* common/openpgpdefs.h (SIGSUBPKT_KEY_BLOCK): New.
* g10/gpg.c (oIncludeKeyBlock): New.
(opts): New option --include-key-block.
(main): Implement.
* g10/options.h (opt): New flag include_key_block.
* g10/parse-packet.c (dump_sig_subpkt): Support SIGSUBPKT_KEY_BLOCK.
(parse_one_sig_subpkt): Ditto.
(can_handle_critical): Ditto.
* g10/sign.c (mk_sig_subpkt_key_block): New.
(write_signature_packets): Call it for data signatures.
--
This patch adds support for a to be proposed OpenPGP ferature:
Introduce the Key Block subpacket to align OpenPGP with CMS.
This new subpacket may be used similar to the CertificateSet of
CMS (RFC-5652) and thus allows to start encrypted communication
after having received a signed message. In practice a stripped down
version of the key should be including having only the key material
and the self-signatures which are really useful and shall be used by
the recipient to reply encrypted.
#### Key Block
(1 octet with value 0, N octets of key data)
This subpacket MAY be used to convey key data along with a signature
of class 0x00, 0x01, or 0x02. It MUST contain the key used to create
the signature; either as the primary key or as a subkey. The key
SHOULD contain a primary or subkey capable of encryption and the
entire key must be a valid OpenPGP key including at least one User ID
packet and the corresponding self-signatures.
Implementations MUST ignore this subpacket if the first octet does not
have a value of zero or if the key data does not represent a valid
transferable public key.
GnuPG-bug-id: 4856
Signed-off-by: Werner Koch <wk@gnupg.org>
--
Resolved Conflicts:
* common/asshelp.c: Keep the new code in master for spawing under
Windows.
* g10/Makefile.am: Keep all new file.
* g10/photoid.c: Pass CTRL to pct_expando.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/gpg.c (oUseKeyboxd,oKeyboxdProgram): New consts.
(opts): New options --use-keyboxd and --keyboxd-program.
(main): Implement them.
* g10/keydb.c: Move some defs out to ...
* g10/keydb-private.h: new file.
* g10/keydb.c: prefix function names with "internal" and move original
functions to ...
* g10/call-keyboxd.c: new file. Divert to the internal fucntion if
--use-keyboxd is used. Add a CTRL arg to most fucntions and change
all callers.
* g10/Makefile.am (common_source): Add new files.
(noinst_PROGRAMS): Do bot build gpgcompose.
--
Note that this is just the framework with only a basic implementation
of searching via keyboxd.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/openpgpdefs.h (SIGSUBPKT_ATTST_SIGS): New.
* g10/keydb.h (IS_ATTST_SIGS): New.
(IS_CERT): Include the new one.
* g10/sign.c (mk_notation_policy_etc): Do not put notations into
attestation key signatures.
* g10/parse-packet.c (dump_sig_subpkt): Add new arg digest_algo.
Print the attestation sigs.
(parse_one_sig_subpkt): Support SIGSUBPKT_ATTST_SIGS.
(can_handle_critical): Ditto.
(enum_sig_subpkt): Pass digest algo to dump_sig_subpkt.
--
This change allows to list the new subpacket with --list-packets.
Example output:
:signature packet: algo 22, keyid C694723A1370EAB1
version 4, created 1567097576, md5len 0, sigclass 0x16
digest algo 8, begin of digest ff 0c
hashed subpkt 2 len 4 (sig created 2019-08-29)
hashed subpkt 37 len 32 (attst-sigs: 1
A794C6E9CCFE2F34C67E07[...])
hashed subpkt 33 len 21 (issuer fpr v4 156A3872[...])
subpkt 16 len 8 (issuer key ID C694723A1370EAB1)
data: [256 bits]
data: [256 bits]
GnuPG-bug-id: 4694
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/sign.c (update_keysig_packet): Convert digest algo when needed.
--
Several gpg commands try to keep most properties of a key signature
when updating (i.e. creating a new version of a key signature). This
included the use of the current hash-algorithm. This patch changes
this so that SHA-1 or RMD160 are replaced by SHA-256 if
possible (i.e. for RSA signatures). Affected commands are for example
--quick-set-expire and --quick-set-primary-uid.
