* sm/export.c (sexp_to_kparms): Fix the computation of array[6],
which must be 'd mod (q-1)' but was 'p mod (q-1)'.
--
This bug is not serious but makes some consistency checks fail.
For example, 'openssl rsa -check' reports the following error:
$ gpgsm --out my.key --export-secret-key-raw 0xXXXXXXXX
$ openssl rsa -check -noout -inform DER -in my.key
RSA key error: dmq1 not congruent to d
--
Let me(wk) add this:
This bug was introduced with
Fixes-commit: 91056b1976bfb7b755e53b1302f4ede2b5cbc05d
right at the start of GnuPG 2.1 in July 2010. Before that (in 2.0) we
used gpg-protect-tool which got it right. We probably never noticed
this because gpgsm, and maybe other tools too, fix things up during
import.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/asshelp2.c (vprint_assuan_status_strings): New.
(print_assuan_status_strings): New.
* agent/command.c (agent_write_status): Replace by call to new
function.
* dirmngr/server.c (dirmngr_status): Ditto.
* g13/server.c (g13_status): Ditto.
* g13/sh-cmd.c (g13_status): Ditto.
* sm/server.c (gpgsm_status2): Ditto.
* scd/command.c (send_status_info): Bump up N.
--
This fixes a potential overflow if LFs are passed to the status
string functions. This is actually not the case and would be wrong
because neither the truncating in libassuan or our escaping is not the
Right Thing. In any case the functions need to be more robust and
comply to the promised interface. Thus the code has been factored out
to a helper function and N has been bumped up correctly and checked in
all cases.
For some uses this changes the behaviour in the error case (i.e. CR or
LF passed): It will now always be C-escaped and not passed to
libassuan which would truncate the line at the first LF.
Reported-by: private_pers
* kbx/keybox-util.c (keybox_set_malloc_hooks): Remove.
(_keybox_malloc, _keybox_calloc, keybox_realloc)
(_keybox_free): Remove.
(keybox_file_rename): Remove. Was not used.
* sm/gpgsm.c (main): Remove call to keybox_set_malloc_hooks.
* kbx/kbxutil.c (main): Ditto.
* kbx/keybox-defs.h: Remove all separate includes. Include util.h.
remove convenience macros.
* common/logging.h (return_if_fail): New. Originally from
keybox-defs.h but now using log_debug.
(return_null_if_fail): Ditto.
(return_val_if_fail): Ditto.
(never_reached): Ditto.
--
Originally the KBX code was written to allow standalone use. However
this required lot of ugliness like separate memory allocators and
such. It also precludes the use of some standard functions from
common due to their use of the common gnupg malloc functions.
Dropping all that makes things easier. Minor disadvantages: the kbx
call done for gpg will now use gcry malloc fucntions and not the
standard malloc functions. This might be a bit slower but removing
them even fixes a possible bug in keybox_tmp_names which is used in
gpg and uses gpg's xfree which is actually gcry_free.
Signed-off-by: Werner Koch <wk@gnupg.org>
* sm/gpgsm.c (main): Allow setting of the default compliance.
* tools/gpgconf-comp.c (gc_options_gpgsm): Add "compliance".
--
This is required so that we can use this option in in gpgconf.conf.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/logging.c: Do not build any code if we can use the gpgrt_log
functions.
(log_logv_with_prefix): Rename to log_logv_prefix and change order of
args so that this function matches its printf like counterpart
gpgrt_logv_prefix. Change all callers.
(log_debug_with_string): Rename to log_debug_string. Change all
callers.
(log_printhex): Move first arg to end so that this function matches
its printf like counterpart gpgrt_log_printhex. Change all callers.
* common/logging.h: Divert to gpgrt/libgpg-error if we can use the
gpgrt_log functions.
(bug_at): Add inline versions if we can use the gpgrt_log functions.
* configure.ac (GPGRT_ENABLE_LOG_MACROS): Add to AH_BOTTOM.
(mycflags): Add -Wno-format-zero-length.
--
This patch enables the use of the log function from libgpgrt (aka
libgpg-error). Instead of checking a version number, we enable them
depending on macros set by recent gpg-error versions. Eventually the
whole divert stuff can be removed.
The -Wno-format-zero-length is required because log_printhex can be
called with an empty format string. Note that this is fully specified
standard C behaviour.
Signed-off-by: Werner Koch <wk@gnupg.org>
* sm/keydb.c (maybe_create_keybox): Open new keybox in bin mode.
--
As the header contains a timestamp we will have the conversion
problems if the keybox is not opened in binary mode.
Signed-off-by: Andre Heinecke <aheinecke@intevation.de>
* sm/certlist.c (gpgsm_find_cert): Add arg allow_ambiguous and use it.
* sm/call-dirmngr.c (inq_certificate): Pass true to ALLOW_AMBIGUOUS
(run_command_inq_cb): Ditto.
