Algorithm

Scheme (mathematics)

Philosophy

Pure mathematics

Hash function

Digital signature

Computer security

Field (mathematics)

Blockchain

Computer science

Signature (topology)

Mathematics

Information security

Epistemology

Mathematical analysis

Geometry

Non-repudiation

Property (philosophy)

State (computer science)

Key (lock)

EURASIP Journal on Wireless Communications and Networking

Blockchain, as one of the most promising technology, has attracted tremendous attention. The interesting characteristics of blockchain are decentralized ledger and strong security, while non-repudiation is the important property of information security in blockchain. A digital signature scheme is an effective approach to achieve non-repudiation. In this paper, the characteristics of blockchain and the digital signature to guarantee information non-repudiation are firstly discussed. Secondly, the typical digital signature schemes in blockchain are classified and analyzed, and then the state-of-the-art digital signatures are investigated and compared in terms of application fields, methods, security, and performance. Lastly, the conclusions are given, and some future works are suggested to stir research efforts in this field. Our works will facilitate to design efficient and secure digital signature algorithms in blockchain.

Digital signature scheme for information non-repudiation in blockchain: a state of the art review