公开(公告)号：US07724906B2

公开(公告)日：2010-05-25

申请号：US11219768

申请日：2005-09-07

申请人： Tatsuyuki Matsushita

发明人： Tatsuyuki Matsushita

IPC分类号： H04L9/00

CPC分类号： H04L9/0836 ,  H04L9/0894

摘要： A decryption apparatus stores secret keys, each of which is specified by two nodes in tree structure in first memory, one of the two nodes indicated by ciphertext index information item of the decryptable ciphertext being an ancestor node of leaf and the other of the two nodes being a node which is not an ancestor node of leaf, and stores an identifier of decryption apparatus corresponding to a leaf in a tree structure in a second memory. The decryption apparatus acquires a plurality of ciphertexts, each ciphertext including a ciphertext index information item indicating two nodes in the tree structure which correspond to a decryption key for decrypting the respective ciphertext, and acquires a decryptable ciphertext from the plurality of ciphertexts. Further, the decryption apparatus selects, from the stored secret keys, a secret key corresponding to the respective ciphertext, and derives a decryption key from the selected secret key to decrypt the decryptable ciphertext by using the derived decryption key.

摘要翻译： 解密装置存储秘密密钥，每个秘密密钥由第一存储器中的树结构中的两个节点指定，由可解密密文的密文索引信息项指示的两个节点之一是叶的祖先节点，并且两个节点中的另一个节点 作为不是叶子的祖先节点的节点，并且将对应于树结构中的叶片的解密装置的标识符存储在第二存储器中。 解密装置获取多个密文，每个密文包括指示与解密密钥对应的树结构中的两个节点的密文索引信息项，用于解密各密文，并从多个密文中获取可解密的密文。 此外，解密装置从所存储的秘密密钥中选择与各密文对应的秘密密钥，并从所选择的秘密密钥中导出解密密钥，通过使用导出的解密密钥对可解密的密文进行解密。

公开(公告)号：US07134600B2

公开(公告)日：2006-11-14

申请号：US10720100

申请日：2003-11-25

申请人： Yuuki Tomoeda ,  Hiroshi Watanabe ,  Hideo Shimizu ,  Kenji Kojima ,  Tatsuyuki Matsushita ,  Kentaro Umesawa ,  Hideyuki Miyake

发明人： Yuuki Tomoeda ,  Hiroshi Watanabe ,  Hideo Shimizu ,  Kenji Kojima ,  Tatsuyuki Matsushita ,  Kentaro Umesawa ,  Hideyuki Miyake

IPC分类号： G06K7/08

CPC分类号： G06F21/32 ,  G06F21/31 ,  G06F21/73 ,  G06F21/77 ,  G06F2221/2137 ,  G06F2221/2143 ,  G06F2221/2153 ,  G06K7/006 ,  G06K13/085 ,  G06K19/073 ,  G06K19/07345 ,  G06Q20/341 ,  G07F7/082 ,  G07F7/1008 ,  H01L29/7883

摘要： A method of setting validity period of IC card, comprises preparing IC card including change unit whose state changes with lapse of time starting from initial state without external power, measuring unit configured to measure state of change unit so as to generate information indicating whether or not validity period has elapsed, and operation unit configured to be operable if information indicates that validity period fails to have yet elapsed, and to be inoperable if information indicates that validity period has elapsed, preparing IC card case capable to house IC card by user, IC card case including identification unit configured to determine whether or not user is legitimate, performing user identification utilizing identification unit, when IC card is housed in IC card case, and transmitting signal to change unit in IC card depending on result of user identification, signal initializing change unit to initial state.

摘要翻译： 一种设置IC卡的有效期的方法，包括准备IC卡，包括状态随着时间的推移而从外部电源的初始状态改变的改变单元，测量单元被配置为测量改变单元的状态，以产生指示是否改变单元的状态的信息 有效期已经过去，并且操作单元被配置为在信息表示有效期不能够经过的情况下可操作，并且如果信息表示有效期已经过去，则不可操作，准备用户可容纳IC卡的IC卡盒 卡盒，包括识别单元，其被配置为确定用户是否合法，使用识别单元执行用户识别，当IC卡容纳在IC卡盒中时，根据用户识别结果向IC卡中的改变单元发送信号，信号初始化 将单位更改为初始状态。

