University of Oulu

N. Lehto, K. Halunen, O. -M. Latvala, A. Karinsalo and J. Salonen, "CryptoVault - A Secure Hardware Wallet for Decentralized Key Management," 2021 IEEE International Conference on Omni-Layer Intelligent Systems (COINS), 2021, pp. 1-4, doi: 10.1109/COINS51742.2021.9524133.

CryptoVault : a secure hardware wallet for decentralized key management

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Author: Lehto, Niko1; Halunen, Kimmo2; Latvala, Outi-Marja1;
Organizations: 1VTT Technical Research Centre of Finland, Oulu, Finland
2Department of Military Technology, National Defence University, Helsinki, Finland
3VTT Technical Research Centre of Finland, Tampere, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.1 MB)
Persistent link:
Language: English
Published: , 2021
Publish Date: 2022-09-20


In traditional centralized internet services, third parties authenticate the transactions of the users. An important property of decentralized blockchain networks is the unrestricted and secured access to the private keys of users, which may often be threatened for several reasons. One considerable problem in systems based on blockchain technology is when users lose access to their keys due to, e.g., a broken or lost device. This paper, firstly, introduces an implementation that generates and maintains the private key in an Intel Software Guard Extension (SGX) enclave. The implementation allows using the private key in a process isolated from all other processes running on the same system. Secondly, the paper provides a method that enables the secure storage and recovery of a back-up key to and from an external repository, using an end-to-end secure connection. One proposed application, with which this technology could be exploited, is the social wallet.

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ISBN: 978-1-6654-3156-9
ISBN Print: 978-1-6654-3157-6
Article number: 9524133
DOI: 10.1109/COINS51742.2021.9524133
Host publication: 2021 IEEE International Conference on Omni-Layer Intelligent Systems (COINS) : 23 August - 26 August 2021, Barcelona, Spain
Conference: IEEE International Conference on Omni-Layer Intelligent Systems
Type of Publication: A4 Article in conference proceedings
Field of Science: 113 Computer and information sciences
Funding: This research has been conducted in the CyberSec4Europe - Cyber Security Network of Competence Centres for Europe project funded by the European Union under the H2020 Programme Grant Agreement No. 830929.
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