diff --git a/library/x509_create.c b/library/x509_create.c
index 5318cd3..9a22052 100644
--- a/library/x509_create.c
+++ b/library/x509_create.c
@@ -20,13 +20,13 @@
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#if !defined(POLARSSL_CONFIG_FILE)
+#if !defined(MBEDTLS_CONFIG_FILE)
 #include "mbedtls/config.h"
 #else
-#include POLARSSL_CONFIG_FILE
+#include MBEDTLS_CONFIG_FILE
 #endif
 
-#if defined(POLARSSL_X509_CREATE_C)
+#if defined(MBEDTLS_X509_CREATE_C)
 
 #include "mbedtls/x509.h"
 #include "mbedtls/asn1write.h"
@@ -49,34 +49,34 @@
 
 static const x509_attr_descriptor_t x509_attrs[] =
 {
-    { ADD_STRLEN( "CN" ),                       OID_AT_CN },
-    { ADD_STRLEN( "commonName" ),               OID_AT_CN },
-    { ADD_STRLEN( "C" ),                        OID_AT_COUNTRY },
-    { ADD_STRLEN( "countryName" ),              OID_AT_COUNTRY },
-    { ADD_STRLEN( "O" ),                        OID_AT_ORGANIZATION },
-    { ADD_STRLEN( "organizationName" ),         OID_AT_ORGANIZATION },
-    { ADD_STRLEN( "L" ),                        OID_AT_LOCALITY },
-    { ADD_STRLEN( "locality" ),                 OID_AT_LOCALITY },
-    { ADD_STRLEN( "R" ),                        OID_PKCS9_EMAIL },
-    { ADD_STRLEN( "OU" ),                       OID_AT_ORG_UNIT },
-    { ADD_STRLEN( "organizationalUnitName" ),   OID_AT_ORG_UNIT },
-    { ADD_STRLEN( "ST" ),                       OID_AT_STATE },
-    { ADD_STRLEN( "stateOrProvinceName" ),      OID_AT_STATE },
-    { ADD_STRLEN( "emailAddress" ),             OID_PKCS9_EMAIL },
-    { ADD_STRLEN( "serialNumber" ),             OID_AT_SERIAL_NUMBER },
-    { ADD_STRLEN( "postalAddress" ),            OID_AT_POSTAL_ADDRESS },
-    { ADD_STRLEN( "postalCode" ),               OID_AT_POSTAL_CODE },
-    { ADD_STRLEN( "dnQualifier" ),              OID_AT_DN_QUALIFIER },
-    { ADD_STRLEN( "title" ),                    OID_AT_TITLE },
-    { ADD_STRLEN( "surName" ),                  OID_AT_SUR_NAME },
-    { ADD_STRLEN( "SN" ),                       OID_AT_SUR_NAME },
-    { ADD_STRLEN( "givenName" ),                OID_AT_GIVEN_NAME },
-    { ADD_STRLEN( "GN" ),                       OID_AT_GIVEN_NAME },
-    { ADD_STRLEN( "initials" ),                 OID_AT_INITIALS },
-    { ADD_STRLEN( "pseudonym" ),                OID_AT_PSEUDONYM },
-    { ADD_STRLEN( "generationQualifier" ),      OID_AT_GENERATION_QUALIFIER },
