Revision 1539fc67ec7cd1f092967452d8ae47d170ca149b authored by Jonathan Protzenko on 24 April 2020, 23:18:32 UTC, committed by Jonathan Protzenko on 24 April 2020, 23:18:32 UTC
1 parent 56130dc
Randomness.rst
Randomness
-----------------
HACL* is equipped with a randomness function implemented with
platform dependant code for Unix and Windows.
.. literalinclude:: ../dist/portable-gcc-compatible/Lib_RandomBuffer_System.h
:language: c
:start-after: SNIPPET_START: Lib_RandomBuffer_System_randombytes
:end-before: SNIPPET_END: Lib_RandomBuffer_System_randombytes
It takes a pointer to a memory location and a number of random bytes
to be written from that location. Beware of not asking for more bytes
than owned.
Internally, ``read_random_bytes`` is implemented using
``CryptGenRandom`` for Microsoft Windows and using ``/dev/urandom``
for Unix platforms.
.. warning:: This file is handwritten and is part of the TCB, hence it
should be minimally reviewed before being used.
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