* agent/findkey.c (agent_write_private_key): Factor file name
generation out to ...
(fname_from_keygrip): new.
(write_extended_private_key): Add and implement new arg MAYBE_UPDATE.
(agent_write_shadow_key): Ditto.
* agent/command.c (cmd_readkey): Update the shadow-key in card mode.
--
GnuPG-bug-id 6135
* agent/divert-scd.c (linefeed_to_percent0A): New.
(ask_for_card): Add arg grip. Read Token and Label items and use
them.
(divert_pksign, divert_pkdecrypt): Pass down grip.
* agent/findkey.c (write_extended_private_key): Add args serialno,
keyref, and dispserialno. Writen Token item.
(agent_write_private_key): Add args serialno, keyref, and
dispserialno.
(read_key_file): Add arg r_keymeta.
(agent_keymeta_from_file): New.
(agent_write_shadow_key): Remove leading spaces from serialno and keyid.
* agent/protect-tool.c (agent_write_private_key): Ditto.
* agent/learncard.c (agent_handle_learn): Get DISPSERIALNO and pass to
agent_write_shadow_key.
* agent/command-ssh.c (card_key_available): Ditto.
--
GnuPG-bug-id: 6135
This patch backports some changes from master but also adds the
Display-S/N tracking.
* common/sysutils.c (gnupg_access): New. Replace all calls to access
by this wrapper.
* common/homedir.c (w32_shgetfolderpath): Change to return UTF-8
directory name.
(standard_homedir): Adjust for change.
(w32_commondir, gnupg_cachedir): Ditto.
--
Also use SHGetFolderPathW instead of SHGetFolderPathA on Windows.
This is required to correctly handle non-ascii filenames on Windows.
GnuPG-bug-id: 5098
(cherry picked from commit c94ee1386e)
* agent/findkey.c (agent_public_key_from_file): pass size_t as int to
gcry_sexp_build_array's %b.
--
This is only a problem on big-endian systems where size_t is not the
same size as an int. It was causing failures on debian's s390x,
powerpc64, and sparc64 platforms.
There may well be other failures with %b on those platforms in the
codebase, and it probably needs an audit.
Once you have a key in private-keys-v1.d/$KEYGRIP.key with a comment
or a uri of reasonable length associated with it, this fix can be
tested with:
gpg-agent --server <<<"READKEY $KEYGRIP"
On the failing platforms, the printed comment will be of length 0.
Gnupg-bug-id: 4501
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
* agent/agent.h (PINENTRY_STATUS_*): Expose to public.
(struct pin_entry_info_s): Add status.
* agent/call-pinentry.c (agent_askpin): Clearing the ->status
before the loop, let the assuan_transact set ->status. When
failure with PINENTRY_STATUS_PASSWORD_FROM_CACHE, it returns
soon.
* agent/findkey.c (unprotect): Clear the pinentry cache,
when it causes an error.
--
Cherry-picked from master commit of:
02a2633a7f
Debian-bug-id: 919856
GnuPG-bug-id: 4348
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/cache.c (agent_put_cache): Add arg 'ctrl' and change all
callers to pass it.
(agent_get_cache): Ditto.
* agent/cache.c (struct cache_items_s): Add field 'restricted'.
(housekeeping): Adjust debug output.
(agent_flush_cache): Ditto.
(agent_put_cache): Ditto. Take RESTRICTED into account.
(agent_get_cache): Ditto.
--
If requests are coming from different sources they should not share the
same cache. This way we make sure that a Pinentry pops up for a
remote request to a key we have already used locally.
GnuPG-bug-id: 3858
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command.c (cmd_pksign): Change var name 'rc' to 'err'.
* agent/findkey.c (read_key_file): Ditto. Change return type to
gpg_error_t. On es_fessk failure return a correct error code.
(agent_key_from_file): Change var name 'rc' to 'err'.
* agent/pksign.c (agent_pksign_do): Ditto. Change return type to
gpg_error_t. Return a valid erro code on malloc failure.
(agent_pksign): Ditto. Change return type to gpg_error_t. replace
xmalloc by xtrymalloc.
* agent/protect.c (calculate_mic): Change return type to gpg_error_t.
