Sigstore vs Wisec
Sigstore
sigstore.devWisec
wisec.ioSide by side
| Figure | Sigstore | Wisec |
|---|---|---|
| Price from | Free | €82.50/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 4 |
| Spec score · Software Supply Chain Security Software | 8.4 (#6) | 8.0 (#11) |
| CI integrations | Sigstore provides GitHub Actions for generating signatures and installing Cosign, and documents GitLab CI installation. | Dedicated CI/CD support is listed for GitLab CI, GitHub Actions, Jenkins, and Azure DevOps; CircleCI and Travis CI are described as coming soon. |
| Purpose | Sigstore is an open source project for improving software supply chain security. | Wisec collects, signs, and preserves software build evidence such as provenance, SBOM, SLSA, and VEX for Cyber Resilience Act readiness. |
| Self-hosting | Sigstore provides scaffolding for running a full stack in Kubernetes, including KinD, and offers Google Cloud Terraform modules. | Self-hosting is available to Enterprise customers, with on-premise or private cloud deployment listed. |
| Support | Community support is provided through Slack and GitHub issues, with repository CODEOWNERS identifying project maintainers. | Free includes community support, Business lists email support with a 48-hour response, Pro lists priority support with a 24-hour response, and Enterprise lists dedicated 24/7 priority support. |
Plans
In their own words
Sigstore
Sigstore is a free, open source project for signing and verifying software artifacts to improve supply chain security. It supports release files, container images, binaries, software bills of materials, and more. Signatures use temporary keys, so developers do not have to manage signing keys; events are recorded in a tamper-resistant public log for audit. Its components include Cosign, Fulcio, Rekor, OpenID Connect, and Policy Controller. Cosign signs and verifies artifacts and stores signatures in an OCI registry. Fulcio issues temporary certificates to authorized identities, while Rekor keeps signed metadata in a searchable ledger. OpenID Connect authenticates users through providers such as GitHub and Google. The trust root uses The Update Framework and is maintained by five keyholders from different companies and academic institutions. Sigstore provides GitHub Actions, documents GitLab CI installation, and offers official clients for Go, Java, JavaScript, Python, Ruby, and Rust. It supports API, Linux, macOS, Windows, and self-hosted environments. One integration caveat is that Cosign has no API stability guarantees, does not follow semantic versioning, and is not recommended for application integration because of its dependencies.
Wisec
Wisec collects, signs, and preserves software build evidence for teams preparing for Cyber Resilience Act readiness. It links builds in a signed chain using Ed25519, SLSA provenance, and public Sigstore/Rekor timestamping. It generates signed CycloneDX SBOMs and VEX documents describing the exploitability status of detected CVEs. Eleven anomaly rules run on each build, covering project history and known-bad patterns. Teams can set CI gate policies to block or warn on secrets, vulnerable dependencies, unapproved contributors, risk thresholds, and CVE severity. Wisec supports GitLab CI, GitHub Actions, Jenkins, and Azure DevOps, and imports SARIF v2.1.0 findings from tools such as CodeQL, Semgrep, Snyk, and Trivy. It maps evidence to NIS2, SOC2, ISO 27001, and CRA and exports PDF reports; CRA and ISO 27001 mapping is not a conformity claim. The maker says data is encrypted in transit and at rest, hosted in France, and kept within the EU. Plans include Free at free, Business at €990 a year, and Pro at €2,990 a year.