Commit 7bc05ff4 authored by Paul Bakker's avatar Paul Bakker
Browse files

- Added rsa_encrypt and rsa_decrypt example programs

parent 8934a98f
......@@ -3,6 +3,7 @@ PolarSSL ChangeLog
= Version 1.0.0 released on 2011-07-27
Features
* Expanded cipher layer with support for CFB128 and CTR mode
* Added rsa_encrypt and rsa_decrypt simple example programs.
Changes
* The generic cipher and message digest layer now have normal error
......
......@@ -14,6 +14,7 @@ APPS = aes/aescrypt2 aes/crypt_and_hash \
pkey/dh_genprime pkey/dh_server \
pkey/key_app \
pkey/mpi_demo pkey/rsa_genkey \
pkey/rsa_decrypt pkey/rsa_encrypt \
pkey/rsa_sign pkey/rsa_verify \
pkey/rsa_sign_pss pkey/rsa_verify_pss \
ssl/ssl_client1 ssl/ssl_client2 \
......@@ -95,6 +96,14 @@ pkey/rsa_verify_pss: pkey/rsa_verify_pss.c ../library/libpolarssl.a
echo " CC pkey/rsa_verify_pss.c"
$(CC) $(CFLAGS) $(OFLAGS) pkey/rsa_verify_pss.c $(LDFLAGS) -o $@
pkey/rsa_decrypt: pkey/rsa_decrypt.c ../library/libpolarssl.a
echo " CC pkey/rsa_decrypt.c"
$(CC) $(CFLAGS) $(OFLAGS) pkey/rsa_decrypt.c $(LDFLAGS) -o $@
pkey/rsa_encrypt: pkey/rsa_encrypt.c ../library/libpolarssl.a
echo " CC pkey/rsa_encrypt.c"
$(CC) $(CFLAGS) $(OFLAGS) pkey/rsa_encrypt.c $(LDFLAGS) -o $@
random/gen_random: random/gen_random.c ../library/libpolarssl.a
echo " CC random/gen_random.c"
$(CC) $(CFLAGS) $(OFLAGS) random/gen_random.c $(LDFLAGS) -o $@
......
......@@ -28,6 +28,12 @@ target_link_libraries(rsa_sign_pss polarssl)
add_executable(rsa_verify_pss rsa_verify_pss.c)
target_link_libraries(rsa_verify_pss polarssl)
INSTALL(TARGETS dh_client dh_genprime dh_server key_app mpi_demo rsa_genkey rsa_sign rsa_verify
add_executable(rsa_encrypt rsa_encrypt.c)
target_link_libraries(rsa_encrypt polarssl)
add_executable(rsa_decrypt rsa_decrypt.c)
target_link_libraries(rsa_decrypt polarssl)
INSTALL(TARGETS dh_client dh_genprime dh_server key_app mpi_demo rsa_genkey rsa_sign rsa_verify rsa_encrypt rsa_decrypt
DESTINATION "bin"
PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
/*
* RSA simple decryption program
*
* Copyright (C) 2006-2010, 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 _CRT_SECURE_NO_DEPRECATE
#define _CRT_SECURE_NO_DEPRECATE 1
#endif
#include <string.h>
#include <stdio.h>
#include "polarssl/config.h"
#include "polarssl/rsa.h"
#if !defined(POLARSSL_BIGNUM_C) || !defined(POLARSSL_RSA_C) || \
!defined(POLARSSL_FS_IO)
int main( void )
{
printf("POLARSSL_BIGNUM_C and/or POLARSSL_RSA_C and/or "
"POLARSSL_FS_IO not defined.\n");
return( 0 );
}
#else
int main( int argc, char *argv[] )
{
FILE *f;
int ret, c;
size_t i;
rsa_context rsa;
unsigned char result[1024];
unsigned char buf[512];
((void) argv);
ret = 1;
if( argc != 1 )
{
printf( "usage: rsa_decrypt\n" );
#ifdef WIN32
printf( "\n" );
#endif
goto exit;
}
printf( "\n . Reading public key from rsa_pub.txt" );
fflush( stdout );
if( ( f = fopen( "rsa_pub.txt", "rb" ) ) == NULL )
{
printf( " failed\n ! Could not open rsa_pub.txt\n" \
" ! Please run rsa_genkey first\n\n" );
goto exit;
}
rsa_init( &rsa, RSA_PKCS_V15, 0 );
if( ( ret = mpi_read_file( &rsa.N, 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.E, 16, f ) ) != 0 )
{
printf( " failed\n ! mpi_read_file returned %d\n\n", ret );
goto exit;
}
rsa.len = ( mpi_msb( &rsa.N ) + 7 ) >> 3;
fclose( f );
/*
* Extract the RSA encrypted value from the text file
*/
ret = 1;
if( ( f = fopen( "result-enc.txt", "rb" ) ) == NULL )
{
printf( "\n ! Could not open %s\n\n", "result-enc.txt" );
goto exit;
}
i = 0;
while( fscanf( f, "%02X", &c ) > 0 &&
i < (int) sizeof( buf ) )
buf[i++] = (unsigned char) c;
fclose( f );
if( i != rsa.len )
{
printf( "\n ! Invalid RSA signature format\n\n" );
goto exit;
}
/*
* Decrypt the encrypted RSA data and print the result.
