| commit | a87f5b761c3251c0fc34b5853b9544ea00916d17 | [log] [tgz] |
|---|---|---|
| author | Pirmin Vogel <vogelpi@lowrisc.org> | Mon Dec 06 16:30:03 2021 +0100 |
| committer | Pirmin Vogel <vogelpi@lowrisc.org> | Thu Dec 09 13:25:09 2021 +0100 |
| tree | 7195adb572a1d801e64d200b998984c3335eb237 | |
| parent | 91fc0db225365f1c79094404b51d8100694706f6 [diff] |
[aes] Switch to multi-rail cipher core FSM This commit switches the cipher core FSM to a multi-rail implementation to protect the design against control-path FI. Some relevant control signals use multi-bit encodings and every rail evaluates and drives one bit of these signals only. To prevent synthesis optimizations and resource sharing between individual rails, prim_buf cells are used as optimization barriers. 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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