Import Mbed OS hard-float snapshot
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Beslan
197
connectivity/drivers/mbedtls/TARGET_Samsung/sha/sha256_alt.h
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197
connectivity/drivers/mbedtls/TARGET_Samsung/sha/sha256_alt.h
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/* mbed Microcontroller Library
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* Copyright (c) 2006-2020 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/****************************************************************************
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*
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* Copyright 2020 Samsung Electronics All Rights Reserved.
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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* language governing permissions and limitations under the License.
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*
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****************************************************************************/
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#ifndef MBEDTLS_SHA256_ALT_H
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#define MBEDTLS_SHA256_ALT_H
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#include "mbedtls/sha256.h"
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#if defined(MBEDTLS_SHA256_ALT)
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#include "sss_common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define ST_SHA256_BUF_SIZE ((size_t) 256)
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struct mbedtls_sha256_context_s;
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/**
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* \brief SHA-256 context structure
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*/
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typedef struct mbedtls_sha256_context_s {
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/* for S/W SHA-224 */
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uint32_t total[2]; /*!< The number of Bytes processed. */
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uint32_t state[8]; /*!< The intermediate digest state. */
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unsigned char buffer[64]; /*!< The data block being processed. */
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int is224; /*!< Determines which function to use:
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0: Use SHA-256, or 1: Use SHA-224. */
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/* for H/W SHA-256 */
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uint32_t totals;
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uint32_t hw;
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unsigned char sbuf[ST_SHA256_BUF_SIZE]; /*!< ST_SHA256_BLOCK_SIZE buffer to store values so that algorithm is called once the buffer is filled */
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stOCTET_STRING pstMessage;
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stOCTET_STRING pstDigest;
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}
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mbedtls_sha256_context;
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/**
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* \brief Initialize SHA-256 context
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*
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* \param ctx SHA-256 context to be initialized
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*/
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void mbedtls_sha256_init(mbedtls_sha256_context *ctx);
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/**
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* \brief Clear SHA-256 context
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*
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* \param ctx SHA-256 context to be cleared
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*/
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void mbedtls_sha256_free(mbedtls_sha256_context *ctx);
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/**
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* \brief Clone (the state of) a SHA-256 context
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*
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* \param dst The destination context
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* \param src The context to be cloned
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*/
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void mbedtls_sha256_clone(mbedtls_sha256_context *dst,
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const mbedtls_sha256_context *src);
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/**
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* \brief SHA-256 context setup
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*
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* \param ctx context to be initialized
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* \param is224 0 = use SHA256, 1 = use SHA224
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*
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* \returns error code
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*/
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int mbedtls_sha256_starts_ret(mbedtls_sha256_context *ctx, int is224);
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/**
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* \brief SHA-256 process buffer
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*
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* \param ctx SHA-256 context
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* \param input buffer holding the data
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* \param ilen length of the input data
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*
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* \returns error code
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*/
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int mbedtls_sha256_update_ret(mbedtls_sha256_context *ctx, const unsigned char *input,
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size_t ilen);
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/**
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* \brief SHA-256 final digest
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*
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* \param ctx SHA-256 context
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* \param output SHA-224/256 checksum result
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*
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* \returns error code
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*/
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int mbedtls_sha256_finish_ret(mbedtls_sha256_context *ctx, unsigned char output[32]);
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/* Internal use */
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int mbedtls_internal_sha256_process(mbedtls_sha256_context *ctx, const unsigned char data[64]);
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#if !defined(MBEDTLS_DEPRECATED_REMOVED)
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#if defined(MBEDTLS_DEPRECATED_WARNING)
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#define MBEDTLS_DEPRECATED __attribute__((deprecated))
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#else
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#define MBEDTLS_DEPRECATED
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#endif
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/**
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* \brief This function starts a SHA-256 checksum calculation.
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*
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* \deprecated Superseded by mbedtls_sha256_starts_ret() in 2.7.0.
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*
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* \param ctx The SHA-256 context to initialize.
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* \param is224 Determines which function to use.
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* <ul><li>0: Use SHA-256.</li>
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* <li>1: Use SHA-224.</li></ul>
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*/
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MBEDTLS_DEPRECATED void mbedtls_sha256_starts(mbedtls_sha256_context *ctx,
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int is224);
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/**
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* \brief This function feeds an input buffer into an ongoing
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* SHA-256 checksum calculation.
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*
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* \deprecated Superseded by mbedtls_sha256_update_ret() in 2.7.0.
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*
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* \param ctx The SHA-256 context to initialize.
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* \param input The buffer holding the data.
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* \param ilen The length of the input data.
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*/
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MBEDTLS_DEPRECATED void mbedtls_sha256_update(mbedtls_sha256_context *ctx,
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const unsigned char *input,
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size_t ilen);
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/**
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* \brief This function finishes the SHA-256 operation, and writes
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* the result to the output buffer.
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*
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* \deprecated Superseded by mbedtls_sha256_finish_ret() in 2.7.0.
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*
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* \param ctx The SHA-256 context.
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* \param output The SHA-224or SHA-256 checksum result.
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*/
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MBEDTLS_DEPRECATED void mbedtls_sha256_finish(mbedtls_sha256_context *ctx,
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unsigned char output[32]);
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/**
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* \brief This function processes a single data block within
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* the ongoing SHA-256 computation. This function is for
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* internal use only.
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*
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* \deprecated Superseded by mbedtls_internal_sha256_process() in 2.7.0.
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*
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* \param ctx The SHA-256 context.
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* \param data The buffer holding one block of data.
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*/
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MBEDTLS_DEPRECATED void mbedtls_sha256_process(mbedtls_sha256_context *ctx,
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const unsigned char data[64]);
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#undef MBEDTLS_DEPRECATED
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#endif /* !MBEDTLS_DEPRECATED_REMOVED */
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#ifdef __cplusplus
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}
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#endif
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#endif /* MBEDTLS_SHA256_ALT */
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#endif /* sha256_alt.h */
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