Classic McEliece on the ARM Cortex-M4

This paper presents a constant-time implementation of Classic McEliece for ARM Cortex-M4. Specifically, our target platform is stm32f4-Discovery, development board on which the amount SRAM not even large enough to hold public key smallest parameter sets McEliece. Fortunately, flash memory enough, so we use it store key. For level-1 mceliece348864 and mceliece348864f, takes 582 199 cycles encapsulation 2 706 681 decapsulation. Compared set FrodoKEM, time more than 80 times faster, decapsulation 17 faster. level-3 mceliece460896 mceliece460896f, 1 081 335 6 535 186 In addition, also able carry out generation level-5 board.