SCHNORR SIGNATURE SCHEME USING ELLIPTIC CURVE CRYPTOGRAPHY IN SECURING ETHEREUM TRANSACTION

• Main Author: Hansel, Billy
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/76248
• Institution: Institut Teknologi Bandung

Money is a mean of payment that can be used freely. In addition to the currencies that are generally known, we are now introduced to cryptocurrencies. This cryptocurrency can be traded by everyone around the world without having to purchase the money physically. To secure the cryptocurrency transaction, it is necessary to have a cryptographic scheme that can sign each transaction so that each transaction is unique and can be distinguished from one another. One of the cryptocurrencies that has the second highest selling price on the market, Ethereum, uses elliptic curve cryptography in its security process, which is Elliptic Curve Digital Signature Algorithm (ECDSA). However, apart from ECDSA, there is another method to sign transactions with elliptic cryptographic curves, that is Schnorr signature. In this final project, we will discuss the ECDSA and Schnorr signature schemes, which are divided into two, Schnorr single signature and Schnorr multi-signature. In addition, we will also discuss about the comparison between ECDSA scheme and Schnorr single signature and the comparison between the Schnorr single signature scheme and Schnorr multi-signature.