Willie Solano / mbedtls-slave-prot-prod

mbed TLS Build

Dependents:   Slave-prot-prod

doxygen/input/doc_rng.h@1:1a219dea6cb5, 2019-06-04 (annotated)

Committer:
williequesada
Date:
Tue Jun 04 16:03:38 2019 +0000
Revision:
1:1a219dea6cb5
Parent:
0:cdf462088d13 
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markrad 0:cdf462088d13 1 /**
markrad 0:cdf462088d13 2 * @file
markrad 0:cdf462088d13 3 * Random number generator (RNG) module documentation file.
markrad 0:cdf462088d13 4 *
markrad 0:cdf462088d13 5 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
markrad 0:cdf462088d13 6 * SPDX-License-Identifier: Apache-2.0
markrad 0:cdf462088d13 7 *
markrad 0:cdf462088d13 8 * Licensed under the Apache License, Version 2.0 (the "License"); you may
markrad 0:cdf462088d13 9 * not use this file except in compliance with the License.
markrad 0:cdf462088d13 10 * You may obtain a copy of the License at
markrad 0:cdf462088d13 11 *
markrad 0:cdf462088d13 12 * http://www.apache.org/licenses/LICENSE-2.0
markrad 0:cdf462088d13 13 *
markrad 0:cdf462088d13 14 * Unless required by applicable law or agreed to in writing, software
markrad 0:cdf462088d13 15 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
markrad 0:cdf462088d13 16 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
markrad 0:cdf462088d13 17 * See the License for the specific language governing permissions and
markrad 0:cdf462088d13 18 * limitations under the License.
markrad 0:cdf462088d13 19 *
markrad 0:cdf462088d13 20 * This file is part of mbed TLS (https://tls.mbed.org)
markrad 0:cdf462088d13 21 */
markrad 0:cdf462088d13 22
markrad 0:cdf462088d13 23 /**
markrad 0:cdf462088d13 24 * @addtogroup rng_module Random number generator (RNG) module
markrad 0:cdf462088d13 25 *
markrad 0:cdf462088d13 26 * The Random number generator (RNG) module provides random number
markrad 0:cdf462088d13 27 * generation, see \c mbedtls_ctr_drbg_random().
markrad 0:cdf462088d13 28 *
markrad 0:cdf462088d13 29 * The block-cipher counter-mode based deterministic random
markrad 0:cdf462088d13 30 * bit generator (CTR_DBRG) as specified in NIST SP800-90. It needs an external
markrad 0:cdf462088d13 31 * source of entropy. For these purposes \c mbedtls_entropy_func() can be used.
markrad 0:cdf462088d13 32 * This is an implementation based on a simple entropy accumulator design.
markrad 0:cdf462088d13 33 *
markrad 0:cdf462088d13 34 * The other number generator that is included is less strong and uses the
markrad 0:cdf462088d13 35 * HAVEGE (HArdware Volatile Entropy Gathering and Expansion) software heuristic
markrad 0:cdf462088d13 36 * which considered unsafe for primary usage, but provides additional random
markrad 0:cdf462088d13 37 * to the entropy pool if enables.
markrad 0:cdf462088d13 38 *
markrad 0:cdf462088d13 39 * Meaning that there seems to be no practical algorithm that can guess
markrad 0:cdf462088d13 40 * the next bit with a probability larger than 1/2 in an output sequence.
markrad 0:cdf462088d13 41 *
markrad 0:cdf462088d13 42 * This module can be used to generate random numbers.
markrad 0:cdf462088d13 43 */