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2018-03-27agent: Make the request origin a part of the cache items.Werner Koch1-1/+1
* agent/cache.c (agent_put_cache): Add arg 'ctrl' and change all callers to pass it. (agent_get_cache): Ditto. * agent/cache.c (struct cache_items_s): Add field 'restricted'. (housekeeping): Adjust debug output. (agent_flush_cache): Ditto. (agent_put_cache): Ditto. Take RESTRICTED into account. (agent_get_cache): Ditto. -- If requests are coming from different sources they should not share the same cache. This way we make sure that a Pinentry pops up for a remote request to a key we have already used locally. GnuPG-bug-id: 3858 Signed-off-by: Werner Koch <[email protected]>
2017-03-07agent: Resolve conflict of util.h.NIIBE Yutaka1-2/+2
* 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]>
2016-11-05Change all http://www.gnu.org in license notices to https://Werner Koch1-1/+1
--
2016-08-09agent: SSH support improvement.NIIBE Yutaka1-1/+1
* agent/command-ssh.c (ssh_handler_request_identities): Skip a key with error, not giving up to handle the request itself. * agent/cvt-openpgp.c (extract_private_key): Support "ecdsa" key. -- Note that "ecdsa" key is still in use by old versions of gpg-agent through its SSH handling (until 2.1.14). With old versions of gpg-agent, adding ECDSA key by ssh-add command, "ecdsa" key will be created. So, "ecdsa" key should be supported. For g10/gpg, "ecdsa" and "ecdh" was only used in some experimental versions of libgcrypt, with parameters. We now use "ecc" for all cases in released versions. Signed-off-by: NIIBE Yutaka <[email protected]>
2016-04-12agent: Implement new protection mode openpgp-s2k3-ocb-aes.Werner Koch1-1/+1
* 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]>
2015-12-24agent: IMPORT_KEY with --force option fix.NIIBE Yutaka1-5/+5
* agent/cvt-openpgp.c (convert_from_openpgp_main): Add an option not to check existing key. (convert_from_openpgp): Ditto. (convert_from_openpgp_native): Call convert_from_openpgp_main with dontcare_exist=0. * agent/command.c (cmd_import_key): Call with dontcare_exist=force.
2015-10-09agent: Fix function return type for check_cb and agent_askpin.NIIBE Yutaka1-1/+1
* agent/call-pinentry.c (unlock_pinentry): Return gpg_error_t. (start_pinentry, setup_qualitybar): Likewise. (agent_askpin): Fix return value check of check_cb. * agent/command-ssh.c (reenter_compare_cb): Return gpg_error_t. (ssh_identity_register): Fix return value check of agent_askpin. * agent/cvt-openpgp.c (try_do_unprotect_cb): Return gpg_error_t. * agent/findkey.c (try_unprotect_cb): Likewise. * agent/genkey.c (reenter_compare_cb): Return gpg_error_t. (agent_ask_new_passphrase): Fix return value check of agent_askpin.
2015-09-19agent: Fix importing ECC key.NIIBE Yutaka1-99/+11
* agent/cvt-openpgp.c (convert_from_openpgp_main): Only encrypted parameters are stored as opaque. (apply_protection): ARRAY members are all normal, non-opaque MPI. (extract_private_key): Get public key as normal, non-opaque MPI. Remove support of ECC key with '(flags param)'. Remove support of "ecdsa" and "ecdh" keys of our experiment.
2015-08-24agent: Raise the maximum password length. Don't hard code it.Neal H. Walfield1-2/+2
* agent/agent.h (MAX_PASSPHRASE_LEN): Define. * agent/command-ssh.c (ssh_identity_register): Use it instead of a hard-coded literal. * agent/cvt-openpgp.c (convert_from_openpgp_main): Likewise. * agent/findkey.c (unprotect): Likewise. * agent/genkey.c (agent_ask_new_passphrase): Likewise. -- Signed-off-by: Neal H. Walfield <[email protected]>. GnuPG-bug-id: 2038
2015-08-10agent: fix ECC key handling.NIIBE Yutaka1-38/+20
* agent/cvt-openpgp.c (get_keygrip, convert_secret_key) (convert_transfer_key): CURVE is the name of curve.
