A Novel Model for Securing Seals using Blockchain and Digital Signature based on QR Codes

Every person in the world needs documents that prove their identity, graduation from the university, residence, marriage, and other essential records that must be safely handled. The credibility of the documents depends on the stamp seal imprints found in them belonging to the government entity, the source of the credibility. But recently, with the rapid development of technology, the number of forged documents and forged stamp seals imprints has increased tremendously, which has led to significant security and social problems. Most of the world's governments depend on securing documents by securing stamp seal imprints through using Ultra Violets inks and issuing them through a centralized environment, which contains many challenges and problems. Central repositories may have security issues such as a single point of failure challenge, data unavailability due to central system failures, or a Denial of Service (DoS) attack. Therefore, this paper will present a proposal that solves the challenges in electronic systems (complete digitalization) and paper systems (partial digitalization). This manuscript proposes a smart securing model to secure stamp seal imprints by encrypting data with stamp seal image of the seal and storing it as a block through the decentralized Blockchain platform. After that, a quick response code (QR) is created to access that block quickly and securely. Also, the stamp seal's hash image and the details of the stamp seal's data source in the blockchain provide a shared, immutable, and transparent history of the stamp seals without relying on any third party. After several experiments, the results proved an accuracy and security rate of stamp seals and documents that reached 98%, with a high retrieval speed. Thus, a safe, fast, and non-changeable environment was provided to retrieve necessary information and ensure its authenticity.