Title: | An optimized Bitsliced Masked Adder for ARM Thumb-2 Controllers |
Authors: | Pozzobon, Enrico Renner, Sebastian Mottok, Jürgen Matoušek, Václav |
Citation: | 2022 International Conference on Applied Electronics: Pilsen, 6th – 7th September 2022, Czech Republic, p. 133-136. |
Issue Date: | 2022 |
Publisher: | Fakulta elektrotechnická ZČU |
Document type: | konferenční příspěvek conferenceObject |
URI: | http://hdl.handle.net/11025/49867 |
ISBN: | 978-1-6654-9482-3 |
Keywords: | Booleovské maskování;modulární doplněk;boční kanál;rozkouskovaný;ARM Thumb |
Keywords in different language: | Boolean masking;modular addition;side- channel;bitsliced;ARM Thumb |
Abstract in different language: | The modular addition is used as a non-linear operation in ARX ciphers because it achieves the requirement of introducing non-linearity in a cryptographic primitive while only taking one clock cycle to execute on most modern archi- tectures. This makes ARX ciphers especially fast in software implementations, but comes at the cost of making it harder to protect against side-channel information leakages using Boolean masking: the best known 2-shares masked adder for ARM Thumb micro-controllers takes 83 instructions to add two 32-bit numbers together. Our approach is to operate in bitsliced mode, performing 32 additions in parallel on a 32-bit microcontroller. We show that, even after taking into account the cost of bitslicing before and after the encryption, it is possible to achieve a higher throughput on the tested ciphers (CRAX and ChaCha20) when operating in bitsliced mode. Furthermore, we prove that no first-order information leakage is happening in either simulated power traces and power traces acquired from real hardware, after sufficient countermeasures are put into place to guard against pipeline leakages. |
Rights: | © IEEE |
Appears in Collections: | Konferenční příspěvky / Conference Papers (KIV) Applied Electronics 2022 Applied Electronics 2022 |
Files in This Item:
File | Description | Size | Format | |
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uvod.pdf | Plný text | 1,61 MB | Adobe PDF | View/Open |
An_optimized_Bitsliced_Masked_Adder_for_ARM_Thumb-2_Controllers.pdf | Plný text | 1,13 MB | Adobe PDF | View/Open |
Please use this identifier to cite or link to this item:
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