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    • 2. 发明申请
    • INFORMATION SECURITY APPARATUS
    • 信息安全设备
    • US20100031065A1
    • 2010-02-04
    • US12443736
    • 2007-11-02
    • Yuichi FutaKaoru YokotaMasao NonakaManabu MaedaNatsume Matsuzaki
    • Yuichi FutaKaoru YokotaMasao NonakaManabu MaedaNatsume Matsuzaki
    • G06F12/14G06F11/07
    • H04L9/3242H03K3/0315H04L9/0866
    • Provided is an information security apparatus (1100) that has enhanced stability and confidentiality of a hash key. The information security apparatus (1100) includes an information generating PUF unit (1104) that has tamper resistance set, using physical characteristics, so as to output a preset hash key, a partial error-correction information storage unit (1107) that stores partial error-correction information, an error correcting PUF unit (1106) that has tamper-resistance set, using physical characteristics, so as to output error-correcting PUF information, an error-correction information generating unit (1108) that generates error-correction information using partial correction information and the error-correcting PUF information, and an error correcting unit (1105) that corrects an error for the hash key outputted from the information generating PUF unit (1104) and outputs an error-corrected hash key.
    • 提供了具有增强的散列密钥的稳定性和机密性的信息安全装置(1100)。 信息安全装置(1100)包括使用物理特性设置了防篡改设置的信息生成PUF单元(1104),以便输出预设的散列密钥,存储部分错误的部分纠错信息存储单元(1107) 校正信息,使用物理特性设置了防篡改设置的纠错PUF单元(1106),以便输出纠错PUF信息;纠错信息生成单元(1108),其使用 部分校正信息和错误校正PUF信息,以及纠错单元(1105),其纠正从信息生成PUF单元(1104)输出的散列密钥的错误,并输出纠错散列密钥。
    • 3. 发明申请
    • GROUP SUBORDINATE TERMINAL, GROUP MANAGING TERMINAL, SERVER, KEY UPDATING SYSTEM, AND KEY UPDATING METHOD THEREFOR
    • 集团子终端,集团管理终端,服务器,主要更新系统及其主要更新方法
    • US20100014677A1
    • 2010-01-21
    • US12147126
    • 2008-06-26
    • Taichi SatoKaoru YokotaNatsume MatsuzakiYuichi FutaTetsuya InoueMasao Nonaka
    • Taichi SatoKaoru YokotaNatsume MatsuzakiYuichi FutaTetsuya InoueMasao Nonaka
    • H04L9/08
    • H04L9/0833H04L9/0891H04L2209/60
    • Provided is a group subordinate terminal in a key updating system that includes a server and a group of terminals including: a group managing terminal; and group subordinate terminals including the group subordinate terminal, the group subordinate terminal comprising: a group withdrawal request processing unit which transmits a group withdrawal request to the group managing terminal in response to an instruction to update its apparatus-unique key, the group withdrawal request requesting for withdrawal of the group subordinate terminal from the group; an update apparatus-unique key requesting unit which requests for another apparatus-unique key by transmitting to the server a group withdrawal certificate indicating that the withdrawal of the group subordinate terminal from the group of terminals is completed through invalidation of its group key; and an update processing unit which updates the apparatus-unique key held in an apparatus-unique key holding unit to the another apparatus-unique key obtained from the server.
    • 提供了一种密钥更新系统中的组下属终端,其包括服务器和一组终端,包括:组管理终端; 组群下属终端包括:群组提取请求处理单元,响应于更新其装置唯一密钥的指令向组管理终端发送组提款请求,组提款请求 要求集团下属终端从集团撤出; 更新设备唯一密钥请求单元,其通过向服务器发送指示通过其组密钥的无效来完成组从属终端的撤销而完成的组取出证书来请求另一设备唯一密钥; 以及更新处理单元,其将从设备唯一密钥保存单元保存的设备唯一密钥更新为从服务器获得的另一设备唯一密钥。
    • 6. 发明授权
    • Generating PUF error correcting code using redundant hardware
    • 使用冗余硬件生成PUF纠​​错码
    • US08510608B2
    • 2013-08-13
    • US12443736
    • 2007-11-02
    • Yuichi FutaKaoru YokotaMasao NonakaManabu MaedaNatsume Matsuzaki
    • Yuichi FutaKaoru YokotaMasao NonakaManabu MaedaNatsume Matsuzaki
    • G06F11/08G06F11/16
    • H04L9/3242H03K3/0315H04L9/0866
    • Provided is an information security apparatus that has enhanced stability and confidentiality of a hash key. The information security apparatus includes an information generating PUF unit that has tamper resistance set, using physical characteristics, so as to output a preset hash key, a partial error-correction information storage unit that stores partial error-correction information, an error correcting PUF unit that has tamper-resistance set, using physical characteristics, so as to output error-correcting PUF information, an error-correction information generating unit that generates error-correction information using partial correction information and the error-correcting PUF information, and an error correcting unit that corrects an error for the hash key outputted from the information generating PUF unit and outputs an error-corrected hash key.
