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- Added test application for RSASSA-PSS signing and verification

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Paul Bakker 2011-03-25 14:07:53 +00:00
parent e77db2e119
commit 2291f6c19d
2 changed files with 250 additions and 0 deletions
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125
programs/pkey/rsa_sign_pss.c Normal file
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/*
* RSASSA-PSS/SHA-1 signature creation 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/havege.h"
#include "polarssl/md.h"
#include "polarssl/rsa.h"
#include "polarssl/sha1.h"
#include "polarssl/x509.h"
int main( int argc, char *argv[] )
{
FILE *f;
int ret;
rsa_context rsa;
havege_state hs;
unsigned char hash[20];
unsigned char buf[512];
char filename[512];
ret = 1;
if( argc != 3 )
{
printf( "usage: rsa_sign_pss <key_file> <filename>\n" );
#ifdef WIN32
printf( "\n" );
#endif
goto exit;
}
printf( "\n . Reading private key from '%s'", argv[1] );
fflush( stdout );
havege_init( &hs );
rsa_init( &rsa, RSA_PKCS_V21, POLARSSL_MD_SHA1 );
if( ( ret = x509parse_keyfile( &rsa, argv[1], "" ) ) != 0 )
{
ret = 1;
printf( " failed\n ! Could not open '%s'\n", argv[1] );
goto exit;
}
/*
* Compute the SHA-1 hash of the input file,
* then calculate the RSA signature of the hash.
*/
printf( "\n . Generating the RSA/SHA-1 signature" );
fflush( stdout );
if( ( ret = sha1_file( argv[2], hash ) ) != 0 )
{
printf( " failed\n ! Could not open or read %s\n\n", argv[2] );
goto exit;
}
if( ( ret = rsa_pkcs1_sign( &rsa, havege_rand, &hs, RSA_PRIVATE, SIG_RSA_SHA1,
20, hash, buf ) ) != 0 )
{
printf( " failed\n ! rsa_pkcs1_sign returned %d\n\n", ret );
goto exit;
}
/*
* Write the signature into <filename>-sig.txt
*/
snprintf( filename, 512, "%s.sig", argv[2] );
if( ( f = fopen( filename, "wb+" ) ) == NULL )
{
ret = 1;
printf( " failed\n ! Could not create %s\n\n", filename );
goto exit;
}
if( fwrite( buf, 1, rsa.len, f ) != (size_t) rsa.len )
{
printf( "failed\n ! fwrite failed\n\n" );
goto exit;
}
fclose( f );
printf( "\n . Done (created \"%s\")\n\n", filename );
exit:
#ifdef WIN32
printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}

125
programs/pkey/rsa_verify_pss.c Normal file
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/*
* RSASSA-PSS/SHA-1 signature verification 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/md.h"
#include "polarssl/pem.h"
#include "polarssl/rsa.h"
#include "polarssl/sha1.h"
#include "polarssl/x509.h"
int main( int argc, char *argv[] )
{
FILE *f;
int ret, i;
rsa_context rsa;
unsigned char hash[20];
unsigned char buf[512];
char filename[512];
ret = 1;
if( argc != 3 )
{
printf( "usage: rsa_verify_pss <key_file> <filename>\n" );
#ifdef WIN32
printf( "\n" );
#endif
goto exit;
}
printf( "\n . Reading public key from '%s'", argv[1] );
fflush( stdout );
rsa_init( &rsa, RSA_PKCS_V21, POLARSSL_MD_SHA1 );
if( ( ret = x509parse_public_keyfile( &rsa, argv[1] ) ) != 0 )
{
printf( " failed\n ! x509parse_public_key returned %d\n\n", ret );
goto exit;
}
/*
* Extract the RSA signature from the text file
*/
ret = 1;
snprintf( filename, 512, "%s.sig", argv[2] );
if( ( f = fopen( filename, "rb" ) ) == NULL )
{
printf( "\n ! Could not open %s\n\n", filename );
goto exit;
}
i = fread( buf, 1, rsa.len, f );
fclose( f );
if( i != rsa.len )
{
printf( "\n ! Invalid RSA signature format\n\n" );
goto exit;
}
/*
* Compute the SHA-1 hash of the input file and compare
* it with the hash decrypted from the RSA signature.
*/
printf( "\n . Verifying the RSA/SHA-1 signature" );
fflush( stdout );
if( ( ret = sha1_file( argv[2], hash ) ) != 0 )
{
printf( " failed\n ! Could not open or read %s\n\n", argv[2] );
goto exit;
}
if( ( ret = rsa_pkcs1_verify( &rsa, RSA_PUBLIC, SIG_RSA_SHA1,
20, hash, buf ) ) != 0 )
{
printf( " failed\n ! rsa_pkcs1_verify returned %d\n\n", ret );
goto exit;
}
printf( "\n . OK (the decrypted SHA-1 hash matches)\n\n" );
ret = 0;
exit:
#ifdef WIN32
printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( ret );
}