2 # This should be sourced by bash (though we welcome changes to make it POSIX sh compliant)
4 # Monkeysphere host gen-key subcommand
6 # The monkeysphere scripts are written by:
7 # Jameson Rollins <jrollins@finestructure.net>
8 # Jamie McClelland <jm@mayfirst.org>
9 # Daniel Kahn Gillmor <dkg@fifthhorseman.net>
11 # They are Copyright 2008-2009, and are all released under the GPL,
17 local keyLength="2048"
20 local hostName=$(hostname -f)
25 # check for presense of secret key
26 # FIXME: is this the proper test to be doing here?
27 fingerprint_server_key >/dev/null \
28 && failure "An OpenPGP host key already exists."
42 if [ "$(echo "$1" | cut -c 1)" = '-' ] ; then
43 failure "Unknown option '$1'.
44 Type '$PGRM help' for usage."
53 userID="ssh://${hostName}"
55 # prompt about key expiration if not specified
56 keyExpire=$(get_gpg_expiration "$keyExpire")
61 Key-Length: $keyLength
64 Expire-Date: $keyExpire"
66 echo "The following key parameters will be used for the host private key:"
69 read -p "Generate key? (Y/n) " OK; OK=${OK:=Y}
70 if [ ${OK/y/Y} != 'Y' ] ; then
75 # must include blank line!
82 log verbose "generating host key..."
83 echo "$keyParameters" | gpg_host --batch --gen-key
85 # find the key fingerprint of the newly generated key
86 fingerprint=$(fingerprint_server_key)
88 # export host ownertrust to authentication keyring
89 log verbose "setting ultimate owner trust for host key..."
90 echo "${fingerprint}:6:" | gpg_authentication "--import-ownertrust"
92 # translate the private key to ssh format, and export to a file
94 # NOTE: assumes that the primary key is the proper key to use
96 gpg_host --export-secret-key "$fingerprint" | \
97 openpgp2ssh "$fingerprint" > "${SYSDATADIR}/ssh_host_rsa_key")
98 log info "SSH host private key output to file: ${SYSDATADIR}/ssh_host_rsa_key"
99 ssh-keygen -y -f "${SYSDATADIR}/ssh_host_rsa_key" > "${SYSDATADIR}/ssh_host_rsa_key.pub"
100 log info "SSH host public key output to file: ${SYSDATADIR}/ssh_host_rsa_key.pub"
101 gpg_authentication "--export-options export-minimal --armor --export 0x${fingerprint}\!" > "${SYSDATADIR}/ssh_host_rsa_key.pub.gpg"
102 log info "SSH host public key in OpenPGP form: ${SYSDATADIR}/ssh_host_rsa_key.pub.gpg"
104 # show info about new key