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			317 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			317 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /**
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|  * \file sha512.h
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|  * \brief This file contains SHA-384 and SHA-512 definitions and functions.
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|  *
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|  * The Secure Hash Algorithms 384 and 512 (SHA-384 and SHA-512) cryptographic
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|  * hash functions are defined in <em>FIPS 180-4: Secure Hash Standard (SHS)</em>.
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|  */
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| /*
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|  *  Copyright (C) 2006-2018, Arm Limited (or its affiliates), 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"); you may
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|  *  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, WITHOUT
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|  *  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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|  *  This file is part of Mbed TLS (https://tls.mbed.org)
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|  */
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| #ifndef MBEDTLS_SHA512_H
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| #define MBEDTLS_SHA512_H
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| 
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| #if !defined(MBEDTLS_CONFIG_FILE)
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| #include "mbedtls/config.h"
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| #else
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| #include MBEDTLS_CONFIG_FILE
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| #endif
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| 
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| #include <stddef.h>
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| #include <stdint.h>
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| 
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| /* MBEDTLS_ERR_SHA512_HW_ACCEL_FAILED is deprecated and should not be used. */
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| #define MBEDTLS_ERR_SHA512_HW_ACCEL_FAILED                -0x0039  /**< SHA-512 hardware accelerator failed */
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| #define MBEDTLS_ERR_SHA512_BAD_INPUT_DATA                 -0x0075  /**< SHA-512 input data was malformed. */
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| 
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| #ifdef __cplusplus
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| extern "C" {
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| #endif
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| 
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| #if !defined(MBEDTLS_SHA512_ALT)
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| // Regular implementation
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| //
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| 
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| /**
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|  * \brief          The SHA-512 context structure.
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|  *
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|  *                 The structure is used both for SHA-384 and for SHA-512
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|  *                 checksum calculations. The choice between these two is
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|  *                 made in the call to mbedtls_sha512_starts_ret().
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|  */
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| typedef struct mbedtls_sha512_context
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| {
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|     uint64_t total[2];          /*!< The number of Bytes processed. */
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|     uint64_t state[8];          /*!< The intermediate digest state. */
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|     unsigned char buffer[128];  /*!< The data block being processed. */
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| #if !defined(MBEDTLS_SHA512_NO_SHA384)
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|     int is384;                  /*!< Determines which function to use:
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|                                      0: Use SHA-512, or 1: Use SHA-384. */
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| #endif
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| }
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| mbedtls_sha512_context;
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| 
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| #else  /* MBEDTLS_SHA512_ALT */
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| #include "sha512_alt.h"
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| #endif /* MBEDTLS_SHA512_ALT */
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| 
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| /**
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|  * \brief          This function initializes a SHA-512 context.
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|  *
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|  * \param ctx      The SHA-512 context to initialize. This must
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|  *                 not be \c NULL.
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|  */
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| void mbedtls_sha512_init( mbedtls_sha512_context *ctx );
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| 
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| /**
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|  * \brief          This function clears a SHA-512 context.
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|  *
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|  * \param ctx      The SHA-512 context to clear. This may be \c NULL,
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|  *                 in which case this function does nothing. If it
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|  *                 is not \c NULL, it must point to an initialized
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|  *                 SHA-512 context.
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|  */
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| void mbedtls_sha512_free( mbedtls_sha512_context *ctx );
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| 
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| /**
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|  * \brief          This function clones the state of a SHA-512 context.
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|  *
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|  * \param dst      The destination context. This must be initialized.
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|  * \param src      The context to clone. This must be initialized.
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|  */
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| void mbedtls_sha512_clone( mbedtls_sha512_context *dst,
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|                            const mbedtls_sha512_context *src );
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| 
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| /**
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|  * \brief          This function starts a SHA-384 or SHA-512 checksum
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|  *                 calculation.
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|  *
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|  * \param ctx      The SHA-512 context to use. This must be initialized.
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|  * \param is384    Determines which function to use. This must be
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|  *                 either \c 0 for SHA-512, or \c 1 for SHA-384.
