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    Theft prevention system
    1.
    发明授权
    Theft prevention system 有权
    防盗系统

    公开(公告)号：US08048174B2

    公开(公告)日：2011-11-01

    申请号：US10581442

    申请日：2004-12-06

    申请人： Masato Yamamichi ,  Masami Yamamichi, legal representative ,  Satomi Yamamichi ,  Keiko Yamamichi ,  Toshihisa Nakano ,  Kaoru Yokota ,  Motoji Ohmori ,  Makoto Tatebayashi ,  Shunji Harada

    发明人： Masato Yamamichi ,  Satomi Yamamichi ,  Keiko Yamamichi ,  Toshihisa Nakano ,  Kaoru Yokota ,  Motoji Ohmori ,  Makoto Tatebayashi ,  Shunji Harada

    IPC分类号： G06F21/00

    CPC分类号： B60R25/2018 ,  B60R25/23 ,  B60R25/24 ,  B60R2325/205 ,  G07C9/00817 ,  G07C2009/00825

    摘要： A theft prevention system capable of preventing theft of a target object by disabling the authorized key of the target object in the case where the authorized key has been stolen. When the authorized key is lost, a mobile telephone instructs a vehicle control device to set a warning mode. On receipt of this warning mode instruction, the vehicle control device sets warning mode, generates an electronic key, and transmits the generated electronic key to the mobile telephone, which receives and stores the electronic key. Once the warning mode is set in the vehicle, locking and unlocking are only possible using the electronic key. If the authorized key is found, the mobile telephone instructs the vehicle control device to set the normal mode. Upon receipt of this normal mode instruction, the vehicle control device sets the normal mode in the vehicle.

    摘要翻译： 一种防盗系统，能够通过在授权密钥被盗的情况下禁止目标对象的授权密钥来防止目标对象被盗。 当授权密钥丢失时，移动电话指示车辆控制装置设置警告模式。 在接收到该警告模式指令时，车辆控制装置设置警告模式，生成电子钥匙，并将生成的电子钥匙发送到接收并存储电子钥匙的移动电话。 一旦在车辆中设置了警告模式，只能使用电子钥匙进行锁定和解锁。 如果找到授权密钥，则移动电话指示车辆控制装置设置正常模式。 在接收到该正常模式指令时，车辆控制装置在车辆中设定正常模式。

    Theft prevention system
    2.
    发明申请
    Theft prevention system 有权
    防盗系统

    公开(公告)号：US20080122595A1

    公开(公告)日：2008-05-29

    申请号：US10581442

    申请日：2004-12-06

    申请人： Masato Yamamichi ,  Masami Yamamichi ,  Satomi Yamamichi ,  Keiko Yamamichi ,  Toshihisa Nakano ,  Kaoru Yokota ,  Motoji Ohmori ,  Makoto Tatebayashi ,  Shunji Harada

    发明人： Masato Yamamichi ,  Masami Yamamichi ,  Satomi Yamamichi ,  Keiko Yamamichi ,  Toshihisa Nakano ,  Kaoru Yokota ,  Motoji Ohmori ,  Makoto Tatebayashi ,  Shunji Harada

    IPC分类号： E05B49/00

    CPC分类号： B60R25/2018 ,  B60R25/23 ,  B60R25/24 ,  B60R2325/205 ,  G07C9/00817 ,  G07C2009/00825

    摘要： A theft prevention system capable of preventing theft of a target object by disabling the authorized key of the target object in the case where the authorized key has been stolen. When the authorized key is lost, a mobile telephone 100 instructs a vehicle control device 300a to set a warning mode. On receipt of this warning mode instruction, the vehicle control device 300a sets warning mode, generates an electronic key, and transmits the generated electronic key to the mobile telephone 100, which receives and stores the electronic key. Once the warning mode is set in the vehicle, locking and unlocking are only possible using the electronic key. If the authorized key is found, the mobile telephone 100 instructs the vehicle control device 300a to set the normal mode. Upon receipt of this normal mode instruction, the vehicle control device 300a sets the normal mode in the vehicle. Once the normal mode is set in the vehicle, locking and unlocking are only possible using the authorized key.

