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    • 1. 发明授权
    • Data medium authentication method
    • 数据媒体认证方式
    • US07636438B1
    • 2009-12-22
    • US09486723
    • 1998-09-07
    • Michael LamlaHermann DrexlerWolfgang RanklFranz WeikmannWolfgang Effing
    • Michael LamlaHermann DrexlerWolfgang RanklFranz WeikmannWolfgang Effing
    • H04L9/32G06F7/04
    • G07F7/1008G06Q20/341G06Q20/40975
    • The invention relates to a method for testing the authenticity of a data carrier (1) and/or an external device (2) which enters into data exchange with the data carrier (1). According to the invention, the data carrier (1) and the external device (2) are each equipped with a special additional apparatus (4, 6) for generating and/or testing authenticity data. Data transmission between the data carrier (1) and the external device (2) as required for authenticity testing is performed at least partly via a special transmission channel (B). The transmission channel (B) for transmitting authenticity data is separated physically or logically from a transmission channel (A) for transmitting standard data so that there is no mutual interference of data transmission via the two transmission channels (A, B). In authenticity testing, the additional apparatuses for generating and/or testing authenticity data (4, 6) of the data carrier (1) and external device (2) and optionally also the transmission channel (B) for authenticity data must meet special demands which cannot be met by conventional designs. The transmission channel (B) for transmitting authenticity data is activable during the total time period between activation and deactivation of the data carrier (1) so that authenticity testing can be performed anytime.
    • 本发明涉及一种用于测试与数据载体(1)进行数据交换的数据载体(1)和/或外部设备(2)的真实性的方法。 根据本发明,数据载体(1)和外部装置(2)各自配有用于产生和/或测试真实性数据的特殊附加装置(4,6)。 至少部分地通过专用传输通道(B)执行真实性测试所需的数据载体(1)和外部设备(2)之间的数据传输。 用于发送真实性数据的传输信道(B)从用于发送标准数据的传输信道(A)物理地或逻辑地分离,使得经由两个传输信道(A,B)不存在数据传输的相互干扰。 在真实性测试中,用于生成和/或测试数据载体(1)和外部设备(2)的可靠性数据(4,6)和可选地还包括用于真实性数据的传输信道(B)的附加设备必须满足特殊要求, 不能满足常规设计。 用于发送真实性数据的传输信道(B)可以在数据载体(1)的激活和停用之间的总时间段内被激活,从而可以随时执行真实性测试。