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    • 6. 发明授权
    • Pseudo public key encryption
    • 伪公钥加密
    • US08139766B2
    • 2012-03-20
    • US12558868
    • 2009-09-14
    • Akira KosekiTakeshi Imamura
    • Akira KosekiTakeshi Imamura
    • G06F21/00
    • H04L9/3242H04L2209/80
    • According to the present invention, a secret key cryptosystem and tamper-proof hardware are used to realize a pseudo-public key cryptosystem at a low cost. A trap-door one-way function is substantially realized with the use of tamper-proof hardware. Each user performs communication using equipment provided with hardware having the same capabilities described below. Such hardware retains association between an ID and a key. In response to a request from a user, the hardware issues and stores an ID, and it can perform decryption and generation of a MAC (message authentication code) with a key associated with the ID. A user publishes his ID. When performing encryption, a message sender encrypts a message using the published ID. A third person can perform decryption with the ID only by analyzing the mechanism in the hardware. However, the hardware has a capability of destroying itself when such an act is attempted.
    • 根据本发明,使用秘密密钥密码系统和防篡改硬件以低成本实现伪公开密钥密码系统。 陷阱门单向功能通过使用防篡改硬件实质上实现。 每个用户使用具有下述具有相同能力的硬件提供的设备进行通信。 这样的硬件保持ID和密钥之间的关联。 响应于来自用户的请求,硬件发出并存储ID,并且可以用与ID相关联的密钥来执行MAC(消息认证码)的解密和生成。 用户发布他的ID。 执行加密时,消息发送者使用已发布的ID对消息进行加密。 第三个人可以通过分析硬件中的机制来执行ID的解密。 然而,当尝试这样的行为时,硬件具有破坏自身的能力。
    • 7. 发明授权
    • Method for detecting target substance and target-substance detection kit
    • 检测目标物质和靶物检测试剂盒的方法
    • US07932100B2
    • 2011-04-26
    • US12162789
    • 2007-03-30
    • Miki OgawaMasato MinamiTakeshi ImamuraTakashi IkedaKazumichi Nakahama
    • Miki OgawaMasato MinamiTakeshi ImamuraTakashi IkedaKazumichi Nakahama
    • G01N33/553
    • G01N33/54373Y10S436/807
    • The present invention provides a method for detecting a target substance by detecting the presence or concentration of a target substance in a sample solution by bringing the sample solution into contact with a detecting element including a detecting part and a non-detecting part and detecting the presence or number of a magnetic label (magnetic marker) present in the vicinity of the surface of the detecting part and provides a target-substance detection kit. The surface potential ψ1 of the magnetic label in the sample solution, the surface potential ψ2 of the detecting parts and the surface potential ψ3 of the non-detecting part satisfy any one of the following relationships i) to iv): i) ψ1ψ3>0 and ψ2=0, ii) ψ1ψ2 0, and |ψ2|>|ψ3|, and iv) ψ1ψ2
    • 本发明提供了一种通过使样品溶液与包括检测部分和非检测部分的检测元件接触来检测样品溶液中目标物质的存在或浓度来检测目标物质的方法, 或存在于检测部件表面附近的磁性标签(磁性标记)的数量,并提供目标物质检测试剂盒。 样品溶液中的磁性标记的表面电位ψ1,检测部分的表面电位ψ2和非检测部分的表面电位ψ3满足以下关系式i)至iv)中的任何一个:i)ψ1ψ3> 0 ψ2= 0,ii)ψ1ψ2<0和ψ3= 0,iii)ψ1ψ2<0,ψ2ψ3> 0和ψ2|> |ψ3|,以及iv)ψ1ψ2<0和ψ2ψ3<0; 并且由磁性标签承载的目标物质由被检测部分承载的主要捕获体俘获,或者由被检测部分承载的主要捕获体捕获的目标物质被由磁性标签承载的二次捕获体俘获。