FPGA Implementation and Comparison of Protections against SCAs for RLWE

Timo Zijlstra (1) , Karim Bigou (2) , Arnaud Tisserand (1)

1 Lab-STICC_UBS_CACS_MOCS
2 Lab-STICC_UBO_CACS_MOCS

We present various FPGA implementations of protections against SCAs for RLWE-based PKE. We implemented the main solutions from the state of the art with improved variants. We also propose a new protection based on a redundant representation of the ring elements to randomize computations. We compare the implementation results of all these solutions.

Mots clés: ring learning with errors; side channel attack; blinding; masking; shuffling; randomization

Domaines: Arithmétique des ordinateurs; Cryptographie et sécurité [cs.CR]; Micro et nanotechnologies/Microélectronique

Timo Zijlstra, Karim Bigou, Arnaud Tisserand. FPGA Implementation and Comparison of Protections against SCAs for RLWE. 20th International Conference on Cryptology in India, Dec 2019, Hyderabad, India. ⟨hal-02309481⟩