diff --git a/programs/pkey/dh_server.c b/programs/pkey/dh_server.c
index 6ad00d6..0200b2e 100644
--- a/programs/pkey/dh_server.c
+++ b/programs/pkey/dh_server.c
@@ -50,18 +50,18 @@
     !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_SHA256_C) ||    \
     !defined(MBEDTLS_FS_IO) || !defined(MBEDTLS_CTR_DRBG_C) || \
     !defined(MBEDTLS_SHA1_C)
-int main( void )
+int main(void)
 {
     mbedtls_printf("MBEDTLS_AES_C and/or MBEDTLS_DHM_C and/or MBEDTLS_ENTROPY_C "
-           "and/or MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or "
-           "MBEDTLS_SHA256_C and/or MBEDTLS_FS_IO and/or "
-           "MBEDTLS_CTR_DRBG_C not defined.\n");
-    mbedtls_exit( 0 );
+                   "and/or MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or "
+                   "MBEDTLS_SHA256_C and/or MBEDTLS_FS_IO and/or "
+                   "MBEDTLS_CTR_DRBG_C not defined.\n");
+    mbedtls_exit(0);
 }
 #else
 
 
-int main( void )
+int main(void)
 {
     FILE *f;
 
@@ -83,196 +83,181 @@
 
     mbedtls_mpi N, P, Q, D, E;
 
-    mbedtls_net_init( &listen_fd );
-    mbedtls_net_init( &client_fd );
-    mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, MBEDTLS_MD_SHA256 );
-    mbedtls_dhm_init( &dhm );
-    mbedtls_aes_init( &aes );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
+    mbedtls_net_init(&listen_fd);
+    mbedtls_net_init(&client_fd);
+    mbedtls_rsa_init(&rsa, MBEDTLS_RSA_PKCS_V15, MBEDTLS_MD_SHA256);
+    mbedtls_dhm_init(&dhm);
+    mbedtls_aes_init(&aes);
+    mbedtls_ctr_drbg_init(&ctr_drbg);
 
-    mbedtls_mpi_init( &N ); mbedtls_mpi_init( &P ); mbedtls_mpi_init( &Q );
-    mbedtls_mpi_init( &D ); mbedtls_mpi_init( &E );
+    mbedtls_mpi_init(&N); mbedtls_mpi_init(&P); mbedtls_mpi_init(&Q);
+    mbedtls_mpi_init(&D); mbedtls_mpi_init(&E);
 
     /*
      * 1. Setup the RNG
      */
-    mbedtls_printf( "\n  . Seeding the random number generator" );
-    fflush( stdout );
+    mbedtls_printf("\n  . Seeding 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,
-                               strlen( 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,
+                                     strlen(pers))) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_ctr_drbg_seed returned %d\n", ret);
         goto exit;
     }
 
     /*
      * 2a. Read the server's private RSA key
      */
-    mbedtls_printf( "\n  . Reading private key from rsa_priv.txt" );
-    fflush( stdout );
+    mbedtls_printf("\n  . Reading private key from rsa_priv.txt");
+    fflush(stdout);
 
-    if( ( f = fopen( "rsa_priv.txt", "rb" ) ) == NULL )
-    {
-        mbedtls_printf( " failed\n  ! Could not open rsa_priv.txt\n" \
-                "  ! Please run rsa_genkey first\n\n" );
+    if ((f = fopen("rsa_priv.txt", "rb")) == NULL) {
+        mbedtls_printf(" failed\n  ! Could not open rsa_priv.txt\n" \
+                       "  ! Please run rsa_genkey first\n\n");
         goto exit;
     }
 
-    mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 );
+    mbedtls_rsa_init(&rsa, MBEDTLS_RSA_PKCS_V15, 0);
 
