diff --git a/programs/x509/cert_req.c b/programs/x509/cert_req.c
new file mode 100644
index 0000000..4bcfbbe
--- /dev/null
+++ b/programs/x509/cert_req.c
@@ -0,0 +1,298 @@
+/*
+ *  Certificate request generation
+ *
+ *  Copyright (C) 2006-2011, 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 <stdlib.h>
+#include <stdio.h>
+
+#include "polarssl/config.h"
+
+#include "polarssl/error.h"
+#include "polarssl/rsa.h"
+#include "polarssl/x509.h"
+#include "polarssl/base64.h"
+#include "polarssl/x509write.h"
+
+#define DFL_FILENAME            "keyfile.key"
+#define DFL_DEBUG_LEVEL         0
+#define DFL_OUTPUT_FILENAME     "cert.req"
+#define DFL_SUBJECT_NAME        "CN=Cert,O=PolarSSL,C=NL"
+
+/*
+ * global options
+ */
+struct options
+{
+    char *filename;             /* filename of the key file             */
+    int debug_level;            /* level of debugging                   */
+    char *output_file;          /* where to store the constructed key file  */
+    char *subject_name;         /* subject name for certificate request */
+} opt;
+
+void my_debug( void *ctx, int level, const char *str )
+{
+    if( level < opt.debug_level )
+    {
+        fprintf( (FILE *) ctx, "%s", str );
+        fflush(  (FILE *) ctx  );
+    }
+}
+
+void write_certificate_request( rsa_context *rsa, x509_req_name *req_name,
+                                char *output_file )
+{
+    FILE *f;
+    unsigned char output_buf[4096];
+    unsigned char base_buf[4096];
+    unsigned char *c;
+    int ret;
+    size_t len = 0, olen = 4096;
+
+    memset(output_buf, 0, 4096);
+    ret = x509_write_cert_req( output_buf, 4096, rsa, req_name );
+
+    if( ret < 0 )
+        return;
+
+    len = ret;
+    c = output_buf + 4095 - len;
+
+    base64_encode( base_buf, &olen, c, len );
+
+    c = base_buf;
+
+    f = fopen( output_file, "w" );
+    fprintf(f, "-----BEGIN CERTIFICATE REQUEST-----\n");
+    while (olen)
+    {
+        int use_len = olen;
+        if (use_len > 64) use_len = 64;
+        fwrite( c, 1, use_len, f );
+        olen -= use_len;
+        c += use_len;
+        fprintf(f, "\n");
+    }
+    fprintf(f, "-----END CERTIFICATE REQUEST-----\n");
+    fclose(f);
+}
+
+#define USAGE \
+    "\n usage: key_app param=<>...\n"                   \
+    "\n acceptable parameters:\n"                       \
+    "    filename=%%s         default: keyfile.key\n"   \
+    "    debug_level=%%d      default: 0 (disabled)\n"  \
+    "    output_file=%%s      default: cert.req\n"      \
+    "    subject_name=%%s     default: CN=Cert,O=PolarSSL,C=NL\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, j, n;
+    char *p, *q;
+    char *s, *c, *end;
+    int in_tag;
+    char *oid = NULL;
+    x509_req_name *req_name = NULL;
+    x509_req_name *cur = req_name;
+
+    /*
+     * Set to sane values
+     */
+    memset( &rsa, 0, sizeof( rsa_context ) );
+    memset( buf, 0, 1024 );
+
+    if( argc == 0 )
+    {
+    usage:
+        printf( USAGE );
+        goto exit;
+    }
+
+    opt.filename            = DFL_FILENAME;
+    opt.debug_level         = DFL_DEBUG_LEVEL;
+    opt.output_file         = DFL_OUTPUT_FILENAME;
+    opt.subject_name        = DFL_SUBJECT_NAME;
+
+    for( i = 1; i < argc; i++ )
+    {
+
+        p = argv[i];
+        if( ( q = strchr( p, '=' ) ) == NULL )
+            goto usage;
+        *q++ = '\0';
+
+        n = strlen( p );
+        for( j = 0; j < n; j++ )
+        {
+            if( argv[i][j] >= 'A' && argv[i][j] <= 'Z' )
+                argv[i][j] |= 0x20;
+        }
+
+        if( strcmp( p, "filename" ) == 0 )
+            opt.filename = q;
+        else if( strcmp( p, "output_file" ) == 0 )
+            opt.output_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 if( strcmp( p, "subject_name" ) == 0 )
+        {
+            printf("p: '%s', q: '%s'\n", p, q);
+            opt.subject_name = q;
+        }
+        else
+            goto usage;
+    }
+
+    /*
+     * 1.0. Check the subject name for validity
+     */
+    s = opt.subject_name;
+    end = s + strlen( s );
+
+    c = s;
+
+    in_tag = 1;
+    while( c <= end )
+    {
+        if( in_tag && *c == '=' )
+        {
+            if( memcmp( s, "CN", 2 ) == 0 && c - s == 2 )
+                oid = OID_CN;
+            else if( memcmp( s, "C", 1 ) == 0 && c - s == 1 )
+                oid = OID_COUNTRY;
+            else if( memcmp( s, "O", 1 ) == 0 && c - s == 1 )
+                oid = OID_ORGANIZATION;
+            else if( memcmp( s, "L", 1 ) == 0 && c - s == 1 )
+                oid = OID_LOCALITY;
+            else if( memcmp( s, "R", 1 ) == 0 && c - s == 1 )
+                oid = OID_PKCS9_EMAIL;
+            else if( memcmp( s, "OU", 2 ) == 0 && c - s == 2 )
+                oid = OID_ORG_UNIT;
+            else if( memcmp( s, "ST", 2 ) == 0 && c - s == 2 )
+                oid = OID_STATE;
+            else
+            {
+                printf("Failed to parse subject name.\n");
+                goto exit;
+            }
+
+            s = c + 1;
+            in_tag = 0;
+        }
+        
+        if( !in_tag && ( *c == ',' || c == end ) )
+        {
+            if( c - s > 127 )
+            {
+                printf("Name too large for buffer.\n");
+                goto exit;
+            }
+
+            if( cur == NULL )
+            {
+                req_name = malloc( sizeof(x509_req_name) );
+                cur = req_name;
+            }
+            else
+            {
+                cur->next = malloc( sizeof(x509_req_name) );
+                cur = cur->next;
+            }
+
+            if( cur == NULL )
+            {
+                printf( "Failed to allocate memory.\n" );
+                goto exit;
+            }
+
+            memset( cur, 0, sizeof(x509_req_name) );
+
+            strncpy( cur->oid, oid, strlen( oid ) );
+            strncpy( cur->name, s, c - s );
+
+            s = c + 1;
+            in_tag = 1;
+        }
+        c++;
+    }
+
+    /*
+     * 1.1. Load the key
+     */
+    printf( "\n  . Loading the private key ..." );
+    fflush( stdout );
+
+    ret = x509parse_keyfile( &rsa, opt.filename, NULL );
+
+    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" );
+
+    write_certificate_request( &rsa, req_name, opt.output_file );
+
+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 */