公开(公告)号：US20060204008A1

公开(公告)日：2006-09-14

申请号：US11219768

申请日：2005-09-07

申请人： Tatsuyuki Matsushita

发明人： Tatsuyuki Matsushita

IPC分类号： H04K1/00

CPC分类号： H04L9/0836 ,  H04L9/0894

摘要： A decryption apparatus stores secret keys, each of which is specified by two nodes in tree structure in first memory, stores identifier of decryption apparatus corresponding to leaf in tree structure in second memory, acquires ciphertext and ciphertext index information item indicating two nodes, in the tree structure, which correspond to decryption key for decrypting ciphertext, to obtain ciphertexts and ciphertext index information items corresponding to respective ciphertexts, acquires decryptable ciphertext from ciphertexts, one of the two nodes indicated by ciphertext index information item of decryptable ciphertext being ancestor node of leaf and the other of the two nodes being node which is not ancestor node of leaf, selects, from secret keys stored, secret key from which decryption key is derived, derives decryption key from secret key selected, and decrypts decryptable ciphertext by using decryption key derived.

摘要翻译： 解密装置存储秘密密钥，每个密钥由第一存储器中的树结构中的两个节点指定，在第二存储器中存储与树结构对应的解密装置的标识符，获取指示两个节点的密文和密文索引信息项， 对应于解密密文的解密密钥，获得与各密文对应的密文和密文索引信息项的树结构，从密文获取可解密密文，由可解密密文的密文索引信息项表示的两个节点之一表示为叶的祖先节点 并且两个节点中的另一个是不是叶子的祖先节点的节点，从存储的秘密密钥中选择从其导出解密密钥的秘密密钥，从所选择的秘密密钥导出解密密钥，并通过使用解密密钥对解密密文进行解密 。

公开(公告)号：US20050286437A1

公开(公告)日：2005-12-29

申请号：US11019349

申请日：2004-12-23

申请人： Tatsuyuki Matsushita ,  Hiroshi Isozaki

发明人： Tatsuyuki Matsushita ,  Hiroshi Isozaki

IPC分类号： G01R31/08 ,  H04J1/16 ,  H04L29/06 ,  H04L29/08

CPC分类号： H04L63/061 ,  H04L63/0435

摘要： An information-processing device for communicating with a communication device includes a RTT measurement unit configured to measure a round trip time between the information-processing device and the communication device, a RTT judgment unit configured to determine whether the round trip time exceeds a predetermined upper limit value, a unit-type information acquiring unit configured to acquire an identification of the communication device when the round trip time is not greater than the upper limit value, a limit value judgment unit configured to measure amount of cumulative information accumulated during content is transmitted to the communication device, a cumulative information storage unit configured to store the measured amount of cumulative information, and a cumulative information management unit configured to control to store the cumulative information in the cumulative information storage unit when the amount of cumulative information exceeds a given limit value.

摘要翻译： 用于与通信设备进行通信的信息处理设备包括：RTT测量单元，被配置为测量信息处理设备和通信设备之间的往返时间; RTT判断单元，被配置为确定往返时间是否超过预定的上限 单位型信息获取单元，被配置为当往返行程时间不大于上限值时获取通信设备的标识;被配置为测量在内容期间累积的累积信息量的限制值判断单元被发送 累积信息存储单元，被配置为存储测量的累积信息量;累积信息管理单元，被配置为当累积信息量超过给定极限时，将累积信息存储在累积信息存储单元中; 值。

公开(公告)号：US06945467B2

公开(公告)日：2005-09-20

申请号：US10965774

申请日：2004-10-18

申请人： Kenji Kojima ,  Kentaro Umesawa ,  Hideyuki Miyake ,  Tatsuyuki Matsushita ,  Yuuki Tomoeda ,  Hideo Shimizu ,  Hiroshi Watanabe

发明人： Kenji Kojima ,  Kentaro Umesawa ,  Hideyuki Miyake ,  Tatsuyuki Matsushita ,  Yuuki Tomoeda ,  Hideo Shimizu ,  Hiroshi Watanabe

IPC分类号： G06K19/073 ,  G07F7/10 ,  G06K19/06

CPC分类号： G06Q20/341 ,  G06K19/073 ,  G07F7/1008 ,  G07F7/1083

摘要： IC card receiving power from terminal and performing process, IC card comprises storage storing first identification information uniquely assigned to IC card, acquisition unit acquiring second identification information from terminal, first timer including first change unit whose state changes with lapse of time without power, state of first change unit changing from first initial state to final state via intermediate state, first timer outputting first signal indicative of changed state of first change unit when IC card receives power, comparison unit comparing second identification information with first identification information, determining whether second identification information and first identification information are identical, and providing first initializing signal according to at least one of determined results, and controller initializing first change unit to first initial state when receiving first initializing signal, controller further controlling IC card to make it inhibit process until state of first change unit changes to intermediate state.

