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    • 5. 发明授权
    • Verifying firmware
    • 验证固件
    • US08607216B2
    • 2013-12-10
    • US13055245
    • 2008-08-01
    • Wael M. IbrahimGraeme John Proudler
    • Wael M. IbrahimGraeme John Proudler
    • G06F9/45
    • G06F21/572
    • Systems, methods, and other embodiments associated with updating firmware for a chip are described. One example method may include performing an external verification of updated firmware received and stored external to the chip to determine if the updated firmware is authentic. Upon determining that the updated firmware is authentic, the updated firmware is loaded into the chip. An internal verification of the updated firmware within the chip is performed to determine that the updated firmware is authentic. The internal verification is assured to succeed based on the external verification. Because the internal verification will succeed, the chip avoids reverting to a default firmware.
    • 描述了与更新芯片的固件相关联的系统,方法和其他实施例。 一个示例性方法可以包括对芯片外部接收和存储的更新的固件进行外部验证,以确定更新的固件是否可信。 在确定更新的固件是可信的时,更新的固件被加载到芯片中。 执行芯片内更新的固件的内部验证,以确定更新的固件是真实的。 根据外部验证确保内部验证成功。 由于内部验证将成功,芯片可以避免恢复到默认固件。