PolarSSL v1.1.4
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The Random number generator (RNG) module provides random number generation, see ctr_dbrg_random()
or havege_random()
.
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The Random number generator (RNG) module provides random number generation, see ctr_dbrg_random()
or havege_random()
.
The former uses 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 entropy_func()
can be used. This is an implementation based on a simple entropy accumulator design.
The latter random number generator uses the HAVEGE (HArdware Volatile Entropy Gathering and Expansion) software heuristic which is claimed to be an unpredictable or empirically strong* random number generation.
\* 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.