公开(公告)号：US20050045731A1

公开(公告)日：2005-03-03

申请号：US10965774

申请日：2004-10-18

申请人： Kenji Kojima ,  Kentaro Umesawa ,  Hideyuki Miyake ,  Tatsuyuki Matsushita ,  Yuuki Tomoeda ,  Hideo Shimizu ,  Hiroshi Watanabe

发明人： Kenji Kojima ,  Kentaro Umesawa ,  Hideyuki Miyake ,  Tatsuyuki Matsushita ,  Yuuki Tomoeda ,  Hideo Shimizu ,  Hiroshi Watanabe

IPC分类号： G06K19/073 ,  G07F7/10 ,  G06K19/06

CPC分类号： G06Q20/341 ,  G06K19/073 ,  G07F7/1008 ,  G07F7/1083

摘要： IC card receiving power from terminal and performing process, IC card comprises storage storing first identification information uniquely assigned to IC card, acquisition unit acquiring second identification information from terminal, first timer including first change unit whose state changes with lapse of time without power, state of first change unit changing from first initial state to final state via intermediate state, first timer outputting first signal indicative of changed state of first change unit when IC card receives power, comparison unit comparing second identification information with first identification information, determining whether second identification information and first identification information are identical, and providing first initializing signal according to at least one of determined results, and controller initializing first change unit to first initial state when receiving first initializing signal, controller further controlling IC card to make it inhibit process until state of first change unit changes to intermediate state.

摘要翻译： IC卡从终端接收电力和执行处理，IC卡包括存储唯一地分配给IC卡的第一识别信息，获取单元从终端获取第二识别信息，第一定时器包括其状态随着时间的流逝随着时间的变化而没有电力状态 第一变化单元经由中间状态从第一初始状态改变到最终状态，当IC卡接收到电力时，第一定时器输出指示第一改变单元的状态的第一信号，比较单元将第二识别信息与第一识别信息进行比较，确定第二识别 信息和第一识别信息是相同的，并且根据确定的结果中的至少一个提供第一初始化信号，并且当接收到第一初始化信号时，控制器将第一改变单元初始化为第一初始状态，控制器进一步控制IC卡使其进入 hibit进程直到第一个更改单元的状态变为中间状态。

公开(公告)号：US20150074406A1

公开(公告)日：2015-03-12

申请号：US13520051

申请日：2012-05-25

申请人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita ,  Shinichi Matsukawa ,  Yasufumi Tsumagari

发明人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita ,  Shinichi Matsukawa ,  Yasufumi Tsumagari

IPC分类号： G06F21/44 ,  H04L9/08 ,  H04L9/32

CPC分类号： G06F21/44 ,  G06F2221/2129 ,  H04L9/0869 ,  H04L9/0877 ,  H04L9/32 ,  H04L9/3234

摘要： For authentication of the host device, the memory device is configured to output the encrypted second key information (FKB) to the host device, output the encrypted identification information (E-SecretID) to the host device, generate third third key information (Hkey) using information (HC) received from the host device and the first key information, generate a session key (Skey) using a random number (RN) received from the host device, and the third key information, generate authentication information (Oneway-ID) by performing a one-way conversion process on the identification information, using the session key, and output the authentication information (Oneway-ID) to the host device.