(do_decryption): Ditto. Do not init RC.
(merge_lists): Change return type to gpg_error_t.
(agent_unprotect): Ditto.
(agent_get_shadow_info): Ditto.
--
While code starring for bug 3266 I found two glitches and also changed
var name for easier reading.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/agent.h (opt): New field 'ssh_fingerprint_digest'.
* agent/command-ssh.c (data_sign, ssh_identity_register): Honor the
option for strings used to communicate with the user.
* agent/findkey.c (agent_modify_description): Likewise.
* agent/gpg-agent.c (cmd_and_opt_values): New value.
(opts): New option '--ssh-fingerprint-digest'.
(parse_rereadable_options): Set the default to MD5 for now.
(main): Handle the new option.
* doc/gpg-agent.texi: Document the new option.
--
OpenSSH has transitioned from using MD5 to compute key fingerprints to
SHA256. This patch makes the digest used when communicating key
fingerprints to the user (e.g. in pinentry dialogs) configurable.
For now this patch conservatively defaults to MD5.
GnuPG-bug-id: 2106
Signed-off-by: Justus Winter <justus@g10code.com>
* agent/findkey.c (agent_delete_key): Add arg 'only_stubs'.
* agent/command.c (cmd_delete_key): Add option --stub-only.
--
This option can be used to savely remove stub keys.
* agent/Makefile.am (AM_CPPFLAGS): Remove -I$(top_srcdir)/common.
* agent/call-pinentry.c, agent/call-scd.c: Follow the change.
* agent/command-ssh.c, agent/command.c, agent/cvt-openpgp.c: Ditto.
* agent/divert-scd.c, agent/findkey.c, agent/genkey.c: Ditto.
* agent/gpg-agent.c, agent/pksign.c, agent/preset-passphrase.c: Ditto.
* agent/protect-tool.c, agent/protect.c, agent/trustlist.c: Ditto.
* agent/w32main.c: Ditto.
--
For openpty function, we need to include util.h on some OS.
We also have util.h in common/, so this change is needed.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/divert-scd.c (has_percent0A_suffix): New.
(getpin_cb): Prepend DESC_TEXT to the prompt.
* agent/findkey.c (modify_description): Rename to ...
(agent_modify_description): this. MAke global. Add kludge to remove
empty parentheses from the end.
(agent_key_from_file, agent_delete_key): Adjust for above change.
* agent/pksign.c (agent_pksign_do): Modify DESC_TEXT also when
diverting to a card.
--
Now that we have support for multiple tokens, it is important to show
information on which key has been requested. Without that it may
happen that the PIN for a wrong card is accidentally entered.
The texts are a bit ugly, because they talk about "passphrase" but
later about entering a PIN.
A quick hack would be to s/passphrase/PIN/ in the description but that
is complicated due to i18n. Another solution might be never to talk
about PINs in the description but always about "passphrase: and only
use "PIN" or "passphrase" on the left of the entry field.
* agent/findkey.c (agent_write_private_key): Recover from an error of
GPG_ERR_ENOENT when FORCE=1 and it is opened with "rb+".
--
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* common/name-value.c (struct name_value_container): Add field
'private_key_mode'.
(my_error): New. Use instead of gpg_error.
(nvc_new_private_key): New.
(nve_release): Add arg 'private_key_mode'.
(nvc_release): Call nve_release with private_key_mode flag.
(nvc_delete): Ditto.
(_nvc_add): Do no special case "Key:" in non-private_key_mode.
(nvc_get_private_key): Return error in non-private_key_mode.
(nvc_set_private_key): Ditto.
(nvc_parse): Factor all code out to ...
(do_nvc_parse): new. Add arg 'for_private_key'.
(nvc_parse_private_key): New.
* agent/findkey.c (write_extended_private_key): Replace nvc_parse by
nvc_parse_private_key.
(read_key_file): Ditto.
* common/t-name-value.c (private_key_mode): New variable.
(my_nvc_new): New. Replace all callers.
(test_key_extraction): Take mode in account.
(run_tests): Ditto.
(run_modification_tests): Ditto.
(parse): Ditto.
(main): Add option --parse and rename --parse to --parse-key.
