Securing Banking Transactions with Block chain A Token less Approach

Abstract

The rapid expansion of digital banking has increased the need for stronger protection of financial transactions. Most traditional banking systems depend on centralized databases and token-based authentication methods, which are often exposed to cyberattacks, fraud, and data manipulation. This paper introduces a token-less banking transaction system that uses blockchain technology to strengthen security, transparency, and reliability. In the proposed system, banking transactions are stored as hash-linked blocks, making the records tamper-proof and immutable. Each transaction is encrypted, timestamped, and verified through cryptographic hashing without relying on tokens, wallets, or mining processes. The system includes multiple roles such as Admin, Agent, User, Auditor, and Attacker to reflect real banking operations and possible security threats. Any unauthorized change in transaction data immediately leads to a hash mismatch, allowing fraud to be quickly identified.