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2025-05-23gpg,agent: Clean up around using ECC KEM.NIIBE Yutaka1-41/+6
* common/util.h (gnupg_ecc_kem_kdf): Change the last two args. * common/kem.c (gnupg_ecc_kem_kdf): The last arguments are KDF_PARAMS and its length. * agent/pkdecrypt.c (composite_pgp_kem_decrypt): Follow the change. * g10/pkglue.c (do_encrypt_kem): Follow the change. * g10/ecdh.c (extract_secret_x, derive_kek): Remove. (gnupg_ecc_6637_kdf): Remove. (ecc_build_kdf_params): Rename from build_kdf_params, changing arguments. * g10/pkglue.c (do_encrypt_ecdh): Refactor by ecc_build_kdf_params and gnupg_ecc_kem_kdf. * g10/pkglue.h (pk_ecdh_decrypt, gnupg_ecc_6637_kdf): Remove. (ecc_build_kdf_params): New. * g10/pubkey-enc.c (ecdh_sexp_build): Use ecc_build_kdf_params. -- GnuPG-bug-id: 7649 Signed-off-by: NIIBE Yutaka <[email protected]>
2025-05-22gpg: Use ECC KEM interface for decryption.NIIBE Yutaka1-27/+75
* g10/call-agent.c (agent_pkdecrypt): Use --kem=PGP for PUBKEY_ALGO_ECDH. * g10/pubkey-enc.c (ecdh_sexp_build): New. (get_it): Use ecdh_sexp_build for PUBKEY_ALGO_ECDH. And don't use pk_ecdh_decrypt since it's done by agent. -- GnuPG-bug-id: 7649 Signed-off-by: NIIBE Yutaka <[email protected]>
2025-01-06gpg: Allow smaller session keys with KyberDamien Goutte-Gattat via Gnupg-devel1-6/+2
* g10/pubkey-enc.c (get_it): Do not error out when decrypting a session key of less than 32 octets encrypted to a Kyber key. -- GnuPG-bug-id: 7472 Signed-off-by: Damien Goutte-Gattat <[email protected]>
2024-11-07gpgtar: Make sure to create upper directories for regular files.Werner Koch1-2/+2
* tools/gpgtar-extract.c (extract_directory): Factor parent directory creation out to .. (try_mkdir_p): new. (extract_regular): Create directory on ENOENT. * g10/pubkey-enc.c (get_it): Use log_info instead of log_error if the public key was not found for preference checking. -- If tarball was created with tar cf tarball file1.txt foo/file2.txt the tarball has no entry for foo/ and thus the extraction fails. This patch fixes this. GnuPG-bug-id: 7380 The second patch avoid a wrong exist status status line due to the use of log_error. But the actual cause needs stuill needs tobe investigated.
2024-09-06gpg: Simplify the pubkey_enc_list objectWerner Koch1-24/+26
* g10/packet.h (struct pubkey_enc_list): Replace most by a PKT_pubkey_enc member. * g10/free-packet.c (free_pubkey_enc): Factor most stuff out to ... (release_pubkey_enc_parts): new. (copy_pubkey_enc_parts): New. * g10/mainproc.c (release_list): Adjust for above change. (proc_pubkey_enc): Ditto. (print_pkenc_list): Ditto. (proc_encrypted): Ditto.
2024-08-12gpg: Improve decryption diagnostic for an ADSK key.Werner Koch1-4/+11
* g10/keydb.h (GET_PUBKEYBLOCK_FLAG_ADSK): New constant. * g10/packet.h (PUBKEY_USAGE_XENC_MASK): New constant. * g10/pubkey-enc.c (get_session_key): Consider an ADSK also as "marked for encryption use". (get_it): Print a note if an ADSK key was used. Use the new get_pubkeyblock flag. * g10/getkey.c (struct getkey_ctx_s): Add field allow_adsk. (get_pubkeyblock): Factor all code out to ... (get_pubkeyblock_ext): new. (finish_lookup): Add new arg allow_adsk and make use of it. -- This patch solves two purposes: - We write a note that the ADSK key was used for decryption - We avoid running into a "oops: public key not found for preference check\n" due to ADSK keys. The error is mostly harmless but lets gpg return with an exit code of 2.
