	US 12,081,676 B2
	Method for signing and submitting electronic documents through visual indicia
Sammotic Switchyarn, Bangkok (TH); Nuttawut Kongsuwan, Bangkok (TH); Sarawuth Rungcharoenkit, Samut Prakan (TH); and Pakorn Leesakul, Bangkok (TH)
Assigned to Finema Company Limited, Bangkok (TH)
Appl. No. 17/788,748
Filed by Finema Company Limited, Bangkok (TH)
PCT Filed Jul. 20, 2021, PCT No. PCT/TH2021/000041 § 371(c)(1), (2) Date Jun. 24, 2022, PCT Pub. No. WO2023/003523, PCT Pub. Date Jan. 26, 2023.
Prior Publication US 2024/0195634 A1, Jun. 13, 2024
Int. Cl. H04L 9/32 (2006.01); G06F 21/31 (2013.01); H04L 9/30 (2006.01)

CPC H04L 9/3247 (2013.01) [G06F 21/31 (2013.01); H04L 9/30 (2013.01)]

15 Claims

1. A computer-implemented method of signing and submitting an electronic document, the method comprising:

under the control of a server system configured with executable instructions,

storing the electronic document; and

dispatching a copy of the electronic document;

under the control of an auxiliary client system configured with executable instructions,

obtaining the copy of the electronic document from the server system;

creating an indicium comprising information indicative of an identifier of the electronic document and an identifier of a recipient system; and

displaying a graphical representation of the electronic document together with said indicium;

under the control of a client system configured with executable instructions,

displaying an indication of a single action in relation to the indicium that is to be performed to sign the electronic document with a digital signature and subsequently submit data representative of the electronic document having been digitally signed;

extracting information from the indicium;

obtaining the copy of the electronic document from the server system;

storing an asymmetric key pair, consisting of a private key and a public key;

requiring authentication from the entity operating the client system before said private key is to be used; and

storing a proof of said entity's ownership of said public key; and

in response to said single action being performed,

generating a digital signature associated with the copy of the electronic document and said private key;

establishing a secure internet session with a recipient system;

submitting said digital signature to the recipient system; and

submitting the copy of the electronic document to the recipient system; and

under the control of the recipient system configured with executable instructions,

receiving the digital signature from the client system;

storing said digital signature;

receiving the copy of the electronic document from the client system; and

storing said copy.