* sm/gpgsm.c (main): Pass false.
* sm/server.c (cmd_passwd): Pass false.
--
As described in my report T1644, it is possible that multiple
certificates exist with the same Distinguished Name and the same key.
In this case, verifying S/MIME signatures and other actions fail with
"certificate not found: Ambiguous name". For details see the bug
report.
To circumvent the problem, I am patching GnuPG since 2014 so that in
this case the newest of the ambiguous certificates is used.
This is not an ultimate solution of the problem: You should try every
certificate with the same DN until verification succeeds or until all
certificates fail, and if multiple certificates of a chain are
ambiguous you even have to check every combination. You may even
consider checking the keyUsage attributes of the ambiguous certificates
to reduce the number of combinations.
But in the existing case of the certificates in the German Research
Network (DFN) PKI where the newest one is the valid one and all
ambiguous certificates have the same keyUsage attributes, this patch
has proven to be sufficient over the last three years.
With every GnuPG update, I have adapted the patch, luckily I never
needed to change anything except line numbers.
GnuPG-bug-id: 1644
ChangeLog log written by wk, comment taken from mail. Signed-off line
was missing in the plain diff. However the mail with the patch and
the DCO posted as reply to that mail were both signed.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/pkscreening.c: New.
* common/pkscreening.h: New.
* common/Makefile.am (common_sources): Add them.
* g10/gpg.c (opts): New option --with-key-screening.
* g10/options.h (struct opt): New field with_key_screening.
* g10/keylist.c: Include pkscreening.h.
(print_pk_screening): New.
(list_keyblock_print): Call it.
(print_compliance_flags): Call it.
* sm/gpgsm.c (opts): New option --with-key-screening.
* sm/gpgsm.h (scruct opt): New field with_key_screening.
* sm/keylist.c: Include pkscreening.h.
(print_pk_screening): New.
(print_compliance_flags): Call it. Add new arg cert.
(list_cert_colon): Pass arg cert
(list_cert_std): Call print_pk_screening.
* sm/fingerprint.c (gpgsm_get_rsa_modulus): New.
--
This new option can be used to detect ROCA affected keys. To scan an
entire keyring and print the affected fingerprints use this:
gpg -k --with-key-screening --with-colons | gawk -F: \
'$1~/pub|sub|sec|ssb|crt/ && $18~/\<6001\>/ {found=1;next};
$1=="fpr" && found {print $10}; {found=0}'
The same works for gpgsm. Note that we need gawk due to the "\<" in
the r.e.
Signed-off-by: Werner Koch <wk@gnupg.org>
* doc/Makefile.am: Move qualified.txt into examples.
* doc/qualified.txt: Move into examples, remove trailing spaces.
* doc/examples/README: Document qualified.txt.
* doc/gpgsm.texi: Move qualified.txt from datadir into sysconfdir.
* sm/qualified.c (read_list): Move qualified.txt from datadir into
sysconfdir.
--
The qualified.txt is maintained by Administrator it is a configuration
file. In the past it was a hybrid, provided by package and controlled
by the Administrator, however, it is no longer maintained by package.
Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
* doc/gpgsm.texi, doc/howto-create-a-server-cert.texi: : update
default to 3072 bits.
* sm/certreqgen-ui.c (gpgsm_gencertreq_tty): update default to
3072 bits.
* sm/certreqgen.c (proc_parameters): update default to 3072 bits.
* sm/gpgsm.c (main): print correct default_pubkey_algo.
--
3072-bit RSA is widely considered to be 128-bit-equivalent security.
This is a sensible default in 2017.
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
Gbp-Pq: Topic update-defaults
Gbp-Pq: Name 0014-gpgsm-default-to-3072-bit-keys.patch
* g10/pubkey-enc.c (get_session_key): Bail out if the algo is not
allowed in the current compliance mode.
* sm/decrypt.c (gpgsm_decrypt): Ditto.
--
The idea here is that the owner of the key created a non-compliant key
and later receives a mail encrypted to that key. The sender should
have checked this key too but we can't guarantee that. By hard
failing here the owner of the key will notice that he had created a
non-compliant key and thus has a chance to generate a new compliant
key. In case the compliant criteria changes and the owner wants to
decrypt an old message he can still switch gpg to another compliant
mode.
Fixes-commit: a0d0cbee7654ad7582400efaa92d493cd8e669e9
GnuPG-bug-id: 3308
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>
* g10/encrypt.c (encrypt_crypt): Do not abort for a non-compliant key.
* sm/encrypt.c (gpgsm_encrypt): Ditto.
--
GnuPG-bug-id: 3306
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/compliance.c (gnupg_pk_is_compliant): Remove the Elgamal
signing check. We don't support Elgamal signing at all.
(gnupg_pk_is_allowed) <de-vs>: Revert encryption/decryption for RSA.
