diff --git a/programs/pkey/ecdh_curve25519.c b/programs/pkey/ecdh_curve25519.c
index 67f1363..1f4b8bc 100644
--- a/programs/pkey/ecdh_curve25519.c
+++ b/programs/pkey/ecdh_curve25519.c
@@ -91,14 +91,14 @@
     mbedtls_printf( "  . Setting up client context..." );
     fflush( stdout );
 
-    ret = mbedtls_ecp_group_load( &ctx_cli.grp, MBEDTLS_ECP_DP_CURVE25519 );
+    ret = mbedtls_ecp_group_load( &ctx_cli.MBEDTLS_PRIVATE(grp), MBEDTLS_ECP_DP_CURVE25519 );
     if( ret != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_ecp_group_load returned %d\n", ret );
         goto exit;
     }
 
-    ret = mbedtls_ecdh_gen_public( &ctx_cli.grp, &ctx_cli.d, &ctx_cli.Q,
+    ret = mbedtls_ecdh_gen_public( &ctx_cli.MBEDTLS_PRIVATE(grp), &ctx_cli.MBEDTLS_PRIVATE(d), &ctx_cli.MBEDTLS_PRIVATE(Q),
                                    mbedtls_ctr_drbg_random, &ctr_drbg );
     if( ret != 0 )
     {
@@ -106,7 +106,7 @@
         goto exit;
     }
 
-    ret = mbedtls_mpi_write_binary( &ctx_cli.Q.X, cli_to_srv, 32 );
+    ret = mbedtls_mpi_write_binary( &ctx_cli.MBEDTLS_PRIVATE(Q).MBEDTLS_PRIVATE(X), cli_to_srv, 32 );
     if( ret != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_mpi_write_binary returned %d\n", ret );
@@ -121,14 +121,14 @@
     mbedtls_printf( "  . Setting up server context..." );
     fflush( stdout );
 
-    ret = mbedtls_ecp_group_load( &ctx_srv.grp, MBEDTLS_ECP_DP_CURVE25519 );
+    ret = mbedtls_ecp_group_load( &ctx_srv.MBEDTLS_PRIVATE(grp), MBEDTLS_ECP_DP_CURVE25519 );
     if( ret != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_ecp_group_load returned %d\n", ret );
         goto exit;
     }
 
-    ret = mbedtls_ecdh_gen_public( &ctx_srv.grp, &ctx_srv.d, &ctx_srv.Q,
+    ret = mbedtls_ecdh_gen_public( &ctx_srv.MBEDTLS_PRIVATE(grp), &ctx_srv.MBEDTLS_PRIVATE(d), &ctx_srv.MBEDTLS_PRIVATE(Q),
                                    mbedtls_ctr_drbg_random, &ctr_drbg );
     if( ret != 0 )
     {
@@ -136,7 +136,7 @@
         goto exit;
     }
 
-    ret = mbedtls_mpi_write_binary( &ctx_srv.Q.X, srv_to_cli, 32 );
+    ret = mbedtls_mpi_write_binary( &ctx_srv.MBEDTLS_PRIVATE(Q).MBEDTLS_PRIVATE(X), srv_to_cli, 32 );
     if( ret != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_mpi_write_binary returned %d\n", ret );
@@ -151,22 +151,22 @@
     mbedtls_printf( "  . Server reading client key and computing secret..." );
     fflush( stdout );
 
-    ret = mbedtls_mpi_lset( &ctx_srv.Qp.Z, 1 );
+    ret = mbedtls_mpi_lset( &ctx_srv.MBEDTLS_PRIVATE(Qp).MBEDTLS_PRIVATE(Z), 1 );
     if( ret != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_mpi_lset returned %d\n", ret );
         goto exit;
     }
 
-    ret = mbedtls_mpi_read_binary( &ctx_srv.Qp.X, cli_to_srv, 32 );
+    ret = mbedtls_mpi_read_binary( &ctx_srv.MBEDTLS_PRIVATE(Qp).MBEDTLS_PRIVATE(X), cli_to_srv, 32 );
     if( ret != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_mpi_read_binary returned %d\n", ret );
         goto exit;
     }
 
-    ret = mbedtls_ecdh_compute_shared( &ctx_srv.grp, &ctx_srv.z,
-                                       &ctx_srv.Qp, &ctx_srv.d,
+    ret = mbedtls_ecdh_compute_shared( &ctx_srv.MBEDTLS_PRIVATE(grp), &ctx_srv.MBEDTLS_PRIVATE(z),
+                                       &ctx_srv.MBEDTLS_PRIVATE(Qp), &ctx_srv.MBEDTLS_PRIVATE(d),
                                        mbedtls_ctr_drbg_random, &ctr_drbg );
     if( ret != 0 )
     {
@@ -182,22 +182,22 @@
     mbedtls_printf( "  . Client reading server key and computing secret..." );
     fflush( stdout );
 
-    ret = mbedtls_mpi_lset( &ctx_cli.Qp.Z, 1 );
+    ret = mbedtls_mpi_lset( &ctx_cli.MBEDTLS_PRIVATE(Qp).MBEDTLS_PRIVATE(Z), 1 );
     if( ret != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_mpi_lset returned %d\n", ret );
         goto exit;
     }
 
-    ret = mbedtls_mpi_read_binary( &ctx_cli.Qp.X, srv_to_cli, 32 );
+    ret = mbedtls_mpi_read_binary( &ctx_cli.MBEDTLS_PRIVATE(Qp).MBEDTLS_PRIVATE(X), srv_to_cli, 32 );
     if( ret != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_mpi_read_binary returned %d\n", ret );
         goto exit;
     }
 
-    ret = mbedtls_ecdh_compute_shared( &ctx_cli.grp, &ctx_cli.z,
-                                       &ctx_cli.Qp, &ctx_cli.d,
+    ret = mbedtls_ecdh_compute_shared( &ctx_cli.MBEDTLS_PRIVATE(grp), &ctx_cli.MBEDTLS_PRIVATE(z),
+                                       &ctx_cli.MBEDTLS_PRIVATE(Qp), &ctx_cli.MBEDTLS_PRIVATE(d),
                                        mbedtls_ctr_drbg_random, &ctr_drbg );
     if( ret != 0 )
     {
@@ -213,7 +213,7 @@
     mbedtls_printf( "  . Checking if both computed secrets are equal..." );
     fflush( stdout );
 
-    ret = mbedtls_mpi_cmp_mpi( &ctx_cli.z, &ctx_srv.z );
+    ret = mbedtls_mpi_cmp_mpi( &ctx_cli.MBEDTLS_PRIVATE(z), &ctx_srv.MBEDTLS_PRIVATE(z) );
     if( ret != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_ecdh_compute_shared returned %d\n", ret );