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    REPLACING STORED CODE WITH USER INPUTTING CODE ON THE RF ID CARD
    2.
    发明申请
    REPLACING STORED CODE WITH USER INPUTTING CODE ON THE RF ID CARD 审中-公开
    使用RF ID卡上的用户输入代码替换存储的代码

    公开(公告)号：WO0245441A9

    公开(公告)日：2003-02-06

    申请号：PCT/US0144548

    申请日：2001-11-28

    Applicant: RCD TECHNOLOGY INC ,  OBERLE ROBERT R ,  WALKER CHRIS

    Inventor： OBERLE ROBERT R ,  WALKER CHRIS

    IPC: G06F21/00 ,  G07C9/00 ,  G07F7/10 ,  H04L29/06 ,  H04Q5/22 ,  G06F11/30 ,  G06F15/16 ,  G06F15/173 ,  H04K1/00

    CPC classification number: H04L63/0442 ,  G06F21/35 ,  G06F21/43 ,  G06Q20/341 ,  G06Q20/40975 ,  G07C9/00309 ,  G07C2009/00412 ,  G07C2009/00793 ,  G07F7/1008 ,  H04L63/083 ,  H04L63/0853 ,  H04W12/02 ,  H04W12/06

    Abstract: The system (100) includes an RF ID card (102) and an RF ID reader (104). The ID is stored in storage (106) of the RF ID card (102). A message composition unit (108) receives the ID and composes the message including the ID, responding back to the RF ID reader (104). The RF ID reader (104) includes a timestamp production unit (107) which produces a timestamp which is provided to the message composition unit (110). The timestamp is received by the RF ID card (102). The message reception unit (109) provides the time stamp to the encryption unit (112) in the RF ID (102). The encryption unit (112) also receives a key value from storage (106). In a preferred embodiment, the encryption unit uses the key to encrypt the timestamp along with a password received form the user interface (114). The RF ID reader (104) receives the encrypted message in the message reception unit (118). Alternately, public/private encryption system is used in which the key at the RF ID card (102) is a private key while the key at the RF ID reader (104) is a public key or vice versa. In some embodiments, the ID look-up functions (120) are implemented at the external network. The decryption operation (122) receives the encrypted message and uses the key from the ID look-up to decrypt the message. Authorization unit (124) examines the password obtained by the ID look-up and the current time stamp in order to determine an authorization.

    Abstract translation: 系统（100）包括RF ID卡（102）和RF ID读取器（104）。 ID被存储在RF ID卡（102）的存储器（106）中。 消息合成单元（108）接收该ID并且构成包含ID的消息，响应于RF ID读取器（104）。 RF ID读取器（104）包括产生提供给消息合成单元（110）的时间戳的时间戳制作单元（107）。 时间戳由RF ID卡（102）接收。 消息接收单元（109）向RF ID（102）中的加密单元（112）提供时间戳。 加密单元（112）还从存储器（106）接收密钥值。 在优选实施例中，加密单元使用密钥来加密时间戳以及从用户界面（114）接收的密码。 RF ID读取器（104）在消息接收单元（118）中接收加密的消息。 或者，使用公共/私人加密系统，其中RF ID卡（102）上的密钥是私钥，而RF ID读取器（104）处的密钥是公钥，反之亦然。 在一些实施例中，ID查找功能（120）在外部网络处实现。 解密操作（122）接收加密的消息并且使用来自ID查找的密钥来解密消息。 授权单元（124）检查由ID查找获取的密码和当前时间戳，以便确定授权。

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