2024-04-23gpg: Support encryption with kyber_bp256 and kyber_bp384Werner Koch1-0/+3
* common/openpgp-oid.c (oidtable): Support KEM for bp256 and bp384. * g10/pkglue.c (do_encrypt_kem): Ditto. -- GnuPG-bug-id: 6815 Note, this needs the very latest Libgcrypt to work properly
2024-04-12gpg: Prepare to use the fingerprint as fixed-info for Kyber.Werner Koch1-5/+19
* g10/pubkey-enc.c (get_it): Use algo and fingerprint for the fixed-info. Keep a testing mode. * g10/options.h (COMPAT_T7014_OLD): New. * g10/gpg.c (compatibility_flags): Add "t71014-old" flag. -- GnuPG-bug-id: 6815
2024-04-11gpg: Changed internal data format for Kyber.Werner Koch1-30/+62
* g10/packet.h (PKT_pubkey_enc): Add field seskey_algo. (struct pubkey_enc_list): Ditto. * g10/misc.c (pubkey_get_nenc): Change value for Kyber from 4 to 3. * g10/parse-packet.c (parse_pubkeyenc): Store the Kyber algo in the new field and adjust data. Do not store the length byte in data[2]. * g10/build-packet.c (do_pubkey_enc): Take the session algo for Kyber from the new field. * g10/encrypt.c (write_pubkey_enc): Ses the seskey_algo. * g10/mainproc.c (proc_pubkey_enc): Copy it. * g10/pubkey-enc.c (get_it): Support Kyber decryption. * g10/seskey.c (encode_session_key): Handle Kyber different from ECDH. -- Having always the single byte in the packet data than to store and retrieve it from an MPI is much easier. Thus this patch changes the original internal format. With this chnages decryption of the slighly modified test data works now. See the bug tracker for test data. GnuPG-bug-id: 6815
2024-04-09gpg: Some support to allow Kyber decryption.Werner Koch1-1/+11
* g10/call-agent.c (agent_pkdecrypt): Support dual keygrips and switch to KEM mode. * g10/ecdh.c (pk_ecdh_decrypt): Add an extra length check. * g10/keyid.c (do_hash_public_key): Fix Kyber fingerprint computation. * g10/mainproc.c (release_list): Free all 4 data elements. (proc_pubkey_enc): Copy all 4 data elements. * g10/misc.c (openpgp_pk_test_algo2): Map Kyber to KEM. * g10/parse-packet.c (parse_pubkeyenc): Fix Kyber parser. * g10/pubkey-enc.c (get_session_key): Allow Kyber. (get_it): Support Kyber. -- GnuPG-bug-id: 6815
2024-04-05gpg: Support dual keygrips.Werner Koch1-0/+2
* g10/keyid.c (keygrip_from_pk): Add arg get_second to support dual algos. Implement for Kyber. (hexkeygrip_from_pk): Extend for dual algos. * g10/call-agent.c (agent_keytotpm): Bail out for dual algos. (agent_keytocard): Ditto. (agent_probe_secret_key): Handle dual algos. (agent_probe_any_secret_key): Ditto. (agent_get_keyinfo): Allow for dual algos but take only the first key. * g10/export.c (do_export_one_keyblock): Bail out for dual algos. -- This also adds some fixmes which we eventually need to address. GnuPG-bug-id: 6815
2021-03-24gpg: Support ECDH with v5 key.NIIBE Yutaka1-5/+1
* g10/ecdh.c (build_kdf_params): Use the first 20 octets. * g10/pkglue.c (pk_encrypt): Remove length check to 20. * g10/pubkey-enc.c (get_it): Likewise. Signed-off-by: NIIBE Yutaka <[email protected]>
2020-07-14gpg: Reword warning about decryption w/o using a non-encrypt key.Werner Koch1-2/+3
--
2020-07-10gpg: For decryption, support use of a key with no 'encrypt' usage.NIIBE Yutaka1-5/+9
