* common/logging.c (log_printhex): Chnage order of args. Make it
printf alike. Change all callers.
* configure.ac: Add -Wno-format-zero-length
--
This makes it consistent with modern libgpgrt logging and thus eases
back porting from newer GnuPG versions which use libgpgrt logging.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/decrypt-data.c (decrypt_data): Move aead algo detection up.
--
Note that the AEAD modes are not yet approved for --compliance=de-vs
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/openpgpdefs.h (aead_algo_t): New.
(pkttype_t): Add PKT_ENCRYPTED_AEAD.
* g10/decrypt-data.c (struct decode_filter_context_s): Add fields for
AEAD.
(aead_set_nonce_and_ad): New.
(aead_checktag): New.
(decrypt_data): Support AEAD.
(aead_underflow): New.
(aead_decode_filter): New.
* g10/dek.h (DEK): Add field use_aead. Turn use_mdc,
algo_info_printed, and symmetric into bit flags.
* g10/mainproc.c (struct mainproc_context): Add field
seen_pkt_encrypted_aead.
(release_list): Clear it.
(have_seen_pkt_encrypted_aead): New.
(symkey_decrypt_seskey): Support AEAD.
(proc_symkey_enc): Ditto.
(proc_encrypted): Ditto.
(proc_plaintext): Ditto.
* g10/misc.c (MY_GCRY_CIPHER_MODE_EAX): New.
(openpgp_aead_test_algo): New.
(openpgp_aead_algo_name): New.
(openpgp_aead_algo_info): New.
* g10/packet.h (PKT_symkey_enc): Add field use_aead.
(PKT_user_id): Add field flags.aead
(PKT_public_key): Ditto.
(PKT_encrypted): Add fields for AEAD.
* g10/parse-packet.c (parse): Handle PKT_ENCRYPTED_AEAD.
(parse_symkeyenc): Support AEAD.
(parse_encrypted): Ditto.
(dump_sig_subpkt): Dump AEAD preference packet.
(parse_encrypted_aead): New.
--
This patch allows to decrypt data encrypted using the new AEAD
mechanism as specified in rfc4880bis. Although preferences are used
to enable this new mode, it is useful to have at least a decryption
option in case a user switches between GnuPG 2.2 and newer versions.
The new AEAD mechanism is much faster than the current CFB+MDC and
thus 2.2 will allow faster decryption of symmetric only decryption.
This patch is based on the current master (2.3) code base and includes
a few other patches. In particular
commit 44be675b75
(gpg: More check for symmetric key encryption.)
is included.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/decrypt-data.c (mdc_decode_filter, decode_filter): Fatcor buffer
filling code out to ...
(fill_buffer): new.
--
This patch includes the master commit
d989373f1a46139ed0fbc4d4a91069b78617ad9
and
5d6c080522
Benchmarking on our usual X220 shows for a 1.3GiB non-compressed
non-armored AES encrypted file (ECDH encrypted but the symmetric
decryption takes the majority of the time, reading from stdin writing
to /dev/null):
| | before | after |
|------------+-----------+-----------|
| real | 0m15.006s | 0m11.849s |
| user | 0m14.304s | 0m11.259s |
| sys | 0m0.640s | 0m0.537s |
| throughput | 90 MiB/s | 115 MiB/s |
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/decrypt-data.c (struct decode_filter_context_s): Rename 'defer'
to 'holdback' and 'defer_filled' to 'holdbacklen'. Increase size of
holdback to allow for future AEAD decryption. Turn 'partial' and
'eof_seen' into bit fields.
(decrypt_data): Replace write_status_text by write_Status_printf.
Indent parts of the code.
--
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/decrypt-data.c (decrypt_data): If OPT.UNWRAP_ENCRYPTION is set,
copy the data to the output file instead of continuing to process it.
* g10/gpg.c (enum cmd_and_opt_values): Add new value oUnwrap.
(opts): Handle oUnwrap.
(main): Likewise.
* g10/options.h (opt): Add field unwrap_encryption.
* g10/plaintext.c (handle_plaintext): Break the output file selection
functionality into ...
(get_output_file): ... this new function.
--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
GnuPG-bug-id: 1060
Debian-bug-id: 282061
* g10/gpg.h (g10_errstr): Remove macro and change all occurrences by
gpg_strerror.
(G10ERR_): Remove all macros and change all occurrences by their
GPG_ERR_ counterparts.
Signed-off-by: Werner Koch <wk@gnupg.org>
* g10/decrypt-data.c (decrypt_data): Return an error code instead of
calling BUG().
--
This code path can be triggered by fuzzing gpg and thus with some
likeness also by corrupt messages for other reasons.
* g10/decrypt-data.c (decrypt_data): Do not distinguish between a bad
MDC packer header and a bad MDC.
--
The separate diagnostic was introduced for debugging a problems. For
explaining an MDC error a single error message is easier to
understand.
* g10/cpr.c (write_status_strings): New.
(write_status_text): Replace code by a call to write_status_strings.
* g10/mainproc.c (proc_encrypted): Remove show_session_key code.
* g10/decrypt-data.c (decrypt_data): Add new show_session_key code.
--
This feature can be used to return the session key for just a part of
a file. For example to downloading just the first 32k of a huge file,
decrypting that incomplete part and while ignoring all the errors
break out the session key. The session key may then be used on the
server to decrypt the entire file without the need to have the private
key on the server.
GnuPG-bug-id: 1389
Signed-off-by: Werner Koch <wk@gnupg.org>
DECRYPTION_INFO <mdc_method> <sym_algo>
Print information about the symmetric encryption algorithm and
the MDC method. This will be emitted even if the decryption
fails.
Werner Koch