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Cybersecurity · head to head

Cosign vs Euna Solutions

Cosign logo

Cosign

Cybersecurity

Signs and verifies container images and artifacts, with or without managing keys

From
Free
Free plan
Yes
Full reviewWebsite
Euna Solutions logo

Euna Solutions

Government

Budgeting, procurement, grants and payments software for the public sector, formerly GTY Technology

From
On request
Free plan
No
Full reviewWebsite

The short version

  • Only Cosign has a free tier, so it costs nothing to try first.
  • Each has a real cost: Cosign keyless signing inherits every weakness of the identity provider behind it. Sigstore’s own threat model states that if an identity provider is compromised, Sigstore will issue certificates to those identities, so a compromised account produces perfectly valid signatures.; Euna Solutions the suite is assembled from six or more separate acquisitions and integration between modules is still being completed, so a buyer purchasing two modules should ask precisely what data passes between them today rather than on the roadmap.
  • They diverge on capability: Cosign covers Keyless signing, Euna Solutions covers Euna Budget.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Cosign and Euna Solutions actually diverge.

Attributes where Cosign and Euna Solutions differ
AttributeCosignEuna Solutions
Starting priceFreeOn request
Pricing modelOpen source, no licence feequote
Free tierYesNo
PlatformsmacOS, Linux, Windows, DockerWeb
CategoryCybersecurityGovernment

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Cosign

  • Keyless signing
  • Key and KMS signing
  • Registry-native storage
  • In-toto attestations
  • Offline verification
  • Trusted root and signing config

Only in Euna Solutions

  • Euna Budget
  • Euna Procurement
  • Euna Grants
  • Euna Payments
  • Euna Special Education
  • Transparency portals
  • Workflow automation

What people use each for

The jobs each tool is most often brought in to do.

Cosign

  • Signing container images in a build pipeline without managing long-lived private keysnot Euna Solutions
  • Attaching a signed bill of materials to a release so consumers can verify its provenancenot Euna Solutions
  • Meeting a customer or regulatory requirement for signed artifactsnot Euna Solutions
  • Verifying third-party images before they enter an internal registrynot Euna Solutions

Euna Solutions

  • A county administering federal grant funds that must produce subrecipient monitoring and reporting an auditor will acceptnot Cosign
  • A city whose budget process runs on a chain of spreadsheets that nobody can reconcile before the council meetingnot Cosign
  • A school district needing sealed electronic bidding with scored evaluation and an audit trailnot Cosign
  • A jurisdiction wanting a public transparency portal for budget and spending without building onenot Cosign

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Cosign

  • Keyless signing inherits every weakness of the identity provider behind it. Sigstore’s own threat model states that if an identity provider is compromised, Sigstore will issue certificates to those identities, so a compromised account produces perfectly valid signatures.
  • A signature proves who signed, never whether they should have. The documentation is explicit that Sigstore cannot determine authorisation, so every consumer must write and maintain their own identity and issuer policy or verification means nothing.
  • Nothing is enforced without an admission controller. Signing changes what you can prove, not what runs, and the official policy controller has a small maintainer base for a component sitting in a cluster admission path.
  • Upgrades break pipelines. Version 3 changed defaults, version 4 is announced as removing legacy functionality and roughly half the command line flags, and two official client libraries still lacked support for the new log format as of mid 2026.
  • Signatures do not expire. An artifact signed before a maintainer account was compromised and one signed after are indistinguishable unless somebody is actively monitoring the transparency log, and almost nobody is.

Euna Solutions

  • The suite is assembled from six or more separate acquisitions and integration between modules is still being completed, so a buyer purchasing two modules should ask precisely what data passes between them today rather than on the roadmap.
  • No pricing is published at any level and terms are typically multi-year, so budgeting the true cost requires obtaining peer jurisdiction contracts, which is possible but slow.
  • Individual modules face specialists with deeper functionality, so a jurisdiction buying only procurement or only budgeting may get less capability than from a single-product vendor at similar cost.
  • Ownership has changed twice in six years, from a SPAC to private equity, and further change is plausible, which creates roadmap uncertainty over the length of a typical multi-year public sector contract.
  • Grant management depth is oriented to United States federal and state programmes, which makes the product close to useless to public bodies outside that funding system.

Pricing, plan by plan

Cosign

Free
  • CosignFree
    • Apache-2.0
    • Public Sigstore infrastructure free to use
    • No usage limits published

Euna Solutions

On request
  • Euna Solutions$undefined/year
    • Modules licensed individually: Budget, Procurement, Grants, Payments
    • Priced by jurisdiction size, modules and users
    • Annual subscription with multi-year terms common

Which should you pick?

Choose Cosign if

  • You need keyless signing.
  • You want to start without paying.
  • You work on macOS, Linux, Windows, Docker.
  • You also want key and kms signing.
Cosign review

Choose Euna Solutions if

  • You need euna budget.
  • You also want euna procurement.
Euna Solutions review

Questions people ask

Is Cosign or Euna Solutions better?
Neither clearly leads. Cosign starts at Free and Euna Solutions at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cosign or Euna Solutions?
Cosign has a free tier; the other does not. Paid plans start at Free for Cosign and On request for Euna Solutions.
Does Cosign or Euna Solutions run on more platforms?
Cosign runs on macOS, Linux, Windows, Docker. Euna Solutions runs on Web.
Can I use Cosign for free?
Yes. Cosign has a free tier, so you can try it without paying. Euna Solutions starts at On request.
What is Cosign best used for?
Cosign is most often used for signing container images in a build pipeline without managing long-lived private keys, attaching a signed bill of materials to a release so consumers can verify its provenance, meeting a customer or regulatory requirement for signed artifacts, verifying third-party images before they enter an internal registry. Of those, signing container images in a build pipeline without managing long-lived private keys and attaching a signed bill of materials to a release so consumers can verify its provenance are not what Euna Solutions is typically brought in for.
What can Cosign do that Euna Solutions cannot?
Cosign covers Keyless signing, Key and KMS signing, Registry-native storage, In-toto attestations. Euna Solutions covers Euna Budget, Euna Procurement, Euna Grants, Euna Payments.

Answered from the vendors’ own pages

Cosign: Does Cosign tell me if an image is vulnerable?

No. It has no vulnerability knowledge whatsoever. It can carry an SBOM as a signed attestation but never reads it. Pair it with a scanner.

Euna Solutions: Is this the same company as GTY Technology?

Yes. GTY Technology rebranded to Euna Solutions in 2023. The individual products came from acquisitions including Bonfire, Questica, eCivis and CityBase.

Cosign: Is signing alone enough?

No. Verification is a command somebody runs. Without an admission controller enforcing it, an unsigned image still runs.

Euna Solutions: Which product was Bonfire?

Bonfire is now Euna Procurement. Questica became Euna Budget and eCivis became Euna Grants. Ask which underlying codebase a demo is showing.

Cosign: What does a bare cosign verify actually prove?

Very little. Without a pinned certificate identity and OIDC issuer, it accepts a valid signature from any identity at all.

Euna Solutions: What does it cost?

Not published. Modules are quoted individually by jurisdiction size and users, usually on multi-year terms and often available through cooperative purchasing contracts.

Cosign: What is the risk of keyless signing?

Your OIDC provider becomes the root of trust. Compromise of that account yields genuine, verifiable signatures, so account security is the control that matters.

Euna Solutions: Do the modules actually share data?

Partially, and it varies by pair. Get the specific integration between the modules you are buying demonstrated on real data before signing.

Cosign: Should we expect breaking changes?

Yes. Version 4 is announced to remove roughly half the flags, and a post-quantum migration is named as a further breaking change after that.

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