Open AccessA Hybrid Design of Linkable Ring Signature Scheme with Stealth Addresses
Author(s) -
Weizhou Li,
Zhiqiang Lin,
Qi Chen
Publication year - 2022
Publication title -
security and communication networks
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.446
H-Index - 43
eISSN - 1939-0114
pISSN - 1939-0122
DOI - 10.1155/2022/1417607
Subject(s) - computer science , ring signature , discrete logarithm , computer security , public key cryptography , scheme (mathematics) , signature (topology) , key (lock) , theoretical computer science , encryption , mathematics , mathematical analysis , geometry
Blockchain is a transformational technology which affects finance, Internet, and politics. However, many privacy protection problems for blockchain are waiting to be solved. In this study, we propose a novel linkable ring signature scheme with stealth addresses, which enables the payer and payee of the transaction to be anonymous and unlinkable in the cryptocurrency. The scheme is combined with an elliptic curve discrete logarithm (ECD logarithm)-based key encapsulation mechanism (KEM) stage and a lattice-based signature stage. The master public key and master secret key are much smaller compared with the previous scheme. Complete secure proof of the scheme is also presented in this study.
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