Study of Cryptographic Techniques Adopted in Blockchain

This study investigates how blockchain, a decentralized ledger technology that has garnered popularity due to its potential to revolutionize industries, uses cryptography technology. In the article, the main ideas of cryptography-such as encryption, hashing, digital signatures, and public-key cryptography-as well as their applications in blockchain technology are discussed. The significance of cryptography in the blockchain is examined in the paper, with a focus on protecting user data privacy, maintaining data integrity, and authenticating transactions. By using encryption algorithms to scramble data so that only authorized parties can decrypt it, cryptography guarantees that data is protected from unauthorized access. Data integrity is protected by hashing algorithms because any alterations to the data would produce a new hash value. Transactions are authenticated using digital signatures and public-key encryption, ensuring that only authorized parties carry them out. The study also looks at the cryptographic limitations of blockchain, like the possibility of quantum attacks on public-key cryptography, which might jeopardize the security of blockchain systems. The paper's discussion of future research paths and potential areas for advancement in cryptography technology to maintain the security and robustness of blockchain systems comes to a close.