* agent/command.c (cmd_pkdecrypt): Fix comparison.
* agent/agent.h (enum kemids): Rename type and strip trailing comma.
* agent/pkdecrypt.c (agent_hybrid_pgp_kem_decrypt): Allow building
with Libgcrypt < 1.11
--
Eventually we should change the libgcrypt requirement in configure.
* agent/command.c (cmd_get_passphrase): Allow use in restricted mode
but ignore the cacheid.
--
The use case is symmetric encryption via the extra-socket. To avoid
that the gpg running on the server has access to the cache we set the
cache id to NULL so that the cache is not used at all.
* agent/agent.h (struct ephemeral_private_key_s): New.
(struct server_control_s): Add ephemeral_mode and ephemeral_keys.
(GENKEY_FLAG_NO_PROTECTION, GENKEY_FLAG_PRESET): New.
* agent/genkey.c (clear_ephemeral_keys): New.
(store_key): Add arg ctrl and implement ephemeral_mode. Change all
callers.
(agent_genkey): Replace args no_protection and preset by a generic new
flags arg.
* agent/findkey.c (wipe_and_fclose): New.
(agent_write_private_key): Add arg ctrl and implement ephemeral_mode.
Change all callers.
(agent_update_private_key): Ditto
(read_key_file): Ditto.
(agent_key_available): Ditto.
* agent/command-ssh.c (card_key_available): Do not update display s/n
in ephemeral mode. This is however enver triggred.
* agent/gpg-agent.c (agent_deinit_default_ctrl): Cleanup ephemeral
keys.
* agent/command.c (cmd_genkey): Use the new flags instead of separate
vars.
(cmd_readkey): Create a shadow key only in non-ephemeral_mode.
(cmd_getinfo): Add sub-command "ephemeral".
(option_handler): Add option "ephemeral".
--
The idea here that a session can be switched in an ephemeral mode
which does not store or read keys from disk but keeps them local to
the session.
GnuPG-bug-id: 6944
* agent/findkey.c (agent_write_private_key): Add arg dispserialno and
update the token.
(agent_write_shadow_key): Add arg dispserialno and adjust all callers.
--
GnuPG-bug-id: 6135
Note that this has been forward ported from 2.2
* agent/command.c (cmd_keytocard): Add new arg for ECDH params.
* scd/app-openpgp.c (ecc_writekey): Use provided ECDH params to
compute the fingerprint.
* g10/call-agent.c (agent_keytocard): Add arg ecdh_param_str.
* g10/keyid.c (ecdh_param_str_from_pk): New.
* g10/card-util.c (card_store_subkey): Pass ECDH params to writekey.
* g10/keygen.c (card_store_key_with_backup): Ditto.
* scd/app-openpgp.c (store_fpr): Add arg update.
(rsa_read_pubkey, ecc_read_pubkey): Add arg meta_update and avoid
writing the fingerprint back to the card if not set.
(read_public_key): Also add arg meta_update.
(get_public_key): Do not pass it as true here...
(do_genkey): ... but here.
(rsa_write_key, ecc_writekey): Force string the fingerprint.
--
The problem showed up because in 2.4 we changed the standard ECDH
parameter some years ago. Now when trying to write an ECDH key
created by 2.2 with 2.4 to an openpgp card, scdaemon computes a wrong
fingerprint and thus gpg was not able to find the key again by
fingerprint.
The patch also avoids updating the stored fingerprint in certain
situations.
This fix is somewhat related to
GnuPG-bug-id: 6378
* agent/command.c (cmd_preset_passphrase): Add option.
* agent/preset-passphrase.c (oRestricted): New.
(opts): Add option --restricted.
(main): Set option.
(preset_passphrase): Use option.
--
We use a different cache for connections from the extra-socket.
However, with gpg-preset-passphrase is only able to preset a
passphrase into the regular cache. Further, a restricted connection
may not use PRESET_PASSPHRASE. To solve this we add an new option to
preset the passphrase into the "restricted" cache. For the
gpg-preset-passphrase tool we also add the option --restricted.
