This is the command openpgp2spki that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
openpgp2ssh — translate OpenPGP keys to SSH keys
SYNOPSIS
openpgp2ssh < mykey.gpg
gpg --export $KEYID | openpgp2ssh $KEYID
gpg --export $KEYID | openpgp2pem $KEYID
gpg --export $KEYID | openpgp2spki $KEYID
gpg --export-secret-key $KEYID | openpgp2ssh $KEYID
DESCRIPTION
openpgp2ssh takes an OpenPGP-formatted primary key and associated subkeys on standard input,
and spits out the requested equivalent SSH-style (or PEM-encoded) key on standard output.
If the data on standard input contains no subkeys, you can invoke openpgp2ssh without
arguments. If the data on standard input contains multiple keys (e.g. a primary key and
associated subkeys), you must specify a specific OpenPGP key identifier as the first
argument to indicate which key to export. The key ID is normally the 40 hex digit OpenPGP
fingerprint of the key or subkey desired, but openpgp2ssh will accept as few as the last 8
digits of the fingerprint as a key ID.
If the input contains an OpenPGP RSA public key, it will be converted to the OpenSSH-style
single-line keystring, prefixed with the key type (`ssh-rsa'). This format is suitable
(with minor alterations) for insertion into known_hosts files and authorized_keys files. If
invoked as `openpgp2pem', a PEM-encoded public key will be emitted instead.
If invoked as `openpgp2spki', a PEM-encoded subjectPublicKeyInfo (as defined in the X.509
standard) will be emitted instead.
If the input contains an OpenPGP RSA secret key, it will be converted to the equivalent PEM-
encoded private key.
openpgp2ssh is part of the monkeysphere(7) framework for providing a PKI for SSH.
CAVEATS
The keys produced by this process are stripped of all identifying information, including
certifications, self-signatures, etc. This is intentional, since ssh attaches no inherent
significance to these features.
openpgp2ssh will produce output for any requested RSA key. This means, among other things,
that it will happily export revoked keys, unverifiable keys, expired keys, etc. Make sure
you do your own key validation before using this tool!
EXAMPLES
gpg --export-secret-key $KEYID | openpgp2ssh $KEYID | ssh-add -c /dev/stdin
This pushes the secret key into the active ssh-agent(1). Tools such as ssh(1) which know
how to talk to the ssh-agent(1) can now rely on the key.
Use openpgp2spki online using onworks.net services