- Added rsa_encrypt and rsa_decrypt example programs
This commit is contained in:
Paul Bakker
parent
8934a98f82
commit
7bc05ff4a6
5 changed files with 311 additions and 1 deletions
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@ -3,6 +3,7 @@ PolarSSL ChangeLog
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= Version 1.0.0 released on 2011-07-27
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Features
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* Expanded cipher layer with support for CFB128 and CTR mode
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* Added rsa_encrypt and rsa_decrypt simple example programs.
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Changes
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* The generic cipher and message digest layer now have normal error
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@ -14,6 +14,7 @@ APPS = aes/aescrypt2 aes/crypt_and_hash \
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pkey/dh_genprime pkey/dh_server \
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pkey/key_app \
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pkey/mpi_demo pkey/rsa_genkey \
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pkey/rsa_decrypt pkey/rsa_encrypt \
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pkey/rsa_sign pkey/rsa_verify \
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pkey/rsa_sign_pss pkey/rsa_verify_pss \
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ssl/ssl_client1 ssl/ssl_client2 \
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@ -95,6 +96,14 @@ pkey/rsa_verify_pss: pkey/rsa_verify_pss.c ../library/libpolarssl.a
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echo " CC pkey/rsa_verify_pss.c"
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$(CC) $(CFLAGS) $(OFLAGS) pkey/rsa_verify_pss.c $(LDFLAGS) -o $@
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pkey/rsa_decrypt: pkey/rsa_decrypt.c ../library/libpolarssl.a
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echo " CC pkey/rsa_decrypt.c"
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$(CC) $(CFLAGS) $(OFLAGS) pkey/rsa_decrypt.c $(LDFLAGS) -o $@
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pkey/rsa_encrypt: pkey/rsa_encrypt.c ../library/libpolarssl.a
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echo " CC pkey/rsa_encrypt.c"
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$(CC) $(CFLAGS) $(OFLAGS) pkey/rsa_encrypt.c $(LDFLAGS) -o $@
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random/gen_random: random/gen_random.c ../library/libpolarssl.a
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echo " CC random/gen_random.c"
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$(CC) $(CFLAGS) $(OFLAGS) random/gen_random.c $(LDFLAGS) -o $@
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@ -28,6 +28,12 @@ target_link_libraries(rsa_sign_pss polarssl)
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add_executable(rsa_verify_pss rsa_verify_pss.c)
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target_link_libraries(rsa_verify_pss polarssl)
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INSTALL(TARGETS dh_client dh_genprime dh_server key_app mpi_demo rsa_genkey rsa_sign rsa_verify
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add_executable(rsa_encrypt rsa_encrypt.c)
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target_link_libraries(rsa_encrypt polarssl)
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add_executable(rsa_decrypt rsa_decrypt.c)
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target_link_libraries(rsa_decrypt polarssl)
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INSTALL(TARGETS dh_client dh_genprime dh_server key_app mpi_demo rsa_genkey rsa_sign rsa_verify rsa_encrypt rsa_decrypt
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DESTINATION "bin"
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PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
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144
programs/pkey/rsa_decrypt.c
Normal file
144
programs/pkey/rsa_decrypt.c
Normal file
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@ -0,0 +1,144 @@
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/*
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* RSA simple decryption program
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*
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* Copyright (C) 2006-2010, Brainspark B.V.
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*
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* This file is part of PolarSSL (http://www.polarssl.org)
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* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _CRT_SECURE_NO_DEPRECATE
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#define _CRT_SECURE_NO_DEPRECATE 1
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#endif
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#include <string.h>
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#include <stdio.h>
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#include "polarssl/config.h"
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#include "polarssl/rsa.h"
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#if !defined(POLARSSL_BIGNUM_C) || !defined(POLARSSL_RSA_C) || \
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!defined(POLARSSL_FS_IO)
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int main( void )
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{
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printf("POLARSSL_BIGNUM_C and/or POLARSSL_RSA_C and/or "
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"POLARSSL_FS_IO not defined.\n");
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return( 0 );
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}
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#else
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int main( int argc, char *argv[] )
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{
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FILE *f;
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int ret, c;
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size_t i;
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rsa_context rsa;
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unsigned char result[1024];
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unsigned char buf[512];
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((void) argv);
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ret = 1;
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if( argc != 1 )
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{
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printf( "usage: rsa_decrypt\n" );
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#ifdef WIN32
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printf( "\n" );
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#endif
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goto exit;
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}
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printf( "\n . Reading public key from rsa_pub.txt" );
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fflush( stdout );
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if( ( f = fopen( "rsa_pub.txt", "rb" ) ) == NULL )
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{
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printf( " failed\n ! Could not open rsa_pub.txt\n" \
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" ! Please run rsa_genkey first\n\n" );
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goto exit;
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}
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rsa_init( &rsa, RSA_PKCS_V15, 0 );
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if( ( ret = mpi_read_file( &rsa.N, 16, f ) ) != 0 ||
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( ret = mpi_read_file( &rsa.E, 16, f ) ) != 0 )
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{
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printf( " failed\n ! mpi_read_file returned %d\n\n", ret );
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goto exit;
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}
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rsa.len = ( mpi_msb( &rsa.N ) + 7 ) >> 3;
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fclose( f );
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/*
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* Extract the RSA encrypted value from the text file
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*/
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ret = 1;
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if( ( f = fopen( "result-enc.txt", "rb" ) ) == NULL )
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{
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printf( "\n ! Could not open %s\n\n", "result-enc.txt" );
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goto exit;
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}
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i = 0;
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while( fscanf( f, "%02X", &c ) > 0 &&
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i < (int) sizeof( buf ) )
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buf[i++] = (unsigned char) c;
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fclose( f );
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if( i != rsa.len )
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{
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printf( "\n ! Invalid RSA signature format\n\n" );
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goto exit;
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}
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/*
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* Decrypt the encrypted RSA data and print the result.
