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2018-12-11agent: Make the S2K calibration time runtime configurable.Werner Koch1-7/+26
* agent/protect.c (s2k_calibration_time): New file global var. (calibrate_s2k_count): Use it here. (get_calibrated_s2k_count): Replace function static var by ... (s2k_calibrated_count): new file global var. (set_s2k_calibration_time): New function. * agent/gpg-agent.c (oS2KCalibration): New const. (opts): New option --s2k-calibration. (parse_rereadable_options): Parse that option. -- Note that using an unrelistic high value (like 60000) takes quite some time for calibration. GnuPG-bug-id: 3399 Signed-off-by: Werner Koch <[email protected]> (cherry picked from commit cbcc8c19541fe8407f3b6588fce1535c64cf6b25)
2018-12-11agent: compile-time configuration of s2k calibration.Daniel Kahn Gillmor1-3/+3
* configure.ac: add --with-agent-s2k-calibration=MSEC, introduces AGENT_S2K_CALIBRATION (measured in milliseconds) * agent/protect.c (calibrate_s2k_count): Calibrate based on AGENT_S2K_CALIBRATION. Signed-off-by: Daniel Kahn Gillmor <[email protected]> GnuPG-bug-id: 3399 (cherry picked from commit 926d07c5fa05de05caef3a72b6fe156606ac0549)
2017-12-08agent: Fix description of shadow format.NIIBE Yutaka1-1/+1
* agent/keyformat.txt, agent/protect.c, agent/t-protect.c: Fix. -- https://lists.gnupg.org/pipermail/gnupg-devel/2015-April/029680.html Signed-off-by: NIIBE Yutaka <[email protected]>
2017-11-20agent: Use clock or clock_gettime for calibration.NIIBE Yutaka1-5/+9
* agent/protect.c (calibrate_get_time): Use clock or clock_gettime. -- For calibration, clock(3) is better than times(3) among UNIXen. Tested on NetBSD 7.1 and FreeBSD 11.1, using QEMU. Thanks to Damien Goutte-Gattat for the information of use of CLOCKS_PER_SEC; The old code with times(3) is not 100% correct, in terms of POSIX. It should have used sysconf (_SC_CLK_TCK) instead of CLOCKS_PER_SEC. CLOCKS_PER_SEC is specifically for clock(3). GnuPG-bug-id: 3056, 3276, 3472 Signed-off-by: NIIBE Yutaka <[email protected]> (cherry picked from commit 380bce13d94ff03c96e39ac1d834f382c5c730a1)
2017-11-06agent: New GETINFO sub-commands "s2k_count_cal" and "s2k_time".Werner Koch1-6/+23
* agent/command.c (cmd_getinfo): New sub-commands. * agent/protect.c (get_standard_s2k_count): Factor some code out to ... (get_calibrated_s2k_count): new. (get_standard_s2k_time): New. Signed-off-by: Werner Koch <[email protected]> (cherry picked from commit 52d41c8b0f4af6278d18d8935399ddad16a26856)
2017-11-06agent: New option --s2k-count.Werner Koch1-0/+3
* agent/agent.h (opt): New field 's2k_count'. * agent/gpg-agent.c (oS2KCount): New enum value. (opts): New option --s2k-count. (parse_rereadable_options): Set opt.s2k_count. -- This option is useful to speed up the starting of gpg-agent and in cases where the auto-calibration runs into problems due to a broken time measurement facility. Signed-off-by: Werner Koch <[email protected]> (cherry picked from commit f7212f1d11aad5d910d2c77b2e5c6ab31a0e786e)
2017-07-28agent: For OCB key files return Bad Passprase instead of Checksum Error.Werner Koch1-3/+8
* agent/protect.c (do_decryption): Map error checksum to bad passpharse protection * agent/call-pinentry.c (unlock_pinentry): Don't munge the error source for corrupted protection. -- GnuPG-bug-id: 3266 Signed-off-by: Werner Koch <[email protected]>
2017-07-28agent: Minor cleanup (mostly for documentation).Werner Koch1-6/+7
* agent/command.c (cmd_pksign): Change var name 'rc' to 'err'. * agent/findkey.c (read_key_file): Ditto. Change return type to gpg_error_t. On es_fessk failure return a correct error code. (agent_key_from_file): Change var name 'rc' to 'err'. * agent/pksign.c (agent_pksign_do): Ditto. Change return type to gpg_error_t. Return a valid erro code on malloc failure. (agent_pksign): Ditto. Change return type to gpg_error_t. replace xmalloc by xtrymalloc. * agent/protect.c (calculate_mic): Change return type to gpg_error_t. (do_decryption): Ditto. Do not init RC. (merge_lists): Change return type to gpg_error_t. (agent_unprotect): Ditto. (agent_get_shadow_info): Ditto. -- While code starring for bug 3266 I found two glitches and also changed var name for easier reading. Signed-off-by: Werner Koch <[email protected]>