* g10/pubkey-enc.c (get_session_key): Don't skip at no PUBKEY_USAGE_ENC. Emit information the key has no 'encrypt' usage. -- GnuPG-bug-id: 4246 Signed-off-by: NIIBE Yutaka <[email protected]>
2020-07-03sm: Exclude rsaPSS from de-vs compliance mode.Werner Koch1-1/+1
* common/compliance.h (PK_ALGO_FLAG_RSAPSS): New. * common/compliance.c (gnupg_pk_is_compliant): Add arg alog_flags and test rsaPSS. Adjust all callers. (gnupg_pk_is_allowed): Ditto. * sm/misc.c (gpgsm_ksba_cms_get_sig_val): New wrapper function. (gpgsm_get_hash_algo_from_sigval): New. * sm/certcheck.c (gpgsm_check_cms_signature): Change type of sigval arg. Add arg pkalgoflags. Use the PK_ALGO_FLAG_RSAPSS. * sm/verify.c (gpgsm_verify): Use the new wrapper and new fucntion to also get the algo flags. Pass algo flags along. Signed-off-by: Werner Koch <[email protected]>
2020-06-09gpg: Use bytes for ECDH.NIIBE Yutaka1-10/+1
* g10/ecdh.c (extract_secret_x): Use byte * instead of MPI. (prepare_ecdh_with_shared_point): Use char * instead of MPI. (pk_ecdh_encrypt_with_shared_point): Likewise. (pk_ecdh_decrypt): Likewise. * g10/pkglue.h (pk_ecdh_encrypt_with_shared_point, pk_ecdh_decrypt): Change declaration. * g10/pkglue.c (get_data_from_sexp): New. (pk_encrypt): Use get_data_from_sexp instead of get_mpi_from_sexp. Follow the change of pk_ecdh_encrypt_with_shared_point. * g10/pubkey-enc.c (get_it): Follow the change of pk_ecdh_decrypt. Signed-off-by: NIIBE Yutaka <[email protected]>
2020-04-08gpg: ECDH: Accept longer padding.NIIBE Yutaka1-4/+1
* g10/pubkey-enc.c (get_it): Remove check which mandates shorter padding. -- According to the section 8 of RFC 6637, the sender MAY use 21 bytes of padding for AES-128 to provide 40-byte "m". Reported-by: Metin Savignano GnuPG-bug-id: 4908 Signed-off-by: NIIBE Yutaka <[email protected]>
2019-07-05gpg: Return the last error for pubkey decryption.NIIBE Yutaka1-16/+20
* g10/mainproc.c (proc_encrypted): Check ->result against -1. When c->dek == NULL, put GPG_ERR_NO_SECKEY only when not set. * g10/pubkey-enc.c (get_session_key): Set k->result by the result of get_it. When no secret key is available for some reasons, return the last specific error, if any. GnuPG-bug-id: 4561 Signed-off-by: NIIBE Yutaka <[email protected]>
2019-04-03gpg: Allow decryption using PIV cards.Werner Koch1-0/+10
* g10/call-agent.c (struct getattr_one_parm_s): New. (getattr_one_status_cb): New. (agent_scd_getattr_one): New. * g10/pubkey-enc.c (get_it): Allow the standard leading zero byte from pkcs#1. * g10/skclist.c (enum_secret_keys): Handle non-OpenPGP cards. Signed-off-by: Werner Koch <[email protected]>
2019-03-15gpg: Avoid importing secret keys if the keyblock is not valid.Werner Koch1-1/+1
* g10/keydb.h (struct kbnode_struct): Replace unused field RECNO by new field TAG. * g10/kbnode.c (alloc_node): Change accordingly. * g10/import.c (import_one): Add arg r_valid. (sec_to_pub_keyblock): Set tags. (resync_sec_with_pub_keyblock): New. (import_secret_one): Change return code to gpg_error_t. Return an error code if sec_to_pub_keyblock failed. Resync secret keyblock. -- When importing an invalid secret key ring for example without key binding signatures or no UIDs, gpg used to let gpg-agent store the secret keys