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Commit Graph

2119 Commits

Author SHA1 Message Date
Werner Koch
2cd35df5db
gpg,sm: New option --request-origin.
* 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>
2018-03-23 09:06:20 +01:00
Werner Koch
165bc38cef
gpg: Implement --dry-run for --passwd.
* g10/keyedit.c (change_passphrase): Take care of --dry-run.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-03-22 10:23:35 +01:00
NIIBE Yutaka
0152ba7c98 scd: Support KDF DO setup.
* g10/call-agent.c (learn_status_cb): Parse the capability for KDF.
* g10/card-util.c (gen_kdf_data, kdf_setup): New.
(card_edit): New admin command cmdKDFSETUP to call kdf_setup.
* scd/app-openpgp.c (do_getattr): Emit KDF capability.

--

GnuPG-bug-id: 3823
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-03-22 15:50:31 +09:00
Werner Koch
34ec012561
doc: Typo fix in comment.
--
2018-03-21 19:45:31 +01:00
Werner Koch
983f7b2acb
gpg: Fix out-of-bound read in subpacket enumeration
* g10/parse-packet.c (enum_sig_subpkt): Check buflen before reading
the type octet.  Print diagnostic.
--

If the final subpacket has only a length header evaluating to zero and
missing the type octet, a read could happen right behind the buffer.
Valgrind detected this.  Fix is obvious.  Note that the further
parsing of the subpacket is still okay because it always checks the
length.  Note further that --list-packets uses a different code path
and already reported an error.

Reported-by: Philippe Antoine

He provided a test file copied below.  Running "gpg -v --verify" on it
triggered the bug.

-----BEGIN PGP ARMORED FILE-----
Comment: Use "gpg --dearmor" for unpacking
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=qYZP
-----END PGP ARMORED FILE-----

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-03-21 19:43:33 +01:00
NIIBE Yutaka
2c85e202bc scd: Better user interaction for factory-reset.
* g10/card-util.c (factory_reset): Dummy PIN size is now 32-byte.
Connect the card again at the last step.

--

Before the change, a user has to quit the session to continue.  Now,
it is possible to type RET in the session and see if it's really done.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-03-16 11:27:33 +09:00
NIIBE Yutaka
334b948981 gpg: Fix build on Windows.
--

WIN32_LEAN_AND_MEAN is required to avoid definitions of grp1, grp2,
and grp3 in dlgs.h, which is included by windows.h.

Fixes-commit: fd595c9d36
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-03-08 14:08:51 +09:00
Werner Koch
f574aabeeb
Merge branch 'STABLE-BRANCH-2-2' into wk-master 2018-03-06 16:26:26 +01:00
Werner Koch
bf43b39c05
gpg: Fix regression in last --card-status patch
--

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>
2018-03-01 19:10:10 +01:00
Werner Koch
fd595c9d36
gpg: Print the keygrip with --card-status
* 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>
2018-03-01 19:03:23 +01:00
Werner Koch
f2c09203b9
gpg: Avoid writing a zero length last chunk in AEAD mode.
* g10/cipher-aead.c (write_header): Do not call set_nonce_and_ad.
(write_final_chunk): Do not increase chunkindex.
(do_flush): Call set_nonce_and_ad immediately before the first
encryption of a chunk.  Bump up the chunkindex after writing the tag.
(do_free): Do not insert a zero length last chunk.
* g10/decrypt-data.c (aead_underflow): Fix the corresponding bug.
--

This fixes a bug in writing a zero length last chunk right before the
final chunk (which has by design a zero length).  We also need to
adjust the decryption part because that assumed this zero length last
chunk.

Note that we use the term "last chunk" for the chunk which directly
precedes the "final chunk" which ends the entire encryption.

GnuPG-bug-id: 3774
Signed-off-by: Werner Koch <wk@gnupg.org>
2018-02-28 09:39:57 +01:00
Werner Koch
047506a03d
gpg: Merge two functions in cipher-aead.c
* g10/cipher-aead.c (set_nonce, set_additional_data): Merge into ...
(set_nonce_and_ad): new function.
(write_auth_tag): Print error message here.
(do_flush): Rename var newchunk to finalize.
--

There is no need to have separate functions here.  We should also
print a error message for writing the final tag.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-02-28 08:48:48 +01:00
Werner Koch
618b86325f
gpg: Simplify the AEAD decryption function.
* g10/decrypt-data.c (aead_set_nonce, aead_set_ad): Merge into ...
(aead_set_nonce_and_ad): new single function.  Change callers.
(decrypt_data): Do not set the nonce and ad here.
(aead_underflow): Get rid of the LAST_CHUNK_DONE hack.
--

The main change here is that we now re-init the context only right
before we decrypt and not after a checktag.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-02-27 21:11:34 +01:00
Werner Koch
ad989373f1
gpg: Factor common code out of the AEAD decryption function.
* g10/decrypt-data.c (aead_underflow): Factor reading and checking
code code out to ...
(fill_buffer, aead_checktag): new functions.
--

Here is a simple test script to check against a set of encrypted files
with naming convention like "symenc-aead-eax-c6-56.asc"

# ------------------------ >8 ------------------------
set -e
GPG=../g10/gpg
for file in "$@"; do
  echo "${file##*/}" | ( IFS=- read dummy1 dummy2 mode cbyte len rest
  len="${len%.*}"
  cbyte="${cbyte#c}"
  [ "$dummy1" != "symenc" -o "$dummy2" != "aead" ] && continue
  echo "checking mode=$mode chunkbyte=$cbyte length=$len"
  if ! $GPG --no-options --rfc4880bis --batch --passphrase "abc" \
             -d < $file >tmp.plain 2>/dev/null; then
      echo "Decryption failed for $file" >&2
      exit 2
  fi
  plainlen=$(wc -c <tmp.plain)
  if [ $plainlen -ne $len ]; then
      echo "Plaintext length mismatch for $file (want=$len have=$plainlen)" >&2
      exit 2
  fi