2017-05-31agent: Fix error from do_encryption.NIIBE Yutaka1-12/+19
* agent/protect.c (do_encryption): Don't mask failure of OUTBUF allocation. Signed-off-by: NIIBE Yutaka <[email protected]>
2017-05-22agent: Add const qualifier for read-only table.NIIBE Yutaka1-2/+2
* agent/call-pinentry.c (start_pinentry): Add const to tbl. * agent/command-ssh.c (request_specs): Add const. (ssh_key_types): Likewise. (request_spec_lookup): Add const to the return value and SPEC. (ssh_request_process): Likewise. * agent/protect.c (protect_info): Add const. (agent_unprotect): Add const to algotable. -- Signed-off-by: NIIBE Yutaka <[email protected]>
2017-04-02agent: Use OCB for key protection with --enable-extended-key-format.Werner Koch1-6/+1
* agent/protect.c (PROT_DEFAULT_TO_OCB): Remove macro. (agent_protect): Make the default protection mode depend on the extend key format option. Signed-off-by: Werner Koch <[email protected]>
2017-03-07agent: Resolve conflict of util.h.NIIBE Yutaka1-1/+1
* agent/Makefile.am (AM_CPPFLAGS): Remove -I$(top_srcdir)/common. * agent/call-pinentry.c, agent/call-scd.c: Follow the change. * agent/command-ssh.c, agent/command.c, agent/cvt-openpgp.c: Ditto. * agent/divert-scd.c, agent/findkey.c, agent/genkey.c: Ditto. * agent/gpg-agent.c, agent/pksign.c, agent/preset-passphrase.c: Ditto. * agent/protect-tool.c, agent/protect.c, agent/trustlist.c: Ditto. * agent/w32main.c: Ditto. -- For openpty function, we need to include util.h on some OS. We also have util.h in common/, so this change is needed. Signed-off-by: NIIBE Yutaka <[email protected]>
2017-02-21Clean up word replication.Yuri Chornoivan1-1/+1
-- This fixes extra word repetitions (like "the the" or "is is") in the code and docs. Signed-off-by: Daniel Kahn Gillmor <[email protected]>
2016-11-05Change all http://www.gnu.org in license notices to https://Werner Koch1-1/+1
--
2016-07-14build: Require latest released librariesWerner Koch1-22/+1
* agent/protect.c (OCB_MODE_SUPPORTED): Remove macro. (do_encryption): Always support OCB. (do_decryption): Ditto. (agent_unprotect): Ditto. * dirmngr/server.c (is_tor_running): Unconditionally build this. -- Although not technically required, it is easier to require them to avoid bug reports due to too old library versions. Signed-off-by: Werner Koch <[email protected]>
2016-04-14agent: Fix regression due to recent commit 4159567.Werner Koch1-2/+4
* agent/protect.c (do_encryption): Fix CBC hashing. -- The buggy code included an extra closing parenthesis before the (protected-at) term in the CBC hashing. We now do it by explicitly hashing the protected stuff and append the rest of the expression instead of a fixed closing parenthesis. Note that the OCB hashing only differs that it does no include the protected part. Fixes-commit: 4159567f7ed7a1139fdc3a6c92988e1648ad84ab Signed-off-by: Werner Koch <[email protected]>
2016-04-12agent: Implement new protection mode openpgp-s2k3-ocb-aes.Werner Koch1-111/+319
* agent/protect.c (agent_protect): Add arg use_ocb. Change all caller to pass -1 for default. * agent/protect-tool.c: New option --debug-use-ocb. (oDebugUseOCB): New. (opt_debug_use_ocb): New. (main): Set option. (read_and_protect): Implement option. * agent/protect.c (OCB_MODE_SUPPORTED): New macro. (PROT_DEFAULT_TO_OCB): New macro. (do_encryption): Add args use_ocb, hashbegin, hashlen, timestamp_exp, and timestamp_exp_len. Implement OCB. (agent_protect): Change to support OCB. (do_decryption): Add new args is_ocb, aadhole_begin, and aadhole_len. Implement OCB. (merge_lists): Allow NULL for sha1hash. (agent_unprotect): Change to support OCB. (agent_private_key_type): Remove debug output. -- Instead of using the old OpenPGP way of appending a hash of the plaintext and encrypt that along with the plaintext, the new scheme uses a proper authenticated encryption mode. See keyformat.txt for a description. Libgcrypt 1.7 is required. This mode is not yet enabled because there would be no way to return to an older GnuPG version. To test the new scheme use gpg-protect-tool: ./gpg-protect-tool -av -P abc -p --debug-use-ocb <plain.key >prot.key ./gpg-protect-tool -av -P abc -u <prot.key Any key from the private key storage should work. Signed-off-by: Werner Koch <[email protected]>
