TY - GEN
T1 - Anonymous Post-Quantum Cryptocash
AU - Zhang, Huang
AU - Zhang, Fangguo
AU - Tian, Haibo
AU - Au, Man Ho
N1 - Funding Information:
This work was supported by the National Key R&D Program of China (2017YFB0802503), the National Natural Science Foundation of China (No. 61672550) and the Fundamental Research Funds for the Central Universities (No.17lgjc45). The authors are grateful to the anonymous reviewers for their valuable suggestions and comments on this paper.
Publisher Copyright:
© International Financial Cryptography Association 2018.
PY - 2018
Y1 - 2018
N2 - In this paper, we construct an anonymous and decentralized cryptocash system which is potentially secure against quantum computers. In order to achieve that, a linkable ring signature based on ideal lattices is proposed. The size of a signature in our scheme is $$O(\log N)$$, where N is the cardinality of the ring. The framework of our cryptocash system follows that of CryptoNote with some modifications. By adopting the short quantum-resistant linkable ring signature scheme, our system is anonymous and efficient. We also introduce how to generate the verifying and signing key pairs of the linkable ring signature temporarily. With these techniques, the privacy of users is protected, even though their transactions are recorded in the public ledger.
AB - In this paper, we construct an anonymous and decentralized cryptocash system which is potentially secure against quantum computers. In order to achieve that, a linkable ring signature based on ideal lattices is proposed. The size of a signature in our scheme is $$O(\log N)$$, where N is the cardinality of the ring. The framework of our cryptocash system follows that of CryptoNote with some modifications. By adopting the short quantum-resistant linkable ring signature scheme, our system is anonymous and efficient. We also introduce how to generate the verifying and signing key pairs of the linkable ring signature temporarily. With these techniques, the privacy of users is protected, even though their transactions are recorded in the public ledger.
UR - http://www.scopus.com/inward/record.url?scp=85072862794&partnerID=8YFLogxK
U2 - 10.1007/978-3-662-58387-6_25
DO - 10.1007/978-3-662-58387-6_25
M3 - Conference article published in proceeding or book
AN - SCOPUS:85072862794
SN - 9783662583869
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 461
EP - 479
BT - Financial Cryptography and Data Security - 22nd International Conference, FC 2018, Revised Selected Papers
A2 - Meiklejohn, Sarah
A2 - Sako, Kazue
PB - Springer Verlag
T2 - 22nd International Conference on Financial Cryptography and Data Security, 2018
Y2 - 26 February 2018 through 2 March 2018
ER -