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    • 3. 发明申请
    • DATA PROCESSING DEVICE
    • 数据处理设备
    • US20120207299A1
    • 2012-08-16
    • US13504506
    • 2009-10-29
    • Mitsuhiro HattoriYoichi ShibataTakashi ItoNori MatsudaKatsuyuki TakashimaTakeshi Yoneda
    • Mitsuhiro HattoriYoichi ShibataTakashi ItoNori MatsudaKatsuyuki TakashimaTakeshi Yoneda
    • H04L9/30
    • H04L9/3073H04L9/008H04L9/3231
    • A certification device 101 encrypts a feature vector for registration by using a random number and a public key which is set to correspond to a secret key in a decryption device 103. The encrypted feature vector for registration is registered in an authentication device 102. In authentication, the certification device encrypts a feature vector for authentication by using the public key and a random number. With the two encrypted feature vectors being kept encrypted, the authentication device generates encrypted similarity degree information from which the decryption device can derive the similarity degree between the two feature vectors by a decryption process using the secret key. The decryption device 103 decrypts the encrypted similarity degree information to derive the similarity degree of the plaintext. The authentication device 102, if the similarity degree is equal to or larger than a threshold, determines that the user is the correct user. The similarity degree can be derived without using the feature vector of the plaintext. Thus, secure identity authentication with a lower possibility of plaintext theft can be realized.
    • 认证装置101通过使用设置为对应于解密装置103中的秘密密钥的随机数和公开密钥对用于注册的特征向量进行加密。用于注册的加密特征向量被登记在认证装置102中。在认证 ,认证装置通过使用公钥和随机数加密特征向量进行认证。 在两个加密特征向量保持加密的情况下,认证装置生成加密的相似度信息,解密装置可以通过使用秘密密钥的解密处理从两个特征向量之间导出相似度。 解密装置103对加密的相似度信息进行解密,得到明文的相似度。 认证装置102如果相似度等于或大于阈值,则确定用户是正确的用户。 可以在不使用明文的特征向量的情况下导出相似度。 因此,可以实现具有较低的明文盗窃可能性的安全身份认证。
    • 4. 发明申请
    • SECRET INFORMATION MANAGEMENT APPARATUS, INFORMATION PROCESSING APPARATUS, AND SECRET INFORMATION MANAGEMENT SYSTEM
    • 秘密信息管理装置,信息处理装置和秘密信息管理系统
    • US20110016510A1
    • 2011-01-20
    • US12920606
    • 2009-03-05
    • Nori MatsudaMitsuhiro HattoriTakeshi Yoneda
    • Nori MatsudaMitsuhiro HattoriTakeshi Yoneda
    • G06F12/14G06F21/00
    • H04L9/0894
    • Secret key backup is safely implemented even if a role base access structure in which the access structure is specified using roles is used. An all combination generating unit 107 obtains a backup participating user list 201 which is a list of backup participating users and a list of validated roles validated by the users, and a role base access structure 202 which is a combination of specified roles by which a secret key 205 can be restored, and generates an all combination extracted result which is all combinations of restoration enabling users of the secret key by applying users described in the backup participating user list 201 to the specified role. A same user/role deleting unit 108, etc. deletes a combination showing the same user redundantly, etc. from the all combination extracted result, a general access structure secret distributing unit 114 generates fragments of secret key from the secret key, and distributes the fragments of secret key to the combinations of users from which the redundancy is removed.
    • 使用秘密密钥备份即使使用使用角色指定访问结构的角色基础访问结构也可实施。 所有组合生成单元107获得作为备用参与用户的列表的备份参与用户列表201和由用户验证的验证角色的列表,以及作为特定角色的组合的角色基础访问结构202,其中秘密 可以恢复密钥205,并且通过将备份参与用户列表201中描述的用户应用于指定的角色来生成全部组合提取结果,所述组合是所述秘密密钥的恢复使能用户的所有组合。 一般的访问结构秘密分发单元114从秘密密钥生成秘密密钥的片段,并且分配相同的用户/角色删除单元108等从全部组合提取结果冗余地删除相同用户的组合等, 删除冗余的用户的组合的秘密密钥的片段。
    • 6. 发明授权
    • Anti-rolling structure for double headed piston of disc cam type
reciprocative compressor
    • 盘式凸轮式往复式压缩机双头活塞防滚动结构
    • US4756239A
    • 1988-07-12
    • US122256
    • 1987-11-18
    • Mitsuhiro HattoriKatsunori KawaiMasayuki TanikawaTakashi Okamoto
    • Mitsuhiro HattoriKatsunori KawaiMasayuki TanikawaTakashi Okamoto
    • F04B27/08F01B3/00F04B1/12
    • F04B27/0882F04B27/0878Y10T74/18304
    • An anti-rolling structure for a double headed piston of a disc cam type reciprocative compressor, comprising a cylinder block (1) through which a plurality of pairs of front and rear cylinder bores (4) are provided in parallel to a drive shaft (3) rotatably secured in the center of the cylinder block (1), and a double headed piston (8) slidably inserted in the respective pair of cylinder bores (4) for reciprocation in the longitudinal direction. A disc cam (13) having opposite sinuous surfaces (13') and rotatably accommodated within a cam chamber (5) is fixedly secured to the drive shaft (3), and a pair of front and rear cam rollers (14F, 14R) are arranged between the disc cam (13) and the piston (8) in a slidable and rotatable manner so as to nip the disc cam (13) between both cam rollers (14F, 14R) to transmit the rotation of the disc cam (13) to the piston (8) as a reciprocation in the longitudinal direction thereof. The front and rear cam rollers (14F, 14R) are positioned so that the axes of rotation thereof are not included in the center plane defined by longitudinal axes of the piston (8) and the disc cam (13) but disposed, respectively, in the opposite areas sectioned by the center plane with a substantially equal deviation from each other from the center plane. According to the above structure, the rolling motion of the piston (8) can be effectively restricted throughout the operation of the compressor.
    • 一种用于盘式凸轮式往复式压缩机的双头活塞的防滚动结构,包括一个气缸体(1),多个成对的前汽缸孔(4)与驱动轴(3)平行设置 )可旋转地固定在气缸体(1)的中心,以及双头活塞(8),其可滑动地插入在相应的一对气缸孔(4)中,用于在纵向方向上往复运动。 具有相对的弯曲表面(13')并且可旋转地容纳在凸轮室(5)内的盘形凸轮13固定地固定到驱动轴3上,并且一对前后凸轮辊14F,14R是 以可滑动和可旋转的方式布置在盘形凸轮(13)和活塞(8)之间,以便将盘式凸轮(13)夹在两个凸轮辊(14F,14R)之间以传递盘式凸轮(13)的旋转, (8)作为其纵向的往复运动。 前凸轮辊和后凸轮辊(14F,14R)定位成使得其旋转轴线不包括在由活塞(8)和盘形凸轮(13)的纵向轴线限定的中心平面中,但分别布置在 相对的区域被中心平面划分成与中心平面彼此基本相等的偏离。 根据上述结构,能够在压缩机的整个运转中有效地限制活塞(8)的滚动运动。