04N1/32336 ,  G06T1/0021 ,  G06T2201/0062 ,  G06T2201/0064 ,  G06T2201/0065 ,  H04L9/321 ,  H04L9/3239 ,  H04L9/3297 ,  H04N1/32352

摘要： A data certification system includes a proof information generation unit that generates certification information for certifying non-falsification of raw data, and generates proof information including the certification information and time information representing the time of the generation of the certification information. A server transmission unit transmits the proof information which is received by a client reception unit. A time information acquisition unit acquires the time information representing the time of the generation of the certification information from the proof information. A report generation unit generates report data in which the time information and publishing destination information representing a publishing destination are included in the raw data. A transfer unit transfers the raw data, the proof information, and the report data to a publishing server which releases the report data. An output unit outputs the report data.

摘要翻译： 数据认证系统包括证明信息生成单元，其生成用于认证原始数据的非伪造的认证信息，并且生成包括认证信息的证明信息和表示认证信息生成的时间的时间信息。 服务器发送单元发送由客户接收单元接收的证明信息。 时间信息获取单元从证明信息获取表示认证信息生成时间的时间信息。 报告生成单元生成报告数据，其中表示发布目的地的时间信息和发布目的地信息被包括在原始数据中。 转移单元将原始数据，证明信息和报告数据传送到发布报告数据的发布服务器。 输出单元输出报告数据。

公开(公告)号：US08819441B2

公开(公告)日：2014-08-26

申请号：US13508752

申请日：2010-07-06

申请人： Shinichi Murao ,  Masakazu Uehata ,  Koichi Shibata

发明人： Shinichi Murao ,  Masakazu Uehata ,  Koichi Shibata

IPC分类号： H04L9/32 ,  G06F15/16 ,  G06F21/64

CPC分类号： H04L9/3247 ,  G06F21/64 ,  H04L9/3236 ,  H04L9/3263 ,  H04L9/3268 ,  H04L9/3297 ,  H04L2209/68

摘要： A long-term signature server includes a signing target data acquisition function for acquiring signing target data, a signature data transmission function for transmitting to a long-term signature terminal signature data for the electronic-signing of the acquired signing target data, a signature value reception function for receiving an electronic signature value of the signing target data generated using the signature data transmitted from the long-term signature terminal, a time stamp acquisition function for acquiring a time stamp corresponding to the received electronic signature value, and a signature data generation function for generating basic signature data using at least the acquired signing target data, the received electronic signature value, and the acquired time stamp.

摘要翻译： 长期签名服务器包括用于获取签名目标数据的签名目标数据获取功能，用于向长期签名终端发送用于所取得的签名目标数据的电子签名的签名数据的签名数据传输功能，签名值 用于接收使用从长期签名终端发送的签名数据生成的签名对象数据的电子签名值的接收功能，用于获取与接收的电子签名值对应的时间戳的时间戳获取功能，以及签名数据生成 用于使用至少所获取的签名目标数据，所接收的电子签名值和所获取的时间戳来生成基本签名数据的功能。