2016-04-12indent: Help Emacs not to get confused by conditional compilation.Werner Koch1-1/+3
* agent/protect.c (calibrate_get_time) [W32]: Use separate function calls for W32 and W32CE. -- Signed-off-by: Werner Koch <[email protected]>
2015-01-29agent: Fix use of imported but unprotected openpgp keys.Werner Koch1-4/+75
* agent/agent.h (PRIVATE_KEY_OPENPGP_NONE): New. * agent/command.c (do_one_keyinfo): Implement it. * agent/findkey.c (agent_key_from_file): Ditto. (agent_key_info_from_file): Ditto. (agent_delete_key): Ditto. * agent/protect.c (agent_private_key_type): Add detection for openpgp "none" method. Signed-off-by: Werner Koch <[email protected]>
2014-11-04Change a couple of files to use abbreviated copyright notes.Werner Koch1-3/+2
-- Also fixed some of my own copyright notices due to the termination of my assignment. The one displayed by --version is kept at FSF because we had contributors in 2014 with FSF assignments and it gives the FSF some visibility.
2014-09-01agent: Allow key unprotection using AES-256.Werner Koch1-29/+50
* agent/protect.c (PROT_CIPHER): Rename to GCRY_CIPHER_AES128 for clarity. (do_decryption): Add args prot_cipher and prot_cipher_keylen. USe them instead of the hardwired values. (agent_unprotect): Change to use a table of protection algorithms. Add AES-256 variant. -- This patch will make a possible future key protection algorithm changes smoother. AES-256 is also allowed although there is currently no way to encrypt using it.
2014-03-07w32: Include winsock2.h to silence warnings.Werner Koch1-0/+3
2013-11-15gpg: Rework ECC support and add experimental support for Ed25519.Werner Koch1-0/+15
* agent/findkey.c (key_parms_from_sexp): Add algo name "ecc". (agent_is_dsa_key): Ditto. (agent_is_eddsa_key): New. Not finished, though. * agent/pksign.c (do_encode_eddsa): New. (agent_pksign_do): Use gcry_log_debug functions. * agent/protect.c (agent_protect): Parse a flags parameter. * g10/keygen.c (gpg_curve_to_oid): Move to ... * common/openpgp-oid.c (openpgp_curve_to_oid): here and rename. (oid_ed25519): New. (openpgp_oid_is_ed25519): New. (openpgp_oid_to_curve): New. * common/t-openpgp-oid.c (test_openpgp_oid_is_ed25519): New. * g10/build-packet.c (gpg_mpi_write): Write the length header also for opaque MPIs. (gpg_mpi_write_nohdr): New. (do_key): Use gpg_mpi_write_nohdr depending on algorithm. (do_pubkey_enc): Ditto. * g10/ecdh.c (pk_ecdh_encrypt_with_shared_point): Use gpg_mpi_write_nohdr. * g10/export.c (transfer_format_to_openpgp): * g10/keygen.c (ecckey_from_sexp): Return the error. (gen_ecc): Repalce arg NBITS by CURVE. (read_parameter_file): Add keywords "Key-Curve" and "Subkey-Curve". (ask_curve): New. (generate_keypair, generate_subkeypair): Use ask_curve. (do_generate_keypair): Also pass curve name. * g10/keylist.c (list_keyblock_print, list_keyblock_colon): Print curve name. * g10/parse-packet.c (mpi_read): Remove workaround for Libcgrypt < 1.5. (parse_key): Fix ECC case. Print the curve name. * g10/pkglue.c (mpi_from_sexp): Rename to get_mpi_from_sexp. (pk_verify, pk_check_secret_key): Add special case for Ed25519. * g10/seskey.c (encode_md_value): Ditto. * g10/sign.c (do_sign, hash_for, sign_file): Ditto. -- Be warned that this code is subject to further changes and that the format will very likely change before a release. There are also known bugs and missing code. Signed-off-by: Werner Koch <[email protected]>
2013-08-01agent: Include missing prototype.Werner Koch1-0/+1
* agent/protect.c: Include cvt-openpgp.h.
