Dual-channel electronic signature system using graphic code and related method and device

Abstract

The invention provides a plurality of dual-channel electronic signature systems, wherein one dual-channel electronic signature system comprises a signature checking server, a signature requester device and a hand-held device. The signature requester device is used for calculating a characteristic value corresponding to the content of an object file, carrying out coding on the characteristic value to be signed and transmitting destination information to form a first graph and outputting the first graph. The hand-held device is used for retrieving and decoding an image of the first graph so as to obtain the characteristic value, carrying out electronic signing on the characteristic value to generate signature data, coding the signature data to generate a second graph, and transmitting the second graph to an objective network. If the signature data contained in the second graph pass through a checking program of the signature checking server, then the signature checking server can transmit a checked graph corresponding to the second graph to the signature requester device. A signer only needs to use the carry-on hand-held device to finish the electronic signing procedure, so the dual-channel electronic signature systems not only can ensure authenticity and security, but also can achieve convenience.

Description

technical field [0001] The present invention relates to electronic signature technology, especially a dual-channel electronic signature system using image codes and related methods and devices. Background technique [0002] In many occasions such as commercial transactions, official document approval, certificate application, identity verification, material distribution, etc., paper is often used for one of the parties (hereinafter referred to as the signer) to sign the name and as a carrier for signature preservation. Such a signature method not only wastes a lot of paper, but also requires additional physical storage space to store the signed documents, which is not an ideal method no matter from the perspective of environmental protection or economy. [0003] In addition, in many of the aforementioned occasions, the signer (such as a consumer, a person who goes to a bank or a government agency to contact a business, a material requester, etc.) usually needs to go to the p...

AI Technical Summary

Problems solved by technology

However, how to check the authenticity of the signature and ensure the security of data transmission, while taking into account the convenience of both the signature requester and the signer, has always been a bottleneck that is difficult to break through in the design of the electronic signature mechanism.

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