| commit | ded9da4c4c58d00ef990f7f9463cfeaa9f5cbc4f | [log] [tgz] |
|---|---|---|
| author | Pirmin Vogel <vogelpi@lowrisc.org> | Mon Aug 10 18:13:18 2020 +0200 |
| committer | Pirmin Vogel <vogelpi@lowrisc.org> | Tue Aug 11 13:17:01 2020 +0200 |
| tree | f3866888b6e05fb7e5ab432c63cf581551cba0f3 | |
| parent | 4ec676ea13452cad5dd4f348cea32b0d60b3a2d5 [diff] |
[aes] Provide the initial key in two shares for security hardening This commit modifies the design such that the initial key has to be provided in two shares via separate CSRs. The actual key used for encryption and passed to the currently unmasked cipher core is obtained by combining/XORing the two shares in hardware. 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.
This repository contains hardware, software and utilities written as part of the OpenTitan project. It is structured as monolithic repository, or “monorepo”, where all components live in one repository. It exists to enable collaboration across partners participating in the OpenTitan project.
The project contains comprehensive documentation of all IPs and tools. You can access it online at docs.opentitan.org.
Have a look at CONTRIBUTING for guidelines on how to contribute code to this repository.
Unless otherwise noted, everything in this repository is covered by the Apache License, Version 2.0 (see LICENSE for full text).