| Paul Bakker | 37ca75d | 2011-01-06 12:28:03 +0000 | [diff] [blame] | 1 | /** |
| 2 | * @file |
| 3 | * Random number generator (RNG) module documentation file. |
| 4 | */ |
| 5 | |
| 6 | /** |
| 7 | * @addtogroup rng_module Random number generator (RNG) module |
| Paul Bakker | 6083fd2 | 2011-12-03 21:45:14 +0000 | [diff] [blame] | 8 | * |
| Paul Bakker | dcbfdcc | 2013-09-10 16:16:50 +0200 | [diff] [blame] | 9 | * The Random number generator (RNG) module provides random number |
| 10 | * generation, see \c ctr_dbrg_random(). |
| 11 | * |
| 12 | * The block-cipher counter-mode based deterministic random |
| Paul Bakker | 6083fd2 | 2011-12-03 21:45:14 +0000 | [diff] [blame] | 13 | * bit generator (CTR_DBRG) as specified in NIST SP800-90. It needs an external |
| 14 | * source of entropy. For these purposes \c entropy_func() can be used. This is |
| 15 | * an implementation based on a simple entropy accumulator design. |
| 16 | * |
| Paul Bakker | dcbfdcc | 2013-09-10 16:16:50 +0200 | [diff] [blame] | 17 | * The other number generator that is included is less strong and uses the HAVEGE |
| 18 | * (HArdware Volatile Entropy Gathering and Expansion) software heuristic |
| 19 | * which considered unsafe for primary usage, but provides additional random |
| 20 | * to the entropy pool if enables. |
| Paul Bakker | 37ca75d | 2011-01-06 12:28:03 +0000 | [diff] [blame] | 21 | * |
| 22 | * \* Meaning that there seems to be no practical algorithm that can guess |
| 23 | * the next bit with a probability larger than 1/2 in an output sequence. |
| 24 | * |
| 25 | * This module can be used to generate random numbers. |
| 26 | */ |