*/
printf( "\n . Decrypting the encrypted data" );
fflush( stdout );
if( ( ret = rsa_pkcs1_decrypt( &rsa, RSA_PUBLIC, &i, buf, result,
1024 ) ) != 0 )
{
printf( " failed\n ! rsa_pkcs1_decrypt returned %d\n\n", ret );
goto exit;
}
printf( "\n . OK\n\n" );
printf( "The decrypted result is: '%s'\n\n", result );
ret = 0;
exit:
#ifdef WIN32
printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
#endif /* POLARSSL_BIGNUM_C && POLARSSL_RSA_C && POLARSSL_FS_IO */
/*
* RSA simple data encryption program
*
* Copyright (C) 2006-2010, 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 _CRT_SECURE_NO_DEPRECATE
#define _CRT_SECURE_NO_DEPRECATE 1
#endif
#include <string.h>
#include <stdio.h>
#include "polarssl/config.h"
#include "polarssl/rsa.h"
#include "polarssl/havege.h"
#if !defined(POLARSSL_BIGNUM_C) || !defined(POLARSSL_RSA_C) || \
!defined(POLARSSL_HAVEGE_C) || !defined(POLARSSL_FS_IO)
int main( void )
{
printf("POLARSSL_BIGNUM_C and/or POLARSSL_RSA_C and/or "
"POLARSSL_HAVEGE_C and/or POLARSSL_FS_IO not defined.\n");
return( 0 );
}
#else
int main( int argc, char *argv[] )
{
FILE *f;
int ret;
size_t i;
rsa_context rsa;
havege_state hs;
unsigned char input[1024];
unsigned char buf[512];
havege_init( &hs );
ret = 1;
if( argc != 2 )
{
printf( "usage: rsa_encrypt <string of max 100 characters>\n" );
#ifdef WIN32
printf( "\n" );
#endif
goto exit;
}
printf( "\n . Reading private key from rsa_priv.txt" );
fflush( stdout );
if( ( f = fopen( "rsa_priv.txt", "rb" ) ) == NULL )
{
ret = 1;
printf( " failed\n ! Could not open rsa_priv.txt\n" \
" ! Please run rsa_genkey first\n\n" );
goto exit;
}
rsa_init( &rsa, RSA_PKCS_V15, 0 );
if( ( ret = mpi_read_file( &rsa.N , 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.E , 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.D , 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.P , 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.Q , 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.DP, 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.DQ, 16, f ) ) != 0 ||
( ret = mpi_read_file( &rsa.QP, 16, f ) ) != 0 )
{
printf( " failed\n ! mpi_read_file returned %d\n\n", ret );
goto exit;
}
rsa.len = ( mpi_msb( &rsa.N ) + 7 ) >> 3;
fclose( f );
if( strlen( argv[1] ) > 100 )
{
printf( " Input data larger than 100 characters.\n\n" );
goto exit;
}
memcpy( input, argv[1], strlen( argv[1] ) );
/*
* Calculate the RSA encryption of the hash.
*/
printf( "\n . Generating the RSA encrypted value" );
fflush( stdout );
if( ( ret = rsa_pkcs1_encrypt( &rsa, havege_rand, &hs, RSA_PRIVATE, strlen( argv[1] ), input, buf ) ) != 0 )
{
printf( " failed\n ! rsa_pkcs1_encrypt returned %d\n\n", ret );
goto exit;
}
/*
* Write the signature into result-enc.txt
*/
if( ( f = fopen( "result-enc.txt", "wb+" ) ) == NULL )
{
ret = 1;
printf( " failed\n ! Could not create %s\n\n", "result-enc.txt" );
goto exit;
}
for( i = 0; i < rsa.len; i++ )
fprintf( f, "%02X%s", buf[i],
( i + 1 ) % 16 == 0 ? "\r\n" : " " );
fclose( f );
printf( "\n . Done (created \"%s\")\n\n", "result-enc.txt" );
exit:
#ifdef WIN32
printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}
#endif /* POLARSSL_BIGNUM_C && POLARSSL_RSA_C && POLARSSL_HAVEGE_C &&
POLARSSL_FS_IO */
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