diff --git a/programs/pkey/gen_key.c b/programs/pkey/gen_key.c
index c440932..ac6ed94 100644
--- a/programs/pkey/gen_key.c
+++ b/programs/pkey/gen_key.c
@@ -44,8 +44,8 @@
 
 #define DEV_RANDOM_THRESHOLD        32
 
-int dev_random_entropy_poll( void *data, unsigned char *output,
-                             size_t len, size_t *olen )
+int dev_random_entropy_poll(void *data, unsigned char *output,
+                            size_t len, size_t *olen)
 {
     FILE *file;
     size_t ret, left = len;
@@ -54,28 +54,27 @@
 
     *olen = 0;
 
-    file = fopen( "/dev/random", "rb" );
-    if( file == NULL )
-        return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
+    file = fopen("/dev/random", "rb");
+    if (file == NULL) {
+        return MBEDTLS_ERR_ENTROPY_SOURCE_FAILED;
+    }
 
-    while( left > 0 )
-    {
+    while (left > 0) {
         /* /dev/random can return much less than requested. If so, try again */
-        ret = fread( p, 1, left, file );
-        if( ret == 0 && ferror( file ) )
-        {
-            fclose( file );
-            return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
+        ret = fread(p, 1, left, file);
+        if (ret == 0 && ferror(file)) {
+            fclose(file);
+            return MBEDTLS_ERR_ENTROPY_SOURCE_FAILED;
         }
 
         p += ret;
         left -= ret;
-        sleep( 1 );
+        sleep(1);
     }
-    fclose( file );
+    fclose(file);
     *olen = len;
 
-    return( 0 );
+    return 0;
 }
 #endif /* !_WIN32 */
 #endif
@@ -116,13 +115,13 @@
 #if !defined(MBEDTLS_PK_WRITE_C) || !defined(MBEDTLS_PEM_WRITE_C) || \
     !defined(MBEDTLS_FS_IO) || !defined(MBEDTLS_ENTROPY_C) || \
     !defined(MBEDTLS_CTR_DRBG_C)
-int main( void )
+int main(void)
 {
-    mbedtls_printf( "MBEDTLS_PK_WRITE_C and/or MBEDTLS_FS_IO and/or "
-            "MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C and/or "
-            "MBEDTLS_PEM_WRITE_C"
-            "not defined.\n" );
-    mbedtls_exit( 0 );
+    mbedtls_printf("MBEDTLS_PK_WRITE_C and/or MBEDTLS_FS_IO and/or "
+                   "MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C and/or "
+                   "MBEDTLS_PEM_WRITE_C"
+                   "not defined.\n");
+    mbedtls_exit(0);
 }
 #else
 
@@ -130,8 +129,7 @@
 /*
  * global options
  */
-struct options
-{
+struct options {
     int type;                   /* the type of key to generate          */
     int rsa_keysize;            /* length of key in bits                */
     int ec_curve;               /* curve identifier for EC keys         */
@@ -140,7 +138,7 @@
     int use_dev_random;         /* use /dev/random as entropy source    */
 } opt;
 
-static int write_private_key( mbedtls_pk_context *key, const char *output_file )
+static int write_private_key(mbedtls_pk_context *key, const char *output_file)
 {
     int ret;
     FILE *f;
@@ -149,37 +147,36 @@
     size_t len = 0;
 
     memset(output_buf, 0, 16000);
-    if( opt.format == FORMAT_PEM )
-    {
-        if( ( ret = mbedtls_pk_write_key_pem( key, output_buf, 16000 ) ) != 0 )
-            return( ret );
+    if (opt.format == FORMAT_PEM) {
+        if ((ret = mbedtls_pk_write_key_pem(key, output_buf, 16000)) != 0) {
+            return ret;
+        }
 
-        len = strlen( (char *) output_buf );
-    }
-    else
-    {
-        if( ( ret = mbedtls_pk_write_key_der( key, output_buf, 16000 ) ) < 0 )
-            return( ret );
+        len = strlen((char *) output_buf);
+    } else {
+        if ((ret = mbedtls_pk_write_key_der(key, output_buf, 16000)) < 0) {
+            return ret;
+        }
 
         len = ret;
         c = output_buf + sizeof(output_buf) - len;
     }
 
-    if( ( f = fopen( output_file, "wb" ) ) == NULL )
-        return( -1 );
-
-    if( fwrite( c, 1, len, f ) != len )
-    {
-        fclose( f );
-        return( -1 );
+    if ((f = fopen(output_file, "wb")) == NULL) {
+        return -1;
     }
 
