verify(1)

NAME
verify - Verifies signed messages or detached signatures

SYNOPSIS
verify [-o|--output] [--detached] [-n|--signatures] [--signer-cert] [-h|--help] [FILE]

DESCRIPTION
Verifies signed messages or detached signatures

When verifying signed messages, the message is written to stdout or the file given to --output.

When a detached message is verified, no output is produced. Detached signatures are often used to sign software packages.

Verification is only successful if there is no bad signature, and the number of successfully verified signatures reaches the threshold configured with the "--signatures" parameter. If the verification fails, the program terminates with an exit status indicating failure. In addition to that, the last 25 MiB of the message are withheld, i.e. if the message is smaller than 25 MiB, no output is produced, and if it is larger, then the output will be truncated.

The converse operation is "sq sign".

OPTIONS

-o, --output=FILE
    Writes to FILE or stdout if omitted

--detached=SIG
    Verifies a detached signature

-n, --signatures=N [default: 1]
    Sets the threshold of valid signatures to N. If this threshold is not reached, the message will not be considered verified.

--signer-cert=CERT
    Verifies signatures with CERT

-h, --help
    Print help information

[FILE]
    Reads from FILE or stdin if omitted

EXAMPLES
 Verify a signed message

     sq verify --signer-cert juliet.pgp signed-message.pgp

 Verify a detached message

     sq verify --signer-cert juliet.pgp --detached message.sig message.txt
SEE ALSO: If you are looking for a standalone program to verify detached signatures, consider using sequoia-sqv.

SEE ALSO
For the full documentation see <https://docs.sequoia-pgp.org/sq/>.

sq(1) sq-armor(1) sq-autocrypt(1) sq-certify(1) sq-dearmor(1) sq-decrypt(1) sq-encrypt(1) sq-inspect(1) sq-key(1) sq-keyring(1) sq-keyserver(1) sq-packet(1) sq-revoke(1) sq-sign(1) sq-wkd(1)