Note that this does not yet work with gpg-preset-passphrase --forget.
* agent/agent.h (opt): Remove enable_extended_key_format.
* agent/gpg-agent.c (enum cmd_and_opt_values): Turn
oDisableExtendedKeyFormat and oEnableExtendedKeyFormat into dummy
options.
* agent/protect.c (do_encryption): Remove arg use_ocb and
corresponding code.
(agent_protect): Ditto. Change all callers.
* agent/findkey.c (agent_write_private_key): Simplify due to the
removal of disable-extended-key-format.
(write_extended_private_key): Fold into agent_write_private_key.
--
This change is related to
GnuPG-bug-id: 6386
but should have no visible effect except for the removal of
option --disable-extended-key-format.
* agent/command.c (cmd_export_key): Add option --mode1003.
(command_has_option): Ditto.
* g10/build-packet.c (do_key): Implement mode 1003.
* g10/parse-packet.c (parse_key): Ditto.
* g10/options.h (EXPORT_MODE1003): New.o
* g10/call-agent.c (agent_export_key): Add arg mode1003.
* g10/export.c (parse_export_options): Add "mode1003"
(secret_key_to_mode1003): New.
(receive_seckey_from_agent): Add arg mode1003.
(do_export_one_keyblock): Pass option down.
--
This option allows to export a secret key in GnuPG's native format.
Thus no re-encryption is required and further the public key parameters
are also authenticated if a protection passphrase has been used.
Note that --import is not yet able to handle this new mode. Although
old version of GnuPG will bail out with "invalid packet" if a mode1003
exported secret key is seen.
* agent/command.c (cmd_keyattr): Reject when disabled extended key
format. Handle the case when key is in non-extended format.
--
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/command.c (do_one_keyinfo): New arg need_Attr.
(cmd_keyinfo): New option --need-attr.
* agent/findkey.c (public_key_from_file): Use nvc_get_boolean.
--
This option makes it easier to list keys suitable only for certain
purposes.
The second patch makes if compliant to the description in
keyformat.txt
* agent/command.c (get_keyinfo_on_cards): Make it static. Don't
return bogus value on error. Return NULL when scdaemon is disabled.
--
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/command.c (cmd_keytocard): Timestamp at "Created:" field is
only used when time is not specified.
--
Fixes-commit: c795be79c1
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/agent.h (PINENTRY_STATUS_PASSWORD_GENERATED): New.
(MAX_GENPIN_TRIES): Remove.
* agent/call-pinentry.c (struct entry_parm_s):
(struct inq_cb_parm_s): Add genpinhash and genpinhas_valid.
(is_generated_pin): New.
(inq_cb): Suppress constraints checking for a generated passphrase.
No more need for several tries to generate the passphrase.
(do_getpin): Store a generated passphrase/pin in the status field.
(agent_askpin): Suppress constraints checking for a generated
passphrase.
(agent_get_passphrase): Ditto.
* agent/command.c (cmd_get_passphrase): Ditto.
--
A generated passphrase has enough entropy so that all kind of extra
checks would only reduce the actual available entropy. We thus detect
if a passphrase has been generated (and not changed) and skip all
passphrase constraints checking.
* agent/gpg-agent.c (oCheckSymPassphrasePattern): New.
(opts): Add --check-sym-passphrase-pattern.
(parse_rereadable_options): Set option.
(main): Return option info.
* tools/gpgconf-comp.c: Add new option.
* agent/agent.h (opt): Add var check_sym_passphrase_pattern.
(struct pin_entry_info_s): Add var constraints_flags.
(CHECK_CONSTRAINTS_NOT_EMPTY): New to replace a hardwired 1.
(CHECK_CONSTRAINTS_NEW_SYMKEY): New.
* agent/genkey.c (check_passphrase_pattern): Rename to ...
