| commit | 95cea45d4f2912324a0fba32e97e2f87a14bea03 | [log] [tgz] |
|---|---|---|
| author | Pirmin Vogel <vogelpi@lowrisc.org> | Tue Mar 02 08:54:01 2021 +0100 |
| committer | Michael Schaffner <msf@google.com> | Fri Mar 05 11:59:40 2021 -0800 |
| tree | c6863486636491945c998051742ff4e1254b869a | |
| parent | a63640ec01fbac7a8c43d75ca461faf97675654f [diff] |
[aes] Interface CSRNG through EDN This commit interfaces the AES unit with CSRNG/EDN to reseed the internal PRNGs for clearing and masking. Since on the SCA platform, we don't have enough resources to implement CSRNG and EDN, a new parameter SecSkipPRNGReseeding is added to skip reseeding requests on the SCA platform. If the reseeding was done with deterministic input instead of entropy provided by CSRNG, this would result in quickly repeating, deterministic PRNG output which is not suitable for evaluating SCA resistance. Signed-off-by: Pirmin Vogel <vogelpi@lowrisc.org>
OpenTitan is an open source silicon Root of Trust (RoT) project. OpenTitan will make the silicon RoT design and implementation more transparent, trustworthy, and secure for enterprises, platform providers, and chip manufacturers. OpenTitan is administered by lowRISC CIC as a collaborative project to produce high quality, open IP for instantiation as a full-featured product. See the OpenTitan site and OpenTitan docs for more information about the project.
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