diff --git a/library/rsa.c b/library/rsa.c
index f4ff237..3a1ea35 100644
--- a/library/rsa.c
+++ b/library/rsa.c
@@ -1,7 +1,7 @@
 /*
  *  The RSA public-key cryptosystem
  *
- *  Copyright (C) 2006-2011, Brainspark B.V.
+ *  Copyright (C) 2006-2014, Brainspark B.V.
  *
  *  This file is part of PolarSSL (http://www.polarssl.org)
  *  Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
@@ -43,6 +43,12 @@
 #include <stdlib.h>
 #include <stdio.h>
 
+#if defined(POLARSSL_PLATFORM_C)
+#include "polarssl/platform.h"
+#else
+#define polarssl_printf printf
+#endif
+
 /*
  * Initialize an RSA context
  */
@@ -1495,19 +1501,19 @@
     mpi_read_string( &rsa.QP, 16, RSA_QP );
 
     if( verbose != 0 )
-        printf( "  RSA key validation: " );
+        polarssl_printf( "  RSA key validation: " );
 
     if( rsa_check_pubkey(  &rsa ) != 0 ||
         rsa_check_privkey( &rsa ) != 0 )
     {
         if( verbose != 0 )
-            printf( "failed\n" );
+            polarssl_printf( "failed\n" );
 
         return( 1 );
     }
 
     if( verbose != 0 )
-        printf( "passed\n  PKCS#1 encryption : " );
+        polarssl_printf( "passed\n  PKCS#1 encryption : " );
 
     memcpy( rsa_plaintext, RSA_PT, PT_LEN );
 
@@ -1515,20 +1521,20 @@
                            rsa_plaintext, rsa_ciphertext ) != 0 )
     {
         if( verbose != 0 )
-            printf( "failed\n" );
+            polarssl_printf( "failed\n" );
 
         return( 1 );
     }
 
     if( verbose != 0 )
-        printf( "passed\n  PKCS#1 decryption : " );
+        polarssl_printf( "passed\n  PKCS#1 decryption : " );
 
     if( rsa_pkcs1_decrypt( &rsa, myrand, NULL, RSA_PRIVATE, &len,
                            rsa_ciphertext, rsa_decrypted,
                            sizeof(rsa_decrypted) ) != 0 )
     {
         if( verbose != 0 )
-            printf( "failed\n" );
+            polarssl_printf( "failed\n" );
 
         return( 1 );
     }
@@ -1536,14 +1542,14 @@
     if( memcmp( rsa_decrypted, rsa_plaintext, len ) != 0 )
     {
         if( verbose != 0 )
-            printf( "failed\n" );
+            polarssl_printf( "failed\n" );
 
         return( 1 );
     }
 
 #if defined(POLARSSL_SHA1_C)
     if( verbose != 0 )
-        printf( "passed\n  PKCS#1 data sign  : " );
+        polarssl_printf( "passed\n  PKCS#1 data sign  : " );
 
     sha1( rsa_plaintext, PT_LEN, sha1sum );
 
@@ -1551,25 +1557,25 @@
                         sha1sum, rsa_ciphertext ) != 0 )
     {
         if( verbose != 0 )
-            printf( "failed\n" );
+            polarssl_printf( "failed\n" );
 
         return( 1 );
     }
 
     if( verbose != 0 )
-        printf( "passed\n  PKCS#1 sig. verify: " );
+        polarssl_printf( "passed\n  PKCS#1 sig. verify: " );
 
     if( rsa_pkcs1_verify( &rsa, NULL, NULL, RSA_PUBLIC, POLARSSL_MD_SHA1, 0,
                           sha1sum, rsa_ciphertext ) != 0 )
     {
         if( verbose != 0 )
-            printf( "failed\n" );
+            polarssl_printf( "failed\n" );
 
         return( 1 );
     }
 
     if( verbose != 0 )
-        printf( "passed\n\n" );
+        polarssl_printf( "passed\n\n" );
 #endif /* POLARSSL_SHA1_C */
 
     rsa_free( &rsa );