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Flatten Mbed TLS directory structure
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Justine Tunney
parent
d0ac995dc0
commit
1beeb7a829
199 changed files with 1184 additions and 944 deletions
354
third_party/mbedtls/des.h
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354
third_party/mbedtls/des.h
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/* clang-format off */
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/**
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* \file des.h
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*
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* \brief DES block cipher
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*
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* \warning DES is considered a weak cipher and its use constitutes a
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* security risk. We recommend considering stronger ciphers
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* instead.
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*/
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/*
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* Copyright The Mbed TLS Contributors
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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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*/
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#ifndef MBEDTLS_DES_H
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#define MBEDTLS_DES_H
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "third_party/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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#define MBEDTLS_DES_ENCRYPT 1
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#define MBEDTLS_DES_DECRYPT 0
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#define MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH -0x0032 /**< The data input has an invalid length. */
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/* MBEDTLS_ERR_DES_HW_ACCEL_FAILED is deprecated and should not be used. */
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#define MBEDTLS_ERR_DES_HW_ACCEL_FAILED -0x0033 /**< DES hardware accelerator failed. */
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#define MBEDTLS_DES_KEY_SIZE 8
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if !defined(MBEDTLS_DES_ALT)
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// Regular implementation
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//
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/**
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* \brief DES context structure
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*
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* \warning DES is considered a weak cipher and its use constitutes a
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* security risk. We recommend considering stronger ciphers
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* instead.
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*/
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typedef struct mbedtls_des_context
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{
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uint32_t sk[32]; /*!< DES subkeys */
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}
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mbedtls_des_context;
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/**
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* \brief Triple-DES context structure
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*/
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typedef struct mbedtls_des3_context
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{
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uint32_t sk[96]; /*!< 3DES subkeys */
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}
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mbedtls_des3_context;
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#else /* MBEDTLS_DES_ALT */
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/* #include "third_party/mbedtls/des_alt.h" */
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#endif /* MBEDTLS_DES_ALT */
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/**
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* \brief Initialize DES context
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*
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* \param ctx DES context to be initialized
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*
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* \warning DES is considered a weak cipher and its use constitutes a
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* security risk. We recommend considering stronger ciphers
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* instead.
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*/
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void mbedtls_des_init( mbedtls_des_context *ctx );
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/**
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* \brief Clear DES context
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*
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* \param ctx DES context to be cleared
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*
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* \warning DES is considered a weak cipher and its use constitutes a
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* security risk. We recommend considering stronger ciphers
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* instead.
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*/
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void mbedtls_des_free( mbedtls_des_context *ctx );
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/**
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* \brief Initialize Triple-DES context
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*
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* \param ctx DES3 context to be initialized
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*/
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void mbedtls_des3_init( mbedtls_des3_context *ctx );
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/**
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* \brief Clear Triple-DES context
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*
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* \param ctx DES3 context to be cleared
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*/
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void mbedtls_des3_free( mbedtls_des3_context *ctx );
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/**
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* \brief Set key parity on the given key to odd.
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*
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* DES keys are 56 bits long, but each byte is padded with
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* a parity bit to allow verification.
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*
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* \param key 8-byte secret key
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*
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* \warning DES is considered a weak cipher and its use constitutes a
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* security risk. We recommend considering stronger ciphers
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* instead.
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*/
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void mbedtls_des_key_set_parity( unsigned char key[MBEDTLS_DES_KEY_SIZE] );
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/**
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* \brief Check that key parity on the given key is odd.
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*
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* DES keys are 56 bits long, but each byte is padded with
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* a parity bit to allow verification.
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*
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* \param key 8-byte secret key
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*
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* \return 0 is parity was ok, 1 if parity was not correct.
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*
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* \warning DES is considered a weak cipher and its use constitutes a
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* security risk. We recommend considering stronger ciphers
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* instead.
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*/
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int mbedtls_des_key_check_key_parity( const unsigned char key[MBEDTLS_DES_KEY_SIZE] );
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/**
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* \brief Check that key is not a weak or semi-weak DES key
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*
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* \param key 8-byte secret key
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*
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* \return 0 if no weak key was found, 1 if a weak key was identified.
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*
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* \warning DES is considered a weak cipher and its use constitutes a
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* security risk. We recommend considering stronger ciphers
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* instead.
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*/
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int mbedtls_des_key_check_weak( const unsigned char key[MBEDTLS_DES_KEY_SIZE] );
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/**
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* \brief DES key schedule (56-bit, encryption)
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*
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* \param ctx DES context to be initialized
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* \param key 8-byte secret key
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*
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* \return 0
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*
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* \warning DES is considered a weak cipher and its use constitutes a
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* security risk. We recommend considering stronger ciphers
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* instead.
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*/
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int mbedtls_des_setkey_enc( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] );
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/**
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* \brief DES key schedule (56-bit, decryption)
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*
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* \param ctx DES context to be initialized
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* \param key 8-byte secret key
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*
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* \return 0
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*
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* \warning DES is considered a weak cipher and its use constitutes a
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* security risk. We recommend considering stronger ciphers
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* instead.
