DATE 2023
Design, Automation and Test in Europe Conference | The European Event for Electronic System Design & Test.
Join Secure-IC for our conference on “Table Re-Computation Based Low Entropy Inner Product Masking Scheme”:
SPEAKER: Wei Cheng, R&D engineer at Secure-IC
ABSTRACT:
Masking is a popular countermeasure due to its provable security. Table re-computation based Boolean masking (BM) is efficient at small masking share number, and addition chain based inner product masking (IPM) provides higher security order than BM. As a result, the natural question is: can we design a masking scheme that costs close to that of re-computation based BM while providing security comparable to that of addition chain based IPM? In this paper, we propose a table re-computation based IPM scheme that provides 3$^{rd}$-order security while being slightly more expensive than table re-computation based BM. Furthermore, we improve the side-channel security of IPM by randomly selecting the parameter $L$ from an elaborated low entropy set, which we call low entropy inner product masking (LE-IPM). In an Intel Core i7-4790 CPU and ARM Cortex M4 based MCU for AES, we implemented four masking schemes, namely the addition chain based IPM and table re-computation based BM, IPM, and LE-IPM. Our proposals perform slightly slower (by about 0.8 times) than table re-computation based BM but significantly faster (at least 30 times) than addition chain based IPM. Furthermore, we assess the security of our proposals using a standard method named test vector leakage assessment methodology (TVLA). Our proposals provide the expected security against side-channel attacks according to the evaluation.
Book a meeting with our team during the event
Practical details:
- 🕔 14:00 – 15:30 CET
- 📅 Wednesday, 19 April 2023
- 📍 Antwerp, Belgium