anyway. This is clearly a bug because the diagnostics before claimed that for example the subkeys have been skipped. Importing the secret key parameters then anyway is surprising in particular because a gpg -k does not show the key. After importing the public key the secret keys suddenly showed up. This changes the behaviour of GnuPG-bug-id: 4392 to me more consistent but is not a solution to the actual bug. Caution: The ecc.scm test now fails because two of the sample keys don't have binding signatures. Signed-off-by: Werner Koch <[email protected]>
2019-01-16gpg: Report STATUS_NO_SECKEY when it is examined.NIIBE Yutaka1-0/+3
* g10/packet.h (struct pubkey_enc_list): Add result. * g10/mainproc.c (proc_pubkey_enc): Initialize ->result. (proc_encrypted): Report STATUS_NO_SECKEY status. * g10/pubkey-enc.c (get_session_key): Set ->result. -- This change is for GPGME compatibility. Before this change, gpgme/tests/json/t-json failed with t-decrypt-verify. Signed-off-by: NIIBE Yutaka <[email protected]>
2018-10-08gpg: Make --skip-hidden-recipients work again.Werner Koch1-0/+13
* g10/pubkey-enc.c (get_session_key): Take care of opt.skip_hidden_recipients. -- This was lost due to Fixes-commit: ce2f71760155b71a71418fe145a557c99bd52290 GnuPG-bug-id: 4169 Signed-off-by: Werner Koch <[email protected]>
2018-08-27g10: Enumerated keys for decryption should be unique.NIIBE Yutaka1-2/+0
* g10/getkey.c (enum_secret_keys): Collecting keys in the context, check duplicate to make sure returning only unique keys. * g10/pubkey-enc.c (get_session_key): Now, it's the responsibility of enum_secret_keys to free keys. -- Signed-off-by: NIIBE Yutaka <[email protected]>
2018-08-27g10: Change decryption key selection for public key encryption.NIIBE Yutaka1-59/+59
* g10/mainproc.c (struct mainproc_context): It's now pubkey_enc_list. (do_proc_packets): Remove the first arg CTRL. Fix call of proc_pubkey_enc. (release_list): Handle pubkey_enc_list. (proc_pubkey_enc): Remove the first arg CTRL. Simply put the packet to pubkey_enc_list. (print_pkenc_list): Remove the last arg FAILED. (proc_encrypted): Only call print_pkenc_list once. Handle DEK here. (proc_packets, proc_signature_packets, proc_signature_packets_by_fd) (proc_encryption_packets): Fix call of do_proc_packets. * g10/packet.h (struct pubkey_enc_list): Define. * g10/pubkey-enc.c (get_it): Change the second argument K. (get_session_key): Select session key by LIST, using enum_secret_keys. * g10/gpgv.c (get_session_key): Change the second argument K. * g10/test-stubs.c (get_session_key): Likewise. -- Collect all PKT_PUBKEY_ENC packets, and then, process the PKT_ENCRYPTED* packet. Signed-off-by: NIIBE Yutaka <[email protected]>
2017-11-27Use the gpgrt log functions if possible.Werner Koch1-2/+2
* 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 <[email protected]>
2017-08-01gpg,sm: Error out on compliance mismatch while decrypting.Werner Koch1-18/+24