(do_check_passphrase_pattern): this to make code reading
easier. Handle the --check-sym-passphrase-pattern option.
(check_passphrase_constraints): Replace arg no_empty by a generic
flags arg. Also handle --check-sym-passphrase-pattern here.
* agent/command.c (cmd_get_passphrase): In --newsymkey mode pass
CHECK_CONSTRAINTS_NEW_SYMKEY flag.
* agent/call-pinentry.c (struct entry_parm_s): Add constraints_flags.
(struct inq_cb_parm_s): New.
(inq_cb): Use new struct for parameter passing. Pass flags to teh
constraints checking.
(do_getpin): Pass constraints flag down.
(agent_askpin): Take constrainst flag from the supplied pinentry
struct.
--
Requirements for a passphrase to protect a private key and for a
passphrase used for symmetric encryption are different. Thus a
the use of a different pattern file will be useful. Note that a
pattern file can be used to replace the other passphrase constraints
options and thus we don't need to duplicate them for symmetric
encryption.
GnuPG-bug-id: 5517
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command.c (cmd_genkey): Use goto instead of return.
* agent/cvt-openpgp.c (convert_from_openpgp_main): Ditto.
* agent/genkey.c (agent_ask_new_passphrase): Fix typo to free correct
pointer
(agent_genkey): Release memory
* agent/gpg-agent.c (check_own_socket): Free sockname
* agent/protect-tool.c (read_key): Free buf.
(agent_askpin): Free passphrase
--
Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Changed original patch to not add a free before a GPG_ERR_BUG.
Signed-off-by: Werner Koch <wk@gnupg.org>
GnuPG-bug-id: 5393
* agent/command.c (cmd_keyinfo): Factor some code out to ...
(get_keyinfo_on_cards): ... new.
(cmd_havekey): Add --list mode.
* g10/gpg.h (struct server_control_s): Add new caching vars.
* g10/gpg.c (gpg_deinit_default_ctrl): Release cache.
* g10/call-agent.c (agent_probe_any_secret_key): Init and try to use
the keygrip cache.
(agent_genkey): Clear the cache.
(agent_import_key): Ditto.
* g10/keylist.c (list_all, list_one): Pass ctrl to
agent_probe_any_secret_key.
* g10/getkey.c (lookup): Ditto.
--
With this change we first ask the agent for a list of all secret
keygrips and use that list instead of asking the agent for each public
key. Speeds up my "gpg -K" with a lot of secret and public keys by
more than 25%.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command.c (cmd_readkey): Add option --no-data and special
handling for $SIGNKEYID and $AUTHKEYID.
* g10/call-agent.c (agent_scd_getattr): Create shadow keys for KEY-FPR
output.
* g10/skclist.c (enum_secret_keys): Automagically get a missing public
key for the current card.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command.c (cmd_keytotpm): New.
(agent/command.c): Register new command KEYTOTPM.
* g10/call-agent.c (agent_keytotpm): New.
* g10/keyedit.c (cmdKEYTOTPM): New command "keytotpm".
(keyedit_menu): Implement.
--
The plumbing is done in two parts: the agent is modified to understand
a KEYTOTPM assuan command taking the key grip as an argument. This
simply obtains the key s expression and calls the existing writeky
diversion to the tpm2daemon. The daemon reponds with the TPM
conversion of the key and that key is then stored in the keyfile as a
shadowed-private-key with "tpm2-v1" type.
To effect the conversion, all the user does from gpg --edit-key is
select which private key they wish to move (or move the primary if no
key is selected) and type keytotpm. The conversion to TPM form is
instantaneous and once converted, the actual key cannot be recovered,
meaning that if you want your gpg key to move to a new laptop you must
keep an unconverted backup copy in a safe location.
