The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2018
Filed:
Apr. 26, 2017
Kalman Csaba Toth, Portland, OR (US);
Kalman Csaba Toth, Portland, OR (US);
Other;
Abstract
The described method is analogous to handling credentials in the physical world where agents and notary publics affix their attestations using their notary seals. The described method enables a person having a personal identity device and an electronic credential (e-credential) to create a digital seal to affix the owner's identity and attestation to an electronic artifact such as a transaction, document, or e-credential. The e-credential owner cannot repudiate having affixed the attestation to the electronic artifact. This enables other parties, including the e-credential owner, to inspect the digital seal affixed to the electronic artifact to identify the owner and the electronic artifact, verify the digital seal, and thereby obtain objective evidence that the attestation is truthful. The private embossing key of the owner's e-credential is used to cryptographically bind the owner's identity and attestation to the electronic artifact by means of a digital seal, while the public inspection key of the owner's e-credential is used to cryptographically verify the digital seal and attestation.