/* * Key reading application * * Copyright (C) 2006-2012, Brainspark B.V. * * This file is part of PolarSSL (http://www.polarssl.org) * Lead Maintainer: Paul Bakker * * 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 #include #include #include "polarssl/config.h" #include "polarssl/error.h" #include "polarssl/rsa.h" #include "polarssl/x509.h" #define MODE_NONE 0 #define MODE_PRIVATE 1 #define MODE_PUBLIC 2 #define DFL_MODE MODE_NONE #define DFL_FILENAME "keyfile.key" #define DFL_PASSWORD "" #define DFL_PASSWORD_FILE "" #define DFL_DEBUG_LEVEL 0 /* * global options */ struct options { int mode; /* the mode to run the application in */ const char *filename; /* filename of the key file */ const char *password; /* password for the private key */ const char *password_file; /* password_file for the private key */ int debug_level; /* level of debugging */ } opt; void my_debug( void *ctx, int level, const char *str ) { if( level < opt.debug_level ) { fprintf( (FILE *) ctx, "%s", str ); fflush( (FILE *) ctx ); } } #define USAGE \ "\n usage: key_app param=<>...\n" \ "\n acceptable parameters:\n" \ " mode=private|public default: none\n" \ " filename=%%s default: keyfile.key\n" \ " password=%%s default: \"\"\n" \ " password_file=%%s default: \"\"\n" \ " debug_level=%%d default: 0 (disabled)\n" \ "\n" #if !defined(POLARSSL_BIGNUM_C) || !defined(POLARSSL_RSA_C) || \ !defined(POLARSSL_X509_PARSE_C) || !defined(POLARSSL_FS_IO) int main( int argc, char *argv[] ) { ((void) argc); ((void) argv); printf("POLARSSL_BIGNUM_C and/or POLARSSL_RSA_C and/or " "POLARSSL_X509_PARSE_C and/or POLARSSL_FS_IO not defined.\n"); return( 0 ); } #else int main( int argc, char *argv[] ) { int ret = 0; rsa_context rsa; char buf[1024]; int i; char *p, *q; /* * Set to sane values */ memset( &rsa, 0, sizeof( rsa_context ) ); memset( buf, 0, 1024 ); if( argc == 0 ) { usage: printf( USAGE ); goto exit; } opt.mode = DFL_MODE; opt.filename = DFL_FILENAME; opt.password = DFL_PASSWORD; opt.password_file = DFL_PASSWORD_FILE; opt.debug_level = DFL_DEBUG_LEVEL; for( i = 1; i < argc; i++ ) { p = argv[i]; if( ( q = strchr( p, '=' ) ) == NULL ) goto usage; *q++ = '\0'; if( strcmp( p, "mode" ) == 0 ) { if( strcmp( q, "private" ) == 0 ) opt.mode = MODE_PRIVATE; else if( strcmp( q, "public" ) == 0 ) opt.mode = MODE_PUBLIC; else goto usage; } else if( strcmp( p, "filename" ) == 0 ) opt.filename = q; else if( strcmp( p, "password" ) == 0 ) opt.password = q; else if( strcmp( p, "password_file" ) == 0 ) opt.password_file = q; else if( strcmp( p, "debug_level" ) == 0 ) { opt.debug_level = atoi( q ); if( opt.debug_level < 0 || opt.debug_level > 65535 ) goto usage; } else goto usage; } if( opt.mode == MODE_PRIVATE ) { if( strlen( opt.password ) && strlen( opt.password_file ) ) { printf( "Error: cannot have both password and password_file\n" ); goto usage; } if( strlen( opt.password_file ) ) { FILE *f; printf( "\n . Loading the password file ..." ); if( ( f = fopen( opt.password_file, "rb" ) ) == NULL ) { printf( " failed\n ! fopen returned NULL\n" ); goto exit; } fgets( buf, 1024, f ); fclose( f ); i = (int) strlen( buf ); if( buf[i - 1] == '\n' ) buf[i - 1] = '\0'; if( buf[i - 2] == '\r' ) buf[i - 2] = '\0'; opt.password = buf; } /* * 1.1. Load the key */ printf( "\n . Loading the private key ..." ); fflush( stdout ); ret = x509parse_keyfile( &rsa, opt.filename, opt.password ); if( ret != 0 ) { #ifdef POLARSSL_ERROR_C error_strerror( ret, buf, 1024 ); #endif printf( " failed\n ! x509parse_key returned %d - %s\n\n", ret, buf ); rsa_free( &rsa ); goto exit; } printf( " ok\n" ); /* * 1.2 Print the key */ printf( " . Key information ...\n" ); mpi_write_file( "N: ", &rsa.N, 16, NULL ); mpi_write_file( "E: ", &rsa.E, 16, NULL ); mpi_write_file( "D: ", &rsa.D, 16, NULL ); mpi_write_file( "P: ", &rsa.P, 16, NULL ); mpi_write_file( "Q: ", &rsa.Q, 16, NULL ); mpi_write_file( "DP: ", &rsa.DP, 16, NULL ); mpi_write_file( "DQ: ", &rsa.DQ, 16, NULL ); mpi_write_file( "QP: ", &rsa.QP, 16, NULL ); } else if( opt.mode == MODE_PUBLIC ) { /* * 1.1. Load the key */ printf( "\n . Loading the public key ..." ); fflush( stdout ); ret = x509parse_public_keyfile( &rsa, opt.filename ); if( ret != 0 ) { #ifdef POLARSSL_ERROR_C error_strerror( ret, buf, 1024 ); #endif printf( " failed\n ! x509parse_public_key returned %d - %s\n\n", ret, buf ); rsa_free( &rsa ); goto exit; } printf( " ok\n" ); /* * 1.2 Print the key */ printf( " . Key information ...\n" ); mpi_write_file( "N: ", &rsa.N, 16, NULL ); mpi_write_file( "E: ", &rsa.E, 16, NULL ); } else goto usage; exit: rsa_free( &rsa ); #if defined(_WIN32) printf( " + Press Enter to exit this program.\n" ); fflush( stdout ); getchar(); #endif return( ret ); } #endif /* POLARSSL_BIGNUM_C && POLARSSL_RSA_C && POLARSSL_X509_PARSE_C && POLARSSL_FS_IO */