摘要翻译： 为了对主机进行认证，存储装置被配置为将加密的第二密钥信息（FKB）输出到主机装置，将加密的识别信息（E-SecretID）输出到主机装置，生成第三密钥信息（Hkey） 使用从主机设备接收的信息（HC）和第一密钥信息，使用从主机设备接收的随机数（RN）和第三密钥信息生成会话密钥（Skey），生成认证信息（Oneway-ID） 通过使用会话密钥对识别信息进行单向转换处理，并将该认证信息（Oneway-ID）输出到主机装置。

公开(公告)号：US08762717B2

公开(公告)日：2014-06-24

申请号：US13524805

申请日：2012-06-15

申请人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita

发明人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita

IPC分类号： H04L9/32

CPC分类号： G06F21/602 ,  G06F21/10 ,  G06F21/74 ,  G06F2221/0711 ,  G06F2221/0748 ,  G06F2221/0771 ,  G06Q20/35765 ,  G07F7/1016 ,  H04L9/3234

摘要： According to one embodiment, a device includes a cell array including an ordinary area, a hidden area, and an identification information record area in which identification information which defines a condition for accessing the hidden area is recorded. An authentication circuit performs authentication. A sensing circuit recognizes information recorded in the identification information storage area, determines the information recorded in the identification information record area when an access request selects the hidden area, validates an access to the hidden area when determined that the identification information is recorded, and invalidates an access to the hidden area when determined that the identification information is not recorded.

摘要翻译： 根据一个实施例，一种装置包括一个单元阵列，包括普通区域，隐藏区域和识别信息记录区域，其中记录了定义用于访问隐藏区域的条件的识别信息。 认证电路执行认证。 感测电路识别记录在识别信息存储区域中的信息，当访问请求选择隐藏区域时，确定记录在识别信息记录区域中的信息，当确定识别信息被记录时验证对隐藏区域的访问，并且无效 当确定没有记录识别信息时对隐藏区域的访问。

公开(公告)号：US08726024B2

公开(公告)日：2014-05-13

申请号：US13523128

申请日：2012-06-14

申请人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita

发明人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita

IPC分类号： H04L9/32

CPC分类号： G06F12/1408 ,  G06F2212/1052 ,  H04L9/0861 ,  H04L9/3273

摘要： According to one embodiment, a authentication method comprising: generating a second key by the first key, the first key being stored in a memory and being prohibited from being read from outside; generating a session key by the second key; generating first authentication information, the secret identification information stored in a memory and being prohibited from being read from outside; transmitting encrypted secret identification information to an external device and receiving second authentication information from the external device, the encrypted secret identification information stored in a memory and readable, the second authentication information generated based on the encrypted secret identification information; and determining whether the first authentication information and the second authentication information match.

摘要翻译： 根据一个实施例，一种认证方法，包括：通过第一密钥生成第二密钥，第一密钥存储在存储器中并被禁止从外部读取; 通过第二个密钥生成会话密钥; 生成第一认证信息，存储在存储器中并被禁止从外部读取的秘密识别信息; 向外部设备发送加密的秘密识别信息并从外部设备接收第二认证信息，所述加密的秘密识别信息存储在存储器中并且可读，所述第二认证信息是基于所述加密的秘密识别信息生成的; 以及确定所述第一认证信息和所述第二认证信息是否匹配。

公开(公告)号：US08650398B2

公开(公告)日：2014-02-11

申请号：US13523208

申请日：2012-06-14

申请人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita

发明人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita

IPC分类号： G06F21/00

CPC分类号： G06F12/1408 ,  H04L9/0877 ,  H04L9/0897 ,  H04L9/3234 ,  H04L9/3271

摘要： A device includes a first memory area being used to store a first key and unique secret identification information, the first memory area being restricted from being read and written from outside; a second memory area being used to store encrypted secret identification information generated by encrypting the secret identification information, the second memory area being allowed to be read-only from outside; a third memory area being readable and writable from outside; a first data generator configured to generate a second key by using the first key; a second data generator configured to generate a session key by using the second key; and a one-way function processor configured to generate an authentication information by processing the secret identification information with the session key in one-way function operation, wherein the encrypted secret identification information and the authentication information are output to outside.

摘要翻译： 一种设备包括用于存储第一密钥的第一存储区域和唯一的秘密识别信息，所述第一存储区域被限制为从外部读取和写入; 第二存储区域用于存储通过加密秘密识别信息而生成的加密的秘密识别信息，第二存储区域被允许从外部只读; 第三存储区域可从外部读取和写入; 配置为通过使用所述第一密钥生成第二密钥的第一数据生成器; 第二数据生成器，被配置为通过使用所述第二密钥来产生会话密钥; 以及单向功能处理器，被配置为通过在单向功能操作中用会话密钥处理秘密识别信息来生成认证信息，其中将加密的秘密识别信息和认证信息输出到外部。