diff --git a/programs/pkey/dh_server.c b/programs/pkey/dh_server.c
index e824902..c625d02 100644
--- a/programs/pkey/dh_server.c
+++ b/programs/pkey/dh_server.c
@@ -134,7 +134,7 @@
     }
 
     rsa.len = ( mpi_msb( &rsa.N ) + 7 ) >> 3;
-    
+
     fclose( f );
 
     /*
diff --git a/programs/pkey/key_app.c b/programs/pkey/key_app.c
index 2ebeb41..98f36db 100644
--- a/programs/pkey/key_app.c
+++ b/programs/pkey/key_app.c
@@ -51,7 +51,7 @@
 #define DFL_PASSWORD            ""
 #define DFL_PASSWORD_FILE       ""
 #define DFL_DEBUG_LEVEL         0
-    
+
 #define USAGE \
     "\n usage: key_app param=<>...\n"                   \
     "\n acceptable parameters:\n"                       \
diff --git a/programs/pkey/key_app_writer.c b/programs/pkey/key_app_writer.c
index ddd5e19..09233ff 100644
--- a/programs/pkey/key_app_writer.c
+++ b/programs/pkey/key_app_writer.c
@@ -84,7 +84,7 @@
     "    output_mode=private|public default: none\n"    \
     USAGE_OUT                                           \
     "\n"
- 
+
 #if !defined(POLARSSL_PK_WRITE_C) || !defined(POLARSSL_FS_IO)
 int main( void )
 {
diff --git a/programs/pkey/rsa_encrypt.c b/programs/pkey/rsa_encrypt.c
index bbf7678..e73ad2f 100644
--- a/programs/pkey/rsa_encrypt.c
+++ b/programs/pkey/rsa_encrypt.c
@@ -105,7 +105,7 @@
     }
 
     rsa_init( &rsa, RSA_PKCS_V15, 0 );
-    
+
     if( ( ret = mpi_read_file( &rsa.N, 16, f ) ) != 0 ||
         ( ret = mpi_read_file( &rsa.E, 16, f ) ) != 0 )
     {
diff --git a/programs/pkey/rsa_genkey.c b/programs/pkey/rsa_genkey.c
index f1be536..0314d39 100644
--- a/programs/pkey/rsa_genkey.c
+++ b/programs/pkey/rsa_genkey.c
@@ -41,7 +41,7 @@
 #include "polarssl/bignum.h"
 #include "polarssl/x509.h"
 #include "polarssl/rsa.h"
-    
+
 #include <stdio.h>
 #include <string.h>
 #endif
@@ -86,7 +86,7 @@
     fflush( stdout );
 
     rsa_init( &rsa, RSA_PKCS_V15, 0 );
-    
+
     if( ( ret = rsa_gen_key( &rsa, ctr_drbg_random, &ctr_drbg, KEY_SIZE,
                              EXPONENT ) ) != 0 )
     {
diff --git a/programs/pkey/rsa_sign.c b/programs/pkey/rsa_sign.c
index f033eab..277034d 100644
--- a/programs/pkey/rsa_sign.c
+++ b/programs/pkey/rsa_sign.c
@@ -86,7 +86,7 @@
     }
 
     rsa_init( &rsa, RSA_PKCS_V15, 0 );
-    
+
     if( ( ret = mpi_read_file( &rsa.N , 16, f ) ) != 0 ||
         ( ret = mpi_read_file( &rsa.E , 16, f ) ) != 0 ||
         ( ret = mpi_read_file( &rsa.D , 16, f ) ) != 0 ||