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Title: Enabling standardized cryptography on ultra-constrained 4-bit microcontrollers
Authors: Kaufmann, Tino
Poschmann, Axel
Keywords: DRNTU::Science::Mathematics::Discrete mathematics::Cryptography
Issue Date: 2012
Source: Kaufmann, T., & Poschmann, A. (2012). Enabling standardized cryptography on ultra-constrained 4-bit microcontrollers. 2012 IEEE International Conference on RFID (RFID).
Abstract: 4-bit microcontrollers (MCUs) are among the simplest, cheapest and most abundant computing devices that, thanks to their low power consumption, may be deployed even in passive RFID tags. Besides, 4-bit MCUs are embedded in a wide variety of daily-life objects that, when connected to a network, could become a substantial part of the Internet of Things. Despite the fact that quite a number of applications are security sensitive, no implementation of standardized cryptography has been available yet. In this work we present the first implementation of the Advanced Encryption Standard (AES) on a 4-bit MCU and thus, by closing this gap, enable security functionalities on myriads of legacy devices. Besides, we describe the first software implementation of PRINTcipher, a recently proposed block cipher optimized for printed electronics. We describe and apply various optimization techniques to develop time and code-size efficient implementations on the MARC4. As a result our AES implementation is not only the first on a 4-bit MCU, but also the most efficient among all cryptographic algorithms.
DOI: 10.1109/RFID.2012.6193053
Rights: © 2012 IEEE.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Conference Papers

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