    摘要翻译： 一种防盗系统，能够通过在授权密钥被盗的情况下禁止目标对象的授权密钥来防止目标对象被盗。 当授权密钥丢失时，移动电话机100指示车辆控制装置300a设置警告模式。 在接收到该警告模式指令时，车辆控制装置300a设置警告模式，生成电子钥匙，并将生成的电子钥匙发送到接收并存储电子钥匙的移动电话机100。 一旦在车辆中设置了警告模式，只能使用电子钥匙进行锁定和解锁。 如果找到授权密钥，则移动电话机100指示车辆控制装置300a设定正常模式。 在接收到该正常模式指令时，车辆控制装置300a设定车辆中的正常模式。 一旦在车辆中设置了正常模式，锁定和解锁只能使用授权键进行。

    Parameter generation apparatus, encryption system, decryption system, encryption apparatus, decryption apparatus, encryption method, decryption method, and program thereof
    3.
    发明申请
    Parameter generation apparatus, encryption system, decryption system, encryption apparatus, decryption apparatus, encryption method, decryption method, and program thereof 有权
    参数生成装置，加密系统，解密系统，加密装置，解密装置，加密方法，解密方法及程序

    公开(公告)号：US20060239459A1

    公开(公告)日：2006-10-26

    申请号：US10552586

    申请日：2004-04-14

    申请人： Masato Yamamichi ,  Masami Yamamichi ,  Satomi Yamamichi ,  Keiko Yamamichi ,  Yuuchi Futa ,  Motoji Ohmori ,  Makoto Tatebayashi

    发明人： Masato Yamamichi ,  Masami Yamamichi ,  Satomi Yamamichi ,  Keiko Yamamichi ,  Yuuchi Futa ,  Motoji Ohmori ,  Makoto Tatebayashi

    IPC分类号： H04K1/00

    CPC分类号： H04L9/3093

    摘要： A parameter generation apparatus for generating parameters causing no decryption error for an NTRU cryptosystem so that an encrypted communication can be carried out between an encryption apparatus and a decryption apparatus in a secure and reliable manner, is comprised of: a provisional parameter generation unit operable to generate a set of provisional parameters that do not cause any decryption errors, based on error condition information that is provided in advance, said error condition information indicating a condition for causing no decryption error; and an output parameter generation unit operable to generate an output parameter that does not cause any decryption errors, using said set of provisional parameters, based on a lattice constant that is calculated from said set of provisional parameters.

    摘要翻译： 一种参数生成装置，其特征在于，包括：生成对于NTRU密码系统不产生解密错误的参数，使得能够以安全可靠的方式在加密装置和解密装置之间执行加密通信的参数生成装置，其包括：临时参数生成单元， 基于预先提供的错误条件信息生成不引起任何解密错误的一组临时参数，所述错误条件信息指示不导致解密错误的条件; 以及输出参数生成单元，用于基于从所述一组临时参数计算的晶格常数，使用所述一组临时参数来生成不引起任何解密错误的输出参数。

    Encrypted communication system and communication device
    4.
    发明申请
    Encrypted communication system and communication device 有权
    加密通信系统和通信设备

    公开(公告)号：US20070150735A1

    公开(公告)日：2007-06-28

    申请号：US10573684

    申请日：2004-10-18

    申请人： Yuichi Futa ,  Masato Yamamichi ,  Masami Yamamichi ,  Satomi Yamamichi ,  Keiko Yamamichi ,  Motoji Ohmori ,  Makoto Tatebayashi

    发明人： Yuichi Futa ,  Masato Yamamichi ,  Masami Yamamichi ,  Satomi Yamamichi ,  Keiko Yamamichi ,  Motoji Ohmori ,  Makoto Tatebayashi

    IPC分类号： H04L9/00

    CPC分类号： H04L9/0844 ,  H04L9/30 ,  H04L2209/605 ,  H04L2209/80

    摘要： In an encrypted communication system that includes a first and a second device, the first device encrypts a key using a public key of the second device to generate 1st encrypted data, which is then transmitted to the second device, receives 2nd encrypted data from the second device, which is then decrypted using a secret key of the first device to obtain a 2nd key, and generates, based on the 1st and 2nd keys, a 1st encryption key for use in communication with the second device. The second device encrypts a 3rd key using a public key of the first device to generate the 2nd encrypted data, which is then transmitted to the first device, receives the 1st encrypted data, which is then decrypted using a secret key of the second device to obtain a 4th key, and generates, based on the 3rd and 4th keys, a 2nd encryption key for use in communication with the first device. The first and second devices perform encrypted communication using the 1st and 2nd encryption keys.