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*/
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printf( "\n . Decrypting the encrypted data" );
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fflush( stdout );
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if( ( ret = rsa_pkcs1_decrypt( &rsa, RSA_PUBLIC, &i, buf, result,
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1024 ) ) != 0 )
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{
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printf( " failed\n ! rsa_pkcs1_decrypt returned %d\n\n", ret );
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goto exit;
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}
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printf( "\n . OK\n\n" );
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printf( "The decrypted result is: '%s'\n\n", result );
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ret = 0;
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exit:
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#ifdef WIN32
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printf( " + Press Enter to exit this program.\n" );
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fflush( stdout ); getchar();
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#endif
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return( ret );
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}
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#endif /* POLARSSL_BIGNUM_C && POLARSSL_RSA_C && POLARSSL_FS_IO */
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150
programs/pkey/rsa_encrypt.c
Normal file
150
programs/pkey/rsa_encrypt.c
Normal file
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@ -0,0 +1,150 @@
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/*
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* RSA simple data encryption program
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*
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* Copyright (C) 2006-2010, Brainspark B.V.
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*
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* This file is part of PolarSSL (http://www.polarssl.org)
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* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _CRT_SECURE_NO_DEPRECATE
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#define _CRT_SECURE_NO_DEPRECATE 1
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#endif
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#include <string.h>
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#include <stdio.h>
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#include "polarssl/config.h"
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#include "polarssl/rsa.h"
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#include "polarssl/havege.h"
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#if !defined(POLARSSL_BIGNUM_C) || !defined(POLARSSL_RSA_C) || \
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!defined(POLARSSL_HAVEGE_C) || !defined(POLARSSL_FS_IO)
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int main( void )
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{
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printf("POLARSSL_BIGNUM_C and/or POLARSSL_RSA_C and/or "
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"POLARSSL_HAVEGE_C and/or POLARSSL_FS_IO not defined.\n");
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return( 0 );
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}
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#else
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int main( int argc, char *argv[] )
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{
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FILE *f;
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int ret;
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size_t i;
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rsa_context rsa;
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havege_state hs;
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unsigned char input[1024];
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unsigned char buf[512];
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havege_init( &hs );
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ret = 1;
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if( argc != 2 )
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{
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printf( "usage: rsa_encrypt <string of max 100 characters>\n" );
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#ifdef WIN32
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printf( "\n" );
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#endif
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goto exit;
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}
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printf( "\n . Reading private key from rsa_priv.txt" );
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fflush( stdout );
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if( ( f = fopen( "rsa_priv.txt", "rb" ) ) == NULL )
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{
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ret = 1;
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printf( " failed\n ! Could not open rsa_priv.txt\n" \
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" ! Please run rsa_genkey first\n\n" );
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goto exit;
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}
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rsa_init( &rsa, RSA_PKCS_V15, 0 );
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if( ( ret = mpi_read_file( &rsa.N , 16, f ) ) != 0 ||
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( ret = mpi_read_file( &rsa.E , 16, f ) ) != 0 ||
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( ret = mpi_read_file( &rsa.D , 16, f ) ) != 0 ||
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( ret = mpi_read_file( &rsa.P , 16, f ) ) != 0 ||
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( ret = mpi_read_file( &rsa.Q , 16, f ) ) != 0 ||
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( ret = mpi_read_file( &rsa.DP, 16, f ) ) != 0 ||
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( ret = mpi_read_file( &rsa.DQ, 16, f ) ) != 0 ||
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( ret = mpi_read_file( &rsa.QP, 16, f ) ) != 0 )
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{
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printf( " failed\n ! mpi_read_file returned %d\n\n", ret );
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goto exit;
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}
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rsa.len = ( mpi_msb( &rsa.N ) + 7 ) >> 3;
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fclose( f );
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if( strlen( argv[1] ) > 100 )
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{
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printf( " Input data larger than 100 characters.\n\n" );
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goto exit;
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}
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memcpy( input, argv[1], strlen( argv[1] ) );
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/*
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* Calculate the RSA encryption of the hash.
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*/
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printf( "\n . Generating the RSA encrypted value" );
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fflush( stdout );
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if( ( ret = rsa_pkcs1_encrypt( &rsa, havege_rand, &hs, RSA_PRIVATE, strlen( argv[1] ), input, buf ) ) != 0 )
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{
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printf( " failed\n ! rsa_pkcs1_encrypt returned %d\n\n", ret );
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goto exit;
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}
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/*
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* Write the signature into result-enc.txt
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*/
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if( ( f = fopen( "result-enc.txt", "wb+" ) ) == NULL )
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{
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ret = 1;
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printf( " failed\n ! Could not create %s\n\n", "result-enc.txt" );
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goto exit;
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}
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for( i = 0; i < rsa.len; i++ )
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fprintf( f, "%02X%s", buf[i],
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( i + 1 ) % 16 == 0 ? "\r\n" : " " );
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fclose( f );
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printf( "\n . Done (created \"%s\")\n\n", "result-enc.txt" );
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exit:
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#ifdef WIN32
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printf( " + Press Enter to exit this program.\n" );
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fflush( stdout ); getchar();
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#endif
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return( ret );
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}
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#endif /* POLARSSL_BIGNUM_C && POLARSSL_RSA_C && POLARSSL_HAVEGE_C &&
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POLARSSL_FS_IO */
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