* g10/pubkey-enc.c (get_session_key): Bail out if the algo is not allowed in the current compliance mode. * sm/decrypt.c (gpgsm_decrypt): Ditto. -- The idea here is that the owner of the key created a non-compliant key and later receives a mail encrypted to that key. The sender should have checked this key too but we can't guarantee that. By hard failing here the owner of the key will notice that he had created a non-compliant key and thus has a chance to generate a new compliant key. In case the compliant criteria changes and the owner wants to decrypt an old message he can still switch gpg to another compliant mode. Fixes-commit: a0d0cbee7654ad7582400efaa92d493cd8e669e9 GnuPG-bug-id: 3308 Signed-off-by: Werner Koch <[email protected]>
2017-07-28gpg,sm: String changes for compliance diagnostics.Werner Koch1-2/+2
Signed-off-by: Werner Koch <[email protected]>
2017-07-27gpg,sm: Fix compliance checking for decryption.Werner Koch1-24/+18
* common/compliance.c (gnupg_pk_is_compliant): Remove the Elgamal signing check. We don't support Elgamal signing at all. (gnupg_pk_is_allowed) <de-vs>: Revert encryption/decryption for RSA. Check the curvenames for ECDH. * g10/pubkey-enc.c (get_session_key): Print only a warning if the key is not compliant. * sm/decrypt.c (gpgsm_decrypt): Ditto. Use the same string as in gpg so that we have only one translation. -- We always allow decryption and print only a note if the key was not complaint at the encryption site. GnuPG-bug-id: 3308 Signed-off-by: Werner Koch <[email protected]>
2017-06-23indent,i18n: Make some new strings translatable. Wrap too long lines.Werner Koch1-9/+12
--
2017-06-08common,gpg,sm: Restrict the use of algorithms according to CO_DE_VS.Justus Winter1-1/+25
* common/compliance.c (gnupg_pk_is_allowed): New function. (gnupg_cipher_is_allowed): Likewise. (gnupg_digest_is_allowed): Likewise. * common/compliance.h (enum pk_use_case): New definition. (gnupg_pk_is_allowed): New prototype. (gnupg_cipher_is_allowed): Likewise. (gnupg_digest_is_allowed): Likewise. * g10/decrypt-data.c (decrypt_data): Restrict use of algorithms using the new predicates. * g10/encrypt.c (encrypt_crypt): Likewise. * g10/gpg.c (main): Likewise. * g10/pubkey-enc.c (get_session_key): Likewise. * g10/sig-check.c (check_signature2): Likewise. * g10/sign.c (do_sign): Likewise. * sm/decrypt.c (gpgsm_decrypt): Likewise. * sm/encrypt.c (gpgsm_encrypt): Likewise. * sm/gpgsm.c (main): Likewise. * sm/sign.c (gpgsm_sign): Likewise. * sm/verify.c (gpgsm_verify): Likewise. -- With this change, policies can effectively restrict what algorithms are used for different purposes. The algorithm policy for CO_DE_VS is implemented. GnuPG-bug-id: 3191 Signed-off-by: Justus Winter <[email protected]>
2017-03-31gpg: Pass CTRL to many more functions.Werner Koch1-9/+10
-- 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 <[email protected]>
2017-03-08g10: Move more flags into the flag bitfield.Justus Winter1-1/+1
* g10/packet.h (PKT_user_id): Move 'is_primary', 'is_revoked', and 'is_expired' into the flags bitfield, and drop the prefix. * g10/call-dirmngr.c: Adapt accordingly. * g10/export.c: Likewise. * g10/getkey.c: Likewise. * g10/import.c: Likewise. * g10/kbnode.c: Likewise. * g10/keyedit.c: Likewise. * g10/keylist.c: Likewise. * g10/keyserver.c: Likewise. * g10/mainproc.c: Likewise. * g10/pkclist.c: Likewise. * g10/pubkey-enc.c: Likewise. * g10/tofu.c: Likewise. * g10/trust.c: Likewise. * g10/trustdb.c: Likewise. -- This patch has been created by applying the following semantic patch: @@ expression E; @@ -E->is_expired +E->flags.expired @@ expression E; @@ -E->is_primary +E->flags.primary @@ expression E; @@ -E->is_revoked +E->flags.revoked Signed-off-by: Justus Winter <[email protected]>