-    { ADD_STRLEN( "domainComponent" ),          OID_DOMAIN_COMPONENT },
-    { ADD_STRLEN( "DC" ),                       OID_DOMAIN_COMPONENT },
+    { ADD_STRLEN( "CN" ),                       MBEDTLS_OID_AT_CN },
+    { ADD_STRLEN( "commonName" ),               MBEDTLS_OID_AT_CN },
+    { ADD_STRLEN( "C" ),                        MBEDTLS_OID_AT_COUNTRY },
+    { ADD_STRLEN( "countryName" ),              MBEDTLS_OID_AT_COUNTRY },
+    { ADD_STRLEN( "O" ),                        MBEDTLS_OID_AT_ORGANIZATION },
+    { ADD_STRLEN( "organizationName" ),         MBEDTLS_OID_AT_ORGANIZATION },
+    { ADD_STRLEN( "L" ),                        MBEDTLS_OID_AT_LOCALITY },
+    { ADD_STRLEN( "locality" ),                 MBEDTLS_OID_AT_LOCALITY },
+    { ADD_STRLEN( "R" ),                        MBEDTLS_OID_PKCS9_EMAIL },
+    { ADD_STRLEN( "OU" ),                       MBEDTLS_OID_AT_ORG_UNIT },
+    { ADD_STRLEN( "organizationalUnitName" ),   MBEDTLS_OID_AT_ORG_UNIT },
+    { ADD_STRLEN( "ST" ),                       MBEDTLS_OID_AT_STATE },
+    { ADD_STRLEN( "stateOrProvinceName" ),      MBEDTLS_OID_AT_STATE },
+    { ADD_STRLEN( "emailAddress" ),             MBEDTLS_OID_PKCS9_EMAIL },
+    { ADD_STRLEN( "serialNumber" ),             MBEDTLS_OID_AT_SERIAL_NUMBER },
+    { ADD_STRLEN( "postalAddress" ),            MBEDTLS_OID_AT_POSTAL_ADDRESS },
+    { ADD_STRLEN( "postalCode" ),               MBEDTLS_OID_AT_POSTAL_CODE },
+    { ADD_STRLEN( "dnQualifier" ),              MBEDTLS_OID_AT_DN_QUALIFIER },
+    { ADD_STRLEN( "title" ),                    MBEDTLS_OID_AT_TITLE },
+    { ADD_STRLEN( "surName" ),                  MBEDTLS_OID_AT_SUR_NAME },
+    { ADD_STRLEN( "SN" ),                       MBEDTLS_OID_AT_SUR_NAME },
+    { ADD_STRLEN( "givenName" ),                MBEDTLS_OID_AT_GIVEN_NAME },
+    { ADD_STRLEN( "GN" ),                       MBEDTLS_OID_AT_GIVEN_NAME },
+    { ADD_STRLEN( "initials" ),                 MBEDTLS_OID_AT_INITIALS },
+    { ADD_STRLEN( "pseudonym" ),                MBEDTLS_OID_AT_PSEUDONYM },
+    { ADD_STRLEN( "generationQualifier" ),      MBEDTLS_OID_AT_GENERATION_QUALIFIER },
+    { ADD_STRLEN( "domainComponent" ),          MBEDTLS_OID_DOMAIN_COMPONENT },
+    { ADD_STRLEN( "DC" ),                       MBEDTLS_OID_DOMAIN_COMPONENT },
     { NULL, 0, NULL }
 };
 