2015-08-06Curve25519 support.NIIBE Yutaka1-32/+59
* agent/cvt-openpgp.c (get_keygrip): Handle Curve25519. (convert_secret_key, convert_transfer_key): Ditto. * common/openpgp-oid.c (oidtable): Add Curve25519. (oid_crv25519, openpgp_oid_is_crv25519): New. * common/util.h (openpgp_oid_is_crv25519): New. * g10/ecdh.c (pk_ecdh_encrypt_with_shared_point): Handle the case with Montgomery curve which uses x-only coordinate. * g10/keygen.c (gen_ecc): Handle Curve25519. (ask_curve): Change the API and second arg is to return subkey algo. (generate_keypair, generate_subkeypair): Follow chage of ask_curve. * g10/keyid.c (keygrip_from_pk): Handle Curve25519. * g10/pkglue.c (pk_encrypt): Handle Curve25519. * g10/pubkey-enc.c (get_it): Handle the case with Montgomery curve. * scd/app-openpgp.c (ECC_FLAG_DJB_TWEAK): New. (send_key_attr): Work with general ECC, Ed25519, and Curve25519. (get_public_key): Likewise. (ecc_writekey): Handle flag_djb_tweak. -- When libgcrypt has Curve25519, GnuPG now supports Curve25519.
2015-04-14agent: Send the new SETKEYINFO command to the Pinentry.Werner Koch1-1/+1
* agent/call-pinentry.c (agent_askpin): Add args keyinfo and cache_mode. Change all callers to pass (NULL,0) for them. Send SETKEYINFO command. * agent/findkey.c (unprotect): Pass the keygrip and the cache_mode for the new args. Signed-off-by: Werner Koch <[email protected]>
2015-03-19agent: Compute correct MPI length header for protected ECC keys.Werner Koch1-2/+21
* agent/cvt-openpgp.c (apply_protection): Strip leading zeroes from opaque MPIs to comply with the OpenPGP spec. -- This patch is the protected private key counterpart to commit ab17f7b. Thanks to andy_s for describing the problem. GnuPG-bug-id: 1853 Signed-off-by: Werner Koch <[email protected]>
2015-02-11Use inline functions to convert buffer data to scalars.Werner Koch1-3/+4
* common/host2net.h (buf16_to_ulong, buf16_to_uint): New. (buf16_to_ushort, buf16_to_u16): New. (buf32_to_size_t, buf32_to_ulong, buf32_to_uint, buf32_to_u32): New. -- Commit 91b826a38880fd8a989318585eb502582636ddd8 was not enough to avoid all sign extension on shift problems. Hanno Böck found a case with an invalid read due to this problem. To fix that once and for all almost all uses of "<< 24" and "<< 8" are changed by this patch to use an inline function from host2net.h. Signed-off-by: Werner Koch <[email protected]>
2015-01-29agent: Fix use of imported but unprotected openpgp keys.Werner Koch1-7/+19
* 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]>
2015-01-28agent: Add some extra robustness to extract_private_keyWerner Koch1-2/+10
* agent/cvt-openpgp.c (extract_private_key): Add arg "arraysize". Make sure that R_FLAGS and R_CURVE are set to NULL. -- Given that extract_private_key is not file local it is good to have some extra asserts to protect against future wrong use. Signed-off-by: Werner Koch <[email protected]>
2015-01-27agent: Fix agent_public_key_from_file for ECC.NIIBE Yutaka1-40/+121
* agent/cvt-openpgp.c (extract_private_key): New. (convert_to_openpgp): Use extract_private_key. * agent/findkey.c (agent_public_key_from_file): Use extract_private_key. -- This patch add support of ECC key with a curve name and flags. Since same functionality is also needed for convert_to_openpgp, it was factored out into the extract_private_key function.
2014-11-04Change a couple of files to use abbreviated copyright notes.Werner Koch1-2/+1
-- 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.
2014-09-02agent: Fix import of OpenPGP EdDSA keys.Werner Koch1-18/+66
* agent/cvt-openpgp.c (get_keygrip): Special case EdDSA. (convert_secret_key): Ditto. (convert_transfer_key): Ditto. (apply_protection): Handle opaque MPIs. (do_unprotect): Check FLAG_OPAQUE instead of FLAG_USER1 before unpacking an opaque mpi. -- The key transfer protocol between gpg and gpg-agent uses gcrypt algorithm numbers which merge all ECC algorithms into one. Thus it is not possible to use the algorithm number to determine the EdDSA algorithm. We need to known that because Libgcrypt requires the "eddsa" flag with the curve "Ed25519" to actually use the Ed25519 signature specification. The last fix is for correctness; the first case won't be used anyway.
2014-06-26agent: Fix export of RSA keys to OpenPGP.Werner Koch1-1/+1
* agent/cvt-openpgp.c (convert_transfer_key): Fix sexp build format string.
2014-06-20gpg: Make export of ECC keys work again.Werner Koch1-9/+28
* agent/cvt-openpgp.c (convert_to_openpgp): Use the curve name instead of the curve parameters. * g10/export.c (canon_pubkey_algo): Rename to ... (canon_pk_algo): this. Support ECC. (transfer_format_to_openpgp): Expect curve name.
2014-05-08agent: Fix import of non-protected gpg keys.Werner Koch1-3/+9
* agent/cvt-openpgp.c (do_unprotect): Return an s-exp also for non-protected keys. (convert_from_openpgp_main): Do not call agent_askpin for a non-protected key.
