Commit Graph

775 Commits

Author SHA1 Message Date
NIIBE Yutaka c03e0eb01d agent: Fix error from do_encryption.
* agent/protect.c (do_encryption): Don't mask failure of OUTBUF
allocation.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-05-31 18:42:55 +09:00
NIIBE Yutaka 996544626e agent: Fix memory leaks.
* agent/divert-scd.c (ask_for_card): Free WANT_KID and WANT_SN_DISP.
* agent/gpg-agent.c (create_server_socket): Free UNADDR.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-05-30 13:56:20 +09:00
Justus Winter 525f2c482a
agent: Make digest algorithms for ssh fingerprints configurable.
* agent/agent.h (opt): New field 'ssh_fingerprint_digest'.
* agent/command-ssh.c (data_sign, ssh_identity_register): Honor the
option for strings used to communicate with the user.
* agent/findkey.c (agent_modify_description): Likewise.
* agent/gpg-agent.c (cmd_and_opt_values): New value.
(opts): New option '--ssh-fingerprint-digest'.
(parse_rereadable_options): Set the default to MD5 for now.
(main): Handle the new option.
* doc/gpg-agent.texi: Document the new option.
--

OpenSSH has transitioned from using MD5 to compute key fingerprints to
SHA256.  This patch makes the digest used when communicating key
fingerprints to the user (e.g. in pinentry dialogs) configurable.
For now this patch conservatively defaults to MD5.

GnuPG-bug-id: 2106
Signed-off-by: Justus Winter <justus@g10code.com>
2017-05-24 18:09:07 +02:00
Justus Winter a5f046d99a
agent: Write both ssh fingerprints to 'sshcontrol' file.
* agent/command-ssh.c (add_control_entry): Hand in the key, write both
the MD5- and the SHA256-based fingerprint to the 'sshcontrol' file
when adding ssh keys.
(ssh_identity_register): Adapt callsite.

GnuPG-bug-id: 2106
Signed-off-by: Justus Winter <justus@g10code.com>
2017-05-24 17:32:58 +02:00
Justus Winter 3ac1a9d3a0
common: Support different digest algorithms for ssh fingerprints.
* common/ssh-utils.c (get_fingerprint): Add and honor 'algo' parameter.
(ssh_get_fingerprint{,_string}): Likewise.
* common/ssh-utils.h (ssh_get_fingerprint{,_string}): Update prototypes.
* common/t-ssh-utils.c (main): Adapt accordingly.
* agent/command-ssh.c (agent_raw_key_from_file): Likewise.
(ssh_identity_register): Likewise.
* agent/command.c (do_one_keyinfo): Likewise.
* agent/findkey.c (modify_description): Likewise.
--
This lays the foundation to support other algorithms.

GnuPG-bug-id: 2106
Signed-off-by: Justus Winter <justus@g10code.com>
2017-05-24 17:01:48 +02:00
NIIBE Yutaka 509e4a4d74 agent: Add const qualifier for read-only table.
* 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 <gniibe@fsij.org>
2017-05-23 06:42:44 +09:00
Justus Winter f4365790da
tests: Make it possible to run all tests using our infrastructure.
* Makefile.am (TESTS_ENVIRONMENT): New variable.
(check-all): New phony target to run all tests.
* tests/gpgme/gpgme-defs.scm (have-gpgme?): New function that tests
whether the GPGME test suite is available instead of exiting the
process.
* tests/gpgscm/init.scm (export): New macro.
* tests/gpgscm/tests.scm (run-tests): New function.
(load-tests): Likewise.
* tests/gpgme/run-tests.scm: Simplify and move the parsing of the list
of tests to 'all-tests.scm'.
* tests/gpgsm/run-tests.scm: Likewise.
* tests/migrations/run-tests.scm: Likewise.
* tests/openpgp/run-tests.scm: Likewise.
* tests/gpgme/Makefile.am: To select the tests to run, use the
variable 'TESTS'.  This harmonizes the interface with the automake
test suite.
* tests/gpgsm/Makefile.am: Likewise.
* tests/migrations/Makefile.am: Likewise.
* tests/openpgp/Makefile.am: Likewise.
* tests/openpgp/README: Likewise.
* agent/all-tests.scm: New file.
* common/all-tests.scm: Likewise.
* g10/all-tests.scm: Likewise.
* g13/all-tests.scm: Likewise.
* tests/gpgme/all-tests.scm: Likewise.
* tests/gpgsm/all-tests.scm: Likewise.
* tests/migrations/all-tests.scm: Likewise.
* tests/openpgp/all-tests.scm: Likewise.
* tests/run-tests.scm: Likewise.
--

This change allows us to run all tests in parallel and write one XML
report capturing the results of every test.  It also lays the
foundation to parametrize test suites.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-05-11 18:12:37 +02:00
NIIBE Yutaka 5c8fe54809 Spelling fixes in docs and comments.
--

In addition, fix trailing spaces in tests/inittests.