2013-05-22Implement unattended OpenPGP secret key import.Werner Koch1-3/+29
* agent/command.c (cmd_import_key): Add option --unattended. * agent/cvt-openpgp.c (convert_transfer_key): New. (do_unprotect): Factor some code out to ... (prepare_unprotect): new function. (convert_from_openpgp): Factor all code out to ... (convert_from_openpgp_main): this. Add arg 'passphrase'. Implement openpgp-native protection modes. (convert_from_openpgp_native): New. * agent/t-protect.c (convert_from_openpgp_native): New dummy fucntion * agent/protect-tool.c (convert_from_openpgp_native): Ditto. * agent/protect.c (agent_unprotect): Add arg CTRL. Adjust all callers. Support openpgp-native protection. * g10/call-agent.c (agent_import_key): Add arg 'unattended'. * g10/import.c (transfer_secret_keys): Use unattended in batch mode. -- With the gpg-agent taking care of the secret keys, the user needs to migrate existing keys from secring.gpg to the agent. This and also the standard import of secret keys required the user to unprotect the secret keys first, so that gpg-agent was able to re-protected them using its own scheme. With many secret keys this is quite some usability hurdle. In particular if a passphrase is not instantly available. To make this migration smoother, this patch implements an unattended key import/migration which delays the conversion to the gpg-agent format until the key is actually used. For example: gpg2 --batch --import mysecretkey.gpg works without any user interaction due to the use of --batch. Now if a key is used (e.g. "gpg2 -su USERID_FROM_MYSECRETKEY foo"), gpg-agent has to ask for the passphrase anyway, converts the key from the openpgp format to the internal format, signs, re-encrypts the key and tries to store it in the gpg-agent format to the disk. The next time, the internal format of the key is used. This patch has only been tested with the old demo keys, more tests with other protection formats and no protection are needed. Signed-off-by: Werner Koch <[email protected]>
2013-02-06agent: Return a better error code if no passphrase was given.Werner Koch1-1/+5
* agent/protect.c (hash_passphrase): Handle an empty passphrase. -- This is mostly useful in loopback pinentry-mode.
2012-12-12ssh: Support ECDSA keys.Werner Koch1-8/+26
* agent/command-ssh.c (SPEC_FLAG_IS_ECDSA): New. (struct ssh_key_type_spec): Add fields CURVE_NAME and HASH_ALGO. (ssh_key_types): Add types ecdsa-sha2-nistp{256,384,521}. (ssh_signature_encoder_t): Add arg spec and adjust all callers. (ssh_signature_encoder_ecdsa): New. (sexp_key_construct, sexp_key_extract, ssh_receive_key) (ssh_convert_key_to_blob): Support ecdsa. (ssh_identifier_from_curve_name): New. (ssh_send_key_public): Retrieve and pass the curve_name. (key_secret_to_public): Ditto. (data_sign): Add arg SPEC and change callers to pass it. (ssh_handler_sign_request): Get the hash algo from SPEC. * common/ssh-utils.c (get_fingerprint): Support ecdsa. * agent/protect.c (protect_info): Add flag ECC_HACK. (agent_protect): Allow the use of the "curve" parameter. * agent/t-protect.c (test_agent_protect): Add a test case for ecdsa. * agent/command-ssh.c (ssh_key_grip): Print a better error code. -- The 3 standard curves are now supported in gpg-agent's ssh-agent protocol implementation. I tested this with all 3 curves and keys generated by OpenSSH 5.9p1. Using existing non-ssh generated keys will likely fail for now. To fix this, the code should first undergo some more cleanup; then the fixes are pretty straightforward. And yes, the data structures are way too complicated.
2012-02-07agent: Add pin length field to the shadowed private key format.Werner Koch1-1/+32
This is not yet fully implemented. It will eventually allow to support pinpad equipped readers which do not support variable length pin lengths. * agent/protect.c (parse_shadow_info): Add optional arg R_PINLEN and parse pinlen info. Change all callers to pass NULL for it.
