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Firmware protection and validation

机译:固件保护和验证

摘要

A system for firmware protection and validation includes: a memory device, including firmware; a chipset, a microprocessor; a secure logic device in electrical communication with the chipset and the memory device; and a power on reset circuit in communication with the secure logic device, wherein, when the secure logic device receives a reset signal from the power on reset circuit, the secure logic device applies a hold signal to the chipset, when the hold signal is applied to the chipset, the power on reset circuit de-asserts the reset signal, when the reset signal is de-asserted, the secure logic device validates the content of the firmware in the memory device, and further wherein, when the content of the firmware is validated by the secure logic device, the secure logic device de-asserts the hold signal applied to the chipset.
机译:一种用于固件保护和确认的系统,包括:存储设备,包括固件;芯片组,微处理器;与芯片组和存储设备电通信的安全逻辑设备;以及与安全逻辑设备通信的上电复位电路,其中,当安全逻辑设备从上电复位电路接收到复位信号时,当施加保持信号时,安全逻辑设备向芯片组施加保持信号。对于芯片组,加电复位电路使复位信号无效,当复位信号无效时,安全逻辑设备验证存储设备中固件的内容,并且其中,当固件的内容如果由安全逻辑设备验证,则安全逻辑设备将断言施加到芯片组的保持信号。

著录项

  • 公开/公告号GB2508251B

    专利类型

  • 公开/公告日2020-01-15

    原文格式PDF

  • 申请/专利权人 QUIXANT PLC;

    申请/专利号GB20130004867

  • 发明设计人 NICHOLAS CHARLES LEOPOLD JARMANY;

    申请日2013-03-18

  • 分类号G06F21/57;G07F17/32;

  • 国家 GB

  • 入库时间 2022-08-21 11:00:13

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