GnuPG-bug-id: 3121
Reported-by: ka7 (klemens)
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-28 10:06:33 +09:00
NIIBE Yutaka 9296aed4bd agent: More minor change.
* agent/command.c (cmd_pksign): Remove redundant assignment.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-17 20:03:36 +09:00
NIIBE Yutaka 45c52cca14 agent: Minor cleanup.
* agent/command-ssh.c (ssh_key_to_protected_buffer): Not touch ERR.
* agent/command.c (cmd_genkey, cmd_import_key): Clean up.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-17 16:43:36 +09:00
NIIBE Yutaka 36c4e540f1 agent: Clean up error initialize/return.
* agent/call-pinentry.c (start_pinentry): Return RC.
* agent/command-ssh.c (ssh_handler_request_identities): Don't set ERR.
* agent/findkey.c (try_unprotect_cb): Return ERR.
(unprotect): Don't set RC.
* agent/gpg-agent.c (handle_connections): Don't set fd.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-14 12:54:06 +09:00
NIIBE Yutaka c64763c3a7 agent: Simplify stream_read_cstring.
* agent/command-ssh.c (stream_read_cstring): Just call
stream_read_string.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-12 09:24:48 +09:00
NIIBE Yutaka 170660ed11 agent: Use "ll" length specifier when time_t is larger.
* agent/command.c (cmd_keytocard): Use KEYTOCARD_TIMESTAMP_FORMAT.

--

On a big-endian 32-bit platform which uses 64-bit time_t, it might go
wrong.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-10 15:04:57 +09:00
NIIBE Yutaka ebe12be034 agent: Serialize access to passphrase cache.
* agent/cache.c (encryption_lock): Remove.
(cache_lock): New.  Now, we have coarse grain lock to serialize
entire cache access.
(initialize_module_cache): Use CACHE_LOCK.
(init_encryption, new_data): Remove ENCRYPTION_LOCK.
(agent_flush_cache, agent_put_cache, agent_get_cache): Lock the cache.

--

GnuPG-bug-id: 3027
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-07 08:39:26 +09:00
NIIBE Yutaka 5744d2038b agent: Minor fix for get_client_pid.
* agent/command-ssh.c (get_client_pid): Use 0 to initialize.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-04 10:39:00 +09:00
Werner Koch d23052b04e
gpgconf: Add --enable-extended-key-format for the agent.
* tools/gpgconf-conf.c: Add option.
* agent/gpg-agent.c (main) <aGPGConfList>: Add option.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-04-03 16:54:43 +02:00
Werner Koch d24375271b
agent: Use OCB for key protection with --enable-extended-key-format.
* 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 <wk@gnupg.org>
2017-04-02 20:02:55 +02:00
Werner Koch 2c237c1362
agent: New option --enable-extended-key-format.
* agent/gpg-agent.c (oEnableExtendedKeyFormat): New const.
(opts): New option --enable-extended-key-format.
(parse_rereadable_options): Set option
* agent/findkey.c (write_extended_private_key): Add arg 'update'.
(agent_write_private_key): Implement new option.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-03-24 10:35:36 +01:00
Werner Koch 6fab7bba87
agent: New option --stub-only for DELETE_KEY
* agent/findkey.c (agent_delete_key): Add arg 'only_stubs'.
* agent/command.c (cmd_delete_key): Add option --stub-only.
--

