180 lines
5.5 KiB
C
180 lines
5.5 KiB
C
/**
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* Copyright (C) 2015-2016 Virgil Security Inc.
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*
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* Lead Maintainer: Virgil Security Inc. <support@virgilsecurity.com>
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*
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* 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
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* met:
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*
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* (1) Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* (2) Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* (3) Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of extension to mbed TLS (https://tls.mbed.org)
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*/
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#ifndef MBEDTLS_ECIES_H
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#define MBEDTLS_ECIES_H
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#if defined (MBEDTLS_CIPHER_C)
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#include "mbedtls/cipher.h"
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#endif
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#if defined(MBEDTLS_ECP_C)
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#include "mbedtls/ecp.h"
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#endif
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#if defined(MBEDTLS_ECDH_C)
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#include "mbedtls/ecdh.h"
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#endif
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#if defined(MBEDTLS_MD_C)
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#include "mbedtls/md.h"
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#endif
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#if defined(MBEDTLS_KDF_C)
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#include "mbedtls/kdf.h"
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#endif
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#define MBEDTLS_ERR_ECIES_BAD_INPUT_DATA -0x4B80 /**< Bad input parameters to function. */
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#define MBEDTLS_ERR_ECIES_OUTPUT_TOO_SMALL -0x4B00 /**< Output buffer too small. */
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#define MBEDTLS_ERR_ECIES_MALFORMED_DATA -0x4A80 /**< Encrypted data is malformed. */
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#define MBEDTLS_ERR_ECIES_ALLOC_FAILED -0x4A00 /**< Memory allocation failed */
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#if defined(MBEDTLS_ECIES_C)
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#if !defined(MBEDTLS_ECIES_CIPHER_TYPE)
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/*
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* Symmetric cipher that is used for internal data encryption
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*
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* Default value: MBEDTLS_CIPHER_AES_256_CBC
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*/
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#define MBEDTLS_ECIES_CIPHER_TYPE MBEDTLS_CIPHER_AES_256_CBC
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#endif /* !MBEDTLS_ECIES_CIPHER_TYPE */
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#if !defined(MBEDTLS_ECIES_CIPHER_PADDING)
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/*
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* Padding for symmetric cipher that is used for padding data before encryption
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*
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* Default value: MBEDTLS_PADDING_PKCS7
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*/
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#define MBEDTLS_ECIES_CIPHER_PADDING MBEDTLS_PADDING_PKCS7
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#endif /* !MBEDTLS_ECIES_CIPHER_PADDING */
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#if !defined(MBEDTLS_ECIES_MD_TYPE)
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/*
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* Digest algorithm that is used for the key derivation
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*
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* Default value: MBEDTLS_MD_SHA384
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*/
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#if defined(MBEDTLS_SHA512_C)
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#define MBEDTLS_ECIES_MD_TYPE MBEDTLS_MD_SHA384
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#elif defined(MBEDTLS_SHA256_C)
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#define MBEDTLS_ECIES_MD_TYPE MBEDTLS_MD_SHA256
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#elif defined(MBEDTLS_SHA1_C)
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#define MBEDTLS_ECIES_MD_TYPE MBEDTLS_MD_SHA1
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#else
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#error "Can not define appropriate value for MBEDTLS_ECIES_MD_TYPE contant"
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#endif
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#endif /* !MBEDTLS_ECIES_MD_TYPE */
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#if !defined(MBEDTLS_ECIES_HMAC_TYPE)
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/*
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* Digest algorithm that is used to get verification tag
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*
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* Default value: MBEDTLS_MD_SHA384
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*/
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#if defined(MBEDTLS_SHA512_C)
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#define MBEDTLS_ECIES_HMAC_TYPE MBEDTLS_MD_SHA384
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#elif defined(MBEDTLS_SHA256_C)
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#define MBEDTLS_ECIES_HMAC_TYPE MBEDTLS_MD_SHA256
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#elif defined(MBEDTLS_SHA1_C)
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#define MBEDTLS_ECIES_HMAC_TYPE MBEDTLS_MD_SHA1
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#else
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#error "Can not define appropriate value for MBEDTLS_ECIES_HMAC_TYPE contant"
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#endif
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#endif /* !MBEDTLS_ECIES_HMAC_TYPE */
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#if !defined(MBEDTLS_ECIES_KDF_TYPE)
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/*
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* Key derivation algorithm that is used to derive key for the symmetric cipher
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*
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* Default value: MBEDTLS_KDF_KDF2
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*/
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#if defined(MBEDTLS_KDF2_C)
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#define MBEDTLS_ECIES_KDF_TYPE MBEDTLS_KDF_KDF2
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#elif defined(MBEDTLS_KDF1_C)
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#define MBEDTLS_ECIES_KDF_TYPE MBEDTLS_KDF_KDF1
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#else
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#error "Can not define appropriate value for MBEDTLS_ECIES_KDF_TYPE contant"
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#endif
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#endif /* !MBEDTLS_ECIES_KDF_TYPE */
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum {
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MBEDTLS_ECIES_NONE=0,
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MBEDTLS_ECIES_ECP,
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MBEDTLS_ECIES_FAST_EC,
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} mbedtls_ecies_type_t;
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typedef struct mbedtls_ecies_info_t mbedtls_ecies_info_t;
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const mbedtls_ecies_info_t* mbedtls_ecies_info_from_type(mbedtls_ecies_type_t type);
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/**
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* \brief Perform ECIES encryption.
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* \return 0 if successful
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*/
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int mbedtls_ecies_encrypt(void *key, const mbedtls_ecies_info_t* info,
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const unsigned char *input, size_t ilen,
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unsigned char *output, size_t *olen, size_t osize,
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int (*f_rng)(void *, unsigned char *, size_t), void *p_rng);
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/**
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* \brief Perform ECIES decryption.
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* \return 0 if successful
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*/
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int mbedtls_ecies_decrypt(void *key, const mbedtls_ecies_info_t* info,
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const unsigned char *input, size_t ilen,
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unsigned char *output, size_t *olen, size_t osize,
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int (*f_rng)(void *, unsigned char *, size_t), void *p_rng);
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#ifdef __cplusplus
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}
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#endif
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#endif /* MBEDTLS_ECIES_C */
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#endif /* MBEDTLS_ECIES_H */
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