* g10/call-agent.c (agent_pkdecrypt): accept but do not require
NUL-terminated data from the agent.
* sm/call-agent.c (gpgsm_agent_pkdecrypt): accept but do not require
NUL-terminated data from the agent.
--
The current code for both gpg and gpgsm assumes that gpg-agent will
return string terminated with a single NUL, even though the string
that it receives is also already length-delimited. Since these tools
might be talking to an older version of gpg-agent, we want to continue
to make sense of such a response, but we really shouldn't depend on
it. Rather, we can just strip off all trailing NULs and then treat
the remaining string as a proper S-expression.
We can't assume tha the S-expression itself is a NUL-terminated
string, because any of the canonically-represented objects could
contain a NUL byte internally. But if it's a proper S-expression,
then it must actually terminate in a non-NUL ')' octet.
I note that gpgsm_agent_pkdecrypt() appears to try to work with older
versions of gpg-agent which might not return a full S-expression.
This makes it harder to reason about, since a maliciously-formed
return value could contain a string that could cause invalid memory
access when invoking strtoul (e.g. all numbers up to the end of the
buffer). So we still have to manually NUL-terminate it before
continuing in that codepath. This cleanup would be easier if we could
just assume that the agent will always return an S-expression.
Perhaps that could be a subsequent cleanup for gpgsm? Do we expect
all versions of gpgsm to interoperate with all past versions of
gpg-agent?
gpg's agent_pkdecrypt() has no such qualms -- if the returned object
is not a full S-expression, then it rejects the response. This makes
it much easier to reason about the pkdecrypt response without
modification, and allows us to strip any trailing NUL bytes knowing
that the response string will be properly terminated with a close
parenthesis.
GnuPG-bug-id: 4652
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
* g10/call-agent.c (agent_scd_keypairinfo): Add arg 'keyref'.
* g10/keygen.c (ask_algo): Adjust.
* g10/skclist.c (enum_secret_keys): Request the keyref directly.
--
This improves commit ec6a677923 to avoid
looping over all keypairinfos. This way scdaemon does not need to
compute all the keypairinfos for all keys of a card. This patch is
possible due the enhanced READKEY command in scdaemon.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/call-agent.c (struct getattr_one_parm_s): New.
(getattr_one_status_cb): New.
(agent_scd_getattr_one): New.
* g10/pubkey-enc.c (get_it): Allow the standard leading zero byte from
pkcs#1.
* g10/skclist.c (enum_secret_keys): Handle non-OpenPGP cards.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/call-agent.c (agent_scd_keypairinfo): Use --keypairinfo.
* sm/call-agent.c (gpgsm_agent_scd_keypairinfo): Ditto.
* scd/app-openpgp.c (do_getattr): Add attributes "$ENCRKEYID" and
"$SIGNKEYID".
* scd/app-piv.c (do_getattr): Ditto.
--
We already have $AUTHKEYID to locate the keyref of the key to be used
with ssh. It will also be useful to have default keyref for
encryption and signing. For example, this will allow us to repalce
the use of "OPENPGP.2" by a app type specific keyref.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/call-agent.c (agent_scd_readkey): New.
* g10/keygen.c (ask_key_flags): Factor code out to ..
(ask_key_flags_with_mask): new.
(ask_algo): New mode 14.
--
Note that this new menu 14 is always displayed. The usage flags can
be changed only in --expert mode, though. Creating and using signing
keys works but decryption does not yet work; we will need to tweak a
couple of other places for that. Tested with a Yubikey's PIV app.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/call-agent.c (scd_keypairinfo_status_cb): Also store the usage
flags.
* sm/call-agent.c (scd_keypairinfo_status_cb): Ditto.
* sm/certreqgen-ui.c (gpgsm_gencertreq_tty): Print the usage flags.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/call-agent.c (start_agent): Use card app auto selection.
* g10/card-util.c (current_card_status): Print the Application type.
(card_status): Put empty line between card listings.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/call-agent.c (agent_get_s2k_count): Actually return the count.
--
The previous push was definitely a bit to hasty.
Fixes-Commit: ec13b1c562
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/passphrase.c (encode_s2k_iterations): Move function to ...
* common/openpgp-s2k.c: new file. Remove default intialization code.
* common/openpgpdefs.h (S2K_DECODE_COUNT): New to keep only one copy.
* g10/call-agent.c (agent_get_s2k_count): Change to return the count
and print an error.
* agent/protect.c: Include openpgpdefs.h
* g10/card-util.c (gen_kdf_data): Adjust for changes
* g10/gpgcompose.c: Include call-agent.h.