This option can be used to savely remove stub keys.
2017-03-24 09:02:30 +01:00
NIIBE Yutaka 8c8ce8711d agent,g10: Remove redundant SERIALNO request.
* agent/learncard.c (agent_handle_learn): Don't call
agent_card_serialno.  Get the serialno in status response.
* g10/call-agent.c (agent_scd_learn): Don't request "SCD SERIALNO".
(agent_scd_serialno): New.
(card_cardlist_cb, agent_scd_cardlist): New.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-03-16 14:32:51 +09:00
NIIBE Yutaka 176e07ce10 agent: Resolve conflict of util.h.
* 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 <gniibe@fsij.org>
2017-03-07 19:22:48 +09:00
NIIBE Yutaka bf03925751 agent: Add include files.
* agent/command-ssh.c: Add sys/socket.h and sys/un.h.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-03-07 14:22:34 +09:00
NIIBE Yutaka f7f806afa5 agent: Fix get_client_pid for portability.
* configure.ac: Simply check getpeerucred and ucred.h, and structure
members.
* agent/command-ssh.c: Include ucred.h.
(get_client_pid) [HAVE_STRUCT_SOCKPEERCRED_PID]: Use sockpeercred
structure for OpenBSD.
[LOCAL_PEERPID]: Use LOCAL_PEERPID for macOS.
[LOCAL_PEEREID]: Use LOCAL_PEEREID for NetBSD.
[HAVE_GETPEERUCRED]: Use getpeerucred for OpenSolaris.

--

This change also addresses following bug.

GnuPG-bug-id: 2981.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-03-07 14:06:35 +09:00
NIIBE Yutaka 4ce4f2f683 agent: For SSH, robustly handling scdaemon's errors.
* agent/command-ssh.c (card_key_list): Return 0 when
agent_card_serialno returns an error.
(ssh_handler_request_identities): Handle errors for card listing
and proceed to other cases.
--

GnuPG-bug-id: 2980

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-03-06 10:30:57 +09:00
Werner Koch d6f0f36876
agent: Improve error message for the KEYTOCARD command.
* agent/command.c (cmd_keytocard): Always use leave_cmd.  Simplify
timestamp checking and do an early test with an appropriate error
message.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-03-02 12:29:31 +01:00
Werner Koch f98c8cb013
scd,agent: Improve the OpenPGP PIN prompt texts.
* scd/app-openpgp.c (get_prompt_info): Change texts.
* agent/call-pinentry.c (struct entry_features): New.
(getinfo_features_cb): New.
(start_pinentry): Set new fucntion as status callback.
(build_cmd_setdesc): New.  Replace all snprintf for SETDESC by this
one.
--

Suggested-by: Andre Heinecke
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-02-22 18:51:02 +01:00
Werner Koch e3944f34e3
scd: Improve the prompts for OpenPGP cards.
* scd/app-openpgp.c (get_disp_name): New.
(get_disp_serialno): New.
(get_prompt_info): New.
(build_enter_admin_pin_prompt): Rework the prompt texts.  Factor some
code out to ...
(get_remaining_tries): New.
(verify_a_chv): Print a remaining counter also for the standard PIN.
Rework the prompt texts.

* agent/divert-scd.c (ask_for_card): Pretty format an OpenPGP serial
no.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-02-22 15:48:33 +01:00
Werner Koch 6488ffb767
agent: Prepend the description to a PIN prompt.
* agent/divert-scd.c (has_percent0A_suffix): New.
(getpin_cb): Prepend DESC_TEXT to the prompt.
* agent/findkey.c (modify_description): Rename to ...
(agent_modify_description): this.  MAke global.  Add kludge to remove
empty parentheses from the end.
(agent_key_from_file, agent_delete_key): Adjust for above change.
* agent/pksign.c (agent_pksign_do): Modify DESC_TEXT also when
diverting to a card.
--

Now that we have support for multiple tokens, it is important to show
information on which key has been requested.  Without that it may
happen that the PIN for a wrong card is accidentally entered.

The texts are a bit ugly, because they talk about "passphrase" but
later about entering a PIN.