2014-05-07gpg: Finish experimental support for Ed25519.Werner Koch1-84/+100
* agent/cvt-openpgp.c (try_do_unprotect_arg_s): Add field "curve". (get_keygrip): Add and use arg CURVE. (convert_secret_key): Ditto. (convert_transfer_key): Ditto. (get_npkey_nskey): New. (prepare_unprotect): Replace gcrypt functions by get_npkey_nskey. Allow opaque MPIs. (do_unprotect): Use CURVE instead of parameters. (convert_from_openpgp_main): Ditto. (convert_to_openpgp): Simplify. * g10/import.c (one_mpi_from_pkey): Remove. (transfer_secret_keys): Rewrite to use the curve instead of the parameters. * g10/parse-packet.c (parse_key): Mark protected MPIs with USER1 flag. * common/openpgp-oid.c (openpgp_curve_to_oid): Allow the use of "NIST P-256" et al. * g10/keygen.c (ask_curve): Add arg ALGO. (generate_keypair): Rewrite the ECC key logic. * tests/openpgp/ecc.test: Provide the "ecc" passphrase.
2014-04-28ECC Fixes.NIIBE Yutaka1-29/+8
* agent/cvt-openpgp.c (get_keygrip, convert_secret_key) (convert_transfer_key): Follow newer (>= 1.6) libgcrypt API, which does not distinguish the detail. (do_unprotect, convert_from_openpgp_main): Don't call map_pk_openpgp_to_gcry, as it's the value of libgcrypt API already and not the value defined by OpenPGP. (convert_to_openpgp): It's "ecc". * agent/gpg-agent.c (map_pk_openpgp_to_gcry): Remove. * g10/call-agent.c (agent_pkdecrypt): Fix off-by-one error. * g10/pubkey-enc.c (get_it): Fix swapping the fields error.
2014-04-15gpg: Fix regression in secret key export.Werner Koch1-21/+27
* agent/cvt-openpgp.c (convert_to_openpgp): Fix use gcry_sexp_extract_param. * g10/export.c (do_export_stream): Provide a proper prompt to the agent. -- NB: The export needs more work, in particular the ECC algorithms.
2014-03-22agent: Cleanups to prepare implementation of Ed25519.Werner Koch1-53/+49
* agent/cvt-openpgp.c: Remove. (convert_to_openpgp): Use gcry_sexp_extract_param. * agent/findkey.c (is_eddsa): New. (agent_is_dsa_key, agent_is_eddsa_key): Check whether ecc means EdDSA. * agent/pksign.c (agent_pksign_do): Add args OVERRIDEDATA and OVERRIDEDATALEN. * common/ssh-utils.c (is_eddsa): New. (get_fingerprint): Take care or EdDSA.
2013-05-22Implement unattended OpenPGP secret key import.Werner Koch1-91/+274
* 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]>
2011-06-01Fix size_t vs int issues.Marcus Brinkmann1-1/+1
2011-04-26Fixed regression in OpenPGP secret key export.Werner Koch1-1/+4
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.
2011-03-08Require libgcrypt 1.5Werner Koch1-7/+0
Without Libgcrypt 1.5 is was not possible to use ECC keys. ECC is major new feature and thus it does not make sense to allow building with an older Libgcrypt without supporting ECC. Also fixed a few missing prototypes.
2011-02-02Sample ECC keys and message do now work.Werner Koch1-44/+42
Import and export of secret keys does now work. Encryption has been fixed to be compatible with the sample messages. This version tests for new Libgcrypt function and thus needs to be build with a new Libgcrypt installed.
2011-01-21Editorial changes and allow building with old libgcrypts.Werner Koch1-16/+15
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.
2011-01-13Fixed key generation with P-521. Confirmed that signature generation and ↵Andrey Jivsov1-7/+1
verification work.
2011-01-06Integrating http://code.google.com/p/gnupg-ecc/source/detail?r=15 .Andrey Jivsov1-8/+46
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.
2010-12-02s/AES/AES128/ in diagnostics and --list-configWerner Koch1-1/+1
2010-10-13More agent support for gpg.Werner Koch1-1/+1
2010-10-06Import fixes.Werner Koch1-0/+1
new otion for watchgnupg
2010-10-01Exporting secret keys via gpg-agent is now basically supported.Werner Koch1-5/+268
A couple of forward ported changes. Doc updates.
2010-09-02Obscure the cached passphrases.Werner Koch1-5/+3
2010-09-01s/CACHE_MODE_IMPGEN/CACHE_MODE_NONCE/.Werner Koch1-1/+1
Prepare for more use cases of the cache nonce.
2010-09-01Use passphrase caching for import and genkey.Werner Koch1-5/+27
2010-08-31Import OpenPGP keys into the agent.Werner Koch1-0/+807
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