签名固件校验方法、设备及计算机可读介质

签名固件校验方法、设备及计算机可读介质

摘要：本发明公开了签名固件校验方法、设备和计算机可读介质，对待升级固件进行签名，获取设备树节点中的公钥信息并读取待升级固件中的魔幻数字段，根据魔幻数字段确定对应的待升级固件中的固件类型，并根据公钥信息对待升级固件进行与固件类型对应的签名校验。因此根据待升级固件头部的魔幻数字段确定固件类型，并根据公钥对该类型的固件进行对应的签名校验，能够对待升级固件中的不同固件类型进行针对性的校验，提高签名校验的准确性。

Signature firmware verification method, device and computer readable medium

Abstract:The invention discloses a signature firmware verification method, equipment and a computer readable medium, wherein a firmware to be upgraded is signed, public key information in a tree node of the equipment is obtained, a magic digital field in the firmware to be upgraded is read, the type of the corresponding firmware in the firmware to be upgraded is determined according to the magic digital field, and signature verification corresponding to the type of the firmware is carried out on the firmware to be upgraded according to the public key information. Therefore, the firmware type is determined according to the magic digital field at the head of the firmware to be upgraded, and the corresponding signature verification is carried out on the firmware of the type according to the public key, so that the different firmware types in the firmware to be upgraded can be subjected to targeted verification, and the accuracy of the signature verification is improved.

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Recommended citation:

纪大峣. 签名固件校验方法、设备及计算机可读介质[P]. 中国：CN114595460A,2022-06-07.

D. Ji,”Signature firmware verification method, device and computer readable medium,” China Patent CN114595460A, June 07,2022.