mirror of
https://git.suyu.dev/suyu/mbedtls.git
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Base X509 certificate writing functinality
This commit is contained in:
Paul Bakker
parent
f451bac000
commit
9397dcb0e8
5 changed files with 908 additions and 56 deletions
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@ -19,6 +19,9 @@ target_link_libraries(crl_app ${libs})
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add_executable(cert_req cert_req.c)
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target_link_libraries(cert_req ${libs})
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install(TARGETS cert_app crl_app cert_req
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add_executable(cert_write cert_write.c)
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target_link_libraries(cert_write ${libs})
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install(TARGETS cert_app crl_app cert_req cert_write
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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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423
programs/x509/cert_write.c
Normal file
423
programs/x509/cert_write.c
Normal file
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@ -0,0 +1,423 @@
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/*
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* Certificate generation and signing
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*
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* Copyright (C) 2006-2013, 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 <stdlib.h>
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#include <stdio.h>
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#include "polarssl/config.h"
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#include "polarssl/error.h"
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#include "polarssl/rsa.h"
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#include "polarssl/x509.h"
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#include "polarssl/base64.h"
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#include "polarssl/x509write.h"
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#include "polarssl/oid.h"
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#if !defined(POLARSSL_BIGNUM_C) || !defined(POLARSSL_RSA_C) || \
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!defined(POLARSSL_X509_WRITE_C) || !defined(POLARSSL_FS_IO)
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int main( int argc, char *argv[] )
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{
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((void) argc);
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((void) argv);
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printf("POLARSSL_BIGNUM_C and/or POLARSSL_RSA_C and/or "
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"POLARSSL_X509_WRITE_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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#define DFL_SUBJECT_KEY "subject.key"
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#define DFL_ISSUER_KEY "ca.key"
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#define DFL_SUBJECT_PWD ""
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#define DFL_ISSUER_PWD ""
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#define DFL_OUTPUT_FILENAME "cert.crt"
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#define DFL_SUBJECT_NAME "CN=Cert,O=PolarSSL,C=NL"
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#define DFL_ISSUER_NAME "CN=CA,O=PolarSSL,C=NL"
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#define DFL_NOT_BEFORE "20010101000000"
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#define DFL_NOT_AFTER "20301231235959"
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#define DFL_SERIAL "1"
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#define DFL_KEY_USAGE 0
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#define DFL_NS_CERT_TYPE 0
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/*
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* global options
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*/
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struct options
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{
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char *subject_key; /* filename of the subject key file */
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char *issuer_key; /* filename of the issuer key file */
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char *subject_pwd; /* password for the subject key file */
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char *issuer_pwd; /* password for the issuer key file */
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char *output_file; /* where to store the constructed key file */
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char *subject_name; /* subject name for certificate */
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char *issuer_name; /* issuer name for certificate */
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char *not_before; /* validity period not before */
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char *not_after; /* validity period not after */
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char *serial; /* serial number string */
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unsigned char key_usage; /* key usage flags */
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unsigned char ns_cert_type; /* NS cert type */
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} opt;
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int write_certificate( x509write_cert *crt, char *output_file )
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{
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int ret;
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FILE *f;
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unsigned char output_buf[4096];
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size_t len = 0;
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memset( output_buf, 0, 4096 );
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if( ( ret = x509write_crt_pem( crt, output_buf, 4096 ) ) < 0 )
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return( ret );
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len = strlen( (char *) output_buf );
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if( ( f = fopen( output_file, "w" ) ) == NULL )
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return( -1 );
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if( fwrite( output_buf, 1, len, f ) != len )
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return( -1 );
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fclose(f);
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return( 0 );
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}
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#define USAGE \
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"\n usage: cert_write param=<>...\n" \
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"\n acceptable parameters:\n" \
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" subject_key=%%s default: subject.key\n" \
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" subject_pwd=%%s default: (empty)\n" \
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" issuer_key=%%s default: ca.key\n" \
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" issuer_pwd=%%s default: (empty)\n" \
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" output_file=%%s default: cert.crt\n" \
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" subject_name=%%s default: CN=Cert,O=PolarSSL,C=NL\n" \
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" issuer_name=%%s default: CN=CA,O=PolarSSL,C=NL\n" \
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" serial=%%s default: 1\n" \
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" not_before=%%s default: 20010101000000\n"\
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" not_after=%%s default: 20301231235959\n"\
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" key_usage=%%s default: (empty)\n" \
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" Comma-separated-list of values:\n" \
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" digital_signature\n" \
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" non_repudiation\n" \
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" key_encipherment\n" \
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" data_encipherment\n" \
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" key_agreement\n" \
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" key_certificate_sign\n" \
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" crl_sign\n" \
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" ns_cert_type=%%s default: (empty)\n" \
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" Comma-separated-list of values:\n" \
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" ssl_client\n" \
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" ssl_server\n" \
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" email\n" \
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" object_signing\n" \
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" ssl_ca\n" \
