| commit | 544f725d925a127adec4a78e824a2beb40b32e67 | [log] [tgz] |
|---|---|---|
| author | Pirmin Vogel <vogelpi@lowrisc.org> | Thu Aug 25 13:31:32 2022 +0200 |
| committer | Pirmin Vogel <vogelpi@lowrisc.org> | Fri Aug 26 13:58:53 2022 +0200 |
| tree | 4bb77d59ec42d237e7f979b96e2ae849cf1dc49b | |
| parent | 585cbfb85091acccdb115df7c0342448fec2473d [diff] |
[p256/p384, otbn] Switch RND usage to URND where possible Previously, RND was used everywhere as when the p256/p384 libraries have been implemented, URND wasn't available. As RND delivers high-quality entropy which results in many reseeds of CSRNG, this is bad for performance. Instead, URND should be used unless high-quality randomness is strictly required. This commit changes the library to use URND for register initialization, scalar blinding and point rotation. For the nonce, we keep using RND (see p256_ecdsa_setup_rand() in p256_ecdsa.s). Signed-off-by: Pirmin Vogel <vogelpi@lowrisc.org>
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