Abstract
In this paper the solution of preventing active adversary attack, namely Man-in-the-Middle (MiM) attack in e-Banking system is presented. The vulnerable part of communications between user and Bank is the poor authentication level at the user’s side. Therefore, it is a challenge to provide users by the modern means of authentication using e.g. smart phones.
The conjunction of Diffie-hellman key agreement protocol and Schnorr identification protocol is presented by transforming Schnorr identification protocol to Sigma protocol.
It is proved that proposed protocol is secure against active adversary attack, namely against MiM attack under the discrete logarithm assumption.
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Bartkus, D., Kilciauskas, A., Sakalauskas, E. (2020). Sigma Key Agreement Protocol for e-Banking System. In: Lopata, A., Butkienė, R., Gudonienė, D., Sukackė, V. (eds) Information and Software Technologies. ICIST 2020. Communications in Computer and Information Science, vol 1283. Springer, Cham. https://doi.org/10.1007/978-3-030-59506-7_12
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DOI: https://doi.org/10.1007/978-3-030-59506-7_12
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