--
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/name-value.c, common/name-value.h: Rename symbol prefixes
from "pkc_" to "nvc_" and from "pke_" to "nve_". Change all callers.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/private-keys.c: Rename to name-value.c.
* common/private-keys.h: Rename to name-value.h. Chage all users.
* common/t-private-keys.c: Rename to t-name-value.c.
* common/Makefile.am: Adjust accordingly.
--
The module is cool enough to be used for other purposes as well. Thus
we better change the name.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/findkey.c (write_extended_private_key): New function.
(agent_write_private_key): Detect if an existing file is in extended
format and update the key within if it is.
(read_key_file): Handle the new format.
* agent/keyformat.txt: Document the new format.
* common/Makefile.am: Add the new files.
* common/private-keys.c: New file.
* common/private-keys.h: Likewise.
* common/t-private-keys.c: Likewise.
* common/util.h (alphap, alnump): New macros.
* tests/migrations: Add test demonstrating that we can cope with the
new format.
--
GnuPG 2.3+ will use a new format to store private keys that is both
more flexible and easier to read and edit by human beings. The new
format stores name,value-pairs using the common mail and http header
convention.
This patch adds the parser and support code and prepares GnuPG 2.1 for
the new format.
Signed-off-by: Justus Winter <justus@g10code.com>
* po/Makevars (XGETTEXT_OPTIONS): Add keyword "L_".
* common/i18n.c (i18n_localegettext): New stub.
* common/i18n.h: Expand the LunderscoreIMPL macro.
* agent/agent.h (L_): New.
(LunderscoreIMPL): New.
* agent/call-pinentry.c (setup_qualitybar): Add arg ctrl anc change
caller.
* agent/findkey.c (try_unprotect_cb): Add local var ctrl.
* agent/genkey.c (check_passphrase_constraints): Replace xtryasprintf
by xtrystrdup to avoid gcc warning. Unfortinately this changes the
string.
(agent_ask_new_passphrase): Cleanup the use of initial_errtext.
--
Static strings in gpg-agent need to be translated according to the
locale set by the caller. This is required so that a gpg-agent can be
started in one locale and a gpg can be run in another. If we don't do
this the static strings (prompt, buttons) are not or in the wrong
locale translated while dynamic strings (e.g. key description) uses
the locale of gpg.
This is only the first part of the change the actual local switching
still needs to be implemented.
Debian-bug-id: 788983
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/call-pinentry.c (agent_askpin): Add args keyinfo and
cache_mode. Change all callers to pass (NULL,0) for them. Send
SETKEYINFO command.
* agent/findkey.c (unprotect): Pass the keygrip and the cache_mode for
the new args.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/cvt-openpgp.c (extract_private_key): Add arg "arraysize".
Make sure that R_FLAGS and R_CURVE are set to NULL.
--
Given that extract_private_key is not file local it is good to have some
extra asserts to protect against future wrong use.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/cvt-openpgp.c (extract_private_key): New.
(convert_to_openpgp): Use extract_private_key.
* agent/findkey.c (agent_public_key_from_file): Use
extract_private_key.
--
This patch add support of ECC key with a curve name and flags. Since
same functionality is also needed for convert_to_openpgp, it was
factored out into the extract_private_key function.
* agent/cache.c (last_stored_cache_key): New.
(agent_get_cache): Allow NULL for KEY.
(agent_store_cache_hit): New.
* agent/findkey.c (unprotect): Call new function and try to use the
last stored key.
* g10/revoke.c (create_revocation): Add arg CACHE_NONCE and pass to
make_keysig_packet.
(gen_standard_revoke): Add arg CACHE_NONCE and pass to
create_revocation.
* g10/keygen.c (do_generate_keypair): Call gen_standard_revoke with
cache nonce.
--
This patch adds two features:
1. The key for the last passphrase successfully used for unprotecting
a key is stored away. On a cache miss the stored away passphrase is
tried as well. This helps for the common GPG use case of having a
signing and encryption (sub)key with the same passphrase. See the
code for more comments.
2. The now auto-generated revocation certificate does not anymore
popup a passphrase prompt. Thus for standard key generation the
passphrase needs to be given only once (well, two with the
confirmation).
