Apparatus and method to provide security for a keypad processor of a
transaction terminal
    1.
    发明授权
    Apparatus and method to provide security for a keypad processor of a transaction terminal 失效
    为交易终端的键盘处理器提供安全性的装置和方法

    公开(公告)号:US5832206A

    公开(公告)日:1998-11-03

    申请号:US622521

    申请日:1996-03-25

    IPC分类号: G06F21/00 G06F11/00 G07F7/10

    摘要: Apparatus to provide security for a keypad processor of a transaction terminal includes a secured processor coupled to a keypad and processor of the transaction terminal. The apparatus may operate in a secured or an unsecured mode. In a secured mode, the apparatus prevents the fraudulent acquisition of information, such as personal identification numbers (PIN), entered through the keypad. By encrypting data entered through the keypad, the apparatus prevents the fraudulent acquisition of information transmitted to a processor such as a central computer of a bank. The secured processor provides actual and false sampling of the keypad and simulates keypad data entries to prevent an electronic eavesdropper from determining the actual keypad entries.

    摘要翻译: 为交易终端的键盘处理器提供安全性的装置包括耦合到交易终端的键盘和处理器的安全处理器。 设备可以以安全或非安全模式操作。 在安全模式下,该装置防止欺骗性地获取诸如通过键盘输入的个人识别号码(PIN)等信息。 通过加密通过键盘输入的数据,该装置防止欺骗性地获取发送到诸如银行的中央计算机的处理器的信息。 安全处理器提供键盘的实际和错误采样,并模拟键盘数据输入,以防止电子窃听者确定实际的键盘输入。