  )
done
echo "all files are okay" >&2
# ------------------------ 8< ------------------------

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-02-27 20:19:32 +01:00
Werner Koch
b703ba725d
gpg: Rename cipher.c to cipher-cfb.c
* g10/cipher.c: Rename to ...
* g10/cipher-cfb.c: this.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-02-27 13:57:57 +01:00
Werner Koch
ebb0fcf6e0
gpg: Fix corner cases in AEAD encryption.
* g10/cipher-aead.c (write_final_chunk): Do not bump up the chunk
index if the previous chunk was empty.
* g10/decrypt-data.c (aead_underflow): Likewise.  Also handle a other
corner cases.  Add more debug output.
--

GnuPG-bug-id: 3774

This fixes the reported case when the encrypted data is a multiple of
the chunk size.  Then the chunk index for the final chunk was wrongly
incremented by 2.  The actual fix makes use of the fact that the
current dfx->CHUNKLEN is 0 in this case.  There is also some other
reorganizing to help with debugging.  The thing seems to work now but
the code is not very clean - should be reworked.  Creating test files
can be done with this script:

--8<---------------cut here---------------start------------->8---
csize=6
for len in 0 55 56 57; do
   awk </dev/null -v i=$len 'BEGIN{while(i){i--;printf"~"}}' \
     | gpg --no-options -v --rfc4880bis --batch --passphrase "abc" \
           --s2k-count 1025 --s2k-digest-algo sha256 -z0 \
           --force-aead --aead-algo eax --cipher aes -a \
           --chunk-size $csize -c >symenc-aead-eax-c$csize-$len.asc
done
--8<---------------cut here---------------end--------------->8---

A LEN of 56 triggered the bug which can be seen by looking at the
"authdata:" line in the --debug=crypt,filter output.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-02-27 13:53:52 +01:00
Werner Koch
cbc7bacf2f
gpg: Try to mitigate the problem of wrong CFB symkey passphrases.
* g10/mainproc.c (symkey_decrypt_seskey): Check for a valid algo.
--

GnuPG-bug-id: 3795
Signed-off-by: Werner Koch <wk@gnupg.org>
2018-02-23 10:49:19 +01:00
Werner Koch
20539ea5ca
Merge branch 'STABLE-BRANCH-2-2' 2018-02-22 16:19:56 +01:00
Werner Koch
b375d50ee4
gpg: Don't let gpg return failure on an invalid packet in a keyblock.
* g10/keydb.c (parse_keyblock_image): Use log_info instead of
log_error for skipped packets.
* g10/keyring.c (keyring_get_keyblock): Ditto.
--

log_info should be sufficient and makes this more robust.  Some
tools (e.g. Enigmail) are too picky on return codes from gpg.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-02-22 14:23:01 +01:00
NIIBE Yutaka
88e766d391
g10: Select a secret key by checking availability under gpg-agent.
* g10/getkey.c (finish_lookup): Add WANT_SECRET argument to confirm
by agent_probe_secret_key.
(get_pubkey_fromfile, lookup): Supply WANT_SECRET argument.

--

GnuPG-bug-id: 1967
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit 0a76611294)
2018-02-22 10:42:42 +01:00
NIIBE Yutaka
ca138d5bf3 gpg: Fix reversed messages for --only-sign-text-ids.
* g10/keyedit.c (keyedit_menu): Fix messages.

--

GnuPG-bug-id: 3787
Fixes-commit: a74aeb5dae
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-02-15 14:22:06 +09:00
Werner Koch
8305739fe8
gpg: Fix packet length checking in symkeyenc parser.
* g10/parse-packet.c (parse_symkeyenc): Move error printing to the
end.  Add additional check to cope for the 0je extra bytes needed for
AEAD.
--

Fixes-commit: 9aab9167bc
GnuPG-bug-id: 3780
2018-02-06 17:37:27 +01:00
Werner Koch
f98e193c84
gpg: Update list of card vendors from master
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-02-01 12:05:19 +01:00
Werner Koch
26c900a8f0
Add a new OpenPGP card vendor.
--
2018-02-01 12:02:13 +01:00
Werner Koch
303310d05e
gpg: Rename a misnomed arg in open_outfile.
* g10/openfile.c (open_outfile): Rename inp_fd to out_fd.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-28 18:59:18 +01:00
Werner Koch
149369a92b
Merge branch 'STABLE-BRANCH-2-2' into master
Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-25 16:58:29 +01:00
Werner Koch
db7661b5a2
gpg: New maintainer option --debug-set-iobuf-size.
* g10/gpg.c (opts): Add new option.
(opt_set_iobuf_size): New var.
(set_debug): Set the option.
* tests/openpgp/armor.scm: Use this option to revert the buffer size
to the one which used to exhibit the tested bugs.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-24 18:38:20 +01:00
Werner Koch
ff1bdc23d9
gpg: Fix AEAD encryption for chunk sizes other than 64 KiB.
* g10/cipher-aead.c (do_flush): Init ERR.  Fix remaining chunklen
computation.
(do_free): Add dummy encryption.  Close the cipher handle.
* g10/decrypt-data.c (aead_underflow): Rewrite.
--

Until we have integrated test into the test suite extensive tests can
also be done with a script like this:

--8<---------------cut here---------------start------------->8---
#!/bin/sh

set -e
GPG="../g10/gpg --rfc4880bis --pinentry-mode=loopback"
GPG="$GPG --passphrase abc --batch"
MKTDATA="$HOME/b/gnupg-2.0/tools/mk-tdata"

for chunksize in 6 7 12 13 14 30; do
for count in $(seq 1 200) $(seq 8100 8200) \
             $(seq 16350 16400) $(seq 20000 20100); do
  if [ ! -f "testfile-$count" ]; then
    $MKTDATA $count >"testfile-$count"
  fi
  echo "testing chunk size 2^$chunksize with $count bytes"
  $GPG --force-aead --aead-algo ocb --s2k-mode 0 --cipher AES -v -z 0 \
      -c --chunk-size $chunksize \
       <"testfile-$count" >"testfile-$count.gpg" 2>/dev/null
  $GPG -vd <"testfile-$count.gpg" >"testfile-$count.out" 2>/dev/null
  if ! cmp "testfile-$count" "testfile-$count.out"; then
    echo "FAILED comparing count $count" >&2
    exit 1
  fi
done
done
echo All good
--8<---------------cut here---------------end--------------->8---

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-24 13:45:05 +01:00
Werner Koch
83a15fa88e
gpg: Rename a variable in decrypt-data for clarity.
* g10/decrypt-data.c (decode_filter_context_s): Rename field 'defer'
to 'holdback' and replace 'defer_filled' flag into 'holdbacklen'.
Change all users.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-24 08:59:06 +01:00
Werner Koch
f3ef8b0dca
gpg: New option --chunk-size.
* g10/gpg.c (opts): New option --chunk-size.
(oChunkSize): New const.
(build_list_aead_test_algo, build_list_aead_algo_name): New.
(my_strusage): List AEAD algos.
(main): Implement --chunk-size..
* g10/options.h (struct opt): Add field 'chunk_size'.
(DBG_IPC): Remove duplicated macro.
* g10/main.h (DEFAULT_AEAD_ALGO): Depend on Libgcrypt version.
* g10/misc.c (openpgp_aead_test_algo): Ditto.

* g10/cipher-aead.c: Silence if not in debug mode.
* g10/decrypt-data.c: Ditto.
--

And that new option immediatley revealed bugs in our chunking code :-(.
2018-01-23 19:08:16 +01:00
Werner Koch
112e02ee89
gpg: Copy the AEAD prefs to the user ID struct.
* g10/getkey.c (fixup_uidnode): Copy the AEAD prefs.
--

With this patch AEAD preferences are now properly created and
displayed.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-23 12:51:38 +01:00
Werner Koch
278d874656
gpg: Clear the symmetric passphrase cache for encrypted session keys.
* g10/mainproc.c (proc_symkey_enc): Clear the symmetric key cache on
error.
(proc_encrypted): Need to take are of the checksum error.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-23 12:08:02 +01:00
Werner Koch
9aab9167bc
gpg: Implement AEAD for SKESK packets.
* 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>
2018-01-23 12:07:57 +01:00
Werner Koch
da3015e3c0
gpg: Unify AEAD parameter retrieval.
* 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>
2018-01-22 16:50:21 +01:00
Werner Koch
0131d4369a
gpg: Refactor function encrypt_seskey.
* g10/encrypt.c (encrypt_seskey): Allocate the buffer for the
encrypted key and returns that buffer and its length.
(encrypt_simple): Adjust for above change.
(write_symkey_enc): Ditto.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-22 15:50:24 +01:00
Werner Koch
7356d6ec50
gpg: Support EAX if for latest Libgcrypt.
* g10/cipher-aead.c (MY_GCRY_CIPHER_MODE_EAX): New.
(write_header): Use it.
* g10/decrypt-data.c (MY_GCRY_CIPHER_MODE_EAX): New.
(decrypt_data): Use it.
* g10/misc.c (openpgp_aead_test_algo): Allow EAX.
--

This allows the use of EAX when the latest Libgcrypt master is used.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-21 17:00:27 +01:00
Werner Koch
3f4ca85cb0
gpg: First take on PKT_ENCRYPTED_AEAD.
* common/openpgpdefs.h (PKT_ENCRYPTED_AEAD): New const.
* g10/dek.h (DEK): Increase size of use_aead to 4 bits.
* g10/filter.h (cipher_filter_context_t):  Add new fields for AEAD.
* g10/packet.h (PKT_encrypted): Add fields aead_algo, cipher_algo, and
chunkbyte.
* g10/build-packet.c (do_encrypted_aead): New.
(build_packet): Call it.
* g10/parse-packet.c (dump_sig_subpkt): Handle SIGSUBPKT_PREF_AEAD.
(parse_one_sig_subpkt, can_handle_critical): Ditto.
(parse_encrypted): Clear new PKT_ENCRYPTED fields.
(parse_encrypted_aead): New.
(parse): Call it.
* g10/gpg.c (main): Take care of --rfc4880bis option when checking
compliance.
* g10/cipher-aead.c: Replace the stub by real code.
* g10/decrypt-data.c (decode_filter_ctx_t): Add fields for use with
AEAD.
(aead_set_nonce): New.
(aead_set_ad): New.
(decrypt_data): Support AEAD.
(aead_underflow): New.
(aead_decode_filter): New.
* g10/encrypt.c (use_aead): Make that new fucntion work.
(encrypt_simple): Use default_aead_algo() instead of EAX.
* g10/mainproc.c (proc_encrypted): Support AEAD.
(do_proc_packets): Support PKT_ENCRYPTED_AEAD.
--

This code has seen only a very few manual tests.  Encrypting always
uses a 64k chunks and decryption has not been tested with larger
chunks.  Those small chunks make debugging much faster.