* agent/findkey.c (key_parms_from_sexp): Add algo name "ecc".
(agent_is_dsa_key): Ditto.
(agent_is_eddsa_key): New. Not finished, though.
* agent/pksign.c (do_encode_eddsa): New.
(agent_pksign_do): Use gcry_log_debug functions.
* agent/protect.c (agent_protect): Parse a flags parameter.
* g10/keygen.c (gpg_curve_to_oid): Move to ...
* common/openpgp-oid.c (openpgp_curve_to_oid): here and rename.
(oid_ed25519): New.
(openpgp_oid_is_ed25519): New.
(openpgp_oid_to_curve): New.
* common/t-openpgp-oid.c (test_openpgp_oid_is_ed25519): New.
* g10/build-packet.c (gpg_mpi_write): Write the length header also for
opaque MPIs.
(gpg_mpi_write_nohdr): New.
(do_key): Use gpg_mpi_write_nohdr depending on algorithm.
(do_pubkey_enc): Ditto.
* g10/ecdh.c (pk_ecdh_encrypt_with_shared_point): Use
gpg_mpi_write_nohdr.
* g10/export.c (transfer_format_to_openpgp):
* g10/keygen.c (ecckey_from_sexp): Return the error.
(gen_ecc): Repalce arg NBITS by CURVE.
(read_parameter_file): Add keywords "Key-Curve" and "Subkey-Curve".
(ask_curve): New.
(generate_keypair, generate_subkeypair): Use ask_curve.
(do_generate_keypair): Also pass curve name.
* g10/keylist.c (list_keyblock_print, list_keyblock_colon): Print
curve name.
* g10/parse-packet.c (mpi_read): Remove workaround for
Libcgrypt < 1.5.
(parse_key): Fix ECC case. Print the curve name.
* g10/pkglue.c (mpi_from_sexp): Rename to get_mpi_from_sexp.
(pk_verify, pk_check_secret_key): Add special case for Ed25519.
* g10/seskey.c (encode_md_value): Ditto.
* g10/sign.c (do_sign, hash_for, sign_file): Ditto.
--
Be warned that this code is subject to further changes and that the
format will very likely change before a release. There are also known
bugs and missing code.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command.c (cmd_import_key): Add option --unattended.
* agent/cvt-openpgp.c (convert_transfer_key): New.
(do_unprotect): Factor some code out to ...
(prepare_unprotect): new function.
(convert_from_openpgp): Factor all code out to ...
(convert_from_openpgp_main): this. Add arg 'passphrase'. Implement
openpgp-native protection modes.
(convert_from_openpgp_native): New.
* agent/t-protect.c (convert_from_openpgp_native): New dummy fucntion
* agent/protect-tool.c (convert_from_openpgp_native): Ditto.
* agent/protect.c (agent_unprotect): Add arg CTRL. Adjust all
callers. Support openpgp-native protection.
* g10/call-agent.c (agent_import_key): Add arg 'unattended'.
* g10/import.c (transfer_secret_keys): Use unattended in batch mode.
--
With the gpg-agent taking care of the secret keys, the user needs to
migrate existing keys from secring.gpg to the agent. This and also
the standard import of secret keys required the user to unprotect the
secret keys first, so that gpg-agent was able to re-protected them
using its own scheme. With many secret keys this is quite some
usability hurdle. In particular if a passphrase is not instantly
available.
To make this migration smoother, this patch implements an unattended
key import/migration which delays the conversion to the gpg-agent
format until the key is actually used. For example:
gpg2 --batch --import mysecretkey.gpg
works without any user interaction due to the use of --batch. Now if
a key is used (e.g. "gpg2 -su USERID_FROM_MYSECRETKEY foo"), gpg-agent
has to ask for the passphrase anyway, converts the key from the
openpgp format to the internal format, signs, re-encrypts the key and
tries to store it in the gpg-agent format to the disk. The next time,
the internal format of the key is used.
This patch has only been tested with the old demo keys, more tests
with other protection formats and no protection are needed.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command.c (cmd_keytocard): Decrement KEYDATALEN.
* agent/findkey.c (agent_public_key_from_file): Increment for ELEMS.
--
For ECDSA and ECDH, there are 6 elements.
