Apparatus and method for generating secret key
    12.
    发明授权
    Apparatus and method for generating secret key 有权
    用于产生密钥的装置和方法

    公开(公告)号:US08320570B2

    公开(公告)日:2012-11-27

    申请号:US12631323

    申请日:2009-12-04

    IPC分类号: H04K1/00 H04L9/08 H04Q5/22

    CPC分类号: G06K7/0008 G06K19/07309

    摘要: An apparatus for generating a secret key generates the secret key by using information of a mobile RFID terminal, transmits the generated secret key to an RFID tag attached on an article, and decrypts a unique item identifier of the article encrypted by using the generated secret key after receiving the unique item identifier of the article encrypted by using the secret key from the RFID tag. By this configuration, it is possible to protect user's personal privacy of the mobile RFID terminal in a state where user's intervention is minimized.

    摘要翻译: 用于生成秘密密钥的装置通过使用移动RFID终端的信息生成秘密密钥,将生成的秘密密钥发送到附着在物品上的RFID标签,并且通过使用所生成的秘密密钥解密加密的物品的唯一物品标识符 在接收到通过使用来自RFID标签的秘密密钥加密的物品的唯一物品标识符之后。 通过这种配置,可以在用户干预最小化的状态下保护移动RFID终端的用户个人隐私。

    Apparatus and method for unifying multiple radio frequency identifications
    13.
    发明授权
    Apparatus and method for unifying multiple radio frequency identifications 失效
    统一多射频识别的装置和方法

    公开(公告)号:US07649440B2

    公开(公告)日:2010-01-19

    申请号:US11584155

    申请日:2006-10-20

    IPC分类号: H04Q5/22

    摘要: An apparatus and method for unifying multiple radio frequency identifications (RFIDs) are provided. The apparatus includes: a data arithmetic operator collecting RFIDs, storing the collected RFIDs, and repeatedly performing the collection and storage when a time out event occurs; a hash arithmetic operator concatenating the RFIDs, hashing the concatenated RFIDs, and outputting a hashed single value; a random number generator generating a random number used as an encryption factor to public-key-encrypt the single value; an RFID tag processor controlling locking/unlocking of the RFID tags; a public key arithmetic operator public-key-encrypting the single value using a predetermined public key and the random number as encryption factors and outputting a cipher text; and a radio frequency communicator converting the cipher text into a radio signal and sending the radio signal to a radio section. Information transmitted to a radio section is a cipher text obtained by public-key-encrypting the single value. Therefore, the number of the RFID tags belonging to a user is not exposed to an eavesdropper, thereby protecting user's privacy.

    摘要翻译: 提供了一种用于统一多射频识别(RFID)的装置和方法。 该装置包括:收集RFID的数据运算运算器,存储收集的RFID,并且在发生超时事件时重复执行收集和存储; 连接RFID的散列算术运算器,对级联的RFID进行散列,并输出散列值; 产生用作公开密钥加密单个值的加密因子的随机数的随机数生成器; 控制RFID标签的锁定/解锁的RFID标签处理器; 公钥算术运算公共密钥 - 使用预定公钥加密单个值,并且随机数作为加密因子并输出密文; 以及将密文转换为无线电信号并将无线电信号发送到无线电部分的射频通信器。 发送到无线电部分的信息是通过公钥加密单个值获得的密文。 因此,属于用户的RFID标签的数量不会暴露给窃听者,从而保护用户的隐私。