• Anjali Devi
• Sudhanshu Vashistha

The proposed system offers a solution that addresses the issue of document sharing security by combining blockchain technology, the Blake2B algorithm, and multi-level security checks. The system begins with a user authentication phase, which ensures the legitimacy of users. To authenticate users, the system employs Aadhar verification, fingerprint authentication, and a rotation pattern generated from images. These multi-level security checks enhance user identification and minimize the risk of unauthorized access. Once user authentication is successful, the document sharing phase commences. In this phase, the system utilizes the Blake2B algorithm to generate a File Sharing Key. This key is derived from the Blake2B hash of the user's Aadhar, Fingerprint, the shared document, and the rotation pattern. By utilizing the File Sharing Key, the system guarantees that only authorized individuals can access the shared document. The effectiveness of this approach has been validated through research papers and evaluated using pattern strength checking tools, which measure years and bits of entropy. By incorporating multi-level security checks, the proposed system significantly enhances document sharing security in the banking sector. The Aadhar verification, fingerprint authentication, and rotation pattern provide additional layers of security, making it considerably more challenging for malicious actors to manipulate or forge documents. The evaluation of pattern strength ensures the system's ability to provide robust security measures.

Blake2B, File Sharing, Bio-Metric.

"Banking Document Sharing using Blockchain based on Document Identity", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 7, page no.g515-g519, July-2023, Available :http://www.jetir.org/papers/JETIR2307672.pdf

"Banking Document Sharing using Blockchain based on Document Identity", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 7, page no. ppg515-g519, July-2023, Available at : http://www.jetir.org/papers/JETIR2307672.pdf