-    fclose( f );
+    if (fwrite(c, 1, len, f) != len) {
+        fclose(f);
+        return -1;
+    }
 
-    return( 0 );
+    fclose(f);
+
+    return 0;
 }
 
-int main( int argc, char *argv[] )
+int main(int argc, char *argv[])
 {
     int ret = 1;
     int exit_code = MBEDTLS_EXIT_FAILURE;
@@ -199,24 +196,24 @@
      * Set to sane values
      */
 
-    mbedtls_mpi_init( &N ); mbedtls_mpi_init( &P ); mbedtls_mpi_init( &Q );
-    mbedtls_mpi_init( &D ); mbedtls_mpi_init( &E ); mbedtls_mpi_init( &DP );
-    mbedtls_mpi_init( &DQ ); mbedtls_mpi_init( &QP );
+    mbedtls_mpi_init(&N); mbedtls_mpi_init(&P); mbedtls_mpi_init(&Q);
+    mbedtls_mpi_init(&D); mbedtls_mpi_init(&E); mbedtls_mpi_init(&DP);
+    mbedtls_mpi_init(&DQ); mbedtls_mpi_init(&QP);
 
-    mbedtls_pk_init( &key );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-    memset( buf, 0, sizeof( buf ) );
+    mbedtls_pk_init(&key);
+    mbedtls_ctr_drbg_init(&ctr_drbg);
+    memset(buf, 0, sizeof(buf));
 
-    if( argc == 0 )
-    {
-    usage:
-        mbedtls_printf( USAGE );
+    if (argc == 0) {
+usage:
+        mbedtls_printf(USAGE);
 #if defined(MBEDTLS_ECP_C)
-        mbedtls_printf( " available ec_curve values:\n" );
+        mbedtls_printf(" available ec_curve values:\n");
         curve_info = mbedtls_ecp_curve_list();
-        mbedtls_printf( "    %s (default)\n", curve_info->name );
-        while( ( ++curve_info )->name != NULL )
-            mbedtls_printf( "    %s\n", curve_info->name );
+        mbedtls_printf("    %s (default)\n", curve_info->name);
+        while ((++curve_info)->name != NULL) {
+            mbedtls_printf("    %s\n", curve_info->name);
+        }
 #endif /* MBEDTLS_ECP_C */
         goto exit;
     }
@@ -228,214 +225,199 @@
     opt.format              = DFL_FORMAT;
     opt.use_dev_random      = DFL_USE_DEV_RANDOM;
 
-    for( i = 1; i < argc; i++ )
-    {
+    for (i = 1; i < argc; i++) {
         p = argv[i];
-        if( ( q = strchr( p, '=' ) ) == NULL )
+        if ((q = strchr(p, '=')) == NULL) {
             goto usage;
+        }
         *q++ = '\0';
 