Check the curvenames for ECDH.
* g10/pubkey-enc.c (get_session_key): Print only a warning if the key
is not compliant.
* sm/decrypt.c (gpgsm_decrypt): Ditto. Use the same string as in gpg
so that we have only one translation.
--
We always allow decryption and print only a note if the key was not
complaint at the encryption site.
GnuPG-bug-id: 3308
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>
* common/status.h (STATUS_ENCRYPTION_COMPLIANCE_MODE): New.
* g10/encrypt.c (encrypt_crypt): Emit new status code.
* sm/encrypt.c (gpgsm_encrypt): Ditto.
--
This status code allows to report whether an encryption operation was
compliant to de-vs.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/compliance.c (gnupg_pk_is_compliant): Swap P and Q for DSA
check. Explicitly check for allowed ECC algos.
(gnupg_pk_is_allowed): Swap P and Q for DSA check.
* g10/mainproc.c (proc_encrypted): Simplify SYMKEYS check. Replace
assert by debug message.
--
Note that in mainproc.c SYMKEYS is unsigned and thus a greater than 0
condition is surprising because it leads to the assumption SYMKEYS
could be negative. Better use a boolean test.
The assert could have lead to a regression for no good reason. Not
being compliant is better than breaking existing users.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/compliance.c (gnupg_parse_compliance_option): New function.
* common/compliance.h (struct gnupg_compliance_option): New type.
(gnupg_parse_compliance_option): New prototype.
* g10/gpg.c (parse_compliance_option): Remove function.
(compliance_options): New variable.
(main): Adapt callsite.
* sm/gpgsm.c (main): Use the new common function.
* sm/gpgsm.h (opt): New field 'compliance'.
GnuPG-bug-id: 3191
Signed-off-by: Justus Winter <justus@g10code.com>
* common/compliance.c (gnupg_pk_is_compliant): Add DSA with certain
parameters.
(gnupg_cipher_is_compliant): New function.
(gnupg_digest_is_compliant): Likewise.
* common/compliance.h (gnupg_cipher_is_compliant): New prototype.
(gnupg_digest_is_compliant): Likewise.
* common/status.h (STATUS_DECRYPTION_COMPLIANCE_MODE): New status.
(STATUS_VERIFICATION_COMPLIANCE_MODE): Likewise.
* doc/DETAILS: Document the new status lines.
* g10/mainproc.c (proc_encrypted): Compute compliance with CO_DE_VS
and report that using the new status line.
(check_sig_and_print): Likewise.
* sm/decrypt.c (gpgsm_decrypt): Likewise.
* sm/verify.c (gpgsm_verify): Likewise.
--
When decrypting data and verifying signatures, report whether the
operations are in compliance with the criteria for data classified as
VS-NfD. This information will be picked up by the frontend and
presented to the user.
GnuPG-bug-id: 3059
Signed-off-by: Justus Winter <justus@g10code.com>
* common/Makefile.am (common_sources): Add new files.
* common/compliance.c: New file. Move 'gnupg_pk_is_compliant' here,
and tweak it to not rely on types private to gpg.
* common/compliance.h: New file. Move the compliance enum here.
* g10/keylist.c (print_compliance_flags): Adapt callsite.
* g10/main.h (gnupg_pk_is_compliant): Remove prototype.
* g10/misc.c (gnupg_pk_is_compliant): Remove function.
* g10/options.h (opt): Use the new compliance enum.
* sm/keylist.c (print_compliance_flags): Use the common functions.
Signed-off-by: Justus Winter <justus@g10code.com>
* g10/misc.c (gnupg_pk_is_compliant): New.
* g10/keylist.c (print_compliance_flags): New.
(list_keyblock_colon): Call it here.
* sm/keylist.c (print_compliance_flags): New.
(list_cert_colon): Call it here.
--
This patch is to convey information about DE_VS compliant keys to the
caller. The double digit value is used so that parsers do the right
thing and don't just look for a single digit.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/ksba-io-support.c: Include ksba-io-support.h instead of
../sm/gpgsm.h. Include util.h.
(writer_cb_parm_s): Remove const from 'pem_name'.
(gpgsm_destroy_writer): Free 'pem_name'.
(gpgsm_create_reader): Rename to ...
(gnupg_ksba_create_reader): this. Replace args CTRL and
ALLOW_MULTI_PEM by a new arg FLAGS. Change the code to evaluate
FLAGS. Change all callers to pass the FLAGS.
(gpgsm_create_writer): Rename to ...
(gnupg_ksba_create_writer): this. Replace arg CTRL by new arg FLAGS.
Add arg PEM_NAME. Evaluate FLAGS. Store a copy of PEM_NAME. Change
all callers to pass the FLAGS and PEM_NAME.
Signed-off-by: Werner Koch <wk@gnupg.org>
