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    • 8. 发明授权
    • Apparatus and method for a programmable security processor
    • 用于可编程安全处理器的装置和方法
    • US07073069B1
    • 2006-07-04
    • US09565655
    • 2000-05-05
    • Stephen L. WassonDavid K. VarnJohn D. Ralston
    • Stephen L. WassonDavid K. VarnJohn D. Ralston
    • H04L9/32H04L9/00H04N7/167
    • G06F21/57G06F21/10
    • A digital logic circuit comprises a programmable logic device and a programmable security circuit. The programmable security circuit stores a set of authorized configuration security keys. The programmable security circuit compares the authorized configuration security keys with an incoming configuration request, and selectively enables a new configuration for the programmable logic device in response to the configuration request. In another exemplary embodiment, a programmable security circuit also stores a set of authorized operation security keys. The programmable security circuit compares the authorized operation security keys with an incoming operation request from the programmable logic device, and selectively enables an operation within the programmable logic device in response to the operation request.
    • 数字逻辑电路包括可编程逻辑器件和可编程安全电路。 可编程安全电路存储一组授权的配置安全密钥。 可编程安全电路将授权的配置安全密钥与传入配置请求进行比较,并且响应于配置请求选择性地启用可编程逻辑设备的新配置。 在另一示例性实施例中,可编程安全电路还存储一组经授权的操作安全密钥。 可编程安全电路将授权的操作安全密钥与可编程逻辑器件的输入操作请求进行比较,并且响应于操作请求选择性地启用可编程逻辑器件内的操作。