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Diffstat (limited to 'plugins/MirOTR/Libgcrypt/cipher/random.c')
| -rw-r--r-- | plugins/MirOTR/Libgcrypt/cipher/random.c | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/plugins/MirOTR/Libgcrypt/cipher/random.c b/plugins/MirOTR/Libgcrypt/cipher/random.c deleted file mode 100644 index 8df87e2dfa..0000000000 --- a/plugins/MirOTR/Libgcrypt/cipher/random.c +++ /dev/null @@ -1,323 +0,0 @@ -/* random.c - Random number switch - * Copyright (C) 2008 Free Software Foundation, Inc. - * - * This file is part of Libgcrypt. - * - * Libgcrypt is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License as - * published by the Free Software Foundation; either version 2.1 of - * the License, or (at your option) any later version. - * - * Libgcrypt is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -/* - This module switches between different implementations of random - number generators and provides a few help functions. - */ - -#include <config.h> -#include <stdio.h> -#include <stdlib.h> -#include <errno.h> - -#include "g10lib.h" -#include "random.h" -#include "rand-internal.h" -#include "ath.h" - - -/* If not NULL a progress function called from certain places and the - opaque value passed along. Registred by - _gcry_register_random_progress (). */ -static void (*progress_cb) (void *,const char*,int,int, int ); -static void *progress_cb_data; - - - - -/* --- Functions --- */ - - -/* Used to register a progress callback. This needs to be called - before any threads are created. */ -void -_gcry_register_random_progress (void (*cb)(void *,const char*,int,int,int), - void *cb_data ) -{ - progress_cb = cb; - progress_cb_data = cb_data; -} - - -/* This progress function is currently used by the random modules to - give hints on how much more entropy is required. */ -void -_gcry_random_progress (const char *what, int printchar, int current, int total) -{ - if (progress_cb) - progress_cb (progress_cb_data, what, printchar, current, total); -} - - - -/* Initialize this random subsystem. If FULL is false, this function - merely calls the basic initialization of the module and does not do - anything more. Doing this is not really required but when running - in a threaded environment we might get a race condition - otherwise. */ -void -_gcry_random_initialize (int full) -{ - if (fips_mode ()) - _gcry_rngfips_initialize (full); - else - _gcry_rngcsprng_initialize (full); -} - - -void -_gcry_random_dump_stats (void) -{ - if (fips_mode ()) - _gcry_rngfips_dump_stats (); - else - _gcry_rngcsprng_dump_stats (); -} - - -/* This function should be called during initialization and beore - intialization of this module to place the random pools into secure - memory. */ -void -_gcry_secure_random_alloc (void) -{ - if (fips_mode ()) - ; /* Not used; the fips rng is allows in secure mode. */ - else - _gcry_rngcsprng_secure_alloc (); -} - - -/* This may be called before full initialization to degrade the - quality of the RNG for the sake of a faster running test suite. */ -void -_gcry_enable_quick_random_gen (void) -{ - if (fips_mode ()) - ; /* Not used. */ - else - _gcry_rngcsprng_enable_quick_gen (); -} - - -void -_gcry_set_random_daemon_socket (const char *socketname) -{ - if (fips_mode ()) - ; /* Not used. */ - else - _gcry_rngcsprng_set_daemon_socket (socketname); -} - -/* With ONOFF set to 1, enable the use of the daemon. With ONOFF set - to 0, disable the use of the daemon. With ONOF set to -1, return - whether the daemon has been enabled. */ -int -_gcry_use_random_daemon (int onoff) -{ - if (fips_mode ()) - return 0; /* Never enabled in fips mode. */ - else - return _gcry_rngcsprng_use_daemon (onoff); -} - - -/* This function returns true if no real RNG is available or the - quality of the RNG has been degraded for test purposes. */ -int -_gcry_random_is_faked (void) -{ - if (fips_mode ()) - return _gcry_rngfips_is_faked (); - else - return _gcry_rngcsprng_is_faked (); -} - - -/* Add BUFLEN bytes from BUF to the internal random pool. QUALITY - should be in the range of 0..100 to indicate the goodness of the - entropy added, or -1 for goodness not known. */ -gcry_error_t -gcry_random_add_bytes (const void *buf, size_t buflen, int quality) -{ - if (fips_mode ()) - return 0; /* No need for this in fips mode. */ - else - return _gcry_rngcsprng_add_bytes (buf, buflen, quality); -} - - -/* Helper function. */ -static void -do_randomize (void *buffer, size_t length, enum gcry_random_level level) -{ - if (fips_mode ()) - _gcry_rngfips_randomize (buffer, length, level); - else - _gcry_rngcsprng_randomize (buffer, length, level); -} - -/* The public function to return random data of the quality LEVEL. - Returns a pointer to a newly allocated and randomized buffer of - LEVEL and NBYTES length. Caller must free the buffer. */ -void * -gcry_random_bytes (size_t nbytes, enum gcry_random_level level) -{ - void *buffer; - - buffer = gcry_xmalloc (nbytes); - do_randomize (buffer, nbytes, level); - return buffer; -} - - -/* The public function to return random data of the quality LEVEL; - this version of the function returns the random in a buffer allocated - in secure memory. Caller must free the buffer. */ -void * -gcry_random_bytes_secure (size_t nbytes, enum gcry_random_level level) -{ - void *buffer; - - /* Historical note (1.3.0--1.4.1): The buffer was only allocated - in secure memory if the pool in random-csprng.c was also set to - use secure memory. */ - buffer = gcry_xmalloc_secure (nbytes); - do_randomize (buffer, nbytes, level); - return buffer; -} - - -/* Public function to fill the buffer with LENGTH bytes of - cryptographically strong random bytes. Level GCRY_WEAK_RANDOM is - not very strong, GCRY_STRONG_RANDOM is strong enough for most - usage, GCRY_VERY_STRONG_RANDOM is good for key generation stuff but - may be very slow. */ -void -gcry_randomize (void *buffer, size_t length, enum gcry_random_level level) -{ - do_randomize (buffer, length, level); -} - - -/* This function may be used to specify the file to be used as a seed - file for the PRNG. This fucntion should be called prior to the - initialization of the random module. NAME may not be NULL. */ -void -_gcry_set_random_seed_file (const char *name) -{ - if (fips_mode ()) - ; /* No need for this in fips mode. */ - else - _gcry_rngcsprng_set_seed_file (name); -} - - -/* If a seed file has been setup, this function may be used to write - back the random numbers entropy pool. */ -void -_gcry_update_random_seed_file (void) -{ - if (fips_mode ()) - ; /* No need for this in fips mode. */ - else - _gcry_rngcsprng_update_seed_file (); -} - - - -/* The fast random pool function as called at some places in - libgcrypt. This is merely a wrapper to make sure that this module - is initalized and to lock the pool. Note, that this function is a - NOP unless a random function has been used or _gcry_initialize (1) - has been used. We use this hack so that the internal use of this - function in cipher_open and md_open won't start filling up the - random pool, even if no random will be required by the process. */ -void -_gcry_fast_random_poll (void) -{ - if (fips_mode ()) - ; /* No need for this in fips mode. */ - else - _gcry_rngcsprng_fast_poll (); -} - - - -/* Create an unpredicable nonce of LENGTH bytes in BUFFER. */ -void -gcry_create_nonce (void *buffer, size_t length) -{ - if (fips_mode ()) - _gcry_rngfips_create_nonce (buffer, length); - else - _gcry_rngcsprng_create_nonce (buffer, length); -} - - -/* Run the self-tests for the RNG. This is currently only implemented - for the FIPS generator. */ -gpg_error_t -_gcry_random_selftest (selftest_report_func_t report) -{ - if (fips_mode ()) - return _gcry_rngfips_selftest (report); - else - return 0; /* No selftests yet. */ -} - - -/* Create a new test context for an external RNG test driver. On - success the test context is stored at R_CONTEXT; on failure NULL is - stored at R_CONTEXT and an error code is returned. */ -gcry_err_code_t -_gcry_random_init_external_test (void **r_context, - unsigned int flags, - const void *key, size_t keylen, - const void *seed, size_t seedlen, - const void *dt, size_t dtlen) -{ - (void)flags; - if (fips_mode ()) - return _gcry_rngfips_init_external_test (r_context, flags, key, keylen, - seed, seedlen, - dt, dtlen); - else - return GPG_ERR_NOT_SUPPORTED; -} - -/* Get BUFLEN bytes from the RNG using the test CONTEXT and store them - at BUFFER. Return 0 on success or an error code. */ -gcry_err_code_t -_gcry_random_run_external_test (void *context, char *buffer, size_t buflen) -{ - if (fips_mode ()) - return _gcry_rngfips_run_external_test (context, buffer, buflen); - else - return GPG_ERR_NOT_SUPPORTED; -} - -/* Release the test CONTEXT. */ -void -_gcry_random_deinit_external_test (void *context) -{ - if (fips_mode ()) - _gcry_rngfips_deinit_external_test (context); -} |