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@mtrmac mtrmac commented Aug 20, 2024

This backports #2524 and #2526 :

This adds the ability to accept sigstore signatures signed by any key from a set of several (huge thanks to @dcermak and @danishprakash for doing almost all the work), and Rekor log presence proofs signed by any key from a set of several keys.

Cc: @TomSweeneyRedHat

mtrmac and others added 8 commits August 20, 2024 17:46
Use a struct as an input, so that the parameters are named and
we minimize risk of inconsistencies, and make it easier to add more sources.

Should not change behavior.

Signed-off-by: Miloslav Trmač <[email protected]>
Extend loadBytesFromConfigSources to return multiple values, and to support
reading the from files; then share the code.

Signed-off-by: Miloslav Trmač <[email protected]>
because we will want to support multiple public keys, and that's
easier to do in a separate function.

Should not change behavior except for order of error checks.

Signed-off-by: Miloslav Trmač <[email protected]>
The new fields `KeyPaths` and `KeyDatas` is taken directly from
`/etc/containers/policy.json` and allows users to provide multiple signature
keys to be used to verify images. Only one of the keys has to verify, thereby
this mechanism allows us to have support seamless key rotation on a registry.

This fixes containers#2319

Signed-off-by: Dan Čermák <[email protected]>
Co-authored-by: Danish Prakash <[email protected]>
Signed-off-by: Miloslav Trmač <[email protected]>
Add rekorPublicKeyPaths and rekorPublicKeyDatas , similar to the primary
root of trust public keys.

Signed-off-by: Miloslav Trmač <[email protected]>
This adds the ability to accept sigstore signatures signed by
any key from a set of several (huge thanks to @dcermak and
@danishprakash for doing almost all the work), and Rekor log
presence proofs signed by any key from a set of several keys.

Signed-off-by: Miloslav Trmač <[email protected]>
Signed-off-by: Miloslav Trmač <[email protected]>
@TomSweeneyRedHat
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LGTM

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@mheon
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mheon commented Aug 20, 2024

LGTM

@TomSweeneyRedHat TomSweeneyRedHat merged commit 51d37e8 into containers:release-5.32 Aug 20, 2024
@mtrmac mtrmac deleted the 5.32-backport branch August 20, 2024 18:09
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4 participants