| commit | 313658e6c476647b0e401292031bce10f25e4b95 | [log] [tgz] |
|---|---|---|
| author | Konrad Rzeszutek Wilk <konrad@kernel.org> | Mon Jun 14 21:41:22 2021 -0400 |
| committer | Konrad Rzeszutek Wilk <konrad@kernel.org> | Mon Jun 14 21:53:01 2021 -0400 |
| tree | 586ec6676a04f23d31afd30d00ee99461a0b33aa | |
| parent | 7f0f9fa47005e188cf13b2a0226ea5036dcd1a95 [diff] |
GDS/LEF/GL from 9bac78a 82eefb5353439068f75cca6a0d09f06e3ad15e89 gds/wrapper_sha1.gds c265eb7972487473cacd1c20b0d2a4280bcb14b2 gds/wrapper_sha1.gds.png c4c42f2be86209e002153873b1e5c6370b61fd97 gds/wrapper_sha1.lef 801999d923d36a65031349d11086d9badc311b15 gds/wrapper_sha1.lvs.powered.v 5e4a4d94d2612ebd3429d7f746250a851960bc1b gds/wrapper_sha1.lvs.v f6f33808dfdf98c63fdef3465433e7188bad1158 gds/user_project_wrapper.gds.gz f730d41d21f74b3000254210bbe21a2dd2e044ba gds/wrapper_sha1.gds.gz $ gzip -dc gds/user_project_wrapper.gds.gz | sha1sum - 9973eb59a7c64edef6d14652167a2cf08f5f77c3 - Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
See a https://github.com/konradwilk/sha1 for the full git history of this code. Branch name is submission-mpw-two.
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
make test_wb_logic
which will use the various WishBone commands to program it.