⬆️ (deps): Update dependency cosign to v3

[renovate]

This PR contains the following updates:

Package	Update	Change
cosign	major	2.2.0 → 3.0.5

---

Release Notes

sigstore/cosign (cosign)

v3.0.5

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Deprecations

• Deprecate rekor-entry-type flag (#​4691)
• Deprecate cosign triangulate (#​4676)
• Deprecate cosign copy (#​4681)

Features

• Automatically require signed timestamp with Rekor v2 entries (#​4666)
• Allow --local-image with --new-bundle-format for v2 and v3 signatures (#​4626)
• Add mTLS support for TSA client connections when signing with a signing config (#​4620)
• Enforce TSA requirement for Rekor v2, Fuclio signing (#​4683)

Bug Fixes

• Add empty predicate to cosign sign when payload type is application/vnd.in-toto+json (#​4635)
• fix: avoid panic on malformed attestation payload (#​4651)
• fix: avoid panic on malformed tlog entries (#​4649)
• fix: avoid panic on malformed replace payload (#​4653)
• Gracefully fail if bundle payload body is not a string (#​4648)
• Verify validity of chain rather than just certificate (#​4663)
• fix: avoid panic on malformed tlog entry body (#​4652)

Documentation

• docs(cosign): clarify RFC3161 revocation semantics (#​4642)
• Fix typo in CLI help (#​4701)

v3.0.4

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v3.0.4 resolves GHSA-whqx-f9j3-ch6m.

Changes

• Fix bundle verify path for old bundle/trusted root (GHSA-whqx-f9j3-ch6m) (#​4623)
• Optimize cosign tree performance by caching digest resolution (#​4612)
• Don't require a trusted root to verify offline with a key (#​4613)
• Support default services for trusted-root and signing-config creation (#​4592)

v3.0.3

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Thank you for all of your feedback on Cosign v3! v3.0.3 fixes a number of bugs reported by
the community along with adding compatibility for the new bundle format and attestation
storage in OCI to additional commands. We're continuing to work on compatibility with
the remaining commands and will have a new release shortly. If you run into any problems,
please file an issue

Changes

• 4554: Closes 4554 - Add warning when --output* is used (#​4556)
• Protobuf bundle support for subcommand clean (#​4539)
• Add staging flag to initialize with staging TUF metadata
• Updating sign-blob to also support signing with a certificate (#​4547)
• Protobuf bundle support for subcommands save and load (#​4538)
• Fix cert attachment for new bundle with signing config
• Fix OCI verification with local cert - old bundle
• Deprecate tlog-upload flag (#​4458)
• fix: Use signal context for sign cli package.
• update offline verification directions (#​4526)
• Fix signing/verifying annotations for new bundle
• Add support to download and attach for protobuf bundles (#​4477)
• Add --signing-algorithm flag (#​3497)
• Refactor signcommon bundle helpers
• Add --bundle and fix --upload for new bundle
• Pass insecure registry flags through to referrers
• Add protobuf bundle support for tree subcommand (#​4491)
• Remove stale embed import (#​4492)
• Support multiple container identities
• Fix segfault when no attestations are found (#​4472)
• Use overridden repository for new bundle format (#​4473)
• Remove --out flag from cosign initialize (#​4462)
• Deprecate offline flag (#​4457)
• Deduplicate code in sign/attest* and verify* commands (#​4449)
• Cache signing config when calling initialize (#​4456)

v3.0.2

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v3.0.2 is a functionally equivalent release to v3.0.0 and v3.0.1, with a fix for CI to publish signed releases in the new bundle format.

• Note that the --bundle flag specifying an output file to write the Sigstore bundle (which contains all relevant verification material) has moved from optional to required in v3.

Changes

• choose different signature filename for KMS-signed release signatures (#​4448)
• Update rekor-tiles version path (#​4450)

v3.0.1

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v3.0.1 is an equivalent release to v3.0.0, which was never published due to a failure in our CI workflows.

• Note that the --bundle flag specifying an output file to write the Sigstore bundle (which contains all relevant verification material) has moved from optional to required in v3.

Changes

• update goreleaser config for v3.0.0 release (#​4446)

v2.6.2

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v2.6.2 resolves GHSA-whqx-f9j3-ch6m.

