diff --git a/tests/suites/test_suite_debug.function b/tests/suites/test_suite_debug.function
index fca7ea0..426d835 100644
--- a/tests/suites/test_suite_debug.function
+++ b/tests/suites/test_suite_debug.function
@@ -66,7 +66,7 @@
     memset(buffer.buf, 0, 2000);
     buffer.ptr = buffer.buf;
 
-    mbedtls_ssl_conf_rng(&conf, rng_get, NULL);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_EQUAL(mbedtls_ssl_config_defaults(&conf,
                                            MBEDTLS_SSL_IS_CLIENT,
@@ -107,7 +107,7 @@
     memset(buffer.buf, 0, 2000);
     buffer.ptr = buffer.buf;
 
-    mbedtls_ssl_conf_rng(&conf, rng_get, NULL);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_EQUAL(mbedtls_ssl_config_defaults(&conf,
                                            MBEDTLS_SSL_IS_CLIENT,
@@ -145,7 +145,7 @@
     memset(buffer.buf, 0, 2000);
     buffer.ptr = buffer.buf;
 
-    mbedtls_ssl_conf_rng(&conf, rng_get, NULL);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_EQUAL(mbedtls_ssl_config_defaults(&conf,
                                            MBEDTLS_SSL_IS_CLIENT,
@@ -185,7 +185,7 @@
     memset(buffer.buf, 0, 2000);
     buffer.ptr = buffer.buf;
 
-    mbedtls_ssl_conf_rng(&conf, rng_get, NULL);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_EQUAL(mbedtls_ssl_config_defaults(&conf,
                                            MBEDTLS_SSL_IS_CLIENT,
@@ -227,7 +227,7 @@
     memset(buffer.buf, 0, 2000);
     buffer.ptr = buffer.buf;
 
-    mbedtls_ssl_conf_rng(&conf, rng_get, NULL);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_EQUAL(mbedtls_ssl_config_defaults(&conf,
                                            MBEDTLS_SSL_IS_CLIENT,
diff --git a/tests/suites/test_suite_ssl.function b/tests/suites/test_suite_ssl.function
index 050e525..82b541c 100644
--- a/tests/suites/test_suite_ssl.function
+++ b/tests/suites/test_suite_ssl.function
@@ -1121,7 +1121,7 @@
     mbedtls_ssl_config_init(&conf);
     MD_OR_USE_PSA_INIT();
 
-    mbedtls_ssl_conf_rng(&conf, rng_get, NULL);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_ASSERT(mbedtls_ssl_config_defaults(&conf,
                                             MBEDTLS_SSL_IS_CLIENT,
@@ -2894,7 +2894,7 @@
     mbedtls_ssl_conf_transport(&conf, transport);
     mbedtls_ssl_conf_min_tls_version(&conf, min_tls_version);
     mbedtls_ssl_conf_max_tls_version(&conf, max_tls_version);
-    mbedtls_ssl_conf_rng(&conf, rng_get, NULL);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_ASSERT(mbedtls_ssl_setup(&ssl, &conf) == expected_ssl_setup_result);
     TEST_EQUAL(mbedtls_ssl_conf_get_endpoint(
@@ -2936,7 +2936,7 @@
     mbedtls_ssl_init(&ssl);
     MD_OR_USE_PSA_INIT();
 
-    mbedtls_ssl_conf_rng(&conf, rng_get, NULL);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_ASSERT(mbedtls_ssl_setup(&ssl, &conf) == 0);
 
@@ -2969,7 +2969,7 @@
     mbedtls_ssl_config conf;
     mbedtls_ssl_config_init(&conf);
 
-    mbedtls_ssl_conf_rng(&conf, rng_get, NULL);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
     mbedtls_ssl_conf_max_tls_version(&conf, MBEDTLS_SSL_VERSION_TLS1_2);
     mbedtls_ssl_conf_min_tls_version(&conf, MBEDTLS_SSL_VERSION_TLS1_2);
 
@@ -3075,7 +3075,7 @@
     mbedtls_ssl_config_init(&conf);
     USE_PSA_INIT();
 
-    mbedtls_ssl_conf_rng(&conf, rng_get, NULL);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_EQUAL(mbedtls_ssl_config_defaults(&conf, MBEDTLS_SSL_IS_SERVER,
                                            MBEDTLS_SSL_TRANSPORT_DATAGRAM,
@@ -3130,7 +3130,7 @@
     mbedtls_ssl_config_init(&conf);
     MD_OR_USE_PSA_INIT();
 
-    mbedtls_ssl_conf_rng(&conf, rng_get, NULL);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_ASSERT(mbedtls_ssl_config_defaults(&conf,
                                             MBEDTLS_SSL_IS_CLIENT,
@@ -3390,7 +3390,7 @@
 
     mbedtls_ssl_config_init(&conf);
 
-    mbedtls_ssl_conf_rng(&conf, rng_get, NULL);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_EQUAL(mbedtls_ssl_config_defaults(&conf,
                                            MBEDTLS_SSL_IS_CLIENT,