When you do a list command, all TPM keys show up as
card-no: TPM-Protected
The key is stored encrypted to the TPM2 storage seed and since each
TPM has a unique seed, only the single TPM contained in your laptop
can now read the key. This means you cannot simply copy the shadowed
key file over to a new laptop, you must copy over the backup copy and
then convert it to TPM form on the new laptop.
To decomission your laptop, execute a tssclear command which
regenerates the storage seed and effectively shreds all keys. Note
when you have done this *every* TPM2 shadowed private key becomes
unreadable by any TPM and all are effectively destroyed.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Very minor cosmetic changes.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/call-tpm2d.c: New.
* divert-tpm2.c: New.
* agent/Makefile.am: Add new files.
* agent/agent.h (DAEMON_TPM2D): New. Add stub fucntions.
* agent/call-daemon.c (GNUPG_MODULE_NAME_TPM2DAEMON): New.
* agent/command.c (do_one_keyinfo): Handle tpmv2.
* agent/gpg-agent.c (oTpm2daemonProgram): New.
(opts): New option --tpm2daemon-program.
(parse_rereadable_options): Handle option.
* agent/pkdecrypt.c (agent_pkdecrypt): Divert to tpm2d.
(agent_pksign_do): Ditto.
---
A new shadow key type: "tpm2-v1" is introduced signalling that the
shadowed key is handled by the tpm2daemon. A function to identify
this type is introduced and diversions to the tpm2daemon functions are
conditioned on this function for pkign and pkdecrypt where the same
diversions to scd are currently done. The (info) field of the
shadowed key stores the actual TPM key. The TPM key is encrypted so
only the physical TPM it was created on can read it (so no special
protection is required for the info filed), but if the (info) field
becomes corrupt or damaged, the key will be lost (unlike the token
case, where the key is actually moved inside the token).
Note, this commit adds handling for existing TPM format shadow keys,
but there is still no way to create them.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Additional changes:
* Add ChangeLog entries.
* Some minor indentation fixes.
* agent/Makefile.am (gpg_agent_SOURCES): Change to make distcheck
work.
* agent/agent.h [!HAVE_LIBTSS]: Do not return -EINVAL but an
gpg_error_t. Mark args as unused.
* agent/protect.c (agent_is_tpm2_key): Free BUF.
Signed-off-by: Werner Koch <wk@gnupg.org>
* configure.ac: Require at least Libgcrypt 1.9.0. Remove all
GCRYPT_VERSION_NUMBER dependent code.
--
Only Libgcrypt 1.9 implements EAX which is a mandatory algorithm in
RFC4880bis.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/sysutils.h (struct gnupg_dirent_s): New.
* common/sysutils.c: Include dirent.h.
(struct gnupg_dir_s): New.
(gnupg_opendir, gnupg_readdir, gnupg_closedir): New. Change all
callers of opendir, readdir, and closedir to use these functions.
--
GnuPG-bug-id: 5098
* common/stringhelp.h (split_fields): Use const * for the strings in
the ARRAY.
(split_fields_colon): Likewise.
* common/stringhelp.c (split_fields, split_fields_colon): Fix
the implementation.
* agent/call-scd.c, agent/command.c: Follow the change.
* common/t-stringhelp.c, dirmngr/loadswdb.c: Likewise.
* g10/call-agent.c, tools/card-call-scd.c: Likewise.
* tools/card-yubikey.c, tools/gpg-card.c: Likewise.
* tools/gpg-card.h, tools/gpg-wks-client.c: Likewise.
* tools/gpgconf-comp.c, tools/gpgconf.c: Likewise.
* tools/wks-util.c: Likewise.
--
The strings in the ARRAY don't need to be released by caller, as those
are references. It's easier to follow the code when it's explicitly
const *.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/command.c (cmd_sethash): Add option --pss and allow for
--hash=null.
* agent/agent.h (struct server_control_s): Add digest.is_pss and
zero where needed.
* agent/pksign.c (agent_pksign_do): Allow for PSS with cards.
* scd/command.c (cmd_pksign): Add for --hash=none.
