include/tropicssl/padlock.h

   1 /**
   2  * \file padlock.h
   3  *
   4  *  Based on XySSL: Copyright (C) 2006-2008  Christophe Devine
   5  *
   6  *  Copyright (C) 2009  Paul Bakker <polarssl_maintainer at polarssl dot org>
   7  *
   8  *  All rights reserved.
   9  *
  10  *  Redistribution and use in source and binary forms, with or without
  11  *  modification, are permitted provided that the following conditions
  12  *  are met:
  13  *
  14  *    * Redistributions of source code must retain the above copyright
  15  *      notice, this list of conditions and the following disclaimer.
  16  *    * Redistributions in binary form must reproduce the above copyright
  17  *      notice, this list of conditions and the following disclaimer in the
  18  *      documentation and/or other materials provided with the distribution.
  19  *    * Neither the names of PolarSSL or XySSL nor the names of its contributors
  20  *      may be used to endorse or promote products derived from this software
  21  *      without specific prior written permission.
  22  *
  23  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  24  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  25  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  26  *  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  27  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  28  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
  29  *  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  30  *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  31  *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  32  *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  33  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  */
  35 #ifndef TROPICSSL_PADLOCK_H
  36 #define TROPICSSL_PADLOCK_H
  37
  38 #include "tropicssl/aes.h"
  39
  40 #if (defined(__GNUC__) && defined(__i386__))
  41
  42 #ifndef TROPICSSL_HAVE_X86
  43 #define TROPICSSL_HAVE_X86
  44 #endif
  45
  46 #define PADLOCK_RNG 0x000C
  47 #define PADLOCK_ACE 0x00C0
  48 #define PADLOCK_PHE 0x0C00
  49 #define PADLOCK_PMM 0x3000
  50
  51 #define PADLOCK_ALIGN16(x) (unsigned long *) (16 + ((long) x & ~15))
  52
  53 #ifdef __cplusplus
  54 extern "C" {
  55 #endif
  56
  57         /**
  58          * \brief          PadLock detection routine
  59          *
  60          * \return         1 if CPU has support for the feature, 0 otherwise
  61          */
  62         int padlock_supports(int feature);
  63
  64         /**
  65          * \brief          PadLock AES-ECB block en(de)cryption
  66          *
  67          * \param ctx      AES context
  68          * \param mode     AES_ENCRYPT or AES_DECRYPT
  69          * \param input    16-byte input block
  70          * \param output   16-byte output block
  71          *
  72          * \return         0 if success, 1 if operation failed
  73          */
  74         int padlock_xcryptecb(aes_context * ctx,
  75                               int mode,
  76                               const unsigned char input[16],
  77                               unsigned char output[16]);
  78
  79         /**
  80          * \brief          PadLock AES-CBC buffer en(de)cryption
  81          *
  82          * \param ctx      AES context
  83          * \param mode     AES_ENCRYPT or AES_DECRYPT
  84          * \param length   length of the input data
  85          * \param iv       initialization vector (updated after use)
  86          * \param input    buffer holding the input data
  87          * \param output   buffer holding the output data
  88          *
  89          * \return         0 if success, 1 if operation failed
  90          */
  91         int padlock_xcryptcbc(aes_context * ctx,
  92                               int mode,
  93                               int length,
  94                               unsigned char iv[16],
  95                               const unsigned char *input,
  96                               unsigned char *output);
  97
  98 #ifdef __cplusplus
  99 }
 100 #endif
 101 #endif                          /* HAVE_X86  */
 102 #endif                          /* padlock.h */