tree 99c3a43e2163752a35720069765a233f8690db61
parent 463acb4d50929fc3d3c803c7de8a55c07694c951
author Jerome Forissier <jerome@forissier.org> 1579210192 +0100
committer Jérôme Forissier <jerome@forissier.org> 1579270597 +0100

core: ltc: SM2 PKE: fix bignum conversions

All integers used in the SM2 algorithms are encoded as 32 byte buffers
in big endian format. The current code does not properly pad the buffer
with zeros when a value does not need the whole 32 bytes and has a few
other related issues. Fix that.

Fixes: f9a78287dd12 ("core: ltc: add support for SM2 PKE")
Signed-off-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>