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Breaking a fully Balanced ASIC Coprocessor Implementing Complete Addition Formulas on Weierstrass Elliptic Curves
January 04, 2022 · Declared Dead · 🏛 Euromicro Symposium on Digital Systems Design
"No code URL or promise found in abstract"
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Authors
Ievgen Kabin, Zoya Dyka, Dan Klann, Nele Mentens, Lejla Batina, Peter Langendoerfer
arXiv ID
2201.01158
Category
cs.CR: Cryptography & Security
Citations
8
Venue
Euromicro Symposium on Digital Systems Design
Last Checked
3 months ago
Abstract
In this paper we report on the results of selected horizontal SCA attacks against two open-source designs that implement hardware accelerators for elliptic curve cryptography. Both designs use the complete addition formula to make the point addition and point doubling operations indistinguishable. One of the designs uses in addition means to randomize the operation sequence as a countermeasure. We used the comparison to the mean and an automated SPA to attack both designs. Despite all these countermeasures, we were able to extract the keys processed with a correctness of 100%.
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