2017-03-07Remove -I option to common.NIIBE Yutaka1-4/+4
* dirmngr/Makefile.am (AM_CPPFLAGS): Remove -I$(top_srcdir)/common. * g10/Makefile.am (AM_CPPFLAGS): Ditto. * g13/Makefile.am (AM_CPPFLAGS): Ditto. * kbx/Makefile.am (AM_CPPFLAGS): Ditto. * scd/Makefile.am (AM_CPPFLAGS): Ditto. * sm/Makefile.am (AM_CPPFLAGS): Ditto. * tools/Makefile.am (AM_CPPFLAGS): Ditto. * Throughout: Follow the change. Signed-off-by: NIIBE Yutaka <[email protected]>
2017-02-28gpg: Do not require a trustdb for decryption.Werner Koch1-1/+6
* g10/trustdb.c (init_trustdb): Add and implement arg NO_CREATE. Change to return an error code. Change all callers to to pass False for NO_CREATE. (tdb_get_ownertrust): New arg NO_CREATE. Call init_trustdb to test for a non-existing trustdb. Change all callers to to pass False for NO_CREATE. (tdb_get_min_ownertrust): Ditto. * g10/trust.c (get_ownertrust_with_min): Add arg NO_CREATE. Call init_trustdb for a quick check. (get_ownertrust_info): Add arg NO_CREATE. (get_ownertrust_string): Ditto. * g10/gpgv.c (get_ownertrust_info): Adjust stub. * g10/test-stubs.c (get_ownertrust_info): Ditto. * g10/mainproc.c (list_node): Call get_ownertrust_info with NO_CREATE set. * g10/pubkey-enc.c (get_it): Ditto. -- Fixes-commit: effa80e0b5fd8cf9e31a984afe391c2406edee8b For details see mails on Feb 27 and 28 by dkg, gniibe, and Justus to gnupg-devel 'test failure on git master with decrypt-session-key.scm (and: continuous integration?)' Signed-off-by: Werner Koch <[email protected]>
2017-02-23gpg: Emit new status DECRYPTION_KEYWerner Koch1-3/+26
* common/status.h (STATUS_DECRYPTION_KEY): New. * g10/pubkey-enc.c (get_it): Emit that status. Signed-off-by: Werner Koch <[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
--
2016-04-29gpg: Remove all assert.h and s/assert/log_assert/.Werner Koch1-3/+2
Signed-off-by: Werner Koch <[email protected]>
2015-11-04gpg: Allow multiple --default-key options. Take the last available key.Neal H. Walfield1-3/+3
* g10/getkey.c (parse_def_secret_key): New function. (get_seckey_default): Add parameter ctrl. Update callers. Use parse_def_secret_key to get the default secret key, if any. (getkey_byname): Likewise. (enum_secret_keys): Likewise. * g10/options.h (opt): Change def_secret_key's type from a char * to a strlist_t. * g10/gpg.c (main): When processing --default-key, add the key to OPT.DEF_SECRET_KEY. * g10/gpgv.c (get_session_key): Add parameter ctrl. Update callers. * g10/mainproc.c (proc_pubkey_enc): Likewise. (do_proc_packets): Likewise. * g10/pkclist.c (default_recipient): Likewise. * g10/pubkey-enc.c (get_session_key): Likewise. * g10/sign.c (clearsign_file): Likewise. (sign_symencrypt_file): Likewise. * g10/skclist.c (build_sk_list): Likewise. * g10/test-stubs.c (get_session_key): Likewise. -- Signed-off-by: Neal H. Walield <[email protected]> GnuPG-bug-id: 806
2015-08-06Curve25519 support.NIIBE Yutaka1-2/+2
* 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.
