Electronic signature method with anti-tamper function

Abstract

An electronic signature method with an anti-tamper function method is implemented by a network server communicable with an electronic device. The method mainly includes: receiving the track information via a network server when a signer inputs the signature track through an electronic device, and capturing a dynamic image message. The dynamic image message includes a handwritten signature track ofthe signer and a dynamic image of the signer. Then, the original data file of the track message, the dynamic image message and the signature is taken as a signature data file, and then a set of encrypted verification values are generated according to the position of the signature track in the signature data file and the position of the dynamic image, and are combined in the signature data file. Finally, a signature data file including a signature track and a dynamic picture is displayed through a touch screen of the electronic device. In this way, in addition to being able to confirm that theaforementioned signature is indeed from the intended signer, the encrypted verification value can also be used to prevent the file from being tampered, thereby further improving the reliability and authenticity.

Description

technical field [0001] The invention relates to an electronic signature method, in particular to an electronic signature method with anti-counterfeit function for authenticating identity. Background technique [0002] Taking Taiwan Patent No. I493380 "Electronic Signature Method" as an example, when the signer uses an electronic device to sign, the track of the signer's handwritten signature and the dynamic image of the signer are captured simultaneously. In this way, combining the dynamic image and the signature track during handwriting, it is confirmed that the aforementioned signature track is indeed from the expected signer, and then achieves the purpose of authenticating the identity and improving the reliability in a simple way. [0003] Although the above-mentioned dynamic image can make up for the shortcoming that the signature track is easy to be copied, and confirm that the signature track is true, the content of the file may still be tampered with, especially when...

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