Cryptographic Techniques for Enhancing Data Integrity in Blockchain

Abstract

management by introducing decentralized, immutable, and transparent ledgers. At the heart of blockchain's robustness lies its cryptographic foundation, which ensures data integrity, authenticity, and security. This paper delves into the cryptographic techniques employed in blockchain systems to enhance data integrity. We explore fundamental mechanisms such as hash functions, digital signatures, and Merkle trees, as well as advanced methods like zero-knowledge proofs and homomorphic encryption. By analyzing these techniques, we aim to provide a comprehensive understanding of how cryptography fortifies blockchain against data tampering and unauthorized access.