-        if( strcmp( p, "type" ) == 0 )
-        {
-            if( strcmp( q, "rsa" ) == 0 )
+        if (strcmp(p, "type") == 0) {
+            if (strcmp(q, "rsa") == 0) {
                 opt.type = MBEDTLS_PK_RSA;
-            else if( strcmp( q, "ec" ) == 0 )
+            } else if (strcmp(q, "ec") == 0) {
                 opt.type = MBEDTLS_PK_ECKEY;
-            else
+            } else {
                 goto usage;
-        }
-        else if( strcmp( p, "format" ) == 0 )
-        {
-            if( strcmp( q, "pem" ) == 0 )
+            }
+        } else if (strcmp(p, "format") == 0) {
+            if (strcmp(q, "pem") == 0) {
                 opt.format = FORMAT_PEM;
-            else if( strcmp( q, "der" ) == 0 )
+            } else if (strcmp(q, "der") == 0) {
                 opt.format = FORMAT_DER;
-            else
+            } else {
                 goto usage;
-        }
-        else if( strcmp( p, "rsa_keysize" ) == 0 )
-        {
-            opt.rsa_keysize = atoi( q );
-            if( opt.rsa_keysize < 1024 ||
-                opt.rsa_keysize > MBEDTLS_MPI_MAX_BITS )
+            }
+        } else if (strcmp(p, "rsa_keysize") == 0) {
+            opt.rsa_keysize = atoi(q);
+            if (opt.rsa_keysize < 1024 ||
+                opt.rsa_keysize > MBEDTLS_MPI_MAX_BITS) {
                 goto usage;
+            }
         }
 #if defined(MBEDTLS_ECP_C)
-        else if( strcmp( p, "ec_curve" ) == 0 )
-        {
-            if( ( curve_info = mbedtls_ecp_curve_info_from_name( q ) ) == NULL )
+        else if (strcmp(p, "ec_curve") == 0) {
+            if ((curve_info = mbedtls_ecp_curve_info_from_name(q)) == NULL) {
                 goto usage;
+            }
             opt.ec_curve = curve_info->grp_id;
         }
 #endif
-        else if( strcmp( p, "filename" ) == 0 )
+        else if (strcmp(p, "filename") == 0) {
             opt.filename = q;
-        else if( strcmp( p, "use_dev_random" ) == 0 )
-        {
-            opt.use_dev_random = atoi( q );
-            if( opt.use_dev_random < 0 || opt.use_dev_random > 1 )
+        } else if (strcmp(p, "use_dev_random") == 0) {
+            opt.use_dev_random = atoi(q);
+            if (opt.use_dev_random < 0 || opt.use_dev_random > 1) {
                 goto usage;
-        }
-        else
+            }
+        } else {
             goto usage;
+        }
     }
 
-    mbedtls_printf( "\n  . Seeding the random number generator..." );
-    fflush( stdout );
+    mbedtls_printf("\n  . Seeding the random number generator...");
+    fflush(stdout);
 
-    mbedtls_entropy_init( &entropy );
+    mbedtls_entropy_init(&entropy);
 #if !defined(_WIN32) && defined(MBEDTLS_FS_IO)
-    if( opt.use_dev_random )
-    {
-        if( ( ret = mbedtls_entropy_add_source( &entropy, dev_random_entropy_poll,
-                                        NULL, DEV_RANDOM_THRESHOLD,
-                                        MBEDTLS_ENTROPY_SOURCE_STRONG ) ) != 0 )
-        {
-            mbedtls_printf( " failed\n  ! mbedtls_entropy_add_source returned -0x%04x\n", (unsigned int) -ret );
+    if (opt.use_dev_random) {
+        if ((ret = mbedtls_entropy_add_source(&entropy, dev_random_entropy_poll,
+                                              NULL, DEV_RANDOM_THRESHOLD,
+                                              MBEDTLS_ENTROPY_SOURCE_STRONG)) != 0) {
+            mbedtls_printf(" failed\n  ! mbedtls_entropy_add_source returned -0x%04x\n",
+                           (unsigned int) -ret);
             goto exit;
         }
 
-        mbedtls_printf("\n    Using /dev/random, so can take a long time! " );
-        fflush( stdout );
+        mbedtls_printf("\n    Using /dev/random, so can take a long time! ");
+        fflush(stdout);
     }
 #endif /* !_WIN32 && MBEDTLS_FS_IO */
 
-    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;
     }
 
     /*
      * 1.1. Generate the key
      */
-    mbedtls_printf( "\n  . Generating the private key ..." );
-    fflush( stdout );
+    mbedtls_printf("\n  . Generating the private key ...");
+    fflush(stdout);
 
-    if( ( ret = mbedtls_pk_setup( &key,
-            mbedtls_pk_info_from_type( (mbedtls_pk_type_t) opt.type ) ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  !  mbedtls_pk_setup returned -0x%04x", (unsigned int) -ret );
+    if ((ret = mbedtls_pk_setup(&key,
+                                mbedtls_pk_info_from_type((mbedtls_pk_type_t) opt.type))) != 0) {
+        mbedtls_printf(" failed\n  !  mbedtls_pk_setup returned -0x%04x", (unsigned int) -ret);
         goto exit;
     }
 