-    if( ( ret = mbedtls_mpi_read_file( &N , 16, f ) ) != 0 ||
-        ( ret = mbedtls_mpi_read_file( &E , 16, f ) ) != 0 ||
-        ( ret = mbedtls_mpi_read_file( &D , 16, f ) ) != 0 ||
-        ( ret = mbedtls_mpi_read_file( &P , 16, f ) ) != 0 ||
-        ( ret = mbedtls_mpi_read_file( &Q , 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 ||
+        (ret = mbedtls_mpi_read_file(&D, 16, f)) != 0 ||
+        (ret = mbedtls_mpi_read_file(&P, 16, f)) != 0 ||
+        (ret = mbedtls_mpi_read_file(&Q, 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, &P, &Q, &D, &E ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_rsa_import returned %d\n\n",
-                        ret );
+    if ((ret = mbedtls_rsa_import(&rsa, &N, &P, &Q, &D, &E)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_rsa_import returned %d\n\n",
+                       ret);
         goto exit;
     }
 
-    if( ( ret = mbedtls_rsa_complete( &rsa ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_rsa_complete returned %d\n\n",
-                        ret );
+    if ((ret = mbedtls_rsa_complete(&rsa)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_rsa_complete returned %d\n\n",
+                       ret);
         goto exit;
     }
 
     /*
      * 2b. Get the DHM modulus and generator
      */
-    mbedtls_printf( "\n  . Reading DH parameters from dh_prime.txt" );
-    fflush( stdout );
+    mbedtls_printf("\n  . Reading DH parameters from dh_prime.txt");
+    fflush(stdout);
 
-    if( ( f = fopen( "dh_prime.txt", "rb" ) ) == NULL )
-    {
-        mbedtls_printf( " failed\n  ! Could not open dh_prime.txt\n" \
-                "  ! Please run dh_genprime first\n\n" );
+    if ((f = fopen("dh_prime.txt", "rb")) == NULL) {
+        mbedtls_printf(" failed\n  ! Could not open dh_prime.txt\n" \
+                       "  ! Please run dh_genprime first\n\n");
         goto exit;
     }
 
-    if( mbedtls_mpi_read_file( &dhm.P, 16, f ) != 0 ||
-        mbedtls_mpi_read_file( &dhm.G, 16, f ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! Invalid DH parameter file\n\n" );
-        fclose( f );
+    if (mbedtls_mpi_read_file(&dhm.P, 16, f) != 0 ||
+        mbedtls_mpi_read_file(&dhm.G, 16, f) != 0) {
+        mbedtls_printf(" failed\n  ! Invalid DH parameter file\n\n");
+        fclose(f);
         goto exit;
     }
 
-    fclose( f );
+    fclose(f);
 
     /*
      * 3. Wait for a client to connect
      */
-    mbedtls_printf( "\n  . Waiting for a remote connection" );
-    fflush( stdout );
+    mbedtls_printf("\n  . Waiting for a remote connection");
+    fflush(stdout);
 
-    if( ( ret = mbedtls_net_bind( &listen_fd, NULL, SERVER_PORT, MBEDTLS_NET_PROTO_TCP ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_bind returned %d\n\n", ret );
+    if ((ret = mbedtls_net_bind(&listen_fd, NULL, SERVER_PORT, MBEDTLS_NET_PROTO_TCP)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_net_bind returned %d\n\n", ret);
         goto exit;
     }
 
-    if( ( ret = mbedtls_net_accept( &listen_fd, &client_fd,
-                                    NULL, 0, NULL ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_accept returned %d\n\n", ret );
+    if ((ret = mbedtls_net_accept(&listen_fd, &client_fd,
+                                  NULL, 0, NULL)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_net_accept returned %d\n\n", ret);
         goto exit;
     }
 
     /*
      * 4. Setup the DH parameters (P,G,Ys)
      */
-    mbedtls_printf( "\n  . Sending the server's DH parameters" );
-    fflush( stdout );
+    mbedtls_printf("\n  . Sending the server's DH parameters");
+    fflush(stdout);
 
