2017-08-18 14:25:14 +08:00
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/*
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* This file is adapted from https://github.com/CriticalBlue/mbedtls
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*/
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/**
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* \file aes_armv8a_ce.h
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*
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* \brief AES support functions using the ARMv8-A Cryptography Extension for
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* hardware acceleration on some ARM processors.
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*
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* Copyright (C) 2016, CriticalBlue Limited, 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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2017-09-01 17:40:55 -05:00
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#ifndef UDP2RAW_AESARM_H_
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#define UDP2RAW_AESARM_H_
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2017-08-18 14:25:14 +08:00
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#ifndef AES_ENCRYPT
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#define AES_ENCRYPT 1
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#endif
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#ifndef AES_DECRYPT
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#define AES_DECRYPT 0
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#endif
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#if defined(__GNUC__) && \
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__ARM_ARCH >= 8 && \
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__ARM_ARCH_PROFILE == 'A' && \
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defined(__aarch64__) && \
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defined(__ARM_FEATURE_CRYPTO) && \
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defined(__linux__) && \
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!defined(NO_AESACC)
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#define HAVE_ARM64
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#endif
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#if defined(HAVE_ARM64)
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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 ARMv8-A features detection routine
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*
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* \return 1 if the CPU has support for the feature, 0 otherwise
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*/
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int aesarm_supported( void );
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/**
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* \brief AES ARMv8-A Cryptography Extension AES-ECB block en(de)cryption
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*
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* \param nr number of rounds
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* \param rk AES round keys
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* \param mode AESARM_ENCRYPT or AESARM_DECRYPT
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* \param input 16-byte input block
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* \param output 16-byte output block
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*/
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void aesarm_crypt_ecb( int nr,
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unsigned char *rk,
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int mode,
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const unsigned char input[16],
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unsigned char output[16] );
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAVE_ARM64 */
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#endif /* _AESARM_H_ */
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