Tests can be done using:

  gpg --rfc4880bis --pinentry-mode=loopback --passphrase abc \
      --force-aead --aead-algo ocb --s2k-mode 0 --cipher AES \
      -v -z 0 --status-fd 2 -c <INFILE >OUTFILE

and

  gpg --rfc4880bis --pinentry-mode=loopback --passphrase=abc \
      --status-fd 2 -v -d <INFILE >OUTFILE

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-21 16:30:53 +01:00
Werner Koch
e1e35db510
gpg: Fix the use of future-default with --quick-add-key.
* g10/keygen.c (parse_key_parameter_part): Add arg clear_cert.
(parse_key_parameter_string): Add arg suggested_use and implement
fallback.  Change callers to pass 0 for new arg.
(parse_algo_usage_expire): Pass the parsed USAGESTR to
parse_key_parameter_string so that it can use it in case a subkey is
to be created.
--

The problem here was that future-default gives the primary and subkey
algorithm.  However, when using future-default for adding a key, the
second part was always used which is for encryption.  If the caller
now wanted to create a signing subkey using the future-default
parameters this did not worked.

  gpg --batch --passphrase "" --quick-add-key FPR future-default encr

aready worked as did

  gpg --batch --passphrase "" --quick-add-key FPR ed25519 sign

but

  gpg --batch --passphrase "" --quick-add-key FPR future-default sign

does only work with this fix.

GnuPG-bug-id: 3747
Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-18 13:39:19 +01:00
Werner Koch
81d71818d0
gpg: Add stub function for encrypting AEAD.
* 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>
2018-01-10 17:33:50 +01:00
Werner Koch
4e2ba546cd
gpg: New option --force-aead
* 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>
2018-01-10 17:07:11 +01:00
Werner Koch
8217cd4936
gpg: Add option and preference framework for AEAD.
* common/openpgpdefs.h (aead_algo_t): New.
(SIGSUBPKT_PREF_AEAD): New.
* g10/gpg.c (oAEADAlgo, oPersonalAEADPreferences): New.
(opts): New options --aead-algo and --personal-aead-preferences.
(set_compliance_option): Clar aead algo.
(main): Parse and check the new options
* g10/options.h (struct opt): Add fields def_aead_algo and
personal_aead_prefs.
* g10/packet.h (PREFTYPE_AEAD): New enum value.
(PKT_user_id): Add field flags.aead.
(PKT_public_key): Add field flags.aead.
* g10/pkclist.c (select_algo_from_prefs): Support PREFTYPE_AEAD.
* g10/getkey.c (fixup_uidnode): Set AEAD flag.
(merge_selfsigs): Ditto.
* g10/kbnode.c (dump_kbnode): Show aead flag.
* g10/keyedit.c (show_prefs): Ditto.
(show_key_with_all_names_colon): Ditto.
* g10/keygen.c (aead_presf, n_aead_prefs): New vars.
(set_one_pref): Suppport PREFTYPE_AEAD.
(keygen_set_std_prefs): Parse AEAD preferences.
(keygen_get_std_prefs): Ditto.
(add_feature_aead): New.
(keygen_upd_std_prefs): Call that and build AEAD pref  packet.
* g10/main.h (DEFAULT_AEAD_ALGO): New const.
* g10/misc.c (openpgp_aead_test_algo): New.
(openpgp_aead_algo_name): New.
(string_to_aead_algo): New.
(default_aead_algo): New.
--

This is only used in --rfc4880bis mode and not really tested.

Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-10 11:51:03 +01:00
Werner Koch
339b3301ee
gpg: Print all keys with --decrypt --list-only.
* g10/mainproc.c (proc_pubkey_enc): Use dedicated error code for
list-only and put the key into PKENC_LIST.
(print_pkenc_list): Take care of the new error code.
--

If the secret keys exist in --list-only mode it was not printed in
--list-only mode.

GnuPG-bug-id: 3718
Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-08 09:30:31 +01:00
Werner Koch
4d3c500f47
gpg: Allow "futuredefault" as alias for "future-default".
* g10/keygen.c (parse_key_parameter_string): Allow "futuredefault" and
use case-insensitive matching
(quick_generate_keypair): Ditto.
(parse_algo_usage_expire): Ditto.
--

The man page is sometimes rendered in a way that the hyphen may be
not be considered as part of the string.  And while at it we also
allow case-insensitivity.

GnuPG-bug-id: 3655
Signed-off-by: Werner Koch <wk@gnupg.org>
2018-01-01 14:59:30 +01:00
Werner Koch
412bb7a801
gpg: Allow the use of "cv25519" and "ed25519" in the keygen parms.
* g10/keygen.c (gen_ecc): Map curve names.
--

See
https://lists.gnupg.org/pipermail/gnupg-users/2017-December/059619.html

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-12-29 20:18:20 +01:00
Werner Koch
c817e75028
Merge branch 'STABLE-BRANCH-2-2' into master
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-12-18 16:42:59 +01:00
Werner Koch
416cf9e9be
gpg: Print a warning for too much data encrypted with 3DES et al.
* g10/filter.h (cipher_filter_context_t): Remove unused filed
'create_mdc'.  Turn field 'header' into a bit field.  Add new fields
'short_blklen_warn' and 'short_blklen_count'.
* g10/cipher.c (write_header): Print a warning if MDC is not used.
(cipher_filter): Print a warning for long messages encrypted with a
short block length algorithm.
--

