diff --git a/programs/pkey/rsa_encrypt.c b/programs/pkey/rsa_encrypt.c
index 777b22e..2126a9b 100644
--- a/programs/pkey/rsa_encrypt.c
+++ b/programs/pkey/rsa_encrypt.c
@@ -34,17 +34,17 @@
 #if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_RSA_C) ||  \
     !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_FS_IO) || \
     !defined(MBEDTLS_CTR_DRBG_C)
-int main( void )
+int main(void)
 {
     mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_RSA_C and/or "
-           "MBEDTLS_ENTROPY_C and/or MBEDTLS_FS_IO and/or "
-           "MBEDTLS_CTR_DRBG_C not defined.\n");
-    mbedtls_exit( 0 );
+                   "MBEDTLS_ENTROPY_C and/or MBEDTLS_FS_IO and/or "
+                   "MBEDTLS_CTR_DRBG_C not defined.\n");
+    mbedtls_exit(0);
 }
 #else
 
 
-int main( int argc, char *argv[] )
+int main(int argc, char *argv[])
 {
     FILE *f;
     int ret = 1;
@@ -58,111 +58,104 @@
     const char *pers = "rsa_encrypt";
     mbedtls_mpi N, E;
 
-    if( argc != 2 )
-    {
-        mbedtls_printf( "usage: rsa_encrypt <string of max 100 characters>\n" );
+    if (argc != 2) {
+        mbedtls_printf("usage: rsa_encrypt <string of max 100 characters>\n");
 
 #if defined(_WIN32)
-        mbedtls_printf( "\n" );
+        mbedtls_printf("\n");
 #endif
 
-        mbedtls_exit( exit_code );
+        mbedtls_exit(exit_code);
     }
 
-    mbedtls_printf( "\n  . Seeding the random number generator..." );
-    fflush( stdout );
+    mbedtls_printf("\n  . Seeding the random number generator...");
+    fflush(stdout);
 
-    mbedtls_mpi_init( &N ); mbedtls_mpi_init( &E );
-    mbedtls_rsa_init( &rsa );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-    mbedtls_entropy_init( &entropy );
+    mbedtls_mpi_init(&N); mbedtls_mpi_init(&E);
+    mbedtls_rsa_init(&rsa);
+    mbedtls_ctr_drbg_init(&ctr_drbg);
+    mbedtls_entropy_init(&entropy);
 
-    ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func,
-                                 &entropy, (const unsigned char *) pers,
-                                 strlen( pers ) );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ctr_drbg_seed returned %d\n",
-                        ret );
+    ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func,
+                                &entropy, (const unsigned char *) pers,
+                                strlen(pers));
+    if (ret != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ctr_drbg_seed returned %d\n",
+                       ret);
         goto exit;
     }
 
-    mbedtls_printf( "\n  . Reading public key from rsa_pub.txt" );
-    fflush( stdout );
+    mbedtls_printf("\n  . Reading public key from rsa_pub.txt");
+    fflush(stdout);
 
-    if( ( f = fopen( "rsa_pub.txt", "rb" ) ) == NULL )
-    {
-        mbedtls_printf( " failed\n  ! Could not open rsa_pub.txt\n" \
-                "  ! Please run rsa_genkey first\n\n" );
+    if ((f = fopen("rsa_pub.txt", "rb")) == NULL) {
+        mbedtls_printf(" failed\n  ! Could not open rsa_pub.txt\n" \
+                       "  ! Please run rsa_genkey first\n\n");
         goto exit;
     }
 
-    if( ( ret = mbedtls_mpi_read_file( &N, 16, f ) ) != 0 ||
-        ( ret = mbedtls_mpi_read_file( &E, 16, f ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_mpi_read_file returned %d\n\n",
-                        ret );
-        fclose( f );
+    if ((ret = mbedtls_mpi_read_file(&N, 16, f)) != 0 ||
+        (ret = mbedtls_mpi_read_file(&E, 16, f)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_mpi_read_file returned %d\n\n",
+                       ret);
+        fclose(f);
         goto exit;
     }
-    fclose( f );
+    fclose(f);
 
