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singularity-verify - Verify digital signature(s) within an image

NAME  SYNOPSIS  DESCRIPTION  OPTIONS  EXAMPLE  SEE ALSO  HISTORY 

NAME

singularity-verify - Verify digital signature(s) within an image

SYNOPSIS

singularity verify [verify options...]

DESCRIPTION

The verify command allows a user to verify one or more digital signatures
within a SIF image.

Key material can be provided via PEM-encoded file, or via the PGP keyring. To
manage the PGP keyring, see ’singularity help key’.

--cosign mode supports verifying an OCI image within an OCI-SIF file that has
a cosign-compatible signature. A public key must be provided with the --key
flag.

OPTIONS

-a, --all[=false]

verify all objects

--certificate=""

path to the certificate

--certificate-intermediates=""

path to pool of intermediate certificates

--certificate-roots=""

path to pool of root certificates

-c, --cosign[=false]

verify an OCI-SIF with a cosign-compatible sigstore signature

-g, --group-id=0

verify objects with the specified group ID

-h, --help[=false]

help for verify

-j, --json[=false]

output json

--key=""

path to the public key file

--legacy-insecure[=false]

enable verification of (insecure) legacy signatures

-l, --local[=false]

only verify with local key(s) in keyring

--ocsp-verify[=false]

enable online revocation check for certificates

-i, --sif-id=0

verify object with the specified ID

-u, --url=""

specify a URL for a key server

EXAMPLE

Verify with a public key:
$ singularity verify --key public.pem container.sif

Verify with PGP:
$ singularity verify container.sif

Verify an image within an OCI-SIF with a cosign compatible signature:
$ singularity verify --cosign --key cosign.pub container.oci.sif

SEE ALSO

singularity(1)

HISTORY

15-May-2026 Auto generated by spf13/cobra


Updated 2026-06-01 - jenkler.se | uex.se