Note that to test this warning in a reliable way compression needs to
be disabled.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-12-13 13:02:34 +01:00
Werner Koch
b5333e13cb
gpg: Simplify cipher:write_header.
* g10/cipher.c (write_header): Use write_status_printf.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-12-13 12:15:40 +01:00
Werner Koch
067e62fe55
indent: Re-indent g10/cipher.c
--
2017-12-13 12:14:52 +01:00
Werner Koch
9f641430dc
gpg: Simplify default_recipient().
* g10/pkclist.c (default_recipient): Use hexfingerprint.
--

Note that on malloc failure this function now returns NULL instead of
terminating the process.  However, under memory pressure any function
called latter will very likely fail as well.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-12-13 11:03:06 +01:00
Werner Koch
cd26c5482b
gpg: Return an error from hexfingerprint on malloc error.
* g10/keyid.c (hexfingerprint): Return NULL on malloc failure.  Chnage
all callers.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-12-13 10:52:34 +01:00
Werner Koch
29119a6492
gpg: Remove some xmallocs.
* g10/getkey.c (get_pubkeys): Do not use xmalloc.
--

We eventually need to get rid of all xmallocs so that gpg won't fail
easily when we make more use of the s server mode.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-12-13 10:07:30 +01:00
Werner Koch
8602b980df
indent: Re-indent get_pubkeys.
--
2017-12-13 10:07:28 +01:00
Daniel Kahn Gillmor
8ede3ae29a
gpg: default-preference-list: prefer SHA512.
* g10/keygen.c (keygen_set_std_prefs): when producing default internal
personal-digest-preferences, keep the same order.  When publishing
external preferences, state preference for SHA512 first.

--

SHA-512 has a wider security margin than SHA-256.  It is also slightly
faster on most of the architectures on which GnuPG runs today.  New
keys should publish defaults that indicate we prefer the stronger,
more performant digest.

Specifically, this changes --default-preference-list from:

   SHA256 SHA384 SHA512 SHA224

to:

   SHA512 SHA384 SHA256 SHA224

This patch deliberately avoids touching --personal-digest-preferences
(which itself would affect the default of --digest-algo and
--cert-digest-algo), so that public-facing cleartext signatures and
identity certifications will continue to be made with SHA256 by
default.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2017-12-12 15:07:43 +01:00
Werner Koch
b38ca59bdb
Merge branch 'STABLE-BRANCH-2-2' into master 2017-12-11 10:42:38 +01:00
Werner Koch
34defc9bce
Adjust for changed macro names in libgpg-error master.
* common/logging.h (GPGRT_LOGLVL_): New replacement macros for older
libgpg-error versions.

--

Updates-commit: b56dfdfc18
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-12-11 10:42:23 +01:00
NIIBE Yutaka
0d0b9eb0d4 g10: Fix regexp sanitization.
* g10/trustdb.c (sanitize_regexp): Only escape operators.

--

Backport from master commit:
	ccf3ba9208

To sanitize a regular expression, quoting by backslash should be only
done for defined characters.  POSIX defines 12 characters including
dot and backslash.

Quoting other characters is wrong, in two ways; It may build an
operator like: \b, \s, \w when using GNU library.  Case ignored match
doesn't work, because quoting lower letter means literally and no
much to upper letter.

GnuPG-bug-id: 2923
Co-authored-by: Damien Goutte-Gattat <dgouttegattat@incenp.org>
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-12-04 19:26:49 +09:00
Werner Koch
b56dfdfc18
Use the gpgrt log functions if possible.
* 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>
2017-11-27 15:00:25 +01:00
Werner Koch
4cf3cc6e3d
gpg: Do not read from uninitialized memory with --list-packets.
* g10/parse-packet.c (parse_plaintext): Fill up the allocated NAME.
--

This actually does not harm because we merely display a buffer
allocated by ourselves.  However, we better tell Valgrind about it so
that we don't need to track this thing down ever again.

Test using a corrupted literal data packet:

  echo cb 0a 75 ff 59 ae 90 d5  74 65 73 74 | \
    undump |\
    valgrind gpg --list-packets >/dev/null

Reported-by: Sebastian Schinzel
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-11-26 18:33:49 +01:00
Werner Koch
fe96ca8d86
Merge branch 'STABLE-BRANCH-2-2'
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-11-23 15:12:45 +01:00
Werner Koch
531182b7f8
build: Update distsigkey.gpg
--
2017-11-22 20:54:47 +01:00
Werner Koch
ea28ea18f3
gpg: Fix memory leaking for long inputs via --command-fd.
* g10/cpr.c (do_get_from_fd): Free the old buffer.
--

If the received input is longer than 200 characters we used to leak
the previous allocated buffer.

GnuPG-bug-id: 3528
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-11-22 20:54:47 +01:00
Werner Koch
166f3f9ec4
gpg: Repurpose the ISO defined DO "sex" to "salutation".
* g10/card-util.c (current_card_status): String changes.
(change_sex): Description change.
(cmds): Add "salutation"; keep "sex" as an alias.
--

Note that we can't change the used values or tags but at least the UI
should show reflect the real purpose of the field.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-11-15 11:34:30 +01:00
Werner Koch
091c4af645
Merge branch 'STABLE-BRANCH-2-2'
--
Kept our AUTHORS and README
2017-11-15 11:01:10 +01:00
Werner Koch
b062ea5bc2
gpg: Print AKL info only in verbose mode.
* g10/getkey.c (get_pubkey_byname): Print info only in verbose mode.
--

GnuPG-bug-id: 3504
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-11-15 08:47:41 +01:00
NIIBE Yutaka
ccf3ba9208 g10: Fix regexp sanitization.
* g10/trustdb.c (sanitize_regexp): Only escape operators.

