diff --git a/programs/pkey/ecdh_curve25519.c b/programs/pkey/ecdh_curve25519.c
index 69ff897..da28c7d 100644
--- a/programs/pkey/ecdh_curve25519.c
+++ b/programs/pkey/ecdh_curve25519.c
@@ -28,13 +28,13 @@
 #if !defined(MBEDTLS_ECDH_C) || \
     !defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) || \
     !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_CTR_DRBG_C)
-int main( void )
+int main(void)
 {
-    mbedtls_printf( "MBEDTLS_ECDH_C and/or "
-                    "MBEDTLS_ECP_DP_CURVE25519_ENABLED and/or "
-                    "MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C "
-                    "not defined\n" );
-    mbedtls_exit( 0 );
+    mbedtls_printf("MBEDTLS_ECDH_C and/or "
+                   "MBEDTLS_ECP_DP_CURVE25519_ENABLED and/or "
+                   "MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C "
+                   "not defined\n");
+    mbedtls_exit(0);
 }
 #else
 
@@ -45,7 +45,7 @@
 #include <string.h>
 
 
-int main( int argc, char *argv[] )
+int main(int argc, char *argv[])
 {
     int ret = 1;
     int exit_code = MBEDTLS_EXIT_FAILURE;
@@ -64,156 +64,147 @@
     ((void) argc);
     ((void) argv);
 
-    mbedtls_ecdh_init( &ctx_cli );
-    mbedtls_ecdh_init( &ctx_srv );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
+    mbedtls_ecdh_init(&ctx_cli);
+    mbedtls_ecdh_init(&ctx_srv);
+    mbedtls_ctr_drbg_init(&ctr_drbg);
 
     /*
      * Initialize random number generation
      */
-    mbedtls_printf( "  . Seed the random number generator..." );
-    fflush( stdout );
+    mbedtls_printf("  . Seed the random number generator...");
+    fflush(stdout);
 
-    mbedtls_entropy_init( &entropy );
-    if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func,
-                                       &entropy,
-                                       (const unsigned char *) pers,
-                                       sizeof pers ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ctr_drbg_seed returned %d\n",
-                        ret );
+    mbedtls_entropy_init(&entropy);
+    if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func,
+                                     &entropy,
+                                     (const unsigned char *) pers,
+                                     sizeof pers)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ctr_drbg_seed returned %d\n",
+                       ret);
         goto exit;
     }
 
-    mbedtls_printf( " ok\n" );
+    mbedtls_printf(" ok\n");
 
     /*
      * Client: initialize context and generate keypair
      */
-    mbedtls_printf( "  . Set up client context, generate EC key pair..." );
-    fflush( stdout );
+    mbedtls_printf("  . Set up client context, generate EC key pair...");
+    fflush(stdout);
 
-    ret = mbedtls_ecdh_setup( &ctx_cli, MBEDTLS_ECP_DP_CURVE25519 );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ecdh_setup returned %d\n", ret );
+    ret = mbedtls_ecdh_setup(&ctx_cli, MBEDTLS_ECP_DP_CURVE25519);
+    if (ret != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ecdh_setup returned %d\n", ret);
         goto exit;
     }
 
-    ret = mbedtls_ecdh_make_params( &ctx_cli, &cli_olen, cli_to_srv,
-                                    sizeof( cli_to_srv ),
-                                    mbedtls_ctr_drbg_random, &ctr_drbg );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ecdh_make_params returned %d\n",
-                        ret );
+    ret = mbedtls_ecdh_make_params(&ctx_cli, &cli_olen, cli_to_srv,
+                                   sizeof(cli_to_srv),
+                                   mbedtls_ctr_drbg_random, &ctr_drbg);
+    if (ret != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ecdh_make_params returned %d\n",
+                       ret);
         goto exit;
     }
 
-    mbedtls_printf( " ok\n" );
+    mbedtls_printf(" ok\n");
 
     /*
      * Server: initialize context and generate keypair
      */
-    mbedtls_printf( "  . Server: read params, generate public key..." );
-    fflush( stdout );
+    mbedtls_printf("  . Server: read params, generate public key...");
+    fflush(stdout);
 
-    ret = mbedtls_ecdh_read_params( &ctx_srv, &p_cli_to_srv,
-                                    p_cli_to_srv + sizeof( cli_to_srv ) );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ecdh_read_params returned %d\n",
-                        ret );
+    ret = mbedtls_ecdh_read_params(&ctx_srv, &p_cli_to_srv,
+                                   p_cli_to_srv + sizeof(cli_to_srv));
+    if (ret != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ecdh_read_params returned %d\n",
+                       ret);
         goto exit;
     }
 
