公开(公告)号：US20110119499A1

公开(公告)日：2011-05-19

申请号：US13011392

申请日：2011-01-21

申请人： YASUHIRO NAKAMOTO ,  Junichi Hayashi

发明人： YASUHIRO NAKAMOTO ,  Junichi Hayashi

IPC分类号： G06F12/14

CPC分类号： H04L9/0861 ,  H04L9/0894

摘要： An information processing apparatus that generates private information used as one of an encryption key for encrypting data or a generation key for generating falsification detection information used in detecting falsification of data, comprises a storage unit adapted to prestore key information, an input unit adapted to input calculation target information, a calculating unit adapted to perform a calculation on targeted information based on the key information held in the storage unit, a detecting unit adapted to detect a predetermined event, and a control unit adapted, when triggered by detection of the event by the detecting unit, to perform controls to generate the private information by making the calculating unit perform the calculation with the input calculation target information as the targeted information, and to place the key information stored in the storage unit in an unusable state.

摘要翻译： 一种信息处理装置，其生成用作加密数据的加密密钥之一的私有信息或用于产生用于检测数据伪造的伪造检测信息的生成密钥，包括适于预存密钥信息的存储单元，适于输入的输入单元 计算对象信息，计算单元，其适于基于保存在存储单元中的关键信息对目标信息进行计算;适合于检测预定事件的检测单元;以及控制单元，当通过检测事件触发时， 所述检测单元通过使所述计算单元以所输入的计算目标信息作为目标信息进行计算，并且将存储在所述存储单元中的所述密钥信息置于不可用状态来执行用于生成所述私人信息的控制。

公开(公告)号：US08340347B2

公开(公告)日：2012-12-25

申请号：US12624293

申请日：2009-11-23

申请人： Junichi Hayashi ,  Yoshiharu Imamoto ,  Nobuhiro Tagashira ,  Kazuya Kishi ,  Yasuhiro Nakamoto ,  Kazuomi Oishi

发明人： Junichi Hayashi ,  Yoshiharu Imamoto ,  Nobuhiro Tagashira ,  Kazuya Kishi ,  Yasuhiro Nakamoto ,  Kazuomi Oishi

IPC分类号： G06K9/00

CPC分类号： G06T1/0028 ,  G06T1/0064 ,  G06T2201/0201

摘要： This invention provides a technique of preventing determination of image alteration when digital image data has undergone, e.g., rotation without any substantial change in contents. To do this, an area separation processing unit separates image data into areas. For each of the separated areas, an area feature value calculator calculates an area feature value independent of the coordinate information of the image. An area order sorter sorts the separated areas in accordance with the calculated area feature values. A validation data generation processing unit generates validation data based on the sort result.

摘要翻译： 本发明提供了当数字图像数据经历例如旋转而没有任何实质内容改变时防止图像变化的确定的技术。 为此，区域分离处理单元将图像数据分离成区域。 对于每个分离区域，区域特征值计算器计算与图像的坐标信息无关的区域特征值。 区域排序排序器根据计算的区域特征值对分离的区域进行排序。 验证数据生成处理单元基于分类结果生成验证数据。

公开(公告)号：US20070192250A1

公开(公告)日：2007-08-16

申请号：US11621785

申请日：2007-01-10

申请人： Yasuhiro Nakamoto ,  Junichi Hayashi

发明人： Yasuhiro Nakamoto ,  Junichi Hayashi

IPC分类号： H04L9/00 ,  H04K1/00

CPC分类号： H04L9/0861 ,  H04L9/0894

摘要： An information processing apparatus that generates private information used as one of an encryption key for encrypting data or a generation key for generating falsification detection information used in detecting falsification of data, comprises a storage unit adapted to prestore key information, an input unit adapted to input calculation target information, a calculating unit adapted to perform a calculation on targeted information based on the key information held in the storage unit, a detecting unit adapted to detect a predetermined event, and a control unit adapted, when triggered by detection of the event by the detecting unit, to perform controls to generate the private information by making the calculating unit perform the calculation with the input calculation target information as the targeted information, and to place the key information stored in the storage unit in an unusable state.

摘要翻译： 一种信息处理装置，其生成用作加密数据的加密密钥之一的私有信息或用于产生用于检测数据伪造的伪造检测信息的生成密钥，包括适于预存密钥信息的存储单元，适于输入的输入单元 计算对象信息，计算单元，其适于基于保存在存储单元中的关键信息对目标信息进行计算;适合于检测预定事件的检测单元;以及控制单元，当通过检测事件触发时， 所述检测单元通过使所述计算单元以所输入的计算目标信息作为目标信息进行计算，并且将存储在所述存储单元中的所述密钥信息置于不可用状态来执行用于生成所述私人信息的控制。