--

To sanitize a regular expression, quoting by backslash should be only
done for defined characters.  POSIX defines 12 characters including
dot and backslash.

Quoting other characters is wrong, in two ways; It may build an
operator like: \b, \s, \w when using GNU library.  Case ignored match
doesn't work, because quoting lower letter means literally and no
much to upper letter.

GnuPG-bug-id: 2923
Co-authored-by: Damien Goutte-Gattat <dgouttegattat@incenp.org>
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-11-09 14:03:22 +09:00
NIIBE Yutaka
680161647a
g10: Unattended key generation "Key-Grip" and "Subkey-Grip".
* g10/keygen.c (pSUBKEYGRIP): New.
(read_parameter_file): Add "Key-Grip" and "Subkey-Grip".
(do_generate_keypair): Support pSUBKEYGRIP.

--

In the manual, it says "Key-Grip".  gpgsm also supports "Key-Grip".
Adding "Subkey-Grip" now, adding "Key-Grip" makes sense.

GnuPG-bug-id: 3478
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit 6c63a04569)
2017-11-06 12:10:09 +01:00
NIIBE Yutaka
f183b9768b
g10: Simplify "factory-reset" procedure.
* g10/card-util.c (factory_reset): Simplify.

--

In this summer, I got report about old code before this change didn't
work with newer Yubikey.  I got another report test version of OpenPGP
card V3.3 implementation didn't work, either.  Then, I confirmed that
according to the OpenPGP card specification, the procedure of old code
is not expected by its author.

This change simplify "factory-reset" as simple.

Only versions of Gnuk 1.2.2, 1.2.3, 1.2.4, won't work with this
change.  That's because the factory-reset feature of Gnuk was
introduced by reading the implementation of GnuPG, instead of reading
the specification.  Gnuk 1.2.5 and later works well.  All OpenPGPcard
implementations I have work well (2.0, 2.1, 2.2, test version of 3).

GnuPG-bug-id: 3286
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit d63b7966cd)
2017-11-06 12:09:37 +01:00
Werner Koch
acb3005434
gpg: Introduce magic value 25519 to switch a card to ECC.
* g10/card-util.c (ask_card_keyattr): Handle special value 25519.
(do_change_keyattr): Allow changing to cv25519/ed25519.
(generate_card_keys): Ditto.
(card_generate_subkey): Ditto.
--

This is kludge to make it easier for gnuk to be switched into ECC
mode.  This is basically the same change as
commit ea09b6cded
but without the string change in show_keysize_warning.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-11-02 17:31:57 +01:00
Werner Koch
de3a740c2e
gpg: Rename two card related functions in card-util.
* g10/card-util.c (ask_card_rsa_keysize): Rename to ask_card_keyattr.
(do_change_rsa_keysize): Rename to do_change_keyattr.
--

We want to support other algos than RSA and thus we need a better name
for the functions.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit f795f4529d)
2017-11-02 17:22:59 +01:00
Werner Koch
922bae8082
gpg: Unifiy the message for re-configuring cards.
* g10/card-util.c (ask_card_keyattr): Print "rsaNNNN".
--

This is a separate patch from the previous to avoid string changes
when backporting the other patch to 2.2.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-11-02 17:20:13 +01:00
Werner Koch
ea09b6cded
gpg: Introduce magic value 25519 to switch a card to ECC.
* g10/card-util.c (show_keysize_warning): Slightly change the text.
(ask_card_keyattr): Handle special value 25519.
(do_change_keyattr): Allow changing to cv25519/ed25519.
(generate_card_keys): Ditto.
(card_generate_subkey): Ditto.
--

This is kludge to make it easier for gnuk to be switched into ECC
mode.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-11-02 17:16:14 +01:00
Werner Koch
fd3f5ca151
Register another OpenPGP card vendor.
--
2017-11-01 18:17:44 +01:00
Werner Koch
87b94e08d7
gpg: Remove trailing comma in an enum.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-11-01 18:14:26 +01:00
Werner Koch
f795f4529d
gpg: Rename two card related functions in card-util.
* g10/card-util.c (ask_card_rsa_keysize): Rename to ask_card_keyattr.
(do_change_rsa_keysize): Rename to do_change_keyattr.
--

We want to support other algos than RSA and thus we need a better name
for the functions.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-11-01 18:13:25 +01:00
NIIBE Yutaka
6c63a04569 g10: Unattended key generation "Key-Grip" and "Subkey-Grip".
* g10/keygen.c (pSUBKEYGRIP): New.
(read_parameter_file): Add "Key-Grip" and "Subkey-Grip".
(do_generate_keypair): Support pSUBKEYGRIP.

--

In the manual, it says "Key-Grip".  gpgsm also supports "Key-Grip".
Adding "Subkey-Grip" now, adding "Key-Grip" makes sense.

GnuPG-bug-id: 3478
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-11-01 10:19:35 +09:00
NIIBE Yutaka
d63b7966cd g10: Simplify "factory-reset" procedure.
* g10/card-util.c (factory_reset): Simplify.

--

In this summer, I got report about old code before this change didn't
work with newer Yubikey.  I got another report test version of OpenPGP
card V3.3 implementation didn't work, either.  Then, I confirmed that
according to the OpenPGP card specification, the procedure of old code
is not expected by its author.

This change simplify "factory-reset" as simple.

