Provided by: monkeysphere_0.35-2_all
pem2openpgp -- translate PEM-encoded RSA keys to OpenPGP certificates
pem2openpgp $USERID < mykey.pem | gpg --import
PEM2OPENPGP_EXPIRATION=$((86400 * $DAYS))
pem2openpgp is a low-level utility for transforming raw, PEM-encoded RSA
secret keys into OpenPGP-formatted certificates. The generated
certificates include the secret key material, so they should be handled
It works as an element within a pipeline: feed it the raw key on stdin,
supply the desired User ID as a command line argument. Note that you may
need to quote the string to ensure that it is entirely in a single
Other choices about how to generate the new OpenPGP certificate are
governed by environment variables.
The following environment variables influence the behavior of
PEM2OPENPGP_TIMESTAMP controls the timestamp (measured in seconds since the
UNIX epoch) indicated as the creation time (a.k.a "not valid before") of
the generated certificate (self-signature) and the key itself. By
default, pem2openpgp uses the current time.
PEM2OPENPGP_KEY_TIMESTAMP controls the timestamp (measured in seconds since
the UNIX epoch) indicated as the creation time of just the key itself
(not the self-signature). By default, pem2openpgp uses the value from
PEM2OPENPGP_USAGE_FLAGS should contain a comma-separated list of valid
OpenPGP usage flags (see section 184.108.40.206 of RFC 4880 for what these
mean). The available choices are: certify, sign, encrypt_comms,
encrypt_storage, encrypt (this means both encrypt_comms and
encrypt_storage), authenticate, split, shared. By default, pem2openpgp
only sets the certify flag.
PEM2OPENPGP_EXPIRATION sets an expiration (measured in seconds after the
creation time of the key) in each self-signature packet. By default, no
expiration subpacket is included.
PEM2OPENPGP_NEWKEY indicates that pem2openpgp should ignore stdin, and
instead generate a new key internally and build the certificate based on
this new key. Set this variable to the number of bits for the new key
(e.g. 2048). By default (when this is unset), pem2openpgp will read the
key from stdin.
pem2openpgp and this man page were written by Daniel Kahn Gillmor
Only handles RSA keys at the moment. It might be nice to handle DSA keys
Currently only creates certificates with a single User ID. Should be
able to create certificates with multiple User IDs.
Currently only accepts unencrypted RSA keys. It should be able to deal
with passphrase-locked key material.
Currently outputs OpenPGP certificates with cleartext secret key
material. It would be good to be able to lock the output with a
If you find other bugs, please report them at
openpgp2ssh(1,) monkeysphere(1), monkeysphere(7), ssh(1),