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ci(deps): update dependency sigstore/cosign to v2.6.1

Deniz Raif Durmazrequested to merge
renovate/sigstore-cosign-2.x into main

This MR contains the following updates:

Package Update Change
sigstore/cosign minor 2.4.2 -> 2.6.1

Release Notes

sigstore/cosign (sigstore/cosign)

v2.6.1

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Bug Fixes

  • Partially populate the output of cosign verify when working with new bundles (#​4416)
  • Bump sigstore-go, move conformance back to tagged release (#​4426)

v2.6.0

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v2.6.0 introduces a number of new features, including:

  • Signing an in-toto statement rather than Cosign constructing one from a predicate, along with verifying a statement's subject using a digest and digest algorithm rather than providing a file reference (#​4306)
  • Uploading a signature and its verification material (a "bundle") as an OCI Image 1.1 referring artifact, completing #​3927 (#​4316)
  • Providing service URLs for signing and attesting using a SigningConfig. Note that this is required when using a Rekor v2 instance (#​4319)

Example generation and verification of a signed in-toto statement:

cosign attest-blob --new-bundle-format=true --bundle="digest-key-test.sigstore.json" --key="cosign.key" --statement="../sigstore-go/examples/sigstore-go-signing/intoto.txt"
cosign verify-blob-attestation --bundle="digest-key-test.sigstore.json" --key=cosign.pub --type=unused --digest="b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9" --digestAlg="sha256"

Example container signing and verification using the new bundle format and referring artifacts:

cosign sign --new-bundle-format=true ghcr.io/user/alpine@sha256:a19367999603840546b8612572e338ec076c6d1f2fec61760a9e11410f546733
cosign verify --new-bundle-format=true ghcr.io/user/alpine@sha256:a19367999603840546b8612572e338ec076c6d1f2fec61760a9e11410f546733

Example usage of a signing config provided by the public good instance's TUF repository:

cosign sign-blob --use-signing-config --bundle sigstore.json README.md
cosign verify-blob --new-bundle-format --bundle sigstore.json --certificate-identity $EMAIL --certificate-oidc-issuer $ISSUER --use-signed-timestamps README.md

v2.6.0 leverages sigstore-go's signing and verification APIs gated behind these new flags. In an upcoming major release, we will be updating Cosign to default to producing and consuming bundles to align with all other Sigstore SDKs.

Features

  • Add to attest-blob the ability to supply a complete in-toto statement, and add to verify-blob-attestation the ability to verify with just a digest (#​4306)
  • Have cosign sign support bundle format (#​4316)
  • Add support for SigningConfig for sign-blob/attest-blob, support Rekor v2 (#​4319)
  • Add support for SigningConfig in sign/attest (#​4371)
  • Support self-managed keys when signing with sigstore-go (#​4368)
  • Don't require timestamps when verifying with a key (#​4337)
  • Don't load content from TUF if trusted root path is specified (#​4347)
  • Add a terminal spinner while signing with sigstore-go (#​4402)
  • Require exclusively a SigningConfig or service URLs when signing (#​4403)
  • Remove SHA256 assumption in sign-blob/verify-blob (#​4050)
  • Bump sigstore-go, support alternative hash algorithms with keys (#​4386)

Breaking API Changes

  • sign.SignerFromKeyOpts no longer generates a key. Instead, it returns whether or not the client needs to generate a key, and if so, clients should call sign.KeylessSigner. This allows clients to more easily manage key generation.

Bug Fixes

  • Verify subject with bundle only when checking claims (#​4320)
  • Fixes to cosign sign / verify for the new bundle format (#​4346)

v2.5.3

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Features

  • Add signing-config create command (#​4280)
  • Allow multiple services to be specified for trusted-root create (#​4285)
  • feat: Add OCI 1.1+ experimental support to tree (#​4205)
  • Add validity period end for trusted-root create (#​4271)

Bug Fixes

  • Fix cert verification logic for trusted-root/SCTs (#​4294)
  • force when copying the latest image to overwrite (#​4298)
  • avoid double-loading trustedroot from file (#​4264)

v2.5.2

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Bug Fixes

  • Do not load trusted root when CT env key is set

Documentation

  • docs: improve doc for --no-upload option (#​4206)

v2.5.1

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Features

  • Add Rekor v2 support for trusted-root create (#​4242)
  • Add baseUrl and Uri to trusted-root create command
  • Upgrade to TUF v2 client with trusted root
  • Don't verify SCT for a private PKI cert (#​4225)
  • Bump TSA library to relax EKU chain validation rules (#​4219)

Bug Fixes

  • Bump sigstore-go to pick up log index=0 fix (#​4162)
  • remove unused recursive flag on attest command (#​4187)

Docs

  • Fix indentation in verify-blob cmd examples (#​4160)

Releases

  • ensure we copy the latest tags on each release (#​4157)

Contributors

  • arthurus-rex
  • Babak K. Shandiz
  • Bob Callaway
  • Carlos Tadeu Panato Junior
  • Colleen Murphy
  • Dmitry Savintsev
  • Emmanuel Ferdman
  • Hayden B
  • Ville Skyttä

v2.5.0

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v2.5.0 includes an implementation of the new bundle specification, attesting and verifying OCI image attestations uploaded as OCI artifacts. This feature is currently gated behind the --new-bundle-format flag when running cosign attest.

Features

  • Add support for new bundle specification for attesting/verifying OCI image attestations (#​3889)
  • Feat/non filename completions (#​4115)
  • Add TSA certificate related flags and fields for cosign attest (#​4079)

Fixes

  • cmd/cosign/cli: fix typo in ignoreTLogMessage (#​4111)
  • Fix replace with compliant image mediatype (#​4077)

Contributors

  • Bob Callaway
  • Carlos Tadeu Panato Junior
  • Cody Soyland
  • Dmitry Savintsev
  • Hayden B
  • Ramon Petgrave
  • Riccardo Schirone
  • Stef Graces
  • Ville Skyttä

v2.4.3

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Features

  • Bump sigstore/sigstore to support KMS plugins (#​4073)
  • Enable fetching signatures without remote get. (#​4047)
  • Feat/file flag completion improvements (#​4028)
  • Update builder to use go1.23.6 (#​4052)

Bug Fixes

  • fix parsing error in --only for cosign copy (#​4049)

Cleanup

  • Refactor verifyNewBundle into library function (#​4013)
  • fix comment typo and imports order (#​4061)
  • sync comment with parameter name in function signature (#​4063)
  • sort properly Go imports (#​4071)

Contributors

  • Bob Callaway
  • Carlos Tadeu Panato Junior
  • Cody Soyland
  • Dmitry Savintsev
  • Hayden B
  • Tomasz Janiszewski
  • Ville Skyttä

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