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95fdecb7b4
When supported, the true random number generator provide to API calls,
to initialize it and to retrieve a random number.
BRANCH=none
BUG=chrome-os-partner:43025
TEST=with other patches in place TPM2 gets proper random numbers
stream.
Change-Id: I11effdf6f81ca76581a354218203620708195b2b
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/306688
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
23 lines
484 B
C
23 lines
484 B
C
/* Copyright 2015 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef __EC_INCLUDE_TRNG_H
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#define __EC_INCLUDE_TRNG_H
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/**
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* Initialize the true random number generator.
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*
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* Not supported by all platforms.
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**/
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void init_trng(void);
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/**
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* Retrieve a 32 bit random value.
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*
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* Not supported on all platforms.
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**/
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uint32_t rand(void);
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#endif /* __EC_INCLUDE_TRNG_H */
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