3 # Monkeysphere host gen-key subcommand
5 # The monkeysphere scripts are written by:
6 # Jameson Rollins <jrollins@fifthhorseman.net>
7 # Jamie McClelland <jm@mayfirst.org>
8 # Daniel Kahn Gillmor <dkg@fifthhorseman.net>
10 # They are Copyright 2008, and are all released under the GPL, version 3
14 local keyLength="2048"
18 local hostName=$(hostname -f)
23 # check for presense of secret key
24 # FIXME: is this the proper test to be doing here?
25 fingerprint_server_key >/dev/null \
26 && failure "An OpenPGP host key already exists."
44 if [ "$(echo "$1" | cut -c 1)" = '-' ] ; then
45 failure "Unknown option '$1'.
46 Type '$PGRM help' for usage."
55 userID="ssh://${hostName}"
57 # prompt about key expiration if not specified
58 keyExpire=$(get_gpg_expiration "$keyExpire")
63 Key-Length: $keyLength
66 Expire-Date: $keyExpire"
68 # add the revoker field if specified
69 # FIXME: the "1:" below assumes that $REVOKER's key is an RSA key.
70 # FIXME: key is marked "sensitive"? is this appropriate?
71 if [ "$revoker" ] ; then
74 Revoker: 1:${revoker} sensitive"
77 echo "The following key parameters will be used for the host private key:"
80 read -p "Generate key? (Y/n) " OK; OK=${OK:=Y}
81 if [ ${OK/y/Y} != 'Y' ] ; then
86 # must include blank line!
93 log verbose "generating host key..."
94 echo "$keyParameters" | gpg_host --batch --gen-key
96 # find the key fingerprint of the newly generated key
97 fingerprint=$(fingerprint_server_key)
99 # export host ownertrust to authentication keyring
100 log verbose "setting ultimate owner trust for host key..."
101 echo "${fingerprint}:6:" | gpg_authentication "--import-ownertrust"
103 # translate the private key to ssh format, and export to a file
105 # NOTE: assumes that the primary key is the proper key to use
107 gpg_host --export-secret-key "$fingerprint" | \
108 openpgp2ssh "$fingerprint" > "${SYSDATADIR}/ssh_host_rsa_key")
109 log info "SSH host private key output to file: ${SYSDATADIR}/ssh_host_rsa_key"
110 ssh-keygen -y -f "${SYSDATADIR}/ssh_host_rsa_key" > "${SYSDATADIR}/ssh_host_rsa_key.pub"
111 log info "SSH host public key output to file: ${SYSDATADIR}/ssh_host_rsa_key.pub"
112 gpg_authentication "--export-options export-minimal --armor --export 0x${fingerprint}\!" > "${SYSDATADIR}/ssh_host_rsa_key.pub.gpg"
113 log info "SSH host public key in OpenPGP form: ${SYSDATADIR}/ssh_host_rsa_key.pub.gpg"
115 # show info about new key