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100 lines
4.3 KiB
C
100 lines
4.3 KiB
C
/**
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* \file doc_encdec.h
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*
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* \brief Encryption/decryption module documentation file.
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*/
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/*
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*
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* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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*
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* This file is provided under the Apache License 2.0, or the
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* GNU General Public License v2.0 or later.
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*
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* **********
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* Apache License 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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*
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* **********
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* GNU General Public License v2.0 or later:
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* **********
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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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/**
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* @addtogroup encdec_module Encryption/decryption module
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*
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* The Encryption/decryption module provides encryption/decryption functions.
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* One can differentiate between symmetric and asymmetric algorithms; the
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* symmetric ones are mostly used for message confidentiality and the asymmetric
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* ones for key exchange and message integrity.
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* Some symmetric algorithms provide different block cipher modes, mainly
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* Electronic Code Book (ECB) which is used for short (64-bit) messages and
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* Cipher Block Chaining (CBC) which provides the structure needed for longer
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* messages. In addition the Cipher Feedback Mode (CFB-128) stream cipher mode,
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* Counter mode (CTR) and Galois Counter Mode (GCM) are implemented for
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* specific algorithms.
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*
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* All symmetric encryption algorithms are accessible via the generic cipher layer
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* (see \c mbedtls_cipher_setup()).
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*
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* The asymmetric encryptrion algorithms are accessible via the generic public
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* key layer (see \c mbedtls_pk_init()).
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*
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* The following algorithms are provided:
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* - Symmetric:
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* - AES (see \c mbedtls_aes_crypt_ecb(), \c mbedtls_aes_crypt_cbc(), \c mbedtls_aes_crypt_cfb128() and
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* \c mbedtls_aes_crypt_ctr()).
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* - ARCFOUR (see \c mbedtls_arc4_crypt()).
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* - Blowfish / BF (see \c mbedtls_blowfish_crypt_ecb(), \c mbedtls_blowfish_crypt_cbc(),
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* \c mbedtls_blowfish_crypt_cfb64() and \c mbedtls_blowfish_crypt_ctr())
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* - Camellia (see \c mbedtls_camellia_crypt_ecb(), \c mbedtls_camellia_crypt_cbc(),
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* \c mbedtls_camellia_crypt_cfb128() and \c mbedtls_camellia_crypt_ctr()).
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* - DES/3DES (see \c mbedtls_des_crypt_ecb(), \c mbedtls_des_crypt_cbc(), \c mbedtls_des3_crypt_ecb()
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* and \c mbedtls_des3_crypt_cbc()).
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* - GCM (AES-GCM and CAMELLIA-GCM) (see \c mbedtls_gcm_init())
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* - XTEA (see \c mbedtls_xtea_crypt_ecb()).
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* - Asymmetric:
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* - Diffie-Hellman-Merkle (see \c mbedtls_dhm_read_public(), \c mbedtls_dhm_make_public()
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* and \c mbedtls_dhm_calc_secret()).
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* - RSA (see \c mbedtls_rsa_public() and \c mbedtls_rsa_private()).
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* - Elliptic Curves over GF(p) (see \c mbedtls_ecp_point_init()).
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* - Elliptic Curve Digital Signature Algorithm (ECDSA) (see \c mbedtls_ecdsa_init()).
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* - Elliptic Curve Diffie Hellman (ECDH) (see \c mbedtls_ecdh_init()).
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*
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* This module provides encryption/decryption which can be used to provide
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* secrecy.
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*
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* It also provides asymmetric key functions which can be used for
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* confidentiality, integrity, authentication and non-repudiation.
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*/
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