Blockchain Security Protocols: A Cryptographic Analysis

Abstract

Blockchain technology has emerged as a transformative solution for decentralized and secure data management. However, the security of blockchain networks heavily relies on robust cryptographic protocols. This article provides a comprehensive analysis of key cryptographic techniques employed in blockchain security, including hash functions, digital signatures, consensus algorithms, and zero-knowledge proofs. We evaluate their roles in ensuring data integrity, authentication, confidentiality, and resistance to common attacks such as double-spending and Sybil attacks. A comparative study highlights the strengths and limitations of these protocols, guiding future enhancements for blockchain security frameworks