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118 lines
3.3 KiB
C
118 lines
3.3 KiB
C
/*
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* This file is adapted from PolarSSL 1.3.19 (GPL)
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*/
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/**
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* \file aesni.h
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*
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* \brief AES-NI for hardware AES acceleration on some Intel processors
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*
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* Copyright (C) 2013, ARM Limited, All Rights Reserved
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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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* 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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#ifndef UDP2RAW_AESNI_H_
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#define UDP2RAW_AESNI_H_
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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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( defined(__amd64__) || defined(__x86_64__) ) && \
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!defined(NO_AESACC)
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#define HAVE_AMD64
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#endif
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#if defined(HAVE_AMD64)
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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 AES-NI features detection routine
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*
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* \return 1 if CPU has support for AES-NI, 0 otherwise
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*/
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int aesni_supported( void );
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/**
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* \brief AES-NI 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 AES_ENCRYPT or AES_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 aesni_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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/**
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* \brief Compute decryption round keys from encryption round keys
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*
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* \param invkey Round keys for the equivalent inverse cipher
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* \param fwdkey Original round keys (for encryption)
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* \param nr Number of rounds (that is, number of round keys minus one)
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*/
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void aesni_inverse_key( unsigned char *invkey,
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const unsigned char *fwdkey, int nr );
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/**
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* \brief Perform 128-bit key expansion (for encryption)
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*
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* \param rk Destination buffer where the round keys are written
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* \param key Encryption key
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*/
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void aesni_setkey_enc_128( unsigned char *rk,
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const unsigned char *key );
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/**
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* \brief Perform 192-bit key expansion (for encryption)
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*
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* \param rk Destination buffer where the round keys are written
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* \param key Encryption key
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*/
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void aesni_setkey_enc_192( unsigned char *rk,
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const unsigned char *key );
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/**
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* \brief Perform 256-bit key expansion (for encryption)
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*
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* \param rk Destination buffer where the round keys are written
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* \param key Encryption key
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*/
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void aesni_setkey_enc_256( unsigned char *rk,
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const unsigned char *key );
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAVE_AMD64 */
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#endif /* _AESNI_H_ */
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