Role of Zero-Knowledge Proof in Blockchain Security

Abstract

Distributed Ledger Technology is also known as blockchain technology. It brings the characteristics like transparency, decentralization, immutability, and the distributed ledger in one package. The user identity of the public blockchain is anonymous on the network and cannot control the confidentiality and privacy of their data. The Anonymity of a user does not mean privacy. The importance of user and data privacy and confidentiality in blockchain technology is realized and is yet to be addressed by blockchain protocols. Zero-Knowledge-Proof can be the best solution to this problem. It is relatively new and is developing very rapidly. Zero-Knowledge-Proof can provide strong privacy if the security model is well understood and used carefully. Zero-Knowledge-Proof makes sure that no one accesses the secured data except the user. Paper discusses the types and the various applications of the Zero-Knowledge-Proof in the blockchain.