2015-04-06gpg: Rename a debug macro.Werner Koch1-2/+2
* g10/options.h (DBG_CIPHER_VALUE): Rename to DBG_CRYPTO_VALUE. (DBG_CIPHER): Rename to DBG_CRYPTO.
2015-02-11Use inline functions to convert buffer data to scalars.Werner Koch1-2/+2
* 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]>
2015-01-22gpg: Replace remaining old error code macros by GPG_ERR_.Werner Koch1-6/+6
* 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 <[email protected]>
2014-10-10Use a unique capitalization for "Note:".Werner Koch1-2/+2
--
2014-04-28ECC Fixes.NIIBE Yutaka1-1/+1
* 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: Change pinentry prompt to talk about "secret key".Werner Koch1-1/+1
* g10/passphrase.c (gpg_format_keydesc): Add mode 2. Change strings. * g10/keydb.h (FORMAT_KEYDESC_NORMAL, FORMAT_KEYDESC_IMPORT) (FORMAT_KEYDESC_EXPORT): New. Use them for clarity. -- The use of the term "certificate" was more confusing than helpful.
2014-01-30gpg: Use only OpenPGP public key algo ids and add the EdDSA algo id.Werner Koch1-4/+5
* common/sexputil.c (get_pk_algo_from_canon_sexp): Change to return a string. * g10/keygen.c (check_keygrip): Adjust for change. * sm/certreqgen-ui.c (check_keygrip): Likewise. * agent/pksign.c (do_encode_dsa): Remove bogus map_pk_openpgp_to_gcry. * g10/misc.c (map_pk_openpgp_to_gcry): Remove. (openpgp_pk_test_algo): Change to a wrapper for openpgp_pk_test_algo2. (openpgp_pk_test_algo2): Rewrite. (openpgp_pk_algo_usage, pubkey_nbits): Add support for EdDSA. (openpgp_pk_algo_name): Rewrite to remove need for gcry calls. (pubkey_get_npkey, pubkey_get_nskey): Ditto. (pubkey_get_nsig, pubkey_get_nenc): Ditto. * g10/keygen.c(do_create_from_keygrip): Support EdDSA. (common_gen, gen_ecc, ask_keysize, generate_keypair): Ditto. * g10/build-packet.c (do_key): Ditto. * g10/export.c (transfer_format_to_openpgp): Ditto. * g10/getkey.c (cache_public_key): Ditto. * g10/import.c (transfer_secret_keys): Ditto. * g10/keylist.c (list_keyblock_print, list_keyblock_colon): Ditto. * g10/mainproc.c (proc_pubkey_enc): Ditto. * g10/parse-packet.c (parse_key): Ditto, * g10/sign.c (hash_for, sign_file, make_keysig_packet): Ditto. * g10/keyserver.c (print_keyrec): Use openpgp_pk_algo_name. * g10/pkglue.c (pk_verify, pk_encrypt, pk_check_secret_key): Use only OpenPGP algo ids and support EdDSA. * g10/pubkey-enc.c (get_it): Use only OpenPGP algo ids. * g10/seskey.c (encode_md_value): Ditto. -- This patch separates Libgcrypt and OpenPGP public key algorithms ids and in most cases completely removes the Libgcrypt ones. This is useful because for Libgcrypt we specify the algorithm in the S-expressions and the public key ids are not anymore needed. This patch also adds some support for PUBKEY_ALGO_EDDSA which will eventually be used instead of merging EdDSA with ECDSA. As of now an experimental algorithm id is used but the plan is to write an I-D so that we can get a new id from the IETF. Note that EdDSA (Ed25519) does not yet work and that more changes are required. The ECC support is still broken right now. Needs to be fixed. Signed-off-by: Werner Koch <[email protected]>
2014-01-29gpg: Remove cipher.h and put algo ids into a common file.Werner Koch1-1/+0