-    ret = mbedtls_ecdh_make_public( &ctx_srv, &srv_olen, srv_to_cli,
-                                    sizeof( srv_to_cli ),
-                                    mbedtls_ctr_drbg_random, &ctr_drbg );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ecdh_make_public returned %d\n",
-                        ret );
+    ret = mbedtls_ecdh_make_public(&ctx_srv, &srv_olen, srv_to_cli,
+                                   sizeof(srv_to_cli),
+                                   mbedtls_ctr_drbg_random, &ctr_drbg);
+    if (ret != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ecdh_make_public returned %d\n",
+                       ret);
         goto exit;
     }
 
-    mbedtls_printf( " ok\n" );
+    mbedtls_printf(" ok\n");
 
     /*
      * Client: read public key
      */
-    mbedtls_printf( "  . Client: read public key..." );
-    fflush( stdout );
+    mbedtls_printf("  . Client: read public key...");
+    fflush(stdout);
 
-    ret = mbedtls_ecdh_read_public( &ctx_cli, srv_to_cli,
-                                    sizeof( srv_to_cli ) );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ecdh_read_public returned %d\n",
-                        ret );
+    ret = mbedtls_ecdh_read_public(&ctx_cli, srv_to_cli,
+                                   sizeof(srv_to_cli));
+    if (ret != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ecdh_read_public returned %d\n",
+                       ret);
         goto exit;
     }
 
-    mbedtls_printf( " ok\n" );
+    mbedtls_printf(" ok\n");
 
     /*
      * Calculate secrets
      */
-    mbedtls_printf( "  . Calculate secrets..." );
-    fflush( stdout );
+    mbedtls_printf("  . Calculate secrets...");
+    fflush(stdout);
 
-    ret = mbedtls_ecdh_calc_secret( &ctx_cli, &cli_olen, secret_cli,
-                                    sizeof( secret_cli ),
-                                    mbedtls_ctr_drbg_random, &ctr_drbg );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ecdh_calc_secret returned %d\n",
-                        ret );
+    ret = mbedtls_ecdh_calc_secret(&ctx_cli, &cli_olen, secret_cli,
+                                   sizeof(secret_cli),
+                                   mbedtls_ctr_drbg_random, &ctr_drbg);
+    if (ret != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ecdh_calc_secret returned %d\n",
+                       ret);
         goto exit;
     }
 
-    ret = mbedtls_ecdh_calc_secret( &ctx_srv, &srv_olen, secret_srv,
-                                    sizeof( secret_srv ),
-                                    mbedtls_ctr_drbg_random, &ctr_drbg );
-    if( ret != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_ecdh_calc_secret returned %d\n",
-                        ret );
+    ret = mbedtls_ecdh_calc_secret(&ctx_srv, &srv_olen, secret_srv,
+                                   sizeof(secret_srv),
+                                   mbedtls_ctr_drbg_random, &ctr_drbg);
+    if (ret != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ecdh_calc_secret returned %d\n",
+                       ret);
         goto exit;
     }
 
-    mbedtls_printf( " ok\n" );
+    mbedtls_printf(" ok\n");
 
     /*
      * Verification: are the computed secrets equal?
      */
-    mbedtls_printf( "  . Check if both calculated secrets are equal..." );
-    fflush( stdout );
+    mbedtls_printf("  . Check if both calculated secrets are equal...");
+    fflush(stdout);
 
-    ret = memcmp( secret_srv, secret_cli, srv_olen );
-    if( ret != 0 || ( cli_olen != srv_olen ) )
-    {
-        mbedtls_printf( " failed\n  ! Shared secrets not equal.\n" );
+    ret = memcmp(secret_srv, secret_cli, srv_olen);
+    if (ret != 0 || (cli_olen != srv_olen)) {
+        mbedtls_printf(" failed\n  ! Shared secrets not equal.\n");
         goto exit;
     }
 
-    mbedtls_printf( " ok\n" );
+    mbedtls_printf(" ok\n");
 
     exit_code = MBEDTLS_EXIT_SUCCESS;
 
 exit:
 
 #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_ecdh_free( &ctx_srv );
-    mbedtls_ecdh_free( &ctx_cli );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
+    mbedtls_ecdh_free(&ctx_srv);
+    mbedtls_ecdh_free(&ctx_cli);
+    mbedtls_ctr_drbg_free(&ctr_drbg);
+    mbedtls_entropy_free(&entropy);
 
-    mbedtls_exit( exit_code );
+    mbedtls_exit(exit_code);
 }
 #endif /* MBEDTLS_ECDH_C && MBEDTLS_ECP_DP_CURVE25519_ENABLED &&
           MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C */