Abstract
An E2EE is possible to implement on resource constraint microcontrollers using a high-level programming language. A secure protocol based on a well-known key-exchange technique Diffie-Hellman-Merkle and TLS1.3 style session-key negotiation is implemented and tested. Large primes are not needed in the modified DHM key-exchange protocol \(x^b\ (\textrm{mod}\ P) \equiv y^a\ (\textrm{mod}\ P)\). MicroPython modules are developed to provide identification, authentication, and privacy of messages between two communicating end-points. The limiting factor of large integers arithmetic in Python is the amount of runtime time RAM available. An end-to-end is an application-level protocol and thus can be used for any form of message exchange.
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Encheva, S., Tumin, S. (2022). Simple E2EE Secure Communication Protocol for Tiny IoT Devices. In: Luo, Y. (eds) Cooperative Design, Visualization, and Engineering. CDVE 2022. Lecture Notes in Computer Science, vol 13492. Springer, Cham. https://doi.org/10.1007/978-3-031-16538-2_29
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DOI: https://doi.org/10.1007/978-3-031-16538-2_29
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