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
16 local keyLength="2048"
19 local hostName=$(hostname -f)
24 # check for presense of secret key
25 # FIXME: is this the proper test to be doing here?
26 fingerprint_server_key >/dev/null \
27 && failure "An OpenPGP host key already exists."
45 if [ "$(echo "$1" | cut -c 1)" = '-' ] ; then
46 failure "Unknown option '$1'.
47 Type '$PGRM help' for usage."
54 userID="ssh://${hostName}"
56 # prompt about key expiration if not specified
57 keyExpire=$(get_gpg_expiration "$keyExpire")
62 Key-Length: $keyLength
65 Expire-Date: $keyExpire"
67 echo "The following key parameters will be used for the host private key:"
70 read -p "Generate key? (Y/n) " OK; OK=${OK:=Y}
71 if [ ${OK/y/Y} != 'Y' ] ; then
76 # must include blank line!
83 log verbose "generating host key..."
84 echo "$keyParameters" | gpg_host --batch --gen-key
86 # find the key fingerprint of the newly generated key
87 fingerprint=$(fingerprint_server_key)
89 # export host ownertrust to authentication keyring
90 log verbose "setting ultimate owner trust for host key..."
91 echo "${fingerprint}:6:" | gpg_authentication "--import-ownertrust"
93 # translate the private key to ssh format, and export to a file
95 # NOTE: assumes that the primary key is the proper key to use
97 gpg_host --export-secret-key "$fingerprint" | \
98 openpgp2ssh "$fingerprint" > "${SYSDATADIR}/ssh_host_rsa_key")
99 log info "SSH host private key output to file: ${SYSDATADIR}/ssh_host_rsa_key"
100 ssh-keygen -y -f "${SYSDATADIR}/ssh_host_rsa_key" > "${SYSDATADIR}/ssh_host_rsa_key.pub"
101 log info "SSH host public key output to file: ${SYSDATADIR}/ssh_host_rsa_key.pub"
102 gpg_authentication "--export-options export-minimal --armor --export 0x${fingerprint}\!" > "${SYSDATADIR}/ssh_host_rsa_key.pub.gpg"
103 log info "SSH host public key in OpenPGP form: ${SYSDATADIR}/ssh_host_rsa_key.pub.gpg"
105 # show info about new key