-    if( ( ret = mbedtls_rsa_import( &rsa, &N, NULL, NULL, NULL, &E ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_rsa_import returned %d\n\n",
-                        ret );
+    if ((ret = mbedtls_rsa_import(&rsa, &N, NULL, NULL, NULL, &E)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_rsa_import returned %d\n\n",
+                       ret);
         goto exit;
     }
 
-    if( strlen( argv[1] ) > 100 )
-    {
-        mbedtls_printf( " Input data larger than 100 characters.\n\n" );
+    if (strlen(argv[1]) > 100) {
+        mbedtls_printf(" Input data larger than 100 characters.\n\n");
         goto exit;
     }
 
-    memcpy( input, argv[1], strlen( argv[1] ) );
+    memcpy(input, argv[1], strlen(argv[1]));
 
     /*
      * Calculate the RSA encryption of the hash.
      */
-    mbedtls_printf( "\n  . Generating the RSA encrypted value" );
-    fflush( stdout );
+    mbedtls_printf("\n  . Generating the RSA encrypted value");
+    fflush(stdout);
 
-    ret = mbedtls_rsa_pkcs1_encrypt( &rsa, mbedtls_ctr_drbg_random,
-                                     &ctr_drbg, strlen( argv[1] ), input, buf );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_rsa_pkcs1_encrypt returned %d\n\n",
-                        ret );
+    ret = mbedtls_rsa_pkcs1_encrypt(&rsa, mbedtls_ctr_drbg_random,
+                                    &ctr_drbg, strlen(argv[1]), input, buf);
+    if (ret != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_rsa_pkcs1_encrypt returned %d\n\n",
+                       ret);
         goto exit;
     }
 
     /*
      * Write the signature into result-enc.txt
      */
-    if( ( f = fopen( "result-enc.txt", "wb+" ) ) == NULL )
-    {
-        mbedtls_printf( " failed\n  ! Could not create %s\n\n", "result-enc.txt" );
+    if ((f = fopen("result-enc.txt", "wb+")) == NULL) {
+        mbedtls_printf(" failed\n  ! Could not create %s\n\n", "result-enc.txt");
         goto exit;
     }
 
-    for( i = 0; i < rsa.MBEDTLS_PRIVATE(len); i++ )
-        mbedtls_fprintf( f, "%02X%s", buf[i],
-                 ( i + 1 ) % 16 == 0 ? "\r\n" : " " );
+    for (i = 0; i < rsa.MBEDTLS_PRIVATE(len); i++) {
+        mbedtls_fprintf(f, "%02X%s", buf[i],
+                        (i + 1) % 16 == 0 ? "\r\n" : " ");
+    }
 
-    fclose( f );
+    fclose(f);
 
-    mbedtls_printf( "\n  . Done (created \"%s\")\n\n", "result-enc.txt" );
+    mbedtls_printf("\n  . Done (created \"%s\")\n\n", "result-enc.txt");
 
     exit_code = MBEDTLS_EXIT_SUCCESS;
 
 exit:
-    mbedtls_mpi_free( &N ); mbedtls_mpi_free( &E );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
-    mbedtls_rsa_free( &rsa );
+    mbedtls_mpi_free(&N); mbedtls_mpi_free(&E);
+    mbedtls_ctr_drbg_free(&ctr_drbg);
+    mbedtls_entropy_free(&entropy);
+    mbedtls_rsa_free(&rsa);
 
-    mbedtls_exit( exit_code );
+    mbedtls_exit(exit_code);
 }
 #endif /* MBEDTLS_BIGNUM_C && MBEDTLS_RSA_C && MBEDTLS_ENTROPY_C &&
           MBEDTLS_FS_IO && MBEDTLS_CTR_DRBG_C */