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" email_ca\n" \
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" object_signing_ca\n" \
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"\n"
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int main( int argc, char *argv[] )
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{
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int ret = 0;
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rsa_context issuer_rsa, subject_rsa;
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char buf[1024];
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int i, j, n;
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char *p, *q, *r;
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x509write_cert crt;
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mpi serial;
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/*
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* Set to sane values
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*/
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x509write_crt_init( &crt );
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x509write_crt_set_md_alg( &crt, POLARSSL_MD_SHA1 );
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rsa_init( &issuer_rsa, RSA_PKCS_V15, 0 );
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rsa_init( &subject_rsa, RSA_PKCS_V15, 0 );
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mpi_init( &serial );
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memset( buf, 0, 1024 );
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if( argc == 0 )
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{
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usage:
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printf( USAGE );
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ret = 1;
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goto exit;
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}
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opt.subject_key = DFL_SUBJECT_KEY;
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opt.issuer_key = DFL_ISSUER_KEY;
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opt.subject_pwd = DFL_SUBJECT_PWD;
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opt.issuer_pwd = DFL_ISSUER_PWD;
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opt.output_file = DFL_OUTPUT_FILENAME;
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opt.subject_name = DFL_SUBJECT_NAME;
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opt.issuer_name = DFL_ISSUER_NAME;
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opt.not_before = DFL_NOT_BEFORE;
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opt.not_after = DFL_NOT_AFTER;
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opt.serial = DFL_SERIAL;
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opt.key_usage = DFL_KEY_USAGE;
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opt.ns_cert_type = DFL_NS_CERT_TYPE;
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for( i = 1; i < argc; i++ )
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{
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p = argv[i];
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if( ( q = strchr( p, '=' ) ) == NULL )
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goto usage;
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*q++ = '\0';
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n = strlen( p );
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for( j = 0; j < n; j++ )
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{
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if( argv[i][j] >= 'A' && argv[i][j] <= 'Z' )
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argv[i][j] |= 0x20;
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}
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if( strcmp( p, "subject_key" ) == 0 )
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opt.subject_key = q;
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else if( strcmp( p, "issuer_key" ) == 0 )
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opt.issuer_key = q;
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else if( strcmp( p, "subject_pwd" ) == 0 )
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opt.subject_pwd = q;
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else if( strcmp( p, "issuer_pwd" ) == 0 )
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opt.issuer_pwd = q;
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else if( strcmp( p, "output_file" ) == 0 )
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opt.output_file = q;
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else if( strcmp( p, "subject_name" ) == 0 )
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{
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opt.subject_name = q;
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}
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else if( strcmp( p, "issuer_name" ) == 0 )
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{
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opt.issuer_name = q;
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}
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else if( strcmp( p, "not_before" ) == 0 )
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{
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opt.not_before = q;
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}
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else if( strcmp( p, "not_after" ) == 0 )
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{
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opt.not_after = q;
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}
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else if( strcmp( p, "serial" ) == 0 )
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{
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opt.serial = q;
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}
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else if( strcmp( p, "key_usage" ) == 0 )
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{
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while( q != NULL )
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{
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if( ( r = strchr( q, ',' ) ) != NULL )
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*r++ = '\0';
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if( strcmp( q, "digital_signature" ) == 0 )
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opt.key_usage |= KU_DIGITAL_SIGNATURE;
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else if( strcmp( q, "non_repudiation" ) == 0 )
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opt.key_usage |= KU_NON_REPUDIATION;
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else if( strcmp( q, "key_encipherment" ) == 0 )
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opt.key_usage |= KU_KEY_ENCIPHERMENT;
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else if( strcmp( q, "data_encipherment" ) == 0 )
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opt.key_usage |= KU_DATA_ENCIPHERMENT;
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else if( strcmp( q, "key_agreement" ) == 0 )
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opt.key_usage |= KU_KEY_AGREEMENT;
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else if( strcmp( q, "key_cert_sign" ) == 0 )
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opt.key_usage |= KU_KEY_CERT_SIGN;
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else if( strcmp( q, "crl_sign" ) == 0 )
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opt.key_usage |= KU_CRL_SIGN;
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else
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goto usage;
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q = r;
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}
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}
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else if( strcmp( p, "ns_cert_type" ) == 0 )
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{
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while( q != NULL )
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{
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if( ( r = strchr( q, ',' ) ) != NULL )
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*r++ = '\0';
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if( strcmp( q, "ssl_client" ) == 0 )
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opt.ns_cert_type |= NS_CERT_TYPE_SSL_CLIENT;
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else if( strcmp( q, "ssl_server" ) == 0 )
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opt.ns_cert_type |= NS_CERT_TYPE_SSL_SERVER;
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else if( strcmp( q, "email" ) == 0 )
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opt.ns_cert_type |= NS_CERT_TYPE_EMAIL;
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else if( strcmp( q, "object_signing" ) == 0 )
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opt.ns_cert_type |= NS_CERT_TYPE_OBJECT_SIGNING;
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else if( strcmp( q, "ssl_ca" ) == 0 )
