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Authors: Julius Hekkala 1 ; Sara Nikula 1 ; Outi-Marja Latvala 1 and Kimmo Halunen 2 ; 3

Affiliations: 1 VTT Technical Research Centre of Finland, Kaitoväylä 1, Oulu, Finland ; 2 National Defence University, Department of Military Technology, Helsinki, Finland ; 3 University of Oulu, Faculty of Information Technology and Electrical Engineering, Oulu, Finland

Keyword(s): Human Understandable Cryptography, Visualizable Cryptography, Narrative Authentication, Secure Channel.

Abstract: Our digital lives rely on modern cryptography that is based on complicated mathematics average human users cannot follow. Previous attempts at adding the human user into the cryptographic loop include things like Human Authenticated Key Exchange and visualizable cryptography. This paper presents our proof-of-concept implementation of these ideas as a system called EEVEHAC. It utilizes human capabilities to achieve an end-to-end encrypted channel between a user and a server that is authenticated with human senses and can be used through untrusted environments. The security of this complete system is analyzed. We find that the combination of the two different systems into EEVEHAC on a theoretical level retains the security of the individual systems. We also identify the weaknesses of this implementation and discuss options for overcoming them.

CC BY-NC-ND 4.0

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Paper citation in several formats:
Hekkala, J.; Nikula, S.; Latvala, O. and Halunen, K. (2021). Involving Humans in the Cryptographic Loop: Introduction and Threat Analysis of EEVEHAC. In Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT, ISBN 978-989-758-524-1; ISSN 2184-7711, pages 659-664. DOI: 10.5220/0010517806590664

@conference{secrypt21,
author={Julius Hekkala. and Sara Nikula. and Outi{-}Marja Latvala. and Kimmo Halunen.},
title={Involving Humans in the Cryptographic Loop: Introduction and Threat Analysis of EEVEHAC},
booktitle={Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT,},
year={2021},
pages={659-664},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010517806590664},
isbn={978-989-758-524-1},
issn={2184-7711},
}

TY - CONF

JO - Proceedings of the 18th International Conference on Security and Cryptography - SECRYPT,
TI - Involving Humans in the Cryptographic Loop: Introduction and Threat Analysis of EEVEHAC
SN - 978-989-758-524-1
IS - 2184-7711
AU - Hekkala, J.
AU - Nikula, S.
AU - Latvala, O.
AU - Halunen, K.
PY - 2021
SP - 659
EP - 664
DO - 10.5220/0010517806590664