    摘要翻译： 在包括第一和第二设备的加密通信系统中，第一设备使用第二设备的公开密钥对密钥进行加密以产生第一加密数据，然后将其传送到第二设备，从第二设备接收第二加密数据 设备，然后使用第一设备的秘密密钥解密以获得第二密钥，并且基于第一和第二密钥生成用于与第二设备通信的第一加密密钥。 第二设备使用第一设备的公开密钥对第三密钥进行加密以生成第二加密数据，然后将其传送到第一设备，接收第一加密数据，然后使用第二设备的秘密密钥将其解密 获得第四密钥，并且基于第三和第四密钥生成用于与第一设备通信的第二加密密钥。 第一和第二设备使用第一和第二加密密钥执行加密通信。

    Encryption communication system
    5.
    发明申请
    Encryption communication system 有权
    加密通信系统

    公开(公告)号：US20060171530A1

    公开(公告)日：2006-08-03

    申请号：US10559725

    申请日：2004-06-14

    申请人： Yuichi Futa ,  Masato Yamamichi ,  Masami Yamamichi ,  Satomi Yamamichi ,  Keiko Yamamichi ,  Motoji Ohmori ,  Makoto Tatebayashi

    发明人： Yuichi Futa ,  Masato Yamamichi ,  Masami Yamamichi ,  Satomi Yamamichi ,  Keiko Yamamichi ,  Motoji Ohmori ,  Makoto Tatebayashi

    IPC分类号： H04L9/28

    CPC分类号： H04L9/3236 ,  H04L9/3093 ,  H04L2209/60

    摘要： An encroption transmission apparatus and an encryption reception apparatus avoid attack that takes advantage of re-transmission request. A server apparatus encrypts a content key five times, thereby generating five encrypted content keys, calculates a hash value of the content key, and transmits the five encrypted content keys and the hash value. An image playback apparatus receives the five encrypted content keys and the has value, decrypts the five encrypted content keys thereby generating five content keys, calculates hash values each corresponding to the generated content keys, and compares the calculated hash values with the received hash value respectively. If at least one of the five calculated hash values matches the received hash value, the corresponding content key is considered correct. Conversely, if none of the five calculated hash values matches the received hash value, it is considered a decryption error.

    摘要翻译： 侵扰传输装置和加密接收装置避免利用重传请求的攻击。 服务器装置对内容密钥进行五次加密，从而生成五个加密的内容密钥，计算内容密钥的哈希值，并发送五个加密内容密钥和哈希值。 图像重放装置接收五个加密的内容密钥并具有值，对五个加密的内容密钥进行解密从而生成五个内容密钥，计算与生成的内容密钥相对应的哈希值，分别将计算的哈希值与接收到的散列值进行比较 。 如果五个计算的散列值中的至少一个与接收的散列值匹配，则相应的内容密钥被认为是正确的。 相反，如果五个计算的散列值中没有一个与接收的散列值匹配，则认为它是解密错误。

    Encryption System, Encryption Device, Decryption Device, Program, And Integrated Circuit
    10.
    发明申请
    Encryption System, Encryption Device, Decryption Device, Program, And Integrated Circuit 有权
    加密系统，加密设备，解密设备，程序和集成电路

    公开(公告)号：US20070274518A1

    公开(公告)日：2007-11-29

    申请号：US10592387

    申请日：2005-04-28

    申请人： Yuichi Futa ,  Masato Yamamichi ,  Motoji Ohmori ,  Masami Yamamichi ,  Satomi Yamamichi ,  Keiko Yamamichi

    发明人： Yuichi Futa ,  Masato Yamamichi ,  Motoji Ohmori ,  Masami Yamamichi ,  Satomi Yamamichi ,  Keiko Yamamichi

    IPC分类号： H04L9/30

    CPC分类号： H04L9/3093 ,  H04L2209/08

    摘要： An encrypted communication system, capable of performing processing with the speed higher than the conventionally achieved speed, has an encryption device and a decryption device which share parameters that satisfy p=3 and q=2ˆk (k: an integer of 2 or greater) (S161), where the decryption device generates a public key and a private key using the parameters (S162-S165), the encryption device encrypts a plain text using the public key (S166-S170), and then, the decryption device decrypts the encrypted text using its own private key (S171-S173).

    摘要翻译： 能够以比常规实现的速度更高的速度进行处理的加密通信系统具有共享满足p = 3且q = 2k（k：2以上的整数）的参数的加密装置和解密装置（ S 161），其中解密装置使用参数生成公钥和私钥（S 162 -S 165），加密装置使用公钥加密明文（S 166 -S 170），然后， 解密设备使用其自己的私钥对加密的文本进行解密（S 171 -S 173）。