* common/openpgpdefs.h (cipher_algo_t, pubkey_algo_t, digest_algo_t) (compress_algo_t): New. * agent/gpg-agent.c: Remove ../g10/cipher.h. Add openpgpdefs.h. * g10/cipher.h (DEK): Move to ... * g10/dek.h: new file. * g10/cipher.h (is_RSA, is_ELGAMAL, is_DSA) (PUBKEY_MAX_NPKEY, PUBKEY_MAX_NSKEY, PUBKEY_MAX_NSIG, PUBKEY_MAX_NENC) (PUBKEY_USAGE_SIG, PUBKEY_USAGE_ENC, PUBKEY_USAGE_CERT) (PUBKEY_USAGE_AUTH, PUBKEY_USAGE_NONE): Move to * g10/packet.h: here. * g10/cipher.h: Remove. Remove from all files. * g10/filter.h, g10/packet.h: Include dek.h. * g10/Makefile.am (common_source): Remove cipher.h. Add dek.h. Signed-off-by: Werner Koch <[email protected]>
2013-08-28gpg: Make decryption with the OpenPGP card work.Werner Koch1-3/+3
* scd/app-common.h (APP_DECIPHER_INFO_NOPAD): New. * scd/app-openpgp.c (do_decipher): Add arg R_INFO. * scd/app-nks.c (do_decipher): Add arg R_INFO as a dummy. * scd/app.c (app_decipher): Add arg R_INFO. * scd/command.c (cmd_pkdecrypt): Print status line "PADDING". * agent/call-scd.c (padding_info_cb): New. (agent_card_pkdecrypt): Add arg R_PADDING. * agent/divert-scd.c (divert_pkdecrypt): Ditto. * agent/pkdecrypt.c (agent_pkdecrypt): Ditto. * agent/command.c (cmd_pkdecrypt): Print status line "PADDING". * g10/call-agent.c (padding_info_cb): New. (agent_pkdecrypt): Add arg R_PADDING. * g10/pubkey-enc.c (get_it): Use padding info. -- Decryption using a card never worked in gpg 2.1 because the information whether the pkcs#1 padding needs to be removed was not available. Gpg < 2.1 too this info from the secret sub key but that has gone in 2.1. Signed-off-by: Werner Koch <[email protected]>
2013-02-07gpg: Add pinentry-mode feature.Werner Koch1-1/+3
* g10/gpg.c: Include shareddefs.h. (main): Add option --pinentry-mode. * g10/options.h (struct opt): Add field pinentry_mode. * g10/passphrase.c: Include shareddefs.h. (have_static_passphrase): Take care of loopback pinentry_mode. (read_passphrase_from_fd): Ditto. (get_static_passphrase): New. (passphrase_to_dek_ext): Factor some code out to ... (emit_status_need_passphrase): new. * g10/call-agent.c (start_agent): Send the pinentry mode. (default_inq_cb): Take care of the PASSPHRASE inquiry. Return a proper error code. (agent_pksign): Add args keyid, mainkeyid and pubkey_algo. (agent_pkdecrypt): Ditto. * g10/pubkey-enc.c (get_it): Pass new args. * g10/sign.c (do_sign): Pass new args. * g10/call-agent.c (struct default_inq_parm_s): New. Change all similar structs to reference this one. Change all users and inquire callback to use this struct, instead of NULL or some undefined but not used structs. This change will help to eventually get rid of global variables. -- This new features allows to use gpg without a Pinentry. As a prerequisite the agent must be configured to allow the loopback pinentry mode (option --allow-loopback-pinentry). For example gpg2 --pinentry-mode=loopback FILE.gpg may be used to decrypt FILE.gpg while entering the passphrase on the tty. If batch is used, --passphrase et al. may be used, if --command-fd is used, the passphrase may be provided by another process. Note that there are no try-again prompts in case of a bad passphrase.
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