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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
    3.
    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。

    Encryption communication system
    4.
    发明授权
    Encryption communication system 有权
    加密通信系统

    公开(公告)号：US07603554B2

    公开(公告)日：2009-10-13

    申请号：US10559725

    申请日：2004-06-14

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

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

    IPC分类号： H04L9/32

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

    摘要： An encryption transmission apparatus and an encryption reception apparatus avoid attack that takes advantage of a 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 hash 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： 加密发送装置和加密接收装置避免利用重发请求的攻击。 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和哈希值，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，并将计算的哈希值与接收到的散列值进行比较 ， 分别。 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。

    Encrypted communication system and communication device
    6.
    发明授权
    Encrypted communication system and communication device 有权
    加密通信系统和通信设备

    公开(公告)号：US07813512B2

    公开(公告)日：2010-10-12

    申请号：US10573684

    申请日：2004-10-18

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

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

    IPC分类号： H04L9/08

    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 1st 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第一密钥进行加密，以生成第一加密数据，然后将其传送到第二设备，从第二设备接收第二加密数据 第二设备，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。

    Content recording/reproducing system, distribution device, reproducing device, and recording device
    7.
    发明授权
    Content recording/reproducing system, distribution device, reproducing device, and recording device 有权
    内容记录/再现系统，分发设备，再现设备和记录设备

    公开(公告)号：US07702109B2

    公开(公告)日：2010-04-20

    申请号：US10548265

    申请日：2004-03-11

    申请人： Yuichi Futa ,  Masato Yamamichi ,  Masami Yamamichi, legal representative ,  Satomi Yamamichi, legal representative ,  Keiko Yamamichi, legal representative ,  Motoji Ohmori ,  Masaya Yamamoto ,  Makoto Tatebayashi

    发明人： Yuichi Futa ,  Masato Yamamichi ,  Motoji Ohmori ,  Masaya Yamamoto ,  Makoto Tatebayashi

    IPC分类号： H04L9/00

    CPC分类号： H04N21/4325 ,  G11B20/00086 ,  G11B20/00173 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00362 ,  G11B20/00492 ,  H04N21/26613 ,  H04N21/835

    摘要： A content recording/reproducing system, which records and reproduces a sub-content relating to a main content, includes a distribution device, first and second recording media, a recording device and a reproducing device. The first recording medium that is non-rewritable prestores key data based on which a public key is derivable, and the main content. The distribution device outputs verification information that includes the sub-content and is generated by applying a digital signature to relative information relating to the sub-content based on a secret key corresponding to the public key. The recording device acquires and records the verification information on the second recording medium that is rewritable. The reproducing device acquires the key data from the first recording medium and the verification information from the second recording medium, derives the public key from the key data, verifies the verification information using the public key, and reproduces the sub-content if the verification succeeds.

    摘要翻译： 记录和再现与主要内容相关的子内容的内容记录/再现系统包括分发装置，第一和第二记录介质，记录装置和再现装置。 不可重写的第一种记录介质预先存储基于该公钥的可导出的密钥数据，以及主要内容。 分发装置输出包含子内容的验证信息，并且通过基于与公开密钥相对应的秘密密钥将数字签名应用于与子内容相关的相关信息来生成。 记录装置在可重写的第二记录介质上获取并记录验证信息。 再现装置从第一记录介质获取密钥数据和来自第二记录介质的验证信息，从密钥数据中导出公共密钥，使用公钥验证验证信息，并且如果验证成功则再现子内容 。