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58eede7e66 feat: gcb v1.0 support (#691)
closes https://github.com/slsa-framework/slsa-verifier/issues/683

This is a large PR, but there is not much new code.

The code adding support for v1.0 is under:
- verifiers/internal/gcb/slsaprovenance/v1.0/*
- verifiers/internal/gcb/slsaprovenance/provenance.go

The rest is mostly some re-factoring needed

Remaining is regression tests, tracked in
https://github.com/slsa-framework/slsa-verifier/issues/690

---------

Signed-off-by: laurentsimon <laurentsimon@google.com>
Signed-off-by: laurentsimon <64505099+laurentsimon@users.noreply.github.com>
Co-authored-by: Ian Lewis <ianlewis@google.com>
2023-08-18 17:32:58 +00:00
..
2023-08-18 17:32:58 +00:00
2023-08-18 17:32:58 +00:00

Download the GCB keys

This is a temporary solution. We should try to automate key verification on pre-submits. We should pin the CA certificate when downloading them, maybe using curl and the googlecloudapi REST endpoint. See discussion in #181.

For now, you can verify the keys we downloaded by downloading them yourself.

cd verifiers/internal/gcb/keys
gcloud compute regions list | grep -v NAME | xargs -0 | cut -d ' ' -f1 | xargs -i gcloud kms keys versions get-public-key 1 --location {} --keyring attestor --key builtByGCB --project verified-builder --output-file {}.key