-    memset( buf, 0, sizeof( buf ) );
+    memset(buf, 0, sizeof(buf));
 
-    if( ( ret = mbedtls_dhm_make_params( &dhm, (int) mbedtls_mpi_size( &dhm.P ), buf, &n,
-                                 mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_dhm_make_params returned %d\n\n", ret );
+    if ((ret = mbedtls_dhm_make_params(&dhm, (int) mbedtls_mpi_size(&dhm.P), buf, &n,
+                                       mbedtls_ctr_drbg_random, &ctr_drbg)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_dhm_make_params returned %d\n\n", ret);
         goto exit;
     }
 
     /*
      * 5. Sign the parameters and send them
      */
-    if( ( ret = mbedtls_sha1_ret( buf, n, hash ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_sha1_ret returned %d\n\n", ret );
+    if ((ret = mbedtls_sha1_ret(buf, n, hash)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_sha1_ret returned %d\n\n", ret);
         goto exit;
     }
 
-    buf[n    ] = (unsigned char)( rsa.len >> 8 );
-    buf[n + 1] = (unsigned char)( rsa.len      );
+    buf[n] = (unsigned char) (rsa.len >> 8);
+    buf[n + 1] = (unsigned char) (rsa.len);
 
-    if( ( ret = mbedtls_rsa_pkcs1_sign( &rsa, NULL, NULL, MBEDTLS_RSA_PRIVATE, MBEDTLS_MD_SHA256,
-                                0, hash, buf + n + 2 ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_rsa_pkcs1_sign returned %d\n\n", ret );
+    if ((ret = mbedtls_rsa_pkcs1_sign(&rsa, NULL, NULL, MBEDTLS_RSA_PRIVATE, MBEDTLS_MD_SHA256,
+                                      0, hash, buf + n + 2)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_rsa_pkcs1_sign returned %d\n\n", ret);
         goto exit;
     }
 
     buflen = n + 2 + rsa.len;
-    buf2[0] = (unsigned char)( buflen >> 8 );
-    buf2[1] = (unsigned char)( buflen      );
+    buf2[0] = (unsigned char) (buflen >> 8);
+    buf2[1] = (unsigned char) (buflen);
 
-    if( ( ret = mbedtls_net_send( &client_fd, buf2, 2 ) ) != 2 ||
-        ( ret = mbedtls_net_send( &client_fd, buf, buflen ) ) != (int) buflen )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_send returned %d\n\n", ret );
+    if ((ret = mbedtls_net_send(&client_fd, buf2, 2)) != 2 ||
+        (ret = mbedtls_net_send(&client_fd, buf, buflen)) != (int) buflen) {
+        mbedtls_printf(" failed\n  ! mbedtls_net_send returned %d\n\n", ret);
         goto exit;
     }
 
     /*
      * 6. Get the client's public value: Yc = G ^ Xc mod P
      */
-    mbedtls_printf( "\n  . Receiving the client's public value" );
-    fflush( stdout );
+    mbedtls_printf("\n  . Receiving the client's public value");
+    fflush(stdout);
 
-    memset( buf, 0, sizeof( buf ) );
+    memset(buf, 0, sizeof(buf));
 
     n = dhm.len;
-    if( ( ret = mbedtls_net_recv( &client_fd, buf, n ) ) != (int) n )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_recv returned %d\n\n", ret );
+    if ((ret = mbedtls_net_recv(&client_fd, buf, n)) != (int) n) {
+        mbedtls_printf(" failed\n  ! mbedtls_net_recv returned %d\n\n", ret);
         goto exit;
     }
 
-    if( ( ret = mbedtls_dhm_read_public( &dhm, buf, dhm.len ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_dhm_read_public returned %d\n\n", ret );
+    if ((ret = mbedtls_dhm_read_public(&dhm, buf, dhm.len)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_dhm_read_public returned %d\n\n", ret);
         goto exit;
     }
 
