| /** |
| * \file doc_rng.h |
| * |
| * \brief Random number generator (RNG) module documentation file. |
| */ |
| /* |
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| * Copyright The Mbed TLS Contributors |
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| |
| /** |
| * @addtogroup rng_module Random number generator (RNG) module |
| * |
| * The Random number generator (RNG) module provides random number |
| * generation, see \c mbedtls_ctr_drbg_random(). |
| * |
| * The block-cipher counter-mode based deterministic random |
| * bit generator (CTR_DBRG) as specified in NIST SP800-90. It needs an external |
| * source of entropy. For these purposes \c mbedtls_entropy_func() can be used. |
| * This is an implementation based on a simple entropy accumulator design. |
| * |
| * The other number generator that is included is less strong and uses the |
| * HAVEGE (HArdware Volatile Entropy Gathering and Expansion) software heuristic |
| * which considered unsafe for primary usage, but provides additional random |
| * to the entropy pool if enables. |
| * |
| * Meaning that there seems to be no practical algorithm that can guess |
| * the next bit with a probability larger than 1/2 in an output sequence. |
| * |
| * This module can be used to generate random numbers. |
| */ |