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VERIFICATION OF DIGITAL CREDENTIALS AND DIGITAL SIGNATURES

Application US20260100851A1 Kind: A1 Apr 09, 2026

Inventors

Kaibin HUANG

Abstract

Disclosed in the present invention include methods and systems for issuing a certificate-type credential and electronically signing a document. Both applications require to verify if a digital credential of a prover or a signer is authenticated. Authentication of the digital credential requires a two-fold verification that the digital credential is verified to be valid and one of at least one issuer linked to the digital credential according to a parent-child relationship is verified to be trusted. To verify that the digital credential is valid, validity of a proof, expiration date, and revocation information associated with the digital credential should all be verified to be valid. The two-fold verification secures more for digital credential verification. Non-certificate type digital credentials and certificate-type digital credential can be organized in a digital identity hierarchy allowing ownership of multiple digital credentials to one entity implemented with distributed ledger technology effectively avoiding single point of failure.

CPC Classifications

H04L 9/3268 H04L 9/0825 H04L 9/3218 H04L 9/3247 H04L 9/3271

Filing Date

2022-09-21

Application No.

19113905