The lattice-based cryptography problems are known to be secure against the quantum computing attacks, till date no known quantum algorithm is able to solve these hard problems in lattices. Their naive implementations on embedded devices are, however, vulnerable to side-channel analysis (SCA) attacks with full key recovery possible via power/EM leakage analysis. This work analyses and attacks the power side channel leakage in the baseline hardware architecture of schoolbook polynomial multiplication, that is an essential component of most of the lattice based cryptography implementations. We first undertake a horizontal correlation power analysis (HCPA) method, optimized to work independent of the precise attack location specification in the schoolbook polynomial multiplier power leakage profile. Inspite of the inherent difficulties in HCPA, the attack is extremely efficient; with an 99.90% accuracy of recovering any one sub secret-key using only a single trace. Next we undertake the vertical correlation power analysis (VCPA) attack on the schoolbook polynomial multiplier power leakage profile, that requires larger number of power traces to analyze the correlation. Finally, we propose a novel combined correlation power analysis (CCPA) method that combines the strengths of both the VCPA and the HCPA to further improve the attacking capability of HCPA. We report a complete secret key recovery with a 100% accuracy by using only 4 power traces.
|Title of host publication||Proceedings: 2022 IEEE 35th International System-on-Chip Conference, SOCC 2022|
|Editors||Sakir Sezer, Thomas Buchner, Jurgen Becker, Andrew Marshall, Fahad Siddiqui, Tanja Harbaum, Kieran McLaughlin|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||6|
|Publication status||Published - 10 Oct 2022|
|Event||35th IEEE International System-on-Chip Conference, SOCC 2022 - Belfast, Northern Ireland, United Kingdom|
Duration: 05 Sep 2022 → 08 Sep 2022
|Name||International System on Chip Conference|
|Conference||35th IEEE International System-on-Chip Conference, SOCC 2022|
|City||Belfast, Northern Ireland|
|Period||05/09/2022 → 08/09/2022|
Bibliographical noteFunding Information:
This work is supported by grants from National Natural Science Foundation of China (62022041 62134002 62104107), Natural Science Foundation of Jiangsu Province (BK20210287), the Royal Society Research Grant IEC/ NSFC/211024 and EPSRC Quantum Communications Hub (EP/T001011/1).
© 2022 IEEE.
- Correlation power analysis
- Horizontal CPA (HCPA)
- Lattice-based cryptography
- School-book polynomial multiplier
- Side-channel analysis
ASJC Scopus subject areas
- Hardware and Architecture
- Control and Systems Engineering
- Electrical and Electronic Engineering