openssl.h

00001 /**
00002  * \file openssl.h
00003  *
00004  * \brief OpenSSL wrapper (definitions, inline functions).
00005  *
00006  * \deprecated Use native mbed TLS functions instead
00007  *
00008  *  Copyright (C) 2006-2010, ARM Limited, All Rights Reserved
00009  *
00010  *  This file is part of mbed TLS (https://tls.mbed.org)
00011  *
00012  *  This program is free software; you can redistribute it and/or modify
00013  *  it under the terms of the GNU General Public License as published by
00014  *  the Free Software Foundation; either version 2 of the License, or
00015  *  (at your option) any later version.
00016  *
00017  *  This program is distributed in the hope that it will be useful,
00018  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00019  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00020  *  GNU General Public License for more details.
00021  *
00022  *  You should have received a copy of the GNU General Public License along
00023  *  with this program; if not, write to the Free Software Foundation, Inc.,
00024  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
00025  */
00026 
00027 /*
00028  * OpenSSL wrapper contributed by David Barett
00029  */
00030 
00031 #if ! defined(POLARSSL_DEPRECATED_REMOVED)
00032 
00033 #if defined(POLARSSL_DEPRECATED_WARNING)
00034 #warning "Including openssl.h is deprecated"
00035 #endif
00036 
00037 #ifndef POLARSSL_OPENSSL_H
00038 #define POLARSSL_OPENSSL_H
00039 
00040 #include "aes.h"
00041 #include "md5.h"
00042 #include "rsa.h"
00043 #include "sha1.h"
00044 
00045 #define AES_SIZE                16
00046 #define AES_BLOCK_SIZE          16
00047 #define AES_KEY                 aes_context
00048 #define MD5_CTX                 md5_context
00049 #define SHA_CTX                 sha1_context
00050 
00051 #define SHA1_Init( CTX ) \
00052         sha1_starts( (CTX) )
00053 #define SHA1_Update(  CTX, BUF, LEN ) \
00054         sha1_update( (CTX), (unsigned char *)(BUF), (LEN) )
00055 #define SHA1_Final( OUT, CTX ) \
00056         sha1_finish( (CTX), (OUT) )
00057 
00058 #define MD5_Init( CTX ) \
00059         md5_starts( (CTX) )
00060 #define MD5_Update( CTX, BUF, LEN ) \
00061         md5_update( (CTX), (unsigned char *)(BUF), (LEN) )
00062 #define MD5_Final( OUT, CTX ) \
00063         md5_finish( (CTX), (OUT) )
00064 
00065 #define AES_set_encrypt_key( KEY, KEYSIZE, CTX ) \
00066         aes_setkey_enc( (CTX), (KEY), (KEYSIZE) )
00067 #define AES_set_decrypt_key( KEY, KEYSIZE, CTX ) \
00068         aes_setkey_dec( (CTX), (KEY), (KEYSIZE) )
00069 #define AES_cbc_encrypt( INPUT, OUTPUT, LEN, CTX, IV, MODE ) \
00070         aes_crypt_cbc( (CTX), (MODE), (LEN), (IV), (INPUT), (OUTPUT) )
00071 
00072 #ifdef __cplusplus
00073 extern "C" {
00074 #endif
00075 
00076 /*
00077  * RSA stuff follows. TODO: needs cleanup
00078  */
00079 inline int __RSA_Passthrough( void *output, void *input, int size )
00080 {
00081     memcpy( output, input, size );
00082     return size;
00083 }
00084 
00085 inline rsa_context* d2i_RSA_PUBKEY( void *ignore, unsigned char **bufptr,
00086                                     int len )
00087 {
00088     unsigned char *buffer = *(unsigned char **) bufptr;
00089     rsa_context *rsa;
00090 
00091     /*
00092      * Not a general-purpose parser: only parses public key from *exactly*
00093      *   openssl genrsa -out privkey.pem 512 (or 1024)
00094      *   openssl rsa -in privkey.pem -out privatekey.der -outform der
00095      *   openssl rsa -in privkey.pem -out pubkey.der -outform der -pubout
00096      *
00097      * TODO: make a general-purpose parse
00098      */
00099     if( ignore != 0 || ( len != 94 && len != 162 ) )
00100         return( 0 );
00101 
00102     rsa = (rsa_context *) malloc( sizeof( rsa_rsa ) );
00103     if( rsa == NULL )
00104         return( 0 );
00105 
00106     memset( rsa, 0, sizeof( rsa_context ) );
00107 
00108     if( ( len ==  94 &&
00109           mpi_read_binary( &rsa->N , &buffer[ 25],  64 ) == 0 &&
00110           mpi_read_binary( &rsa->E , &buffer[ 91],   3 ) == 0 ) ||
00111         ( len == 162 &&
00112           mpi_read_binary( &rsa->N , &buffer[ 29], 128 ) == 0 ) &&
00113           mpi_read_binary( &rsa->E , &buffer[159],   3 ) == 0 )
00114     {
00115         /*
00116          * key read successfully
00117          */
00118         rsa->len  = ( mpi_msb( &rsa->N  ) + 7 ) >> 3;
00119         return( rsa );
00120     }
00121     else
00122     {
00123         memset( rsa, 0, sizeof( rsa_context ) );
00124         free( rsa );
00125         return( 0 );
00126     }
00127 }
00128 
00129 #define RSA                     rsa_context
00130 #define RSA_PKCS1_PADDING       1 /* ignored; always encrypt with this */
00131 #define RSA_size( CTX )         (CTX)->len
00132 #define RSA_free( CTX )         rsa_free( CTX )
00133 #define ERR_get_error( )        "ERR_get_error() not supported"
00134 #define RSA_blinding_off( IGNORE )
00135 
00136 #define d2i_RSAPrivateKey( a, b, c ) new rsa_context /* TODO: C++ bleh */
00137 
00138 inline int RSA_public_decrypt ( int size, unsigned char* input, unsigned char* output, RSA* key, int ignore ) { int outsize=size; if( !rsa_pkcs1_decrypt( key, RSA_PUBLIC,  &outsize, input, output ) ) return outsize; else return -1; }
00139 inline int RSA_private_decrypt( int size, unsigned char* input, unsigned char* output, RSA* key, int ignore ) { int outsize=size; if( !rsa_pkcs1_decrypt( key, RSA_PRIVATE, &outsize, input, output ) ) return outsize; else return -1; }
00140 inline int RSA_public_encrypt ( int size, unsigned char* input, unsigned char* output, RSA* key, int ignore ) { if( !rsa_pkcs1_encrypt( key, RSA_PUBLIC,  size, input, output ) ) return RSA_size(key); else return -1; }
00141 inline int RSA_private_encrypt( int size, unsigned char* input, unsigned char* output, RSA* key, int ignore ) { if( !rsa_pkcs1_encrypt( key, RSA_PRIVATE, size, input, output ) ) return RSA_size(key); else return -1; }
00142 
00143 #ifdef __cplusplus
00144 }
00145 #endif
00146 
00147 #endif /* openssl.h */
00148 #endif /* POLARSSL_DEPRECATED_REMOVED */
00149