@@ -92,18 +92,18 @@
     return( cur->oid );
 }
 
-int x509_string_to_names( asn1_named_data **head, const char *name )
+int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name )
 {
     int ret = 0;
     const char *s = name, *c = s;
     const char *end = s + strlen( s );
     const char *oid = NULL;
     int in_tag = 1;
-    char data[X509_MAX_DN_NAME_SIZE];
+    char data[MBEDTLS_X509_MAX_DN_NAME_SIZE];
     char *d = data;
 
     /* Clear existing chain if present */
-    asn1_free_named_data_list( head );
+    mbedtls_asn1_free_named_data_list( head );
 
     while( c <= end )
     {
@@ -111,7 +111,7 @@
         {
             if( ( oid = x509_at_oid_from_name( s, c - s ) ) == NULL )
             {
-                ret = POLARSSL_ERR_X509_UNKNOWN_OID;
+                ret = MBEDTLS_ERR_X509_UNKNOWN_OID;
                 goto exit;
             }
 
@@ -127,17 +127,17 @@
             /* Check for valid escaped characters */
             if( c == end || *c != ',' )
             {
-                ret = POLARSSL_ERR_X509_INVALID_NAME;
+                ret = MBEDTLS_ERR_X509_INVALID_NAME;
                 goto exit;
             }
         }
         else if( !in_tag && ( *c == ',' || c == end ) )
         {
-            if( asn1_store_named_data( head, oid, strlen( oid ),
+            if( mbedtls_asn1_store_named_data( head, oid, strlen( oid ),
                                        (unsigned char *) data,
                                        d - data ) == NULL )
             {
-                return( POLARSSL_ERR_X509_MALLOC_FAILED );
+                return( MBEDTLS_ERR_X509_MALLOC_FAILED );
             }
 
             while( c < end && *(c + 1) == ' ' )
@@ -151,9 +151,9 @@
         {
             *(d++) = *c;
 
-            if( d - data == X509_MAX_DN_NAME_SIZE )
+            if( d - data == MBEDTLS_X509_MAX_DN_NAME_SIZE )
             {
-                ret = POLARSSL_ERR_X509_INVALID_NAME;
+                ret = MBEDTLS_ERR_X509_INVALID_NAME;
                 goto exit;
             }
         }
@@ -166,18 +166,18 @@
     return( ret );
 }
 
-/* The first byte of the value in the asn1_named_data structure is reserved
+/* The first byte of the value in the mbedtls_asn1_named_data structure is reserved
  * to store the critical boolean for us
  */
-int x509_set_extension( asn1_named_data **head, const char *oid, size_t oid_len,
+int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len,
                         int critical, const unsigned char *val, size_t val_len )
 {
-    asn1_named_data *cur;
+    mbedtls_asn1_named_data *cur;
 
-    if( ( cur = asn1_store_named_data( head, oid, oid_len,
+    if( ( cur = mbedtls_asn1_store_named_data( head, oid, oid_len,
                                        NULL, val_len + 1 ) ) == NULL )
     {
-        return( POLARSSL_ERR_X509_MALLOC_FAILED );
+        return( MBEDTLS_ERR_X509_MALLOC_FAILED );
     }
 
     cur->val.p[0] = critical;
@@ -205,60 +205,60 @@
     int ret;
     size_t len = 0;
 
-    // Write PrintableString for all except OID_PKCS9_EMAIL
+    // Write PrintableString for all except MBEDTLS_OID_PKCS9_EMAIL
     //
-    if( OID_SIZE( OID_PKCS9_EMAIL ) == oid_len &&
-        memcmp( oid, OID_PKCS9_EMAIL, oid_len ) == 0 )
+    if( MBEDTLS_OID_SIZE( MBEDTLS_OID_PKCS9_EMAIL ) == oid_len &&
+        memcmp( oid, MBEDTLS_OID_PKCS9_EMAIL, oid_len ) == 0 )
     {
-        ASN1_CHK_ADD( len, asn1_write_ia5_string( p, start,
+        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_ia5_string( p, start,
                                                   (const char *) name,
                                                   name_len ) );
     }
     else
     {
-        ASN1_CHK_ADD( len, asn1_write_printable_string( p, start,
+        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_printable_string( p, start,
                                                         (const char *) name,
                                                         name_len ) );
     }
 
     // Write OID
     //
-    ASN1_CHK_ADD( len, asn1_write_oid( p, start, oid, oid_len ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid, oid_len ) );
 
-    ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
-    ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_CONSTRUCTED |
-                                                 ASN1_SEQUENCE ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
+                                                 MBEDTLS_ASN1_SEQUENCE ) );
 