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|  *
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|  * \note           When \c MBEDTLS_SHA512_NO_SHA384 is defined, \p is384 must
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|  *                 be \c 0, or the function will return
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|  *                 #MBEDTLS_ERR_SHA512_BAD_INPUT_DATA.
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|  *
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|  * \return         \c 0 on success.
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|  * \return         A negative error code on failure.
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|  */
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| int mbedtls_sha512_starts_ret( mbedtls_sha512_context *ctx, int is384 );
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| 
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| /**
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|  * \brief          This function feeds an input buffer into an ongoing
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|  *                 SHA-512 checksum calculation.
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|  *
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|  * \param ctx      The SHA-512 context. This must be initialized
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|  *                 and have a hash operation started.
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|  * \param input    The buffer holding the input data. This must
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|  *                 be a readable buffer of length \p ilen Bytes.
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|  * \param ilen     The length of the input data in Bytes.
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|  *
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|  * \return         \c 0 on success.
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|  * \return         A negative error code on failure.
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|  */
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| int mbedtls_sha512_update_ret( mbedtls_sha512_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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| /**
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|  * \brief          This function finishes the SHA-512 operation, and writes
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|  *                 the result to the output buffer. This function is for
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|  *                 internal use only.
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|  *
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|  * \param ctx      The SHA-512 context. This must be initialized
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|  *                 and have a hash operation started.
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|  * \param output   The SHA-384 or SHA-512 checksum result.
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|  *                 This must be a writable buffer of length \c 64 Bytes.
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|  *
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|  * \return         \c 0 on success.
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|  * \return         A negative error code on failure.
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|  */
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| int mbedtls_sha512_finish_ret( mbedtls_sha512_context *ctx,
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|                                unsigned char output[64] );
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| 
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| /**
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|  * \brief          This function processes a single data block within
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|  *                 the ongoing SHA-512 computation.
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|  *
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|  * \param ctx      The SHA-512 context. This must be initialized.
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|  * \param data     The buffer holding one block of data. This
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|  *                 must be a readable buffer of length \c 128 Bytes.
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|  *
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|  * \return         \c 0 on success.
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|  * \return         A negative error code on failure.
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|  */
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| int mbedtls_internal_sha512_process( mbedtls_sha512_context *ctx,
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|                                      const unsigned char data[128] );
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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-384 or SHA-512 checksum
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|  *                 calculation.
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|  *
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|  * \deprecated     Superseded by mbedtls_sha512_starts_ret() in 2.7.0
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|  *
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|  * \param ctx      The SHA-512 context to use. This must be initialized.
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|  * \param is384    Determines which function to use. This must be either
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|  *                 \c 0 for SHA-512 or \c 1 for SHA-384.
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|  *
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|  * \note           When \c MBEDTLS_SHA512_NO_SHA384 is defined, \p is384 must
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|  *                 be \c 0, or the function will fail to work.
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|  */
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| MBEDTLS_DEPRECATED void mbedtls_sha512_starts( mbedtls_sha512_context *ctx,
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|                                                int is384 );
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| 
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| /**
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|  * \brief          This function feeds an input buffer into an ongoing
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|  *                 SHA-512 checksum calculation.
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|  *
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|  * \deprecated     Superseded by mbedtls_sha512_update_ret() in 2.7.0.
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|  *
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|  * \param ctx      The SHA-512 context. This must be initialized
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|  *                 and have a hash operation started.
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|  * \param input    The buffer holding the data. This must be a readable
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|  *                 buffer of length \p ilen Bytes.
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|  * \param ilen     The length of the input data in Bytes.
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|  */
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| MBEDTLS_DEPRECATED void mbedtls_sha512_update( mbedtls_sha512_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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| /**
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|  * \brief          This function finishes the SHA-512 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_sha512_finish_ret() in 2.7.0.
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|  *
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|  * \param ctx      The SHA-512 context. This must be initialized
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|  *                 and have a hash operation started.
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|  * \param output   The SHA-384 or SHA-512 checksum result. This must
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|  *                 be a writable buffer of size \c 64 Bytes.