     /*
      * 7. Derive the shared secret: K = Ys ^ Xc mod P
      */
-    mbedtls_printf( "\n  . Shared secret: " );
-    fflush( stdout );
+    mbedtls_printf("\n  . Shared secret: ");
+    fflush(stdout);
 
-    if( ( ret = mbedtls_dhm_calc_secret( &dhm, buf, sizeof( buf ), &n,
-                                 mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_dhm_calc_secret returned %d\n\n", ret );
+    if ((ret = mbedtls_dhm_calc_secret(&dhm, buf, sizeof(buf), &n,
+                                       mbedtls_ctr_drbg_random, &ctr_drbg)) != 0) {
+        mbedtls_printf(" failed\n  ! mbedtls_dhm_calc_secret returned %d\n\n", ret);
         goto exit;
     }
 
-    for( n = 0; n < 16; n++ )
-        mbedtls_printf( "%02x", buf[n] );
+    for (n = 0; n < 16; n++) {
+        mbedtls_printf("%02x", buf[n]);
+    }
 
     /*
      * 8. Setup the AES-256 encryption key
@@ -282,47 +267,48 @@
      * the keying material for the encryption/decryption keys
      * and MACs.
      */
-    mbedtls_printf( "...\n  . Encrypting and sending the ciphertext" );
-    fflush( stdout );
+    mbedtls_printf("...\n  . Encrypting and sending the ciphertext");
+    fflush(stdout);
 
-    ret = mbedtls_aes_setkey_enc( &aes, buf, 256 );
-    if( ret != 0 )
+    ret = mbedtls_aes_setkey_enc(&aes, buf, 256);
+    if (ret != 0) {
         goto exit;
-    memcpy( buf, PLAINTEXT, 16 );
-    ret = mbedtls_aes_crypt_ecb( &aes, MBEDTLS_AES_ENCRYPT, buf, buf );
-    if( ret != 0 )
-        goto exit;
-
-    if( ( ret = mbedtls_net_send( &client_fd, buf, 16 ) ) != 16 )
-    {
-        mbedtls_printf( " failed\n  ! mbedtls_net_send returned %d\n\n", ret );
+    }
+    memcpy(buf, PLAINTEXT, 16);
+    ret = mbedtls_aes_crypt_ecb(&aes, MBEDTLS_AES_ENCRYPT, buf, buf);
+    if (ret != 0) {
         goto exit;
     }
 
-    mbedtls_printf( "\n\n" );
+    if ((ret = mbedtls_net_send(&client_fd, buf, 16)) != 16) {
+        mbedtls_printf(" failed\n  ! mbedtls_net_send returned %d\n\n", ret);
+        goto exit;
+    }
+
+    mbedtls_printf("\n\n");
 
     exit_code = MBEDTLS_EXIT_SUCCESS;
 
 exit:
 
-    mbedtls_mpi_free( &N ); mbedtls_mpi_free( &P ); mbedtls_mpi_free( &Q );
-    mbedtls_mpi_free( &D ); mbedtls_mpi_free( &E );
+    mbedtls_mpi_free(&N); mbedtls_mpi_free(&P); mbedtls_mpi_free(&Q);
+    mbedtls_mpi_free(&D); mbedtls_mpi_free(&E);
 
-    mbedtls_net_free( &client_fd );
-    mbedtls_net_free( &listen_fd );
+    mbedtls_net_free(&client_fd);
+    mbedtls_net_free(&listen_fd);
 
-    mbedtls_aes_free( &aes );
-    mbedtls_rsa_free( &rsa );
-    mbedtls_dhm_free( &dhm );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_entropy_free( &entropy );
+    mbedtls_aes_free(&aes);
+    mbedtls_rsa_free(&rsa);
+    mbedtls_dhm_free(&dhm);
+    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_AES_C && MBEDTLS_DHM_C && MBEDTLS_ENTROPY_C &&
           MBEDTLS_NET_C && MBEDTLS_RSA_C && MBEDTLS_SHA256_C &&