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*/
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int mbedtls_des_setkey_dec( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] );
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/**
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* \brief Triple-DES key schedule (112-bit, encryption)
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*
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* \param ctx 3DES context to be initialized
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* \param key 16-byte secret key
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*
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* \return 0
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*/
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int mbedtls_des3_set2key_enc( mbedtls_des3_context *ctx,
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const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] );
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/**
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* \brief Triple-DES key schedule (112-bit, decryption)
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*
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* \param ctx 3DES context to be initialized
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* \param key 16-byte secret key
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*
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* \return 0
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*/
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int mbedtls_des3_set2key_dec( mbedtls_des3_context *ctx,
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const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] );
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/**
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* \brief Triple-DES key schedule (168-bit, encryption)
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*
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* \param ctx 3DES context to be initialized
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* \param key 24-byte secret key
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*
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* \return 0
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*/
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int mbedtls_des3_set3key_enc( mbedtls_des3_context *ctx,
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const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] );
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/**
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* \brief Triple-DES key schedule (168-bit, decryption)
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*
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* \param ctx 3DES context to be initialized
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* \param key 24-byte secret key
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*
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* \return 0
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*/
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int mbedtls_des3_set3key_dec( mbedtls_des3_context *ctx,
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const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] );
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/**
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* \brief DES-ECB block encryption/decryption
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*
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* \param ctx DES context
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* \param input 64-bit input block
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* \param output 64-bit output block
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*
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* \return 0 if successful
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*
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* \warning DES is considered a weak cipher and its use constitutes a
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* security risk. We recommend considering stronger ciphers
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* instead.
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*/
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int mbedtls_des_crypt_ecb( mbedtls_des_context *ctx,
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const unsigned char input[8],
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unsigned char output[8] );
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#if defined(MBEDTLS_CIPHER_MODE_CBC)
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/**
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* \brief DES-CBC buffer encryption/decryption
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*
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* \note Upon exit, the content of the IV is updated so that you can
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* call the function same function again on the following
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* block(s) of data and get the same result as if it was
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* encrypted in one call. This allows a "streaming" usage.
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* If on the other hand you need to retain the contents of the
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* IV, you should either save it manually or use the cipher
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* module instead.
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*
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* \param ctx DES context
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* \param mode MBEDTLS_DES_ENCRYPT or MBEDTLS_DES_DECRYPT
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* \param length length of the input data
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* \param iv initialization vector (updated after use)
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* \param input buffer holding the input data
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* \param output buffer holding the output data
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*
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* \warning DES is considered a weak cipher and its use constitutes a
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* security risk. We recommend considering stronger ciphers
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* instead.
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*/
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int mbedtls_des_crypt_cbc( mbedtls_des_context *ctx,
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int mode,
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size_t length,
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unsigned char iv[8],
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const unsigned char *input,
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unsigned char *output );
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#endif /* MBEDTLS_CIPHER_MODE_CBC */
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/**
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* \brief 3DES-ECB block encryption/decryption
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*
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* \param ctx 3DES context
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* \param input 64-bit input block
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* \param output 64-bit output block
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*
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* \return 0 if successful
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*/
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int mbedtls_des3_crypt_ecb( mbedtls_des3_context *ctx,
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const unsigned char input[8],
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unsigned char output[8] );
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#if defined(MBEDTLS_CIPHER_MODE_CBC)
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/**
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* \brief 3DES-CBC buffer encryption/decryption
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*
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* \note Upon exit, the content of the IV is updated so that you can
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* call the function same function again on the following
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* block(s) of data and get the same result as if it was
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* encrypted in one call. This allows a "streaming" usage.
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* If on the other hand you need to retain the contents of the
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* IV, you should either save it manually or use the cipher
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* module instead.
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*
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* \param ctx 3DES context
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* \param mode MBEDTLS_DES_ENCRYPT or MBEDTLS_DES_DECRYPT
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* \param length length of the input data
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* \param iv initialization vector (updated after use)
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* \param input buffer holding the input data
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* \param output buffer holding the output data
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*
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* \return 0 if successful, or MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH
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*/
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int mbedtls_des3_crypt_cbc( mbedtls_des3_context *ctx,
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int mode,
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size_t length,
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unsigned char iv[8],
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const unsigned char *input,
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unsigned char *output );
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#endif /* MBEDTLS_CIPHER_MODE_CBC */
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/**
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* \brief Internal function for key expansion.
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* (Only exposed to allow overriding it,
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* see MBEDTLS_DES_SETKEY_ALT)
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*
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* \param SK Round keys
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* \param key Base key
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*
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* \warning DES is considered a weak cipher and its use constitutes a
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* security risk. We recommend considering stronger ciphers
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* instead.
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*/
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void mbedtls_des_setkey( uint32_t SK[32],
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const unsigned char key[MBEDTLS_DES_KEY_SIZE] );
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#if defined(MBEDTLS_SELF_TEST)
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/**
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* \brief Checkup routine
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*
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* \return 0 if successful, or 1 if the test failed
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*/
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int mbedtls_des_self_test( int verbose );
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#endif /* MBEDTLS_SELF_TEST */
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#ifdef __cplusplus
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}
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#endif
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#endif /* des.h */
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