(sk_esk): Adjust for changes.
* g10/passphrase (passphrase_to_dek): Adjust for changes.
* g10/main.h (S2K_DECODE_COUNT): Remove macro.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/call-agent.c (learn_status_cb): Parse "bt" flag.
* g10/call-agent.h: New member field "bt".
* g10/card-util.c (uif): Limit its access only when it is supported.
* scd/app-openpgp.c (do_setattr): Allow access to UIF objects only
when there is a button.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* g10/call-agent.h (agent_card_info_s): Rename the "*valid" fields to
"*len".
* g10/call-agent.c (unhexify_fpr): Change to take a FPRLEN and to
return the actual length.
(agent_release_card_info): Adjust for these changes.
* g10/card-util.c (print_sha1_fpr): Rename to print_shax_fpr and add
arg FPRLEN. Change all callers to pass the length.
(print_sha1_fpr_colon): Rename to print_shax_fpr_colon and add arg
FPRLEN. Change all callers to pass the length.
(fpr_is_zero): Add arg FPRLEN.
(fpr_is_ff): Ditto.
(show_card_key_info): Use the new functions.
* g10/skclist.c (enum_secret_keys): Use MAX_FINGERPRINT_LEN.
--
This is not needed right now but we should get rid of all hard coded
fingerprint lengths. Thus this change.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/gpg.c (oRequestOrigin): New const.
(opts): New option --request-origin.
(main): Parse that option.
* g10/options.h (struct opt): Add field request_origin.
* g10/call-agent.c (start_agent): Send option to the agent.
* sm/gpgsm.c (oRequestOrigin): New const.
(opts): New option --request-origin.
(main): Parse that option.
* sm/gpgsm.h (struct opt): Add field request_origin.
* sm/call-agent.c (start_agent): Send option to the agent.
Signed-off-by: Werner Koch <wk@gnupg.org>
--
Sorry, I accidentally pushed the last commit without having amended it
with this fix.
Fixes-commit: fd595c9d36
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/call-agent.h (agent_card_info_s): Add fields grp1, grp2 and
grp3.
* g10/call-agent.c (unhexify_fpr): Allow for space as delimiter.
(learn_status_cb): Parse KEYPARIINFO int the grpX fields.
* g10/card-util.c (print_keygrip): New.
(current_card_status): Print "grp:" records or with --with-keygrip a
human readable keygrip.
--
Suggested-by: Peter Lebbing <peter@digitalbrains.com>
Signed-off-by: Werner Koch <wk@gnupg.org>
* configure.ac (ENABLE_LOG_CLOCK): New ac_define and option.
* common/logging.c (log_clock): Use ENABLE_LOG_CLOCK to enable
timestamp printing.
* g10/call-agent.c (agent_pksign): Time signing.
* g10/sig-check.c (check_signature_end_simple): Time verification.
--
Timing for verification is limited to data signatures because this is
the most common thing to evaluate. We should consider to change
log_clock to printf style so that we could print the signature class
and other info.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/call-agent.c (warn_version_mismatch): Print a note on how to
restart the servers.
* g10/call-dirmngr.c (warn_version_mismatch): Ditto.
* sm/call-agent.c (warn_version_mismatch): Ditto.
* sm/call-dirmngr.c (warn_version_mismatch): Ditto.
--
We should move this fucntion to common. However, the status output
functions are different and would need to be streamlined too.
GnuPG-bug-id: 3117
Debian-bug-id: 860745
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/compliance.c (gnupg_rng_is_compliant): New.
* g10/call-agent.c (start_agent) [W32]: Check rng compliance.
* sm/call-agent.c (start_agent) [W32]: Ditto.
* g10/encrypt.c (encrypt_simple, encrypt_crypt): Check that the RNG is
compliant.
* sm/encrypt.c (gpgsm_encrypt): Ditto.
* g10/sign.c (do_sign): Ditto.
* sm/sign.c (gpgsm_sign): Ditto.
--
Under Windows we need to check that the Jitter RNG is active in de-vs
mode. Under Linux this is not necessary because /dev/random can be
scrutinized and is believed to provide enough entropy.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/call-agent.c (warn_version_mismatch): Use log_info if error is
"not supported".
--
This fix may make the fix for
GnuPG-bug-id: 3192
even more robust.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/call-agent.c (warn_version_mismatch): Revert.
(start_agent): Suppress version mismatch if relevant.
* g10/getkey.c (get_seckey_default_or_card): New.