A quick hack would be to s/passphrase/PIN/ in the description but that
is complicated due to i18n.  Another solution might be never to talk
about PINs in the description but always about "passphrase: and only
use "PIN" or "passphrase" on the left of the entry field.
2017-02-22 11:04:55 +01:00
Werner Koch 78d875a0f8
agent: Prepare to pass an additional parameter to the getpin callback.
* agent/call-scd.c (writekey_parm_s, inq_needpin_s): Merge into ...
(inq_needpin_parm_s): new struct.  Add new field 'getpin_cb_desc'.
Change users to set all fields.
(inq_needpin): Pass GETPIN_CB_DESC to the GETPIN_CB.
(agent_card_pksign): Add arg 'desc_text' and change arg 'getpin_cb' to
take an additional arg 'desc_text'.
(agent_card_pkdecrypt): Ditto.
(agent_card_writekey): Change arg 'getpin_cb' to take an additional
arg 'desc_text'.
(agent_card_scd): Ditto.
* agent/divert-scd.c (getpin_cb): Add new arg 'desc_text'.
(divert_pksign): Add new arg 'desc_text' and pass is to
agent_card_pksign.
(divert_pkdecrypt): Add new arg 'desc_text' and pass is to
agent_card_pkdecrypt.
* agent/pkdecrypt.c (agent_pkdecrypt): Pass DESC_TEXT to
divert_pkdecrypt.
* agent/pksign.c (agent_pksign_do):  Pass DESC_TEXT to
divert_pksign.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-02-22 09:40:50 +01:00
Daniel Kahn Gillmor ccb420380b Fix spelling.
--

Clean up several other misspellings noticed while reviewing Yuri's
de-duplication patch.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2017-02-21 13:11:46 -05:00
Yuri Chornoivan 24cf0606b4 Clean up word replication.
--

This fixes extra word repetitions (like "the the" or "is is") in the
code and docs.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2017-02-21 13:11:46 -05:00
NIIBE Yutaka dea4b3c742 agent: No cards is not an error.
* agent/command-ssh.c (card_key_list): Care the case of no cards.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-02-17 20:02:38 +09:00
NIIBE Yutaka 3f4f64b6ac agent: Send back all public keys for available cards.
* agent/call-scd.c (card_cardlist_cb, agent_card_cardlist): New.
* agent/command-ssh.c (card_key_list): New.
(ssh_handler_request_identities): Call card_key_list and loop for the
list to send public keys for all available cards.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-02-17 19:46:01 +09:00
Werner Koch 042fe711c7
agent: Tell pinentry the hostname the agent is running on.
* agent/call-pinentry.c [!W32]: Incluse utsname.h
(start_pinentry): Pass nodename to OPTION/owner.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-02-03 21:16:26 +01:00
Werner Koch 309f464a59
agent: Tell the Pinentry the client's pid.
* configure.ac: Check for SO_PEERCRED et al.
* agent/agent.h (server_control_s): Add field 'client_pid'.
* agent/command.c (start_command_handler): Set CLIENT_PID.
* agent/command-ssh.c (get_client_pid): New.
(start_command_handler_ssh): Set CLIENT_PID.
* agent/call-pinentry.c (start_pinentry): Tell Pinentry the client-pid.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-02-03 17:13:08 +01:00
Werner Koch 7052a0d77c
gpg: More diagnostics for a launched pinentry.
* agent/call-pinentry.c (start_pinentry): Call getinfo/ttyinfo.
* g10/server.c (gpg_proxy_pinentry_notify): Simplify the output so
that we do not change the code when adding new fields to
PINENTRY_LAUNCHED.
--

This patch changes the --verbose output of gpg to show
for example

  gpg: pinentry launched (5228 gtk2 1.0.1-beta10 \
  /dev/pts/4 xterm localhost:10.0)

the used tty, its type, and the value of DISPLAY in addiion to the
pid, flavor, and version.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-02-03 12:05:16 +01:00
Werner Koch f518196ca6
Fix explanation of commit e175152ef7.
--
2017-02-01 08:18:44 +01:00
Werner Koch 1ec7dc4e55
Explain commit e175152ef7.
--
2017-01-30 12:08:30 +01:00
Justus Winter e175152ef7 agent: Fix double free.
* agent/cache.c (agent_store_cache_hit): Make sure the update is
atomic.
--
Previously, the function freed the last key, and duplicated the new
key after doing that.  There is a chance, however, that calling the
allocator surrenders control to a different thread, causing a double
free if a different thread also calls this function.