--
This is not a full implementaion of PSS but allows scdaemon card
drivers to detect already PSS formatted data.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command.c (cmd_get_passphrase): Never repeat in loopback mode;
same as with !OPT_NEWSYMKEY.
--
In loopback mode there shall not be any repeat because the caller is
expected to do any confirmation before passing a new passphrase to
gpg.
Fixes-commit: eace4bbe1d
GnuPG-bug-id: 4991
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/call-pinentry.c (agent_get_passphrase): Add arg pininfo.
* agent/genkey.c (check_passphrase_constraints): New arg no_empty.
* agent/command.c (reenter_passphrase_cmp_cb): New.
(cmd_get_passphrase): Add option --newsymkey.
--
This new option allows to present a passphrase with the usual repeat
box as it is used by gpg-agent's internal key generation.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/call-scd.c: Factor re-usable code out to ...
* agent/call-daemon.c: new. Store infos in an array to allow for
other backend daemons.
* agent/Makefile.am (gpg_agent_SOURCES): Add new file.
* agent/agent.h: Include assuan.h.
(enum daemon_type): New.
(opt): Replace scdaemon_program by daemon_program array. Replace
scd_local by a array d_local. Change users accordingly.
--
The model I'm using for a TPM daemon is the current scdaemon. That
includes start and stop handlers plus liveness checks and an assuan
socket generator. To avoid massive code duplication (and save me a
lot of effort), I've elected to strip this code out of call-scd.c into
a generic framework which can then be reused as is by the TPM handling
daemon.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Co-authored-by: Werner Koch <wk@gnupg.org>
Modified original patch for 2.2 heavily to fit the new framework used
in master (gnupg 2.3)
Signed-off-by: Werner Koch <wk@gnupg.org>
--
For TPM support it is necessary to indroduce another type of shadow
key, so allow other agent functions to extract the type so they can
make the right decisions based on it.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Minor editorial changes by wk
* agent/agent.h (struct server_control_s): Add field digest.data.
* agent/gpg-agent.c (agent_deinit_default_ctrl): Free that field.
* agent/command.c (reset_notify): Ditto.
(start_command_handler): ditto.
(cmd_sethash): Add new option --inquire.
* agent/call-scd.c (agent_card_pksign): For now return an error if
inquire mode was used.
* agent/command-ssh.c (ssh_handler_sign_request): Make sure
digest.data is cleared.
* agent/divert-scd.c (divert_pksign): Implement inquire mode.
* agent/pksign.c (agent_pksign_do): Ditto.
--
This is required to support EdDSA according to RFC8410.
GnuPG-bug-id: 4888
No functional changes, just fixing minor spelling issues.
---
Most of these were identified from the command line by running:
codespell \
--ignore-words-list fpr,stati,keyserver,keyservers,asign,cas,iff,ifset \
--skip '*.po,ChangeLog*,help.*.txt,*.jpg,*.eps,*.pdf,*.png,*.gpg,*.asc' \
doc g13 g10 kbx agent artwork scd tests tools am common dirmngr sm \
NEWS README README.maint TODO
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
* agent/call-scd.c (agent_card_serialno): Allow NULL for R_SERIAL.
(struct readkey_status_parm_s): New.
(readkey_status_cb): New.
(agent_card_readkey): Add optional arg R_KEYREF and change all
callers.
* agent/findkey.c (key_parms_from_sexp): Allow also a "public-key".
* agent/divert-scd.c (ask_for_card): Allow for SHADOW_INFO being NULL.
* agent/pksign.c (agent_pksign_do): Fallback to sign with an on-card
if there is no stub key yet. Create the stub key. Also fixed a
misnaming between s_pkey and s_skey.
--
This change allows to create OpenPGP keys directly from a card without
first making sure that a stub key exists. It is also the less
surprising behaviour.
Signed-off-by: Werner Koch <wk@gnupg.org>
Werner Koch