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Code signing and transparency for containers and binaries

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#### Summary The attach/download SBOM commands have been declared as deprecated long time ago. I believe it is a good time to cleanup these not recommended actions. #### Release Note...

**Description** In a Bring your Own PKI scenario, a user may want to specify a CRL file ( in addition to a fullchain file ) that can be used to...

enhancement

This PR adds support for the new [Cosign Bundle Specification](https://github.com/sigstore/cosign/blob/main/specs/BUNDLE_SPEC.md) in `cosign verify-attestation`. This works in conjunction with https://github.com/sigstore/cosign/pull/3888 and is interoperable with GitHub Artifact Attestations. Related: https://github.com/sigstore/cosign/issues/3139 This is...

This PR adds support for the new [Cosign Bundle Specification](https://github.com/sigstore/cosign/blob/main/specs/BUNDLE_SPEC.md) in `cosign attest`. Related: https://github.com/sigstore/cosign/issues/3139 This is in draft for now pending: - [ ] TSA timestamp payload modified per...

## Migration of Public API in support of sigstore-go migration As we work toward [support of the TrustedRoot](https://github.com/sigstore/cosign/issues/3700) in the cosign verifier, I would like to take a moment to...

enhancement

**Description** There are cases where using the public Sigstore deployment is not an option, e.g. privacy concerns. Some organizations may opt to provide their own Sigstore deployment. Verifiers must then...

enhancement

Hi , I was trying out the `cosign verify --key cosign.pub $IMAGE:$TAG --insecure-ignore-tlog=true` it did the verification , but when i am passing inter1.crt , where `inter1.crt` is the certificate...

enhancement

#### Summary Fixes #3880, allowing `dockerfile verify` to validate Dockerfiles where stage names are used in `FROM` statements #### Release Note * Fixed bug that made `dockerfile verify` fail when...

**Description** When a Dockerfile contains a `FROM` statement using a stage name instead of image, `dockerfile verify` fails because `cosign` tries to pull the stage name as if it was...

bug

**Description** 1. [This unit test](https://github.com/sigstore/cosign/blob/780780b11e0998512c034317fd7e98776153e59d/pkg/cosign/ctlog_test.go#L33) does not use a temporary sandbox and therefore uses the user's existing TUF configuration, if it exists, as part of its test. 2. Other related...

bug