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mupq / pqm4

Post-quantum crypto library for the ARM Cortex-M4
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improve compression for PERK short levels I and II #328

Closed marco-palumbi closed 10 months ago

marco-palumbi commented 10 months ago

This PR improves the signature compression/decompression for the levels I and II short. It customizes the array size of the tinybn library for the needs of the sizes of the permutations.

I successfully tested it with the ./testvectors.py script on the stm32f4discovery board. I got errors running ./testvectors.py script with -pmps2-an386 (qemu emulator) but I got the same error trying to run testvectors for dilithium2. I then think that the problem is somewhere outside of my PR. Please give a look into this.

Would be nice if you can merge this before running all the benchmarks... Thanks

marco-palumbi commented 10 months ago

Problem with qemu was because an older compiler toolchain. using Arm GNU Toolchain 13.2.rel1 fixed the issue.

rpls commented 10 months ago

All testvectors pass for me. I'll merge it.

rpls commented 10 months ago

Stack benchmarks also remain unchanged.