Method and system for parsing pb format circulation data

Abstract

A method for parsing circulation data in a PB format, which includes: setting, by a terminal, a start identification and an end identification for to-be-signed data extracted from a cache; calling a preset function to split the to-be-signed data to obtain a splitting result, and updating the start identification and the end identification respectively according to a length of parameter data in the splitting result to obtain an updated start identification and an updated end identification; generating, by the terminal, a signing request, and sending the signing request to a hardware device to which the terminal is connected, parsing, by the hardware device, the signing request when a signature result obtaining request is received, determining to-be-displayed data according to parameter data in a parsing result, and displaying the to-be-displayed data; and generating, by the hardware device, a private key according to a private key derived address parsed from the signing request, and signing the to-be-signed data parsed from the signing request with the private key. According to the present invention, the hardware device can rapidly parse the circulation data in the PB format, thereby achieving the effect that 'what you see is what you sign'.