| commit | 571ca3ab32b0b1b45246699ec9493c6688c45661 | [log] [tgz] |
|---|---|---|
| author | Martin Lueker-Boden <martin.lueker-boden@wdc.com> | Tue Dec 07 15:18:12 2021 -0800 |
| committer | Martin Lueker-Boden <47870387+martin-lueker@users.noreply.github.com> | Thu Dec 16 14:17:21 2021 -0800 |
| tree | e3875fd4f1af8788e18357b23d24dc0df73c77d0 | |
| parent | 0082f242dda26a0913b30240c691cbac1e78fe47 [diff] |
[ entropy_src, dv ] Support for indefinitely long sequences
- New "indefinite" push-pull sequence for generating arbitrary long sequences
- Will send host seequences indefinitely until stop() method invoked
- Default indefinite sequence generates uniform random variables
- Derived classes can override the randomize() method.
- Base, smoke and RNG sequences rewritten to use indefinite sequences
- Scoreboard modified to support dropped seeds.
- If a given RNG-derived sequence item does not match what is read from TLUL, it is assumed
that the corresponding seed has been dropped.
- The scoreboard goes through the TLM FIFO examining all available seeds. If none match,
then the TL transaction is found to be in error.
- NOTE: This mechanism has yet to be implemented for the CSRNG interface.
Signed-off-by: Martin Lueker-Boden <martin.lueker-boden@wdc.com>
Co-authored-by: weicaiyang <49293026+weicaiyang@users.noreply.github.com>
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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