Changes

• Fix bundle verify path for old bundle/trusted root (GHSA-whqx-f9j3-ch6m) (#​4624)
• bump sigstore deps to resolve build errors (#​4619)

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

v2.4.2

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Features

• Updated open-policy-agent to 1.1.0 library (#​4036)
  • Note that only Rego v0 policies are supported at this time
• Add UseSignedTimestamps to CheckOpts, refactor TSA options (#​4006)
• Add support for verifying root checksum in cosign initialize (#​3953)
• Detect if user supplied a valid protobuf bundle (#​3931)
• Add a log message if user doesn't provide --trusted-root (#​3933)
• Support mTLS towards container registry (#​3922)
• Add bundle create helper command (#​3901)
• Add trusted-root create helper command (#​3876)

Bug Fixes

• fix: set tls config while retaining other fields from default http transport (#​4007)
• policy fuzzer: ignore known panics (#​3993)
• Fix for multiple WithRemote options (#​3982)
• Add nightly conformance test workflow (#​3979)
• Fix copy --only for signatures + update/align docs (#​3904)

Documentation

• Remove usage.md from spec, point to client spec (#​3918)
• move reference from gcr to ghcr (#​3897)

Contributors

• AdamKorcz
• Aditya Sirish
• Bob Callaway
• Carlos Tadeu Panato Junior
• Cody Soyland
• Colleen Murphy
• Hayden B
• Jussi Kukkonen
• Marco Franssen
• Nianyu Shen
• Slavek Kabrda
• Søren Juul
• Warren Hodgkinson
• Zach Steindler

v2.4.1

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v2.4.1 largely contains bug fixes and updates dependencies.

Features

• Added fuzzing coverage to multiple packages

Bug Fixes

• Fix bug in attest-blob when using a timestamp authority with new bundles (#​3877)
• fix: documentation link for installation guide (#​3884)

Contributors

• AdamKorcz
• Bob Callaway
• Carlos Tadeu Panato Junior
• Hayden B
• Hemil K
• Sota Sugiura
• Zach Steindler

v2.4.0

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v2.4.0 begins the modernization of the Cosign client, which includes:

• Support for the newer Sigstore specification-compliant bundle format
• Support for providing trust roots (e.g. Fulcio certificates, Rekor keys)
  through a trust root file, instead of many different flags
• Conformance test suite integration to verify signing and verification behavior

In future updates, we'll include:

• General support for the trust root file, instead of only when using the bundle
  format during verification
• Simplification of trust root flags and deprecation of the
  Cosign-specific bundle format
• Bundle support with container signing

We have also moved nightly Cosign container builds to GHCR instead of GCR.

Features

• Add new bundle support to verify-blob and verify-blob-attestation (#​3796)
• Adding protobuf bundle support to sign-blob and attest-blob (#​3752)
• Bump sigstore/sigstore to support email_verified as string or boolean (#​3819)
• Conformance testing for cosign (#​3806)
• move incremental builds per commit to GHCR instead of GCR (#​3808)
• Add support for recording creation timestamp for cosign attest (#​3797)
• Include SCT verification failure details in error message (#​3799)

Contributors

• Bob Callaway
• Hayden B
• Slavek Kabrda
• Zach Steindler
• Zsolt Horvath

v2.3.0

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Features

• Add PayloadProvider interface to decouple AttestationToPayloadJSON from oci.Signature interface (#​3693)
• add registry options to cosign save (#​3645)
• Add debug providers command. (#​3728)
• Make config layers in ociremote mountable (#​3741)
• upgrade to go1.22 (#​3739)
• adds tsa cert chain check for env var or tuf targets. (#​3600)
• add --ca-roots and --ca-intermediates flags to 'cosign verify' (#​3464)
• add handling of keyless verification for all verify commands (#​3761)

Bug Fixes

• fix: close attestationFile (#​3679)
• Set bundleVerified to true after Rekor verification (Resolves #​3740) (#​3745)

Documentation

• Document ImportKeyPair and LoadPrivateKey functions in pkg/cosign (#​3776)

Testing

• Refactor KMS E2E tests (#​3684)
• Remove sign_blob_test.sh test (#​3707)
• Remove KMS E2E test script (#​3702)
• Refactor insecure registry E2E tests (#​3701)

Contributors

• Billy Lynch
• bminahan73
• Bob Callaway
• Carlos Tadeu Panato Junior
• Cody Soyland
• Colleen Murphy
• Dmitry Savintsev
• guangwu
• Hayden B
• Hector Fernandez
• ian hundere
• Jason Power
• Jon Johnson
• Max Lambrecht
• Meeki1l

v2.2.4

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Bug Fixes

• Fixes for GHSA-88jx-383q-w4qc and GHSA-95pr-fxf5-86gv (#​3661)
• ErrNoSignaturesFound should be used when there is no signature attached to an image. (#​3526)
• fix semgrep issues for dgryski.semgrep-go ruleset (#​3541)
• Honor creation timestamp for signatures again (#​3549)

Features

• Adds Support for Fulcio Client Credentials Flow, and Argument to Set Flow Explicitly (#​3578)

Documentation

• add oci bundle spec (#​3622)
• Correct help text of triangulate cmd (#​3551)
• Correct help text of verify-attestation policy argument (#​3527)
• feat: add OVHcloud MPR registry tested with cosign (#​3639)