Only versions of Gnuk 1.2.2, 1.2.3, 1.2.4, won't work with this
change.  That's because the factory-reset feature of Gnuk was
introduced by reading the implementation of GnuPG, instead of reading
the specification.  Gnuk 1.2.5 and later works well.  All OpenPGPcard
implementations I have work well (2.0, 2.1, 2.2, test version of 3).

GnuPG-bug-id: 3286
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-10-30 11:59:11 +09:00
Werner Koch
f6ab97fd96
Merge branch 'STABLE-BRANCH-2-2' into master
--
Resolved Conflicts:
	configure.ac - Adjust due to new log_clock otions
2017-10-27 13:56:15 +02:00
Werner Koch
84af859e39
gpg: Avoid superfluous sig check info during import.
* g10/key-check.c (print_info): New.
(key_check_all_keysigs): Print sig checking results only in debug
mode.  Prettify the stats info and suppress them in quiet mode.

--

This also makes usable stats by prefixing them with the key and the
program name.

GnuPG-bug-id: 3397
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-10-24 21:11:38 +02:00
Werner Koch
560d85ecff
gpg: Improve the "secret key available" notice in keyedit.c
* g10/keyedit.c (KEYEDIT_NEED_SUBSK): New.
(cmds): Add this flag to keytocard, bkuptocard, expire, and passwd.
(keyedit_menu): Check whether only subkeys are available and take care
of that in the command check and in the HELP listing.  Also print a
different notice if only subkeys are available.
--

Print "Secret key is available" and the bailing out in all commands
which require the _primary_ secret key was surprising.  Now we print
another notice and adjust the checks.

GnuPG-bug-id: 3463
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-10-24 10:56:13 +02:00
Werner Koch
016538d828
gpg: Remove unused flags from keyedit.c.
* g10/keyedit.c (KEYEDIT_NOT_SK, KEYEDIT_ONLY_SK): Remove.
(cmds): Remove them.
--

These flags were cruft from the time we had to switch between secret
and public key view.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-10-24 09:35:25 +02:00
Werner Koch
44fb3fbc85
gpg: Fix creating on-disk subkey with on-card primary key.
* g10/keygen.c (generate_subkeypair): Ignore error code issued for
trying to verify a card based key.
--

We try to verify the primary key and thus seed the passphrase cache
before generating the subkey.  However, the verification does not yet
work for on-card keys and thus the PASSWD --verify send to the agent
returns an error.  This patch detects this error and continues without
a seeded passphrase cache.  After all that pre-seeding is just a
convenience.

GnuPG-bug-id: 3280
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-10-19 18:10:37 +02:00
Werner Koch
2c7dccca9b
gpg: Print sec/sbb with --import-option import-show or show-only.
* g10/import.c (import_one): Pass FROM_SK to list_keyblock_direct.
--

Note that this will likely add the suffix '#' top "sec" because the
secret key has not yet (or will not be) imported.  If the secret key
already exists locally another suffix might be printed.  The upshot is
that the suffix has no usefulness.

GnuPG-bug-id: 3431
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-10-19 17:12:36 +02:00
Werner Koch
68c8619114
gpg: Make --dry-run and show-only work for secret keys.
* g10/import.c (import_secret_one): Check for dry-run before
transferring keys.
--

The use of --dry-run or --import-option show-only had no effect when
importing a secret key and the public key already existed.  If the
public key did not exist an error message inhibited the import of the
secret key.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-10-19 17:05:39 +02:00
NIIBE Yutaka
d07de38627
g10: Fix find_and_check_key for multiple keyrings.
* g10/pkclist.c (find_and_check_key): Call get_validity on a specific
keyblock.

--

When we have multiple keyrings, get_validity after
get_best_pubkey_byname should access same keyring.  Or else, the
situation of an expired key in keyring A but valid key in keyring B
causes SEGV.

Thanks to Guido Günther for the use case and the log.

Debian-bug-id: 878812
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-10-19 15:03:19 +02:00
Werner Koch
7c73db3d31
gpg: Keep a lock during the read-update/insert cycle in import.
* g10/keydb.c (keydb_handle): New field 'keep_lock'.
(keydb_release): Clear that flag.
(keydb_lock): New function.
(unlock_all): Skip if KEEP_LOCK is set.
* g10/getkey.c (get_keyblock_byfprint_fast): Call keep_lock if
requested.
--

That change is straightforward.  It helps to avoid the race condition
that another gpg process inserts a key while the first process is
between the search and the insert.

A similar change is due for gpgsm.

Note that the key edit operations may still suffer from a race.

GnuPG-bug-id: 3446
2017-10-19 15:02:28 +02:00
Werner Koch
8448347b5b
gpg: Improve keydb handling in the main import function.
* g10/getkey.c (get_pubkey_byfprint_fast): Factor most code out to ...
(get_keyblock_byfprint_fast): .. new function.
* g10/import.c (revocation_present): s/int rc/gpg_error_t err/.
(import_one): Use get_keyblock_byfprint_fast to get the keyblock and a
handle.  Remove the now surplus keyblock fetch in the merge branch.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-10-19 15:01:38 +02:00
Werner Koch
752cae6dd2
gpg: Simplify keydb handling of the main import function.
* g10/import.c (import_keys_internal): Return gpg_error_t instead of
int.  Change var names.
(import_keys_es_stream): Ditto.
(import_one): Ditto.  Use a single keydb_new and simplify the use of
of keydb_release.
--

Note that this opens a keydb handle before we call
get_pubkey_byfprint_fast which internally uses another key db handle.
A further patch will cleanup this double use.  Note that we also
disable the keydb caching for the insert case.

