diff options
Diffstat (limited to 'src/share')
| -rw-r--r-- | src/share/mh/revoke_key | 66 |
1 files changed, 59 insertions, 7 deletions
diff --git a/src/share/mh/revoke_key b/src/share/mh/revoke_key index 380236b..271432b 100644 --- a/src/share/mh/revoke_key +++ b/src/share/mh/revoke_key @@ -18,6 +18,28 @@ revoke_key() { # Coming in here, we expect $HOST_FINGERPRINT to be set, and we # believe that there is in fact a key. + if [ "$PROMPT" = "false" ] ; then + publish=N + else + cat <<EOF >&2 +This will generate a revocation certificate for your host key +(fingerprint: $HOST_FINGERPRINT) and +dump the certificate to standard output. + +It can also directly publish the new revocation certificate +to the public keyservers via $KEYSERVER if you want it to. + +Publishing this certificate will IMMEDIATELY and PERMANENTLY revoke +your host key! + +EOF + read -p "Publish the certificate after generation? (y/n/Q) " publish + + if ! [ "${publish/y/Y}" = 'Y' -o "${publish/n/N}" = 'N' ] ; then + failure "aborting at user request" + fi + fi + # our current implementation is very simple: we just want to # generate the revocation certificate on stdout. This provides # for the two most likely (but hopefully not common) scenarios: @@ -28,18 +50,48 @@ revoke_key() { # transcribe from the terminal. # Alternately, an admin might want to publish the revocation - # certificate immediately. here's a quick way to do this: + # certificate immediately, which we can help them do as well. + if [ "$PROMPT" = 'false' ] ; then + local revoke_commands="y +1 +Monkeysphere host key revocation (no prompting) $(date '+%F_%T') - # tmp=$(mktemp -d) - # export GNUPGHOME="$tmp" - # gpg --import < /var/lib/monkeysphere/ssh_host_rsa_key.pub.gpg - # monkeysphere-host revoke-key | gpg --import - # gpg --keyserver pool.sks-keyservers.net --send $(hostname -f) +y +" + revcert=$(GNUPGHOME="$GNUPGHOME_HOST" gpg_host --command-fd 0 --armor --gen-revoke "0x${HOST_FINGERPRINT}!" <<<"$revoke_commands" ) \ + || failure "Failed to generate revocation certificate!" + + else # note: we're not using the gpg_host function because we actually # want to use gpg's UI in this case, so we want to omit --no-tty + revcert=$(GNUPGHOME="$GNUPGHOME_HOST" gpg --no-greeting --quiet --armor --gen-revoke "0x${HOST_FINGERPRINT}!") \ + || failure "Failed to generate revocation certificate!" + fi + + # if you run gpg --gen-revoke but cancel it or quit in the middle, + # it returns success, but emits no revocation certificate: + if ! [ "$revcert" ] ; then + failure "Revocation canceled." + fi + + ## ok, now we have the revocation certificate. Print it, and + ## offer to publish if originally requested: + printf "%s\n" "$revcert" - GNUPGHOME="$GNUPGHOME_HOST" gpg --no-greeting --quiet --armor --gen-revoke "0x${HOST_FINGERPRINT}!" + if [ "${publish/y/Y}" = 'Y' ] ; then + printf "\n" >&2 + read -p "Really publish this cert to $KEYSERVER ? (Y/n) " really + if [ "${really/n/N}" = 'N' ] ; then + printf "Not publishing.\n" >&2 + else + local newhome=$(mkmstempdir) + GNUPGHOME="$newhome" gpg --no-tty --quiet --import < "$HOST_KEY_FILE" + GNUPGHOME="$newhome" gpg --no-tty --quiet --import <<< "$revcert" + GNUPGHOME="$newhome" gpg --keyserver "$KEYSERVER" --send "0x${HOST_FINGERPRINT}!" + rm -rf "$newhome" + fi + fi } |