-    ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
-    ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_CONSTRUCTED |
-                                                 ASN1_SET ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
+                                                 MBEDTLS_ASN1_SET ) );
 
     return( (int) len );
 }
 
-int x509_write_names( unsigned char **p, unsigned char *start,
-                      asn1_named_data *first )
+int mbedtls_x509_write_names( unsigned char **p, unsigned char *start,
+                      mbedtls_asn1_named_data *first )
 {
     int ret;
     size_t len = 0;
-    asn1_named_data *cur = first;
+    mbedtls_asn1_named_data *cur = first;
 
     while( cur != NULL )
     {
-        ASN1_CHK_ADD( len, x509_write_name( p, start, (char *) cur->oid.p,
+        MBEDTLS_ASN1_CHK_ADD( len, x509_write_name( p, start, (char *) cur->oid.p,
                                             cur->oid.len,
                                             cur->val.p, cur->val.len ) );
         cur = cur->next;
     }
 
-    ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
-    ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_CONSTRUCTED |
-                                                 ASN1_SEQUENCE ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
+                                                 MBEDTLS_ASN1_SEQUENCE ) );
 
     return( (int) len );
 }
 
-int x509_write_sig( unsigned char **p, unsigned char *start,
+int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start,
                     const char *oid, size_t oid_len,
                     unsigned char *sig, size_t size )
 {
@@ -266,7 +266,7 @@
     size_t len = 0;
 
     if( *p - start < (int) size + 1 )
-        return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
+        return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
 
     len = size;
     (*p) -= len;
@@ -275,41 +275,41 @@
     *--(*p) = 0;
     len += 1;
 
-    ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
-    ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_BIT_STRING ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_BIT_STRING ) );
 
     // Write OID
     //
-    ASN1_CHK_ADD( len, asn1_write_algorithm_identifier( p, start, oid,
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( p, start, oid,
                                                         oid_len, 0 ) );
 
     return( (int) len );
 }
 
 static int x509_write_extension( unsigned char **p, unsigned char *start,
-                                 asn1_named_data *ext )
+                                 mbedtls_asn1_named_data *ext )
 {
     int ret;
     size_t len = 0;
 
-    ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start, ext->val.p + 1,
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->val.p + 1,
                                               ext->val.len - 1 ) );
-    ASN1_CHK_ADD( len, asn1_write_len( p, start, ext->val.len - 1 ) );
-    ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_OCTET_STRING ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->val.len - 1 ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OCTET_STRING ) );
 
     if( ext->val.p[0] != 0 )
     {
-        ASN1_CHK_ADD( len, asn1_write_bool( p, start, 1 ) );
+        MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_bool( p, start, 1 ) );
     }
 
-    ASN1_CHK_ADD( len, asn1_write_raw_buffer( p, start, ext->oid.p,
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->oid.p,
                                               ext->oid.len ) );
-    ASN1_CHK_ADD( len, asn1_write_len( p, start, ext->oid.len ) );
-    ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_OID ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->oid.len ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OID ) );
 
-    ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
-    ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_CONSTRUCTED |
-                                                 ASN1_SEQUENCE ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
+    MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
+                                                 MBEDTLS_ASN1_SEQUENCE ) );
 
     return( (int) len );
 }
@@ -324,20 +324,20 @@
  *                 -- by extnID
  *     }
  */
-int x509_write_extensions( unsigned char **p, unsigned char *start,
-                           asn1_named_data *first )
+int mbedtls_x509_write_extensions( unsigned char **p, unsigned char *start,
+                           mbedtls_asn1_named_data *first )
 {
     int ret;
     size_t len = 0;
-    asn1_named_data *cur_ext = first;
+    mbedtls_asn1_named_data *cur_ext = first;
 
     while( cur_ext != NULL )
     {
-        ASN1_CHK_ADD( len, x509_write_extension( p, start, cur_ext ) );
+        MBEDTLS_ASN1_CHK_ADD( len, x509_write_extension( p, start, cur_ext ) );
         cur_ext = cur_ext->next;
     }
 
     return( (int) len );
 }
 
-#endif /* POLARSSL_X509_CREATE_C */
+#endif /* MBEDTLS_X509_CREATE_C */