 #if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_GENPRIME)
-    if( opt.type == MBEDTLS_PK_RSA )
-    {
-        ret = mbedtls_rsa_gen_key( mbedtls_pk_rsa( key ), mbedtls_ctr_drbg_random, &ctr_drbg,
-                                   opt.rsa_keysize, 65537 );
-        if( ret != 0 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_rsa_gen_key returned -0x%04x", (unsigned int) -ret );
+    if (opt.type == MBEDTLS_PK_RSA) {
+        ret = mbedtls_rsa_gen_key(mbedtls_pk_rsa(key), mbedtls_ctr_drbg_random, &ctr_drbg,
+                                  opt.rsa_keysize, 65537);
+        if (ret != 0) {
+            mbedtls_printf(" failed\n  !  mbedtls_rsa_gen_key returned -0x%04x",
+                           (unsigned int) -ret);
             goto exit;
         }
-    }
-    else
+    } else
 #endif /* MBEDTLS_RSA_C */
 #if defined(MBEDTLS_ECP_C)
-    if( opt.type == MBEDTLS_PK_ECKEY )
-    {
-        ret = mbedtls_ecp_gen_key( (mbedtls_ecp_group_id) opt.ec_curve,
-                                   mbedtls_pk_ec( key ),
-                                   mbedtls_ctr_drbg_random, &ctr_drbg );
-        if( ret != 0 )
-        {
-            mbedtls_printf( " failed\n  !  mbedtls_ecp_gen_key returned -0x%04x", (unsigned int) -ret );
+    if (opt.type == MBEDTLS_PK_ECKEY) {
+        ret = mbedtls_ecp_gen_key((mbedtls_ecp_group_id) opt.ec_curve,
+                                  mbedtls_pk_ec(key),
+                                  mbedtls_ctr_drbg_random, &ctr_drbg);
+        if (ret != 0) {
+            mbedtls_printf(" failed\n  !  mbedtls_ecp_gen_key returned -0x%04x",
+                           (unsigned int) -ret);
             goto exit;
         }
-    }
-    else
+    } else
 #endif /* MBEDTLS_ECP_C */
     {
-        mbedtls_printf( " failed\n  !  key type not supported\n" );
+        mbedtls_printf(" failed\n  !  key type not supported\n");
         goto exit;
     }
 
     /*
      * 1.2 Print the key
      */
-    mbedtls_printf( " ok\n  . Key information:\n" );
+    mbedtls_printf(" ok\n  . Key information:\n");
 
 #if defined(MBEDTLS_RSA_C)
-    if( mbedtls_pk_get_type( &key ) == MBEDTLS_PK_RSA )
-    {
-        mbedtls_rsa_context *rsa = mbedtls_pk_rsa( key );
+    if (mbedtls_pk_get_type(&key) == MBEDTLS_PK_RSA) {
+        mbedtls_rsa_context *rsa = mbedtls_pk_rsa(key);
 
-        if( ( ret = mbedtls_rsa_export    ( rsa, &N, &P, &Q, &D, &E ) ) != 0 ||
-            ( ret = mbedtls_rsa_export_crt( rsa, &DP, &DQ, &QP ) )      != 0 )
-        {
-            mbedtls_printf( " failed\n  ! could not export RSA parameters\n\n" );
+        if ((ret = mbedtls_rsa_export(rsa, &N, &P, &Q, &D, &E)) != 0 ||
+            (ret = mbedtls_rsa_export_crt(rsa, &DP, &DQ, &QP))      != 0) {
+            mbedtls_printf(" failed\n  ! could not export RSA parameters\n\n");
             goto exit;
         }
 
