Paper Info
Title
Efficient and Secure Two-Party Distributed Signing Protocol for the GOST Signature Algorithm.
Abstract
Mobile devices, such as Android and iOS devices, are often used for electronic/mobile commerce (e.g. payments using WeChat Pay and Bitcoin wallet). Hence, ensuring the security of a user’s private key stored on the device is crucial. To reduce the risk of private key leakage, a number of (t, n) threshold secret sharing protocols have been proposed in the literature. However, (t, n) threshold secret sharing protocols are generally not designed to mitigate key reconstruction attacks. Hence, in this paper we propose an efficient and secure two-party distributed signing protocol for the GOST signature algorithm, a Russian cryptographic standard algorithm. This allows us to separate a single private key to two mobile devices and generate a valid signature without reconstructing the entire private key. We then prove that our protocol is secure under non-standard assumption. Moreover, we implement our protocol using MIRACL Cryptographic SDK and evaluate its performance on two Android devices and two personal computers.
Year
DOI
Venue
2020
10.1007/978-981-15-9031-3_1
SocialSec
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
15
5
Name
Order
Citations
PageRank
Yunru Zhang141.73
Min Luo27110.92
Kim-Kwang Raymond Choo34103362.49
Li Li47624.03
Debiao He52856147.71