The s/int/gpg_error_t/ has been done while checking the call chains of
the import functions and making sure that gpg_err_code is always used.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-10-19 15:00:05 +02:00
NIIBE Yutaka
995c46ea77 g10: Fix find_and_check_key for multiple keyrings.
* g10/pkclist.c (find_and_check_key): Call get_validity on a specific
keyblock.

--

When we have multiple keyrings, get_validity after
get_best_pubkey_byname should access same keyring.  Or else, the
situation of an expired key in keyring A but valid key in keyring B
causes SEGV.

Thanks to Guido Günther for the use case and the log.

Debian-bug-id: 878812
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-10-19 11:08:24 +09:00
Werner Koch
645f30ad31
gpg: Keep a lock during the read-update/insert cycle in import.
* g10/keydb.c (keydb_handle): New field 'keep_lock'.
(keydb_release): Clear that flag.
(keydb_lock): New function.
(unlock_all): Skip if KEEP_LOCK is set.
* g10/getkey.c (get_keyblock_byfprint_fast): Call keep_lock if
requested.
--

That change is straightforward.  It helps to avoid the race condition
that another gpg process inserts a key while the first process is
between the search and the insert.

A similar change is due for gpgsm.

Note that the key edit operations may still suffer from a race.

GnuPG-bug-id: 3446
2017-10-18 18:28:52 +02:00
Werner Koch
3bb06531d3
gpg: Improve keydb handling in the main import function.
* g10/getkey.c (get_pubkey_byfprint_fast): Factor most code out to ...
(get_keyblock_byfprint_fast): .. new function.
* g10/import.c (revocation_present): s/int rc/gpg_error_t err/.
(import_one): Use get_keyblock_byfprint_fast to get the keyblock and a
handle.  Remove the now surplus keyblock fetch in the merge branch.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-10-18 17:52:41 +02:00
Werner Koch
d353287f72
gpg: Simplify keydb handling of the main import function.
* g10/import.c (import_keys_internal): Return gpg_error_t instead of
int.  Change var names.
(import_keys_es_stream): Ditto.
(import_one): Ditto.  Use a single keydb_new and simplify the use of
of keydb_release.
--

Note that this opens a keydb handle before we call
get_pubkey_byfprint_fast which internally uses another key db handle.
A further patch will cleanup this double use.  Note that we also
disable the keydb caching for the insert case.

The s/int/gpg_error_t/ has been done while checking the call chains of
the import functions and making sure that gpg_err_code is always used.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-10-18 13:56:14 +02:00
Werner Koch
18e5946aef
gpg: Fix wrong Tofu DB consistency check.
* g10/tofu.c (build_conflict_set): Do not assume MAX_FINGERPRINT_LEN
is the size of the fingerprint.
--

This problem was exhibited by
commit ecbbafb88d.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-10-18 13:56:12 +02:00
Werner Koch
825abec0e7
gpg,sm: New option --with-key-screening.
* 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>
2017-10-17 21:10:19 +02:00
Neal H. Walfield
1ed21eee79 gpg: Fix comparison.
* g10/gpgcompose.c (literal_name): Complain if passed zero arguments,
not one or fewer.

Signed-off-by: Neal H. Walfield <neal@walfield.org>
2017-10-06 11:53:51 +02:00
Werner Koch
b509d81cab
gpg: Workaround for junk after --trusted-key.
* g10/trust.c (register_trusted_key): Cut off everthing starting as a
hash sign.
--

This problem is fallout from
commit f99830b728
which fixes
GnuPG-bug-id: 1206

The same could happen with other options taking keyids but we won't
change that because a trailing '#' does not indicate a comment.  So
this is really only a workaround and eventually we will
deprecate --trusted-key anyway or require a fingerprint as a value.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-09-28 14:10:12 +02:00
Werner Koch
ecbbafb88d
gpg: Prepare for a longer fingerprint
* g10/card-util.c (change_cafpr): Use MAX_FINGERPRINT_LEN.
* g10/cipher.c (write_header): Use snprintf.
* g10/gpg.h (MAX_FINGERPRINT_LEN): Change to 32.
(MAX_FORMATTED_FINGERPRINT_LEN): Change to 59
* g10/keyid.c (format_hexfingerprint): Add v5 fingerprint format.
* g10/tofu.c (get_policy): Use MAX_FINGERPRINT_LEN for the buffer but
keep the raw length for now.
--

Note that this patch only increases the size of the buffer and adds a
new formatting for v5 fingerprints.  Moe work is required to fix
internal data structures like those in trustdb.gpg and the tofu
tables.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-09-27 09:42:13 +02:00
Werner Koch
76c80021d4
common: Add constant KEYGRIP_LEN.
* common/util.h (KEYGRIP_LEN): New.
* g10/call-agent.c (agent_probe_any_secret_key): Use that constant.
* g10/keyid.c (keygrip_from_pk): Ditto.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-09-27 09:33:14 +02:00
Werner Koch
6aa4478c78
gpg: Let --debug clock time sign and verify.
* 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>
2017-09-27 07:59:07 +02:00
Werner Koch
cd2d758f3f
Merge branch 'STABLE-BRANCH-2-2' into master
--

Signed-off-by: Werner Koch <wk@gnupg.org>
Conflicts:
	NEWS - include release info from 2.2.1
	configure.ac - keep master.
2017-09-26 12:00:03 +02:00
NIIBE Yutaka
0a76611294 g10: Select a secret key by checking availability under gpg-agent.
* g10/getkey.c (finish_lookup): Add WANT_SECRET argument to confirm
by agent_probe_secret_key.
(get_pubkey_fromfile, lookup): Supply WANT_SECRET argument.

--

GnuPG-bug-id: 1967
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-09-26 11:02:05 +09:00