7d0e1d9218
Change-Id: I89b8db6925385dd02e95e0401bc42f32543e0daf Signed-off-by: Constanza Heath <constanza.m.heath@intel.com> Signed-off-by: Anas Nashif <anas.nashif@intel.com>
67 lines
2.3 KiB
C
67 lines
2.3 KiB
C
/* utils.h - TinyCrypt interface to platform-dependent run-time operations */
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/*
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* Copyright (C) 2015 by Intel Corporation, All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @file
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* @brief Interface to platform-dependent run-time operations.
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*
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*/
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#ifndef __TC_UTILS_H__
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#define __TC_UTILS_H__
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#include <stdint.h>
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#define TC_SUCCESS 1
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#define TC_FAIL 0
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#define TC_RESEED_REQ -1
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/**
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* @brief Copy the the buffer 'from' to the buffer 'to'.
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*
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* @return returns TC_FAIL (0) if:
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* from_len > to_len.
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*/
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uint32_t _copy(uint8_t *to, uint32_t to_len, const uint8_t *from, uint32_t from_len);
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/**
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* @brief Set the value 'val' into the buffer 'to', 'len' times.
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*/
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void _set(uint8_t *to, uint8_t val, uint32_t len);
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/**
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* @brief This is an AES specific doubling function, which utilizes the
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* finite field used by AES.
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*/
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uint8_t _double_byte(uint8_t a);
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#endif
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