GZSIG(1)

NAME
gzsig - gzip signing utility

SYNOPSIS
gzsig sign [-q] [-f secret_file] privkey [file ...]
gzsig verify [-q] [-f secret_file] pubkey [file ...]

DESCRIPTION
gzsig embeds or verifies RSA PKCS #1 v2.0 or DSA SHA1 signatures in gzip(1) compressed files using SSH identity keys or X.509 certificates.

The file operands are processed in command-line order. If file is a single dash (‘-’) or absent, gzsig reads from the standard input.

The options are as follows:

-f secret_file
    Indicates that the passphrase for the key should be read from secret_file instead of being supplied manually.

-q  Enable quiet mode.

sign
    Sign the input using the private key in privkey.

verify
    Verify the signature using the public key in pubkey.

EXIT STATUS

EXAMPLES
Sign file1 and file2 with the SSH2 identity key in ~/.ssh/id_rsa:

    $ gzsig sign ~/.ssh/id_rsa file1 file2

Sign file1 with the SSH2 identity key, saving the signed file in file2:

    $ gzsig sign ~/.ssh/id_rsa file1 file2

Verify the signature on file1 using the SSL certificate in /etc/ssl/server.crt:

    $ gzsig verify /etc/ssl/server.crt file1

SEE ALSO
gzip(1), ssh-keygen(1), ssl(8)

AUTHORS
Dug Song <dugsong@arbor.net>. SSH2 support by Marius Eriksen <marius@openbsd.org>.