Testing

• Refactor e2e-tests.yml workflow (#​3627)
• Clean up and clarify e2e scripts (#​3628)
• Don't ignore transparency log in tests if possible (#​3528)
• Make E2E tests hermetic (#​3499)
• add e2e test for pkcs11 token signing (#​3495)

v2.2.3

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Bug Fixes

• Fix race condition on verification with multiple signatures attached to image (#​3486)
• fix(clean): Fix clean cmd for private registries (#​3446)
• Fixed BYO PKI verification (#​3427)

Features

• Allow for option in cosign attest and attest-blob to upload attestation as supported in Rekor (#​3466)
• Add support for OpenVEX predicate type (#​3405)

Documentation

• Resolves #​3088: version sub-command expected behaviour documentation and testing (#​3447)
• add examples for cosign attach signature cmd (#​3468)

Misc

• Remove CertSubject function (#​3467)
• Use local rekor and fulcio instances in e2e tests (#​3478)

Contributors

• aalsabag
• Bob Callaway
• Carlos Tadeu Panato Junior
• Colleen Murphy
• Hayden B
• Mukuls77
• Omri Bornstein
• Puerco
• vivek kumar sahu

v2.2.2

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v2.2.2 adds a new container with a shell, gcr.io/projectsigstore/cosign:vx.y.z-dev, in addition to the existing
container gcr.io/projectsigstore/cosign:vx.y.z without a shell.

For private deployments, we have also added an alias for --insecure-skip-log, --private-infrastructure.

Bug Fixes

• chore(deps): bump github.com/sigstore/sigstore from 1.7.5 to 1.7.6 (#​3411) which fixes a bug with using Azure KMS
• Don't require CT log keys if using a key/sk (#​3415)
• Fix copy without any flag set (#​3409)
• Update cosign generate cmd to not include newline (#​3393)
• Fix idempotency error with signing (#​3371)

Features

• Add --yes flag cosign import-key-pair to skip the overwrite confirmation. (#​3383)
• Use the timeout flag value in verify* commands. (#​3391)
• add --private-infrastructure flag (#​3369)

Container Updates

• Bump builder image to use go1.21.4 and add new cosign image tags with shell (#​3373)

Documentation

• Update SBOM_SPEC.md (#​3358)

Contributors

• Carlos Tadeu Panato Junior
• Dylan Richardson
• Hayden B
• Lily Sturmann
• Nikos Fotiou
• Yonghe Zhao

v2.2.1

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Note: This release comes with a fix for CVE-2023-46737 described in this Github Security Advisory. Please upgrade to this release ASAP

Enhancements

• feat: Support basic auth and bearer auth login to registry (#​3310)
• add support for ignoring certificates with pkcs11 (#​3334)
• Support ReplaceOp in Signatures (#​3315)
• feat: added ability to get image digest back via triangulate (#​3255)
• feat: add --only flag in cosign copy to copy sign, att & sbom (#​3247)
• feat: add support attaching a Rekor bundle to a container (#​3246)
• feat: add support outputting rekor response on signing (#​3248)
• feat: improve dockerfile verify subcommand (#​3264)
• Add guard flag for experimental OCI 1.1 verify. (#​3272)
• Deprecate SBOM attachments (#​3256)
• feat: dedent line in cosign copy doc (#​3244)
• feat: add platform flag to cosign copy command (#​3234)
• Add SLSA 1.0 attestation support to cosign. Closes #​2860 (#​3219)
• attest: pass OCI remote opts to att resolver. (#​3225)

Bug Fixes

• Merge pull request from GHSA-vfp6-jrw2-99g9
• fix: allow cosign download sbom when image is absent (#​3245)
• ci: add a OCI registry test for referrers support (#​3253)
• Fix ReplaceSignatures (#​3292)
• Stop using deprecated in_toto.ProvenanceStatement (#​3243)
• Fixes #​3236, disable SCT checking for a cosign verification when usin… (#​3237)
• fix: update error in SignedEntity to be more descriptive (#​3233)
• Fail timestamp verification if no root is provided (#​3224)

Documentation

• Add some docs about verifying in an air-gapped environment (#​3321)
• Update CONTRIBUTING.md (#​3268)
• docs: improves the Contribution guidelines (#​3257)
• Remove security policy (#​3230)

Others

• Set go to min 1.21 and update dependencies (#​3327)
• Update contact for code of conduct (#​3266)
• Update .ko.yaml (#​3240)

Contributors

• AdamKorcz
• Andres Galante
• Appu
• Billy Lynch
• Bob Callaway
• Caleb Woodbine
• Carlos Tadeu Panato Junior
• Dylan Richardson
• Gareth Healy
• Hayden B
• John Kjell
• Jon Johnson
• jonvnadelberg
• Luiz Carvalho
• Priya Wadhwa
• Ramkumar Chinchani
• Tosone
• Ville Aikas
• Vishal Choudhary
• ziel

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