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COSIGN(1) User Commands COSIGN(1)

NAME

cosign - Container Signing/Verification/Storage tool

DESCRIPTION

A tool for Container Signing, Verification and Storage in an OCI registry.

Usage: cosign [command]

Available Commands: attest Attest the supplied container image. attest-blob Attest the supplied blob. bundle Interact with a Sigstore protobuf bundle clean Remove all signatures from an image. completion Generate completion script download Provides utilities for downloading artifacts and attached artifacts in a registry env Prints Cosign environment variables generate-key-pair Generates a key-pair. help Help about any command import-key-pair Imports a PEM-encoded RSA or EC private key. initialize Initializes SigStore root to retrieve trusted certificate and key targets for verification. load Load a signed image on disk to a remote registry login Log in to a registry public-key Gets a public key from the key-pair. save Save the container image and associated signatures to disk at the specified directory. sign Sign the supplied container image. sign-blob Sign the supplied blob, outputting the base64-encoded signature to stdout. signing-config Interact with a Sigstore protobuf signing config tree Display supply chain security related artifacts for an image such as signatures, SBOMs and attestations trusted-root Interact with a Sigstore protobuf trusted root verify Verify a signature on the supplied container image verify-attestation Verify an attestation on the supplied container image verify-blob Verify a signature on the supplied blob verify-blob-attestation Verify an attestation on the supplied blob version Prints the version

Flags:

-h, --help=false:

help for cosign

--output-file='':

log output to a file

-t, --timeout=3m0s:

timeout for commands

-d, --verbose=false:

log debug output

Additional help topics: cosign piv-tool This cosign was not built with piv-tool support! cosign pkcs11-tool This cosign was not built with pkcs11-tool support!

Use "cosign [command] --help" for more information about a command.

July 2026 cosign 3.1.1-1