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opt.ns_cert_type |= NS_CERT_TYPE_SSL_CA;
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else if( strcmp( q, "email_ca" ) == 0 )
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opt.ns_cert_type |= NS_CERT_TYPE_EMAIL_CA;
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else if( strcmp( q, "object_signing_ca" ) == 0 )
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opt.ns_cert_type |= NS_CERT_TYPE_OBJECT_SIGNING_CA;
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else
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goto usage;
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q = r;
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}
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}
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else
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goto usage;
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}
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// Parse serial to MPI
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//
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if( ( ret = mpi_read_string( &serial, 10, opt.serial ) ) != 0 )
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{
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#ifdef POLARSSL_ERROR_C
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error_strerror( ret, buf, 1024 );
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#endif
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printf( " failed\n ! mpi_read_string returned -0x%02x - %s\n\n", -ret, buf );
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goto exit;
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}
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/*
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if( opt.key_usage )
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x509write_csr_set_key_usage( &req, opt.key_usage );
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if( opt.ns_cert_type )
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x509write_csr_set_ns_cert_type( &req, opt.ns_cert_type );
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*/
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/*
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* 1.0. Check the names for validity
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*/
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if( ( ret = x509write_crt_set_subject_name( &crt, opt.subject_name ) ) != 0 )
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{
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#ifdef POLARSSL_ERROR_C
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error_strerror( ret, buf, 1024 );
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#endif
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printf( " failed\n ! x509write_crt_set_subject_name returned -0x%02x - %s\n\n", -ret, buf );
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goto exit;
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}
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if( ( ret = x509write_crt_set_issuer_name( &crt, opt.issuer_name ) ) != 0 )
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{
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#ifdef POLARSSL_ERROR_C
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error_strerror( ret, buf, 1024 );
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#endif
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printf( " failed\n ! x509write_crt_set_issuer_name returned -0x%02x - %s\n\n", -ret, buf );
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goto exit;
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}
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/*
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* 1.1. Load the keys
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*/
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printf( "\n . Loading the subject key ..." );
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fflush( stdout );
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ret = x509parse_keyfile_rsa( &subject_rsa, opt.subject_key, opt.subject_pwd );
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if( ret != 0 )
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{
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#ifdef POLARSSL_ERROR_C
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error_strerror( ret, buf, 1024 );
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#endif
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printf( " failed\n ! x509parse_keyfile_rsa returned -0x%02x - %s\n\n", -ret, buf );
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goto exit;
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}
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x509write_crt_set_subject_key( &crt, &subject_rsa );
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printf( " ok\n" );
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printf( " . Loading the issuer key ..." );
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fflush( stdout );
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ret = x509parse_keyfile_rsa( &issuer_rsa, opt.issuer_key, opt.issuer_pwd );
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if( ret != 0 )
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{
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#ifdef POLARSSL_ERROR_C
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error_strerror( ret, buf, 1024 );
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#endif
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printf( " failed\n ! x509parse_keyfile_rsa returned -x%02x - %s\n\n", -ret, buf );
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goto exit;
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}
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x509write_crt_set_issuer_key( &crt, &issuer_rsa );
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printf( " ok\n" );
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printf( " . Setting certificate values ..." );
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fflush( stdout );
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ret = x509write_crt_set_serial( &crt, &serial );
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if( ret != 0 )
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{
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#ifdef POLARSSL_ERROR_C
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error_strerror( ret, buf, 1024 );
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#endif
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printf( " failed\n ! x509write_crt_set_serial returned -0x%02x - %s\n\n", -ret, buf );
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goto exit;
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}
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ret = x509write_crt_set_validity( &crt, opt.not_before, opt.not_after );
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if( ret != 0 )
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{
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#ifdef POLARSSL_ERROR_C
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error_strerror( ret, buf, 1024 );
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#endif
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printf( " failed\n ! x509write_crt_set_validity returned -0x%02x - %s\n\n", -ret, buf );
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goto exit;
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}
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printf( " ok\n" );
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/*
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* 1.2. Writing the request
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*/
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printf( " . Writing the certificate..." );
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fflush( stdout );
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if( ( ret = write_certificate( &crt, opt.output_file ) ) != 0 )
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{
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#ifdef POLARSSL_ERROR_C
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error_strerror( ret, buf, 1024 );
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#endif
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printf( " failed\n ! write_certifcate -0x%02x - %s\n\n", -ret, buf );
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goto exit;
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}
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printf( " ok\n" );
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exit:
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x509write_crt_free( &crt );
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rsa_free( &subject_rsa );
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rsa_free( &issuer_rsa );
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mpi_free( &serial );
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#if defined(_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 &&
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POLARSSet_serial_X509_WRITE_C && POLARSSL_FS_IO */
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