Використання електронного цифрового підпису для підвищення захисту QR-кодів

Abstract

This paper explores the implementation of an electronic digital signature to enhance data security in mobile applications handling QR codes. The principles of creating and verifying a digital signature using cryptographic algorithms SHA256 and RSA, along with the stages of key generation, encryption, and decoding, are examined. The process of integrating a unique identifier (installationID) and formatting data in a secure format (data:SIGN:…) is analyzed. A method for verifying data integrity and authenticity using the :SIGN: delimiter and returning corresponding results (Valid, Invalid, NotSigned) is proposed, ensuring robust protection against manipulations.