-        mbedtls_mpi_write_file( "N:  ",  &N,  16, NULL );
-        mbedtls_mpi_write_file( "E:  ",  &E,  16, NULL );
-        mbedtls_mpi_write_file( "D:  ",  &D,  16, NULL );
-        mbedtls_mpi_write_file( "P:  ",  &P,  16, NULL );
-        mbedtls_mpi_write_file( "Q:  ",  &Q,  16, NULL );
-        mbedtls_mpi_write_file( "DP: ",  &DP, 16, NULL );
-        mbedtls_mpi_write_file( "DQ:  ", &DQ, 16, NULL );
-        mbedtls_mpi_write_file( "QP:  ", &QP, 16, NULL );
-    }
-    else
+        mbedtls_mpi_write_file("N:  ",  &N,  16, NULL);
+        mbedtls_mpi_write_file("E:  ",  &E,  16, NULL);
+        mbedtls_mpi_write_file("D:  ",  &D,  16, NULL);
+        mbedtls_mpi_write_file("P:  ",  &P,  16, NULL);
+        mbedtls_mpi_write_file("Q:  ",  &Q,  16, NULL);
+        mbedtls_mpi_write_file("DP: ",  &DP, 16, NULL);
+        mbedtls_mpi_write_file("DQ:  ", &DQ, 16, NULL);
+        mbedtls_mpi_write_file("QP:  ", &QP, 16, NULL);
+    } else
 #endif
 #if defined(MBEDTLS_ECP_C)
-    if( mbedtls_pk_get_type( &key ) == MBEDTLS_PK_ECKEY )
-    {
-        mbedtls_ecp_keypair *ecp = mbedtls_pk_ec( key );
-        mbedtls_printf( "curve: %s\n",
-                mbedtls_ecp_curve_info_from_grp_id( ecp->grp.id )->name );
-        mbedtls_mpi_write_file( "X_Q:   ", &ecp->Q.X, 16, NULL );
-        mbedtls_mpi_write_file( "Y_Q:   ", &ecp->Q.Y, 16, NULL );
-        mbedtls_mpi_write_file( "D:     ", &ecp->d  , 16, NULL );
-    }
-    else
+    if (mbedtls_pk_get_type(&key) == MBEDTLS_PK_ECKEY) {
+        mbedtls_ecp_keypair *ecp = mbedtls_pk_ec(key);
+        mbedtls_printf("curve: %s\n",
+                       mbedtls_ecp_curve_info_from_grp_id(ecp->grp.id)->name);
+        mbedtls_mpi_write_file("X_Q:   ", &ecp->Q.X, 16, NULL);
+        mbedtls_mpi_write_file("Y_Q:   ", &ecp->Q.Y, 16, NULL);
+        mbedtls_mpi_write_file("D:     ", &ecp->d, 16, NULL);
+    } else
 #endif
-        mbedtls_printf("  ! key type not supported\n");
+    mbedtls_printf("  ! key type not supported\n");
 
     /*
      * 1.3 Export key
      */
-    mbedtls_printf( "  . Writing key to file..." );
+    mbedtls_printf("  . Writing key to file...");
 
-    if( ( ret = write_private_key( &key, opt.filename ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n" );
+    if ((ret = write_private_key(&key, opt.filename)) != 0) {
+        mbedtls_printf(" failed\n");
         goto exit;
     }
 
-    mbedtls_printf( " ok\n" );
+    mbedtls_printf(" ok\n");
 
     exit_code = MBEDTLS_EXIT_SUCCESS;
 
 exit:
 
-    if( exit_code != MBEDTLS_EXIT_SUCCESS )
-    {
+    if (exit_code != MBEDTLS_EXIT_SUCCESS) {
 #ifdef MBEDTLS_ERROR_C
-        mbedtls_strerror( ret, buf, sizeof( buf ) );
-        mbedtls_printf( " - %s\n", buf );
+        mbedtls_strerror(ret, buf, sizeof(buf));
+        mbedtls_printf(" - %s\n", buf);
 #else
         mbedtls_printf("\n");
 #endif
     }
 
-    mbedtls_mpi_free( &N ); mbedtls_mpi_free( &P ); mbedtls_mpi_free( &Q );
-    mbedtls_mpi_free( &D ); mbedtls_mpi_free( &E ); mbedtls_mpi_free( &DP );
-    mbedtls_mpi_free( &DQ ); mbedtls_mpi_free( &QP );
+    mbedtls_mpi_free(&N); mbedtls_mpi_free(&P); mbedtls_mpi_free(&Q);
+    mbedtls_mpi_free(&D); mbedtls_mpi_free(&E); mbedtls_mpi_free(&DP);
+    mbedtls_mpi_free(&DQ); mbedtls_mpi_free(&QP);
 
-    mbedtls_pk_free( &key );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
+    mbedtls_pk_free(&key);
+    mbedtls_ctr_drbg_free(&ctr_drbg);
+    mbedtls_entropy_free(&entropy);
 
 #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_PK_WRITE_C && MBEDTLS_PEM_WRITE_C && MBEDTLS_FS_IO &&
         * MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C */