diff --git a/programs/pkey/pk_decrypt.c b/programs/pkey/pk_decrypt.c
index 0b1c417..1dff75c 100644
--- a/programs/pkey/pk_decrypt.c
+++ b/programs/pkey/pk_decrypt.c
@@ -40,17 +40,17 @@
 #if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_PK_PARSE_C) ||  \
     !defined(MBEDTLS_FS_IO) || !defined(MBEDTLS_ENTROPY_C) || \
     !defined(MBEDTLS_CTR_DRBG_C)
-int main( void )
+int main(void)
 {
     mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_PK_PARSE_C and/or "
-           "MBEDTLS_FS_IO and/or MBEDTLS_ENTROPY_C and/or "
-           "MBEDTLS_CTR_DRBG_C not defined.\n");
-    mbedtls_exit( 0 );
+                   "MBEDTLS_FS_IO and/or MBEDTLS_ENTROPY_C 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;
@@ -65,103 +65,97 @@
     const char *pers = "mbedtls_pk_decrypt";
     ((void) argv);
 
-    mbedtls_pk_init( &pk );
-    mbedtls_entropy_init( &entropy );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
+    mbedtls_pk_init(&pk);
+    mbedtls_entropy_init(&entropy);
+    mbedtls_ctr_drbg_init(&ctr_drbg);
 
-    memset(result, 0, sizeof( result ) );
+    memset(result, 0, sizeof(result));
 
-    if( argc != 2 )
-    {
-        mbedtls_printf( "usage: mbedtls_pk_decrypt <key_file>\n" );
+    if (argc != 2) {
+        mbedtls_printf("usage: mbedtls_pk_decrypt <key_file>\n");
 
 #if defined(_WIN32)
-        mbedtls_printf( "\n" );
+        mbedtls_printf("\n");
 #endif
 
         goto exit;
     }
 
-    mbedtls_printf( "\n  . Seeding the random number generator..." );
-    fflush( stdout );
+    mbedtls_printf("\n  . Seeding the random number generator...");
+    fflush(stdout);
 
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func,
-                                       &entropy, (const unsigned char *) pers,
-                                       strlen( pers ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ctr_drbg_seed returned -0x%04x\n",
-                        (unsigned int) -ret );
+    if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func,
+                                     &entropy, (const unsigned char *) pers,
+                                     strlen(pers))) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ctr_drbg_seed returned -0x%04x\n",
+                       (unsigned int) -ret);
         goto exit;
     }
 
-    mbedtls_printf( "\n  . Reading private key from '%s'", argv[1] );
-    fflush( stdout );
+    mbedtls_printf("\n  . Reading private key from '%s'", argv[1]);
+    fflush(stdout);
 
-    if( ( ret = mbedtls_pk_parse_keyfile( &pk, argv[1], "" ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_pk_parse_keyfile returned -0x%04x\n", (unsigned int) -ret );
+    if ((ret = mbedtls_pk_parse_keyfile(&pk, argv[1], "")) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_pk_parse_keyfile returned -0x%04x\n",
+                       (unsigned int) -ret);
         goto exit;
     }
 
     /*
      * Extract the RSA encrypted value from the text file
      */
-    if( ( f = fopen( "result-enc.txt", "rb" ) ) == NULL )
-    {
-        mbedtls_printf( "\n  ! Could not open %s\n\n", "result-enc.txt" );
+    if ((f = fopen("result-enc.txt", "rb")) == NULL) {
+        mbedtls_printf("\n  ! Could not open %s\n\n", "result-enc.txt");
         ret = 1;
         goto exit;
     }
 
     i = 0;
-    while( fscanf( f, "%02X", (unsigned int*) &c ) > 0 &&
-           i < (int) sizeof( buf ) )
-    {
+    while (fscanf(f, "%02X", (unsigned int *) &c) > 0 &&
+           i < (int) sizeof(buf)) {
         buf[i++] = (unsigned char) c;
     }
 
-    fclose( f );
+    fclose(f);
 
     /*
      * Decrypt the encrypted RSA data and print the result.
      */
-    mbedtls_printf( "\n  . Decrypting the encrypted data" );
-    fflush( stdout );
+    mbedtls_printf("\n  . Decrypting the encrypted data");
+    fflush(stdout);
 
-    if( ( ret = mbedtls_pk_decrypt( &pk, buf, i, result, &olen, sizeof(result),
-                            mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_pk_decrypt returned -0x%04x\n",
-                        (unsigned int) -ret );
+    if ((ret = mbedtls_pk_decrypt(&pk, buf, i, result, &olen, sizeof(result),
+                                  mbedtls_ctr_drbg_random, &ctr_drbg)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_pk_decrypt returned -0x%04x\n",
+                       (unsigned int) -ret);
         goto exit;
     }
 
-    mbedtls_printf( "\n  . OK\n\n" );
+    mbedtls_printf("\n  . OK\n\n");
 
-    mbedtls_printf( "The decrypted result is: '%s'\n\n", result );
+    mbedtls_printf("The decrypted result is: '%s'\n\n", result);
 
     exit_code = MBEDTLS_EXIT_SUCCESS;
 
 exit:
 
-    mbedtls_pk_free( &pk );
-    mbedtls_entropy_free( &entropy );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
+    mbedtls_pk_free(&pk);
+    mbedtls_entropy_free(&entropy);
+    mbedtls_ctr_drbg_free(&ctr_drbg);
 
 #if defined(MBEDTLS_ERROR_C)
-    if( exit_code != MBEDTLS_EXIT_SUCCESS )
-    {
-        mbedtls_strerror( ret, (char *) buf, sizeof( buf ) );
-        mbedtls_printf( "  !  Last error was: %s\n", buf );
+    if (exit_code != MBEDTLS_EXIT_SUCCESS) {
+        mbedtls_strerror(ret, (char *) buf, sizeof(buf));
+        mbedtls_printf("  !  Last error was: %s\n", buf);
     }
 #endif
 
 #if defined(_WIN32)
-    mbedtls_printf( "  + Press Enter to exit this program.\n" );
-    fflush( stdout ); getchar();
+    mbedtls_printf("  + Press Enter to exit this program.\n");
+    fflush(stdout); getchar();
 #endif
 
-    mbedtls_exit( exit_code );
+    mbedtls_exit(exit_code);
 }
 #endif /* MBEDTLS_BIGNUM_C && MBEDTLS_PK_PARSE_C && MBEDTLS_FS_IO &&
           MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C */