To make sure the update is atomic under the non-preemptive thread
model, we must make sure not to surrender control to a different
thread.  Therefore, we avoid calling the allocator during the
update.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-01-25 13:51:57 +01:00
Werner Koch 707c47f559
Update copyright notices for 2017.
--

Also some http:// -> https:// fixes.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-01-23 19:16:55 +01:00
Werner Koch 3d356d165a
agent: Reduce sleep time in the progress callback.
* agent/gpg-agent.c (agent_libgcrypt_progress_cb): Reduce sleep time
from 100ms to 1ms or use gpgrt_yield when build against a recent
libgpg-error.
--

Debian-bug-id: 851298
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-01-18 10:13:18 +01:00
NIIBE Yutaka 0801f49b0d agent: Ask specific SERIALNO for pksign/pkdecrypt.
* agent/call-scd.c (agent_card_serialno): Add DEMAND argument.
* agent/command-ssh.c (card_key_available): Follow the change.
* agent/learncard.c (agent_handle_learn): Likewise.
* agent/divert-scd.c (ask_for_card): Use DEMAND argument.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-01-16 10:33:08 +09:00
Werner Koch 8d774904c8
agent,w32: Fix annoying output to DebugView.
* agent/gpg-agent.c (startup_fd_list): Do not define for W32.
(main) [W32]: Do not call get_all_open_fds.
--

GnuPG-bug-id: 2267
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-01-06 18:47:53 +01:00
Werner Koch e384405b6e
Remove unused debug flags and add "dns" and "network".
* g10/options.h (DBG_CARD_IO_VALUE, DBG_CARD_IO): Remove.
* g10/gpg.c (debug_flags): Remove "cardio".
* agent/agent.h (DBG_COMMAND_VALUE, DBG_COMMAND): Remove.
* agent/gpg-agent.c (debug_flags): Remove "command".
* scd/scdaemon.h (DBG_COMMAND_VALUE, DBG_COMMAND): Remove.
* scd/scdaemon.c (debug_flags): Remove "command".
* dirmngr/dirmngr.h (DBG_DNS_VALUE, DBG_DNS): New.
(DBG_NETWORK_VALUE, DNG_NETWORK): New.
* dirmngr/dirmngr.c (debug_flags): Add "dns" and "network".
--

Note that "dns" and "network" are not yet used but will soon be added
to dirmngr.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-12-19 09:41:15 +01:00
Daniel Kahn Gillmor 8636ad5023 agent: Respect --enable-large-secmem
* agent/gpg-agent.c (main): Initialize secmem to the configured buffer
size.

--

This patch is a step toward addressing
GnuPG-bug-id: 2857

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2016-12-06 11:02:47 -05:00
Werner Koch aa6ab9e0bc
agent,dirmngr: Tiny restructuring.
* agent/gpg-agent.c (handle_connections): Add a comment.
* dirmngr/dirmngr.c (main): Move assuan_sock_close of the listening
socket to ...
(handle_connections): here.  Add a comment why we keep the
listening socket open during a shutdown.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-29 20:35:23 +01:00
Werner Koch 854adc8ae1
agent,dirmngr: Handle corner case in shutdown mode.
* agent/gpg-agent.c (handle_connections): Keep on selecting on the
inotify fd even when a shutdown is pending.
* dirmngr/dirmngr.c (handle_connections): Ditto.  Also simplifyy the
use of the HAVE_INOTIFY_INIT cpp conditional.
--

Without that patch we won't notice a removed socket when a shutdown is
pending.  This is somewhat related to bug report 2849.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-29 20:17:03 +01:00
Werner Koch 81d6e98cdf
agent,w32: Initialize nPth in server mode.
* agent/gpg-agent.c (main) [W32]: Call initialize_modules in server
mode.
--

Fixes-commit: 9a707a223a
Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-29 16:54:36 +01:00
NIIBE Yutaka 9a707a223a agent: Fix npth + daemon mode problem.
* agent/gpg-agent.c (main): Remove duplicated initialization in daemon
mode.

--
The commit f57dc2b1e6 fixes a part of
problem (for missing initialization of supervised mode).  It was
actually put in wrong place.

Fixes-commit: 9f92b62a51
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-11-21 11:18:33 +09:00
Werner Koch 6bf6981972
agent: Improve concurrency when Libgcrypt 1.8 is used.
* agent/gpg-agent.c (thread_init_once): Tell Libgcrypt to reinit the
system call clamp.
(agent_libgcrypt_progress_cb): Do not sleep if Libgcrypt is recent
enough.
--

This patch prepares for a feature comming with Libgcrypt 1.8.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-12 11:03:10 +01:00