2011-06-29Added gpg-agent OPTION "s2k-count".Ben Kibbey1-5/+9
When unset or 0, the calibrated count will be used.
2011-04-26Fixed regression in OpenPGP secret key export.Werner Koch1-1/+31
The protection used in the exported key used a different iteration count than given in the S2K field. Thus all OpenPGP keys exported from GnuPG 2.1-beta can't be imported again. Given that the actual secret key material is kept in private-keys-v1.d/ the can be re-exported with this fixed version.
2011-03-10Make use of gcry_kdf_derive.Werner Koch1-63/+6
Factoring common code out is always a Good Thing. Also added a configure test to print an error if gcry_kdf_derive is missing in Libgcrypt.
2011-02-03Finished ECC integration.ECC-INTEGRATION-2-1Werner Koch1-83/+82
Wrote the ChangeLog 2011-01-13 entry for Andrey's orginal work modulo the cleanups I did in the last week. Adjusted my own ChangeLog entries to be consistent with that entry. Nuked quite some trailing spaces; again sorry for that, I will better take care of not saving them in the future. "git diff -b" is useful to read the actual changes ;-). The ECC-INTEGRATION-2-1 branch can be closed now.
2011-01-31Reworked the ECC changes to better fit into the Libgcrypt API.Werner Koch1-2/+3
See ChangeLog for details. Key generation, signing and verification works. Encryption does not yet work. Requires latest Libgcrypt changes.
2011-01-21Editorial changes and allow building with old libgcrypts.Werner Koch1-27/+10
Changed order of some conditional to make to put the special case into the true branch. Indentation changes. Minor other changes to make the ECC code more similar to the rest of our code. It builds but many sefltests still fail. Need to fix that before using it with an ECDH enabled libgcrypt. [/] 2011-01-21 Werner Koch <[email protected]> * configure.ac: Need Libgcrypt 1.4.6 due to AESWRAP. (HAVE_GCRY_PK_ECDH): Add new test. [agent/] 2011-01-21 Werner Koch <[email protected]> * cvt-openpgp.c (GCRY_PK_ECDH) [!HAVE_GCRY_PK_ECDH]: New. [include/] 2011-01-21 Werner Koch <[email protected]> * cipher.h (GCRY_PK_USAGE_CERT): Remove compatibility macros because we now require libgcrypt 1.4.6. (GCRY_PK_ECDH): Add replacement.
2011-01-06Integrating http://code.google.com/p/gnupg-ecc/source/detail?r=15 .Andrey Jivsov1-8/+27
The following works: gpg2 --gen-key (ECC) gpg2 --list-keys gpg2 --list-packets ~/.gnupg/pubring.gpg gpg2 --list-packets <private key from http://sites.google.com/site/brainhub/pgpecckeys> ECDH doesn't work yet as the code must be re-written to adjust for gpg-agent refactoring.
2010-10-01Exporting secret keys via gpg-agent is now basically supported.Werner Koch1-9/+18
A couple of forward ported changes. Doc updates.
2010-08-31Import OpenPGP keys into the agent.Werner Koch1-0/+15
2010-06-17Avoid using the protect-tool to import pkcs#12.Werner Koch1-1/+1
2010-04-14Whole lot of changes to support CE.Werner Koch1-0/+4
2010-01-26Fixed a regression introduced with 2.0.14.Werner Koch1-13/+19
2009-12-15Do not use the VMC C reserved word readonly.Werner Koch1-1/+1
2009-12-14Implement dynamic S2K count computation.Werner Koch1-4/+144
2009-12-08Unification of the search descriptor usage.Werner Koch1-0/+1
2009-06-24Fixed a bunch of little bugs as reported by Fabian Keil.Werner Koch1-2/+5
Still one problem left; marked with a gcc #warning.
2009-03-06New gpg-agent command to list key information.Werner Koch1-1/+66
Gpgsm does now print the S/N of cards. Consider ephemeral keys during listing an export.
2007-08-28Add more passphrase policy rules.Werner Koch1-27/+114
(--max-passphrase-days).
2007-07-04Changed to GPLv3.Werner Koch1-4/+2
Removed intl/.
2007-05-15Use estream_asprintf instead of the GNU asprintf.Werner Koch1-9/+7
2006-11-20Made some PIN pads work.Werner Koch1-1/+1
Some cleanups for 64 bit CPUs.
2006-06-20Updated FSF's address.Werner Koch1-1/+2
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