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|  */
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| MBEDTLS_DEPRECATED void mbedtls_sha512_finish( mbedtls_sha512_context *ctx,
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|                                                unsigned char output[64] );
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| 
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| /**
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|  * \brief          This function processes a single data block within
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|  *                 the ongoing SHA-512 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_sha512_process() in 2.7.0.
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|  *
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|  * \param ctx      The SHA-512 context. This must be initialized.
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|  * \param data     The buffer holding one block of data. This must be
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|  *                 a readable buffer of length \c 128 Bytes.
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|  */
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| MBEDTLS_DEPRECATED void mbedtls_sha512_process(
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|                                             mbedtls_sha512_context *ctx,
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|                                             const unsigned char data[128] );
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| 
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| #undef MBEDTLS_DEPRECATED
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| #endif /* !MBEDTLS_DEPRECATED_REMOVED */
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| 
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| /**
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|  * \brief          This function calculates the SHA-512 or SHA-384
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|  *                 checksum of a buffer.
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|  *
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|  *                 The function allocates the context, performs the
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|  *                 calculation, and frees the context.
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|  *
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|  *                 The SHA-512 result is calculated as
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|  *                 output = SHA-512(input buffer).
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|  *
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|  * \param input    The buffer holding the input data. This must be
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|  *                 a readable buffer of length \p ilen Bytes.
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|  * \param ilen     The length of the input data in Bytes.
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|  * \param output   The SHA-384 or SHA-512 checksum result.
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|  *                 This must be a writable buffer of length \c 64 Bytes.
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|  * \param is384    Determines which function to use. This must be either
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|  *                 \c 0 for SHA-512, or \c 1 for SHA-384.
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|  *
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|  * \note           When \c MBEDTLS_SHA512_NO_SHA384 is defined, \p is384 must
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|  *                 be \c 0, or the function will return
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|  *                 #MBEDTLS_ERR_SHA512_BAD_INPUT_DATA.
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|  *
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|  * \return         \c 0 on success.
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|  * \return         A negative error code on failure.
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|  */
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| int mbedtls_sha512_ret( const unsigned char *input,
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|                         size_t ilen,
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|                         unsigned char output[64],
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|                         int is384 );
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| 
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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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| /**
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|  * \brief          This function calculates the SHA-512 or SHA-384
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|  *                 checksum of a buffer.
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|  *
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|  *                 The function allocates the context, performs the
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|  *                 calculation, and frees the context.
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|  *
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|  *                 The SHA-512 result is calculated as
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|  *                 output = SHA-512(input buffer).
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|  *
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|  * \deprecated     Superseded by mbedtls_sha512_ret() in 2.7.0
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|  *
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|  * \param input    The buffer holding the data. This must be a
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|  *                 readable buffer of length \p ilen Bytes.
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|  * \param ilen     The length of the input data in Bytes.
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|  * \param output   The SHA-384 or SHA-512 checksum result. This must
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|  *                 be a writable buffer of length \c 64 Bytes.
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|  * \param is384    Determines which function to use. This must be either
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|  *                 \c 0 for SHA-512, or \c 1 for SHA-384.
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|  *
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|  * \note           When \c MBEDTLS_SHA512_NO_SHA384 is defined, \p is384 must
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|  *                 be \c 0, or the function will fail to work.
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|  */
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| MBEDTLS_DEPRECATED void mbedtls_sha512( const unsigned char *input,
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|                                         size_t ilen,
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|                                         unsigned char output[64],
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|                                         int is384 );
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| 
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| #undef MBEDTLS_DEPRECATED
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| #endif /* !MBEDTLS_DEPRECATED_REMOVED */
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| 
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| #if defined(MBEDTLS_SELF_TEST)
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| 
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|  /**
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|  * \brief          The SHA-384 or SHA-512 checkup routine.
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|  *
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|  * \return         \c 0 on success.
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|  * \return         \c 1 on failure.
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|  */
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| int mbedtls_sha512_self_test( int verbose );
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| #endif /* MBEDTLS_SELF_TEST */
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| 
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| #ifdef __cplusplus
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| }
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| #endif
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| 
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| #endif /* mbedtls_sha512.h */
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