GnuPG-bug-id: 4508
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/sign.c (make_keysig_packet): Remove obsolete arg diegst_algo
which was always passed as 0. Change all callers.
* g10/gpgcompose.c (signature): Warn when trying to set a digest algo.
--
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/build-packet.c (gpg_mpi_write): New optional arg
R_NWRITTEN. Allow NULL for OUT. Change all callers.
(do_key): Support v5 keys.
(build_sig_subpkt_from_sig): Support 32 byte fingerprints.
* g10/parse-packet.c (parse_signature): First try to set the keyid
from the issuer fingerprint.
(parse_key): Support v5 keys.
(create_gpg_control): Better make sure to always allocate the static
size of the struct in case future compilers print warnings.
* g10/keyid.c (hash_public_key): Add v5 support.
(keyid_from_pk): Ditto.
(keyid_from_fingerprint): Ditto.
(fingerprint_from_pk): Ditto.
* g10/keygen.c (KEYGEN_FLAG_CREATE_V5_KEY): New.
(pVERSION, pSUBVERSION): New.
(add_feature_v5): New.
(keygen_upd_std_prefs): Call it.
(do_create_from_keygrip): Add arg keygen_flags and support the v5
flag.
(common_gen): Support the v5 flag.
(parse_key_parameter_part): New flags v4 and v5.
(parse_key_parameter_string): Add args for version and subversion.
(read_parameter_file): New keywords "Key-Version" and
"Subkey-Version".
(quickgen_set_para): Add arg 'version'.
(quick_generate_keypair, generate_keypair): Support version parms.
(do_generate_keypair): Support v5 key flag.
(generate_subkeypair): Ditto.
(generate_card_subkeypair): Preparse for keyflags.
(gen_card_key): Ditto.
* g10/sig-check.c (check_signature2): Add args extrahash and
extrahashlen.
(check_signature_end): Ditto.
(check_signature_end_simple): Ditto. Use them.
* g10/mainproc.c (proc_plaintext): Put extra hash infor into the
control packet.
(do_check_sig): Add args extrahas and extrahashlen and pass them on.
(issuer_fpr_raw): Support 32 byte fingerprint.
(check_sig_and_print): get extra hash data and pass it on.
--
Note that this is only basic support and requires more fine
tuning/fixing.
Signed-off-by: Werner Koch <wk@gnupg.org>
* configure.ac (AC_CHECK_SIZEOF): Test size_t.
* g10/sig-check.c (check_signature_end_simple): Support v5 signatures
as per current rfc4880bis. For correctness also allow for N > 2^32.
* g10/sign.c (pt_extra_hash_data_t): New.
(hash_sigversion_to_magic): New arg EXTRAHASH.
(write_plaintext_packet): New arg R_EXTRAHASH.
(write_signature_packets): Pass EXTRAHASH.
(sign_file): Ditto.
(sign_symencrypt_file): Ditto.
--
Take care: The code path for v5 sigs has not yet been tested.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/mbox-util.c (mailbox_from_userid): Add arg subaddress and
implement. Change all callers to pass false for it.
* common/t-mbox-util.c (run_mbox_no_sub_test): New.
(run_filter): Add arg no_sub.
(main): Call new test and add option --no-sub.
--
Some stats: In the about 5300000 keys on the SKS servers we found 3055
unique mailboxes with a '+' in it. After removing leading and
trailing '+' as well as multiple '+' (e.g. "c++" or "foo+bar+baz")
2697 were left which seem to be valid sub-addresses.
To filter mailboxes out from a line delimited list with
user-ids (e.g. an SQL output), the command
t-mbox-util --verbose --filter
can be used; to output w/o sub-addresses add --no-sub.
GnuPG-bug-id: 4200
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/packet.h (PKT_symkey_enc): Add field aead_algo.
* g10/build-packet.c (do_symkey_enc): Support version 5 packets.
* g10/parse-packet.c (parse_symkeyenc): Ditto.
