|author||Konrad Rzeszutek Wilk <firstname.lastname@example.org>||Fri Jun 11 22:32:41 2021 -0400|
|committer||Konrad Rzeszutek Wilk <email@example.com>||Sat Jun 12 09:05:18 2021 -0400|
10 DRC violations. Magic DRC Summary: Source: /project/openlane/user_project_wrapper/runs/user_project_wrapper/reports/magic//37-magic.drc Violation Message "Metal2 spacing < 0.14um (met2.2) "found 10 Times. Total Magic DRC violations is 10 Signed-off-by: Konrad Rzeszutek Wilk <firstname.lastname@example.org>
See a https://github.com/konradwilk/sha1 for the full git history of this code. Branch name is submission-mpw-two-c.
This is an implementation of [https://www.rfc-editor.org/rfc/inline-errata/rfc3174.html](RFC 3174) of SHA-1 engine.
It is not the most secure one nowadays (it is still used for git commit ids and TPM PCR values), but it looked like the easiest of the SHA engines to implement. The communication channel is via WishBone commands to provide sixteen words after which the engine starts and computes the digest in about 160 cycles. Then digest can be retrieved via the wishbone. There is a IRQ line so when it has completed it will bring it high if that is enabled.
If you want to see this more interactively, I would recommend you clone https://github.com/konradwilk/sha1 and run
which will use the various WishBone commands to program it.