AWS Signer
7.1#3 in code signing softwareFree planFree planWebAPILinuxmacOS
VisitAWS Signer vs Cosign
What both publish
| Fact | AWS Signer | Cosign |
|---|---|---|
| Purpose | AWS Signer is a fully managed code-signing service that helps verify code integrity and publisher trust. | Cosign signs and verifies OCI containers and other software artifacts. |
| Security model | AWS describes Signer security under a shared-responsibility model in which AWS secures cloud infrastructure and customers secure their configurations and data. | For keyless signing, Cosign uses ephemeral keys held in memory, short-lived Fulcio certificates, and Rekor transparency log entries. |
AWS Signer plans
- AWS SignerFree
- AWS Signer usage with supported AWS servicesFree
Cosign plans
- CosignFree
Pick AWS Signer if…
It suits organizations signing Lambda packages, supported IoT code, or container images that need publisher and integrity verification. AWS describes Lambda signing as a way to define trusted publishers and let authorized developers create certified code packages.
Pick Cosign if…
Cosign suits open-source package managers and teams that need to sign or verify artifacts in registry and CI/CD workflows. It is less suited to developers seeking a stable API for direct application integration.