* g10/encrypt.c (encrypt_symmetric): Force using a random session
key in AEAD mode.
(encrypt_seskey): Add and support arg aead_algo.
(write_symkey_enc): Ditto.
(encrypt_simple): Adjust accordingly.
(encrypt_filter): Ditto.
* g10/gpgcompose.c (sk_esk): For now call encrypt_seskey without AEAD
support.
* g10/mainproc.c (symkey_decrypt_seskey): Support AEAD. Nver call BUG
but return an error.
(proc_symkey_enc): Call symkey_decrypt_seskey in a bug compatible way.
* g10/import.c (check_prefs): Check AEAD preferences.
* g10/keyedit.c (show_prefs): Print AEAD preferences.
--
For easier debugging this patch also changes some diagnostics to also
print the encryption mode with the cipher algorithm.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/pkclist.c (select_aead_from_pklist): Return the AEAD_algo.
* g10/encrypt.c (use_aead): Return the AEAD algo.
(encrypt_simple): Adjust for this change.
(encrypt_crypt): Ditto.
(encrypt_filter): Ditto.
* g10/sign.c (sign_symencrypt_file): Ditto.
* g10/misc.c (MY_GCRY_CIPHER_MODE_EAX): New.
(openpgp_aead_algo_info): New.
* g10/cipher-aead.c (MY_GCRY_CIPHER_MODE_EAX): Remove.
(write_header): Use new fucntion.
* g10/decrypt-data.c (MY_GCRY_CIPHER_MODE_EAX): Remove.
(decrypt_data): Use new function. Also allow for chunkbytes other
than 10.
--
Note that other chunk bytes than 10 and in particular 0 (64 byte
chunks) have not yet been tested.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/cipher.c (cipher_filter): Rename to cipher_filter_cfb.
* g10/cipher-aead.c: New. Right now only with a stub function.
* g10/Makefile.am (gpg_sources): Add file.
* g10/encrypt.c (encrypt_simple): Push either cipher_filter_cfb or
cipher_filter_aead.
(encrypt_crypt): Ditto.
(encrypt_filter): Ditto.
* g10/sign.c (sign_symencrypt_file): Ditto.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/dek.h (DEK): Turn fields use_mdc, algo_printed and symmetric
into single bit vars. Make sure they are always set to 1 or 0.
(DEK): New field use_aead.
* g10/options.h (struct opt): New field force_aead.
* g10/pkclist.c (select_aead_from_pklist): New.
* g10/gpg.c (oForceAEAD): New const.
(opts): New options "--force-aead".
(main): Set new option.
* g10/encrypt.c (use_aead): New.
(encrypt_simple): Implement new flags DEK.use_aead.
(encrypt_crypt): Ditto.
(encrypt_filter): Ditto.
* g10/sign.c (sign_symencrypt_file): Ditto.
--
This patch should be enough to detect whether AEAD can be used.
Not tested.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/main.h (open_outfile): New parameter NO_OUTFILE.
* g10/openfile.c (open_outfile): New parameter NO_OUTFILE. If given,
never use opt.outfile.
* g10/revoke.c (create_revocation): If FILENAME is true, also set
NO_OUTFILE to true (for standard revocation certificates).
* g10/dearmor.c, g10/encrypt.c, g10/export.c, g10/revoke.c,
g10/sign.c: Adjust all other callers.
Signed-off-by: Marcus Brinkmann <mb@g10code.com>
GnuPG-bug-id: 3015
* 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>
--
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/packet.h (struct parse_packet_ctx_s): Add fields LAST_PKT and
FREE_LAST_PKT.
(init_parse_packet): Clear them.
(deinit_parse_packet): New macro. Change all users if
init_parse_packet to also call this macro.
* g10/free-packet.c (free_packet): Add arg PARSECTX and handle shallow
packet copies in the context. Change all callers.
* g10/parse-packet.c (parse): Store certain packets in the parse
context.
--
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/sign.c (write_signature_packets): Free SIG. Also replace
xcalloc by xtrycalloc.
--
If do_sign fails SIG was not released. Note that in the good case SIG
is transferred to PKT and freed by free_packet.
