mirror of
https://github.com/yuzu-emu/mbedtls.git
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afdc1b5cbd
We called in tinycrypt in the file names, but uecc in config.h, all.sh and other places, which could be confusing. Just use tinycrypt everywhere because that's the name of the project and repo where we took the files. The changes were made using the following commands (with GNU sed and zsh): sed -i 's/uecc/tinycrypt/g' **/*.[ch] tests/scripts/all.sh sed -i 's/MBEDTLS_USE_UECC/MBEDTLS_USE_TINYCRYPT/g' **/*.[ch] tests/scripts/all.sh scripts/config.pl
134 lines
5.5 KiB
C
134 lines
5.5 KiB
C
/* ecc_dh.h - TinyCrypt interface to EC-DH implementation */
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/*
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* Copyright (c) 2014, Kenneth MacKay
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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 met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING 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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/* Copyright (C) 2017 by Intel Corporation, 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 met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING 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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/**
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* @file
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* @brief -- Interface to EC-DH implementation.
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*
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* Overview: This software is an implementation of EC-DH. This implementation
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* uses curve NIST p-256.
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*
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* Security: The curve NIST p-256 provides approximately 128 bits of security.
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*/
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#if defined(MBEDTLS_USE_TINYCRYPT)
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#ifndef __TC_ECC_DH_H__
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#define __TC_ECC_DH_H__
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#include <tinycrypt/ecc.h>
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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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* @brief Create a public/private key pair.
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* @return returns TC_CRYPTO_SUCCESS (1) if the key pair was generated successfully
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* returns TC_CRYPTO_FAIL (0) if error while generating key pair
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*
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* @param p_public_key OUT -- Will be filled in with the public key. Must be at
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* least 2 * the curve size (in bytes) long. For curve secp256r1, p_public_key
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* must be 64 bytes long.
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* @param p_private_key OUT -- Will be filled in with the private key. Must be as
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* long as the curve order (for secp256r1, p_private_key must be 32 bytes long).
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*
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* @note side-channel countermeasure: algorithm strengthened against timing
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* attack.
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* @warning A cryptographically-secure PRNG function must be set (using
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* uECC_set_rng()) before calling uECC_make_key().
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*/
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int uECC_make_key(uint8_t *p_public_key, uint8_t *p_private_key, uECC_Curve curve);
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#ifdef ENABLE_TESTS
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/**
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* @brief Create a public/private key pair given a specific d.
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*
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* @note THIS FUNCTION SHOULD BE CALLED ONLY FOR TEST PURPOSES. Refer to
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* uECC_make_key() function for real applications.
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*/
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int uECC_make_key_with_d(uint8_t *p_public_key, uint8_t *p_private_key,
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unsigned int *d, uECC_Curve curve);
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#endif
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/**
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* @brief Compute a shared secret given your secret key and someone else's
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* public key.
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* @return returns TC_CRYPTO_SUCCESS (1) if the shared secret was computed successfully
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* returns TC_CRYPTO_FAIL (0) otherwise
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*
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* @param p_secret OUT -- Will be filled in with the shared secret value. Must be
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* the same size as the curve size (for curve secp256r1, secret must be 32 bytes
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* long.
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* @param p_public_key IN -- The public key of the remote party.
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* @param p_private_key IN -- Your private key.
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*
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* @warning It is recommended to use the output of uECC_shared_secret() as the
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* input of a recommended Key Derivation Function (see NIST SP 800-108) in
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* order to produce a cryptographically secure symmetric key.
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*/
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int uECC_shared_secret(const uint8_t *p_public_key, const uint8_t *p_private_key,
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uint8_t *p_secret, uECC_Curve curve);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __TC_ECC_DH_H__ */
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#endif /* MBEDTLS_USE_TINYCRYPT */
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