Sign signs an image using a signer and options provided in options.

SignCosign signs an image(`rawRef`) using a cosign private key (`keyRef`).

SignNotation signs an image(`rawRef`) using a notation key name (`keyNameRef`).

Verify verifies an image using a verifier and options provided in options.

VerifyCosign verifies an image(`rawRef`) with a cosign public key(`keyRef`) `hostsDirs` are used to resolve image `rawRef` Either --cosign-certificate-identity or --cosign-certificate-identity-regexp and either --cosign-certificate-oidc-issuer or --cosign-certificate-oidc-issuer-regexp must be set for keyless flows.

VerifyNotation verifies an image(`rawRef`) with the pre-configured notation trust policy `hostsDirs` are used to resolve image `rawRef`.