* sm/gpgsm.c (main): Use gpgrt_fcancel on decryption error if gpgrt
supports this.
* sm/decrypt.c (decrypt_gcm_filter): New.
(gpgsm_decrypt): Use this filter if requested. Check authtag.
* common/compliance.c (gnupg_cipher_is_allowed): Allow GCM for gpgsm
in consumer (decrypt) de-vs mode.
--
Backported-from-master: 4980fb3c6dde8c1dda975e8a36d6086c8456a631
We allow GCM in de-vs mode for decryption although this has not been
evaluation. It is decryption and thus no serious harm may happen.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/compliance.c (get_compliance_cache): New.
(gnupg_rng_is_compliant): Use per mode cache.
(gnupg_gcrypt_is_compliant): Ditto.
--
This addresses the problem tha the check might be called with
different compliance values and thus it should return the
corresponding cached result.
Signed-off-by: Werner Koch <wk@gnupg.org>
Backported from 2.3. Added PGP6 support which was removed from 2.3.
* common/compliance.c (gnupg_gcrypt_is_compliant): New.
(gnupg_rng_is_compliant): Also check library version.
* g10/mainproc.c (proc_encrypted): Use new function.
(check_sig_and_print): Ditto.
* sm/decrypt.c (gpgsm_decrypt): Ditto.
* sm/encrypt.c (gpgsm_encrypt): Ditto.
* sm/verify.c (gpgsm_verify): Ditto
--
This will eventually allow us to declare Libgcrypt 1.9 to be de-vs
compliant. GnuPG can use this information then for its own checks.
As of now GnuPG tests the version of the used library but that is a
bit cumbersome to maintain.
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 90c514868ff5fcf6d39490d4874ac3a31ba9e85f)
* configure.ac (NEED_LIBGCRYPT_VERSION): Require 1.8.
* tools/gpgconf.c (show_version_libgcrypt): Remove conditional case
for Libgcrypt < 1.8.
* common/compliance.c (gnupg_rng_is_compliant): Ditto.
* agent/pksign.c: Ditto.
* agent/gpg-agent.c (thread_init_once): Ditto.
(agent_libgcrypt_progress_cb): Ditto.
* agent/command.c (cmd_getinfo): Ditto.
--
Libgcrypt 1.7 reached end-of-life more than a year ago. Thus there is
no reason to keep backward support for it.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/compliance.h (PK_ALGO_FLAG_RSAPSS): New.
* common/compliance.c (gnupg_pk_is_compliant): Add arg alog_flags and
test rsaPSS. Adjust all callers.
* common/util.c (pubkey_algo_to_string): New.
(gnupg_pk_is_allowed): Ditto.
* sm/misc.c (gpgsm_ksba_cms_get_sig_val): New wrapper function.
(gpgsm_get_hash_algo_from_sigval): New.
* sm/certcheck.c (gpgsm_check_cms_signature): Change type of sigval
arg. Add arg pkalgoflags. Use the PK_ALGO_FLAG_RSAPSS.
* sm/verify.c (gpgsm_verify): Use the new wrapper and new fucntion to
also get the algo flags. Pass algo flags along. Change some of the
info output to be more like current master.
--
Signed-off-by: Werner Koch <wk@gnupg.org>
This backport from master
commit 969abcf40cdfc65f3ee859c5e62889e1a8ccde91
also includes some changes taken from
commit a759fa963a42e0652134130029217270b6d5d00b
(sm: Improve readability of the data verification output.)
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/compliance.c (gnupg_pk_is_allowed): Rework to always allow
verification.
* g10/mainproc.c (check_sig_and_print): Print a con-compliant warning.
* g10/sig-check.c (check_signature2): Use log_error instead of
log_info.
--
We should be able to verify all signatures. So we only print a
warning. That is the same beheavour as for untrusted keys etc.
GnuPG-bug-id: 3311
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/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_{pk,cipher,digest}_is_compliant): Return
false if the module is not initialized.
(gnupg_{pk,cipher,digest}_is_allowed): Return true if the module is
not initialized.
(gnupg_status_compliance_flag): Do not assert that the module is
initialized.
(gnupg_parse_compliance_option): Likewise.
(gnupg_compliance_option_string): Likewise.
--
This implements a default policy for modules not explicitly using the
compliance module. The default policy is to allow all algorithms, but
mark none of them as compliant.
Fixes gpgv.
GnuPG-bug-id: 3210
Signed-off-by: Justus Winter <justus@g10code.com>
* common/compliance.c (gnupg_digest_is_allowed): Don't include
GCRY_MD_WHIRLPOOL because it is not a digest_algo_t.
--
Note that Whirlpool is not used anywhere in gpg or gpgsm.
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>