    • 提供了一种具有增强的散列密钥的稳定性和机密性的信息安全装置。 信息安全装置包括使用物理特性设置了防篡改设置的信息生成PUF单元,以输出预设的散列密钥,存储部分纠错信息的部分纠错信息存储单元,纠错PUF单元 具有使用物理特性的防篡改集,以输出纠错PUF信息;纠错信息生成单元,其使用部分校正信息和纠错PUF信息生成错误校正信息,以及错误校正 用于校正从信息生成PUF单元输出的散列密钥的错误的单元,并输出纠错散列密钥。
    • 7. 发明授权
    • Authenticator apparatus
    • 认证机器
    • US08347091B2
    • 2013-01-01
    • US12438901
    • 2007-11-02
    • Masao NonakaNatsume MatsuzakiYoshikatsu ItoKaoru YokotaYuichi FutaManabu Maeda
    • Masao NonakaNatsume MatsuzakiYoshikatsu ItoKaoru YokotaYuichi FutaManabu Maeda
    • G06F21/00
    • G06F21/31H04L9/3278
    • An authenticator apparatus which makes it difficult for an unauthorized user to masquerade and enhances safety includes an authenticating information holding unit (102) previously stores characteristic information indicating an input and output characteristic involving an environment change of an authentic authenticatee apparatus entitled to be authentic, an authenticating information transmitting unit (107) which transmits authenticating information to a portable medium (2), a response information receiving unit (108) which receives response information outputted from the portable medium (2) in response to an input of the authenticating information, an environment selecting unit (105) which identifies an environment of the portable medium (2), and a response information confirming unit (109) which determines whether or not the authenticating information and the response information satisfy the input and output characteristic indicated in the characteristic information stored in the authenticating information holding unit (102), and judges that the portable medium (2) is authentic in the case where the input and output characteristic is satisfied, the authenticating information and the response information being in the environment identified by said environment identifying unit.
    • 使非法用户难以伪装并提高安全性的认证装置包括:认证信息保存单元(102)预先存储指示涉及有权认证的真实认证设备的环境变化的输入和输出特性的特征信息, 响应信息接收单元,响应于所述认证信息的输入,接收从所述便携式介质输出的响应信息;响应信息接收单元,用于向所述便携式介质发送认证信息;响应信息接收单元, 识别便携式介质(2)的环境的环境选择单元(105)以及响应信息确认单元(109),其确定认证信息和响应信息是否满足特征信息中指示的输入和输出特性 储存在澳大利亚 在所述输入输出特性满足的情况下判定所述便携式介质(2)是可信的,所述认证信息保持单元(102),所述认证信息和所述响应信息在由所述环境识别单元识别的环境中。
    • 8. 发明申请
    • AUTHENTICATOR APPARATUS
    • 认证机器人
    • US20090271860A1
    • 2009-10-29
    • US12438901
    • 2007-11-02
    • Masao NonakaNatsume MatsuzakiYoshikatsu ItoKaoru YokotaYuichi FutaManabu Maeda
    • Masao NonakaNatsume MatsuzakiYoshikatsu ItoKaoru YokotaYuichi FutaManabu Maeda
    • H04L9/32
    • G06F21/31H04L9/3278
    • An authenticator apparatus which makes it difficult for an unauthorized user to masquerade and enhances safety includes an authenticating information holding unit (102) previously stores characteristic information indicating an input and output characteristic involving an environment change of an authentic authenticatee apparatus entitled to be authentic, an authenticating information transmitting unit (107) which transmits authenticating information to a portable medium (2), a response information receiving unit (108) which receives response information outputted from the portable medium (2) in response to an input of the authenticating information, an environment selecting unit (105) which identifies an environment of the portable medium (2), and a response information confirming unit (109) which determines whether or not the authenticating information and the response information satisfy the input and output characteristic indicated in the characteristic information stored in the authenticating information holding unit (102), and judges that the portable medium (2) is authentic in the case where the input and output characteristic is satisfied, the authenticating information and the response information being in the environment identified by said environment identifying unit.
    • 使非法用户难以伪装并提高安全性的认证装置包括:认证信息保存单元(102)预先存储指示涉及有权认证的真实认证设备的环境变化的输入和输出特性的特征信息, 响应信息接收单元,响应于所述认证信息的输入,接收从所述便携式介质输出的响应信息;响应信息接收单元,用于向所述便携式介质发送认证信息;响应信息接收单元, 识别便携式介质(2)的环境的环境选择单元(105)以及响应信息确认单元(109),其确定认证信息和响应信息是否满足特征信息中指示的输入和输出特性 储存在澳大利亚 在所述输入输出特性满足的情况下判定所述便携式介质(2)是可信的,所述认证信息保持单元(102),所述认证信息和所述响应信息在由所述环境识别单元识别的环境中。
    • 10. 发明授权
    • Encryption device and encryption system
    • 加密设备和加密系统
    • US08484485B2
    • 2013-07-09
    • US12936740
    • 2009-05-14
    • Masao NonakaYuichi FutaKaoru YokotaNatsume Matsuzaki
    • Masao NonakaYuichi FutaKaoru YokotaNatsume Matsuzaki
    • G06F11/30G06F12/14H04K1/00H04L9/00H04L9/28
    • H04L9/3093H04L2209/08H04L2209/127H04L2209/805H04L2209/88
    • An encryption apparatus prevents plaintext data from leaking even if accumulated data is analyzed, while preventing the size of encrypted data from increasing. The encryption apparatus encrypts a data piece that is smaller than a unit length and stores management information indicating a used area within an encryption area defined based on the unit length. The used area is an area already used for encryption. When encrypting a new data piece that is smaller than the unit length, the encryption apparatus generates encrypted data by adding the new data piece to an unused area within the encryption area with reference to the management information. The unused area is an area not yet used for encryption. The encryption apparatus updates the management information to include an area for the new data piece into the used area, after generating the encrypted data.
    • 即使分析了累积数据,加密装置也防止明文数据泄漏,同时防止加密数据的大小增加。 加密装置对小于单位长度的数据进行加密,并将指示使用区域的管理信息存储在基于单位长度定义的加密区域内。 使用区域是已经用于加密的区域。 当加密小于单位长度的新的数据段时,加密装置通过参考管理信息将新的数据段添加到加密区域内的未使用区域来生成加密数据。 未使用的区域是尚未用于加密的区域。 在生成加密数据之后,加密装置更新管理信息以将新数据段的区域包括到使用区域中。