Reported-by: Stephan Müller
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/options.h (struct opt): Add field 'sender_list'.
* g10/gpg.c: Include mbox-util.h.
(oSender): New.
(opts): Add option "--sender".
(main): Parse option.
--
This option will eventually be used for more advanced purposes.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/passphrase.c (passphrase_get): Remove arg KEYID. Change arg
MODE to NOCACHE.
(passphrase_to_dek): Remove args KEYID and PUBKEY_ALGO. Split arg
MODE into CREATE and NOCACHE. Change all callers and adjust stubs.
(passphrase_clear_cache): Remove args KEYID and ALGO. They are not
used. Change caller.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/gpg.c (oMimemode): New.
(opts): Add --mimemode.
(main): Use --mimemode only in rfc4880bis compliance mode.
* g10/options.h (struct opt): Add field "mimemode".
* g10/build-packet.c (do_plaintext): Allow for mode 'm'.
* g10/encrypt.c (encrypt_simple, encrypt_crypt): Use 'm' if requested.
* g10/plaintext.c (handle_plaintext): Handle 'm' mode.
* g10/sign.c (write_plaintext_packet): Handle 'm' mode.
(sign_file, sign_symencrypt_file): Use 'm' if requested.
--
Thsi patch prepares for a proposed change in RFC4880bis to support a
MIME flag. A literal data packet with the mime flag set is handled
like a 't' or 'u' but CR are not removed. The PLAINTEXT status line
will also indicate a MIME content.
If --mimemode is used without --rfc4880bis 't' will be used.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/openpgpdefs.h (SIGSUBPKT_ISSUER_FPR): New.
* g10/build-packet.c (build_sig_subpkt_from_sig): Add arg PKSK and
insert the issuer fpr if needed.
* g10/sign.c (write_signature_packets): Pass signing key.
(make_keysig_packet): Ditto.
(update_keysig_packet): Ditto.
* g10/parse-packet.c (dump_sig_subpkt): Print issuer fpr.
(parse_one_sig_subpkt): Detect issuer fpr.
(can_handle_critical): Add issuer fpr.
* g10/mainproc.c (check_sig_and_print): Try to get key via fingerprint.
* g10/gpgv.c (keyserver_import_fprint): New stub.
* g10/test-stubs.c (keyserver_import_fprint): New stub.
--
This support is enabled with the --rfc4880bis option and intended to
test to recently proposed issuer fpr.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/gpg.c (oDisableSignerUID): New.
(opts): New option '--disable-signer-uid'.
(main): Set option.
* g10/options.h (opt): Add field flags.disable_signer_uid.
* g10/sign.c: Include mbox-util.h.
(mk_notation_policy_etc): Embed the signer's uid.
* g10/mainproc.c (check_sig_and_print): Do not use WKD for auto key
retrieval if --disable-signer-uid is used.
--
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/call-agent.c, g10/call-agent.h (agent_get_keyinfo): add
r_cleartext parameter to report whether a key is stored without
passphrase protection.
* g10/gpgv.c, g10/test-stubs.c: augment dummy agent_get_keyinfo to
match new API.
* g10/export.c, g10/keyedit.c, g10/keygen.c, g10/keylist.c,
g10/sign.c: pass NULL to agent_get_keyinfo since we do not yet
need to know whether agent is passphrase-protected.
--
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
* g10/pkclist.c (build_pk_list): Remove parameter use, which is always
called set to PUBKEY_USAGE_ENC. Update callers.
--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
* g10/encrypt.c (use_mdc): Make it a global func.
* g10/sign.c (sign_symencrypt_file): Use that function to decide
whether to use an MDC.
* tests/openpgp/conventional-mdc.test: Add a simple test case.
--
We used --force-mdc in sign+symenc mode (-cs) only with --force-mdc.
That broke our assumption from commit 625e292 (GnuPG 2.1.9) that all
uses of modern ciphers are using MDC.
Reported-by: Ben Kibbey <bjk@luxsci.net>
Signed-off-by: Werner Koch <wk@gnupg.org>
