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2015-12-02random: Drop fake entropy gathering function.Justus Winter1-53/+3
* random/random-csprng.c (faked_rng): Drop variable. (gather_faked): Drop prototype and function. (initialize): Drop fallback code. (_gcry_rngcsprng_is_faked): Change accordingly. -- The fake entropy gathering function is deemed too dangerous to be used by accident, and is therefore removed. This reverts commit 468a5796ffb1a7776db4004d534376c1b981d740. Signed-off-by: Justus Winter <justus@g10code.com>
2015-12-02random: Fix selection of entropy gathering function.Justus Winter1-2/+2
* random/random-csprng.c (getfnc_gather_random): Do return NULL if no usable entropy gathering function is found. The callsite then installs the fake gather function. Signed-off-by: Justus Winter <justus@g10code.com>
2015-11-17Fix typos found using codespellJustus Winter1-3/+3
* cipher/cipher-ocb.c: Fix typos. * cipher/des.c: Likewise. * cipher/dsa-common.c: Likewise. * cipher/ecc.c: Likewise. * cipher/pubkey.c: Likewise. * cipher/rsa-common.c: Likewise. * cipher/scrypt.c: Likewise. * random/random-csprng.c: Likewise. * random/random-fips.c: Likewise. * random/rndw32.c: Likewise. * src/cipher-proto.h: Likewise. * src/context.c: Likewise. * src/fips.c: Likewise. * src/gcrypt.h.in: Likewise. * src/global.c: Likewise. * src/sexp.c: Likewise. * tests/mpitests.c: Likewise. * tests/t-lock.c: Likewise. Signed-off-by: Justus Winter <justus@g10code.com>
2015-05-21random: Change initial extra seeding from 2400 bits to 128 bits.Werner Koch1-2/+2
* random/random-csprng.c (read_pool): Reduce initial seeding. -- See discussion starting at https://lists.gnupg.org/pipermail/gnupg-devel/2015-April/029750.html and also in May. Signed-off-by: Werner Koch <wk@gnupg.org>
2014-12-25random-csprng: fix compiler warnings on ARMJussi Kivilinna1-2/+2
* random/random-csprng.c (_gcry_rngcsprng_update_seed_file) (read_pool): Cast keypool and rndpool to 'unsigned long *' through 'void *'. -- Patch fixes 'cast increases required alignment' warnings seen on GCC: random-csprng.c: In function '_gcry_rngcsprng_update_seed_file': random-csprng.c:867:15: warning: cast increases required alignment of target type [-Wcast-align] for (i=0,dp=(unsigned long*)keypool, sp=(unsigned long*)rndpool; ^ random-csprng.c:867:43: warning: cast increases required alignment of target type [-Wcast-align] for (i=0,dp=(unsigned long*)keypool, sp=(unsigned long*)rndpool; ^ random-csprng.c: In function 'read_pool': random-csprng.c:1023:14: warning: cast increases required alignment of target type [-Wcast-align] for(i=0,dp=(unsigned long*)keypool, sp=(unsigned long*)rndpool; ^ random-csprng.c:1023:42: warning: cast increases required alignment of target type [-Wcast-align] for(i=0,dp=(unsigned long*)keypool, sp=(unsigned long*)rndpool; ^ Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
2014-01-16Replace ath based mutexes by gpgrt based locks.Werner Koch1-10/+5
* configure.ac (NEED_GPG_ERROR_VERSION): Require 1.13. (gl_LOCK): Remove. * src/ath.c, src/ath.h: Remove. Remove from all files. Replace all mutexes by gpgrt based statically initialized locks. * src/global.c (global_init): Remove ath_init. (_gcry_vcontrol): Make ath install a dummy function. (print_config): Remove threads info line. * doc/gcrypt.texi: Simplify the multi-thread related documentation. -- The current code does only work on ELF systems with weak symbol support. In particular no locks were used under Windows. With the new gpgrt_lock functions from the soon to be released libgpg-error 1.13 we have a better portable scheme which also allows for static initialized mutexes. Signed-off-by: Werner Koch <wk@gnupg.org>
2013-12-12Remove macro hacks for internal vs. external functions. Part 2 and last.Werner Koch1-7/+7
* src/visibility.h: Remove remaining define/undef hacks for symbol visibility. Add macros to detect the use of the public functions. Change all affected functions by replacing them by the x-macros. * src/g10lib.h: Add internal prototypes. (xtrymalloc, xtrycalloc, xtrymalloc_secure, xtrycalloc_secure) (xtryrealloc, xtrystrdup, xmalloc, xcalloc, xmalloc_secure) (xcalloc_secure, xrealloc, xstrdup, xfree): New macros. -- The use of xmalloc/xtrymalloc/xfree is a more common pattern than the gcry_free etc. functions. Those functions behave like those defined by C and thus for better readability we use these macros and not the underscore prefixed functions. Signed-off-by: Werner Koch <wk@gnupg.org>
2013-12-11random: Add a feature to close device file descriptors.Werner Koch1-1/+15
* src/gcrypt.h.in (GCRYCTL_CLOSE_RANDOM_DEVICE): New. * src/global.c (_gcry_vcontrol): Call _gcry_random_close_fds. * random/random.c (_gcry_random_close_fds): New. * random/random-csprng.c (_gcry_rngcsprng_close_fds): New. * random/random-fips.c (_gcry_rngfips_close_fds): New. * random/random-system.c (_gcry_rngsystem_close_fds): New. * random/rndlinux.c (open_device): Add arg retry. (_gcry_rndlinux_gather_random): Add mode to close open fds. * tests/random.c (check_close_random_device): New. (main): Call new test. Signed-off-by: Werner Koch <wk@gnupg.org>
2012-12-03Move nonce creation from csprng backend to random main module.Werner Koch1-96/+1
* random/random-csprng.c (_gcry_rngcsprng_create_nonce): Remove. (nonce_buffer_lock): Remove. (initialize_basics): Remove init of nonce_buffer_lock. * random/random.c: Add a few header files. (nonce_buffer_lock): New. (_gcry_random_initialize): Init nonce_buffer_lock. (gcry_create_nonce): Add code from _gcry_rngcsprng_create_nonce. * random/random-daemon.c (_gcry_daemon_create_nonce): Remove. -- The nonce generation code is useful for all RNG types and thus it should be in random.c. The only exception is the fips-mode, which requires the use of the fips nonce generator.
2011-12-01Completed switch to a simpler thread model.Werner Koch1-2/+2
This is only a first step. We will need to either implement pthread_atfork or - better - make use use POSIX RT semaphores.
2011-02-04Nuked almost all trailing whitespace.Werner Koch1-50/+50
Check and install the standard git pre-commit hook.
2010-08-19Fix bug 1263Werner Koch1-0/+2
2010-04-12Applied spelling fixes and more verbose test diagnositcs by Brad Hards.Werner Koch1-6/+6
2010-03-24Added an entropy gatherer for W32CE.Werner Koch1-1/+9
2010-01-21Support WindowsCE.Werner Koch1-1/+2
2008-12-05Fixed error cases in mpicoder.Werner Koch1-4/+10
Documentation cleanups.
2008-08-29Changed the way the FIPS RNG is seeded.Werner Koch1-4/+8
FIPS cleanups. Documentation upodates.
2008-08-20Replace assert calls by a new gcry_assert at most places.Werner Koch1-10/+9
2008-08-19A whole bunch of changes to eventually support Werner Koch1-0/+1388
FIPS restricted mode. Also some documentation improvements and other minor enhancements. See the ChangeLogs. Stay tuned.
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