/usr/include/polarssl/aesni.h is in libpolarssl-dev 1.3.4-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 | /**
* \file aesni.h
*
* \brief AES-NI for hardware AES acceleration on some Intel processors
*
* Copyright (C) 2013, Brainspark B.V.
*
* This file is part of PolarSSL (http://www.polarssl.org)
* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef POLARSSL_AESNI_H
#define POLARSSL_AESNI_H
#include "aes.h"
#define POLARSSL_AESNI_AES 0x02000000u
#define POLARSSL_AESNI_CLMUL 0x00000002u
#if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) && \
( defined(__amd64__) || defined(__x86_64__) ) && \
! defined(POLARSSL_HAVE_X86_64)
#define POLARSSL_HAVE_X86_64
#endif
#if defined(POLARSSL_HAVE_X86_64)
/**
* \brief AES-NI features detection routine
*
* \param what The feature to detect
* (POLARSSL_AESNI_AES or POLARSSL_AESNI_CLMUL)
*
* \return 1 if CPU has support for the feature, 0 otherwise
*/
int aesni_supports( unsigned int what );
/**
* \brief AES-NI AES-ECB block en(de)cryption
*
* \param ctx AES context
* \param mode AES_ENCRYPT or AES_DECRYPT
* \param input 16-byte input block
* \param output 16-byte output block
*
* \return 0 on success (cannot fail)
*/
int aesni_crypt_ecb( aes_context *ctx,
int mode,
const unsigned char input[16],
unsigned char output[16] );
/**
* \brief GCM multiplication: c = a * b in GF(2^128)
*
* \param c Result
* \param a First operand
* \param b Second operand
*
* \note Both operands and result are bit strings interpreted as
* elements of GF(2^128) as per the GCM spec.
*/
void aesni_gcm_mult( unsigned char c[16],
const unsigned char a[16],
const unsigned char b[16] );
/**
* \brief Compute decryption round keys from encryption round keys
*
* \param invkey Round keys for the equivalent inverse cipher
* \param fwdkey Original round keys (for encryption)
* \param nr Number of rounds (that is, number of round keys minus one)
*/
void aesni_inverse_key( unsigned char *invkey,
const unsigned char *fwdkey, int nr );
/**
* \brief Perform key expansion (for encryption)
*
* \param rk Destination buffer where the round keys are written
* \param key Encryption key
* \param bits Key size in bits (must be 128, 192 or 256)
*
* \return 0 if successful, or POLARSSL_ERR_AES_INVALID_KEY_LENGTH
*/
int aesni_setkey_enc( unsigned char *rk,
const unsigned char *key,
size_t bits );
#endif /* POLARSSL_HAVE_X86_64 */
#endif /* POLARSSL_AESNI_H */
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