* g10/skclist.c (build_sk_list): Use get_seckey_default_or_card.
--
The change of 97a2394, which prefers available card than default key
specified is too strong.
Fixes-commit: 97a2394eca
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
--
For proper operations as a server we need to avoid global variables.
Thus we need to pass the session state CTRL to most functions. Quite
a lot of changes but fortunately straightforward to do.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/call-agent.c (select_openpgp): Remove.
--
By this change, the function get_serialno_cb will be also unused. But
please don't remove the function, because it will be soon used.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* g10/gpg.c (opts): Rename option.
* g10/call-agent.c (agent_scd_learn): Update comment.
* doc/gpg.texi: Update accordingly.
--
This change has a surprising side effect. Previously, --edit was an
alias for --edit-key, because the argument parser actually accepts
unique prefixes of all options. With this change, however, --edit is
ambiguous.
GnuPG-bug-id: 2700
Signed-off-by: Justus Winter <justus@g10code.com>
* common/openpgp-oid.c (openpgp_is_curve_supported): Add optional arg
R_ALGO and change all callers.
* common/util.h (GPG_ERR_UNKNOWN_FLAG): New error code.
* g10/options.h (struct opt): Add field DEF_NEW_KEY_ALGO.
* g10/gpg.c (oDefaultNewKeyAlgo): New enum.
(opts): New option "--default-new-key-algo".
(main): Set the option.
* g10/keygen.c: Remove DEFAULT_STD_ FUTURE_STD_ constants and replace
them by ...
(DEFAULT_STD_KEY_PARAM, FUTURE_STD_KEY_PARAM): new string constants.
(get_keysize_range): Remove arg R_DEF and return that value instead.
Change all callers.
(gen_rsa): Use get_keysize_range instead of the removed
DEFAULT_STD_KEYSIZE.
(parse_key_parameter_part): New function.
(parse_key_parameter_string): New function.
(quick_generate_keypair): Refactor using parse_key_parameter_string.
(generate_keypair): Ditto.
(parse_algo_usage_expire): Ditto.
--
This new option is intended to be used in the forthcoming
--set-profile command of gpgconf. It allows to provide a gpg
configuration with custom defaults for a new key using the simple
commands which use the default algorithm set.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/stringhelp.c: Include limits.h.
(compare_version_strings): Change semantics to behave like strcmp.
Include the patch lebel in the comparison. Allow checking a single
version string.
* common/t-stringhelp.c (test_compare_version_strings): Adjust test
vectors and a few new vectors.
* g10/call-agent.c (warn_version_mismatch): Adjust to new sematics.
* g10/call-dirmngr.c (warn_version_mismatch): Ditto.
* sm/call-agent.c (warn_version_mismatch): Ditto.
* sm/call-dirmngr.c (warn_version_mismatch): Ditto.
Signed-off-by: Werner Koch <wk@gnupg.org>
* scd/app-openpgp.c (send_key_attr): Use curve instead of OID.
(ecdh_params): New.
(ecc_read_pubkey): Use ecdh_params. Use curve name.
(ecc_writekey): Likewise.
(ecc_curve): Rename from ecc_oid.
(parse_algorithm_attribute): Use ecc_curve.
* g10/call-agent.c (learn_status_cb): Use openpgp_is_curve_supported to
intern the curve name string.
* g10/card-util.c (card_status): Conver curve name to alias for print.
--
Now, sdcaemon answer for KEY-ATTR is in the canonical curve name
instead of the alias. Since it is used of key generation for
card encryption key with backup, it should be canonical name.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* g10/keygen.c (generate_keypair): For card key generation, fill
parameters by KEY-ATTR.
* scd/app-openpgp.c (ecc_read_pubkey): OID should be freed at last,
after its reference by OIDBUF is finished.
(ecc_writekey): Likewise.
--
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* g10/call-agent.c (scd_genkey_cb_append_savedbytes): Remove.
(scd_genkey_cb): Only handle KEY-CREATED-AT and PROGRESS.
(agent_scd_genkey): Remove INFO argument. CREATETIME is now in/out
argument.
(agent_readkey): Use READKEY --card instead of SCD READKEY.
* g10/keygen.c (gen_card_key): Use READKEY --card command of the agent
to retrieve public key information from card and let the agent make
a file for private key with shadow info.
--
This change removes gpg's KEY-DATA handling for SCD GENKEY. Information
with KEY-DATA is simply not used. Instead, it is read by READKEY --card
command of gpg-agent. This can consolidate public key handling in a
single method by READKEY.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
