diff --git a/tests/suites/test_suite_ssl.data b/tests/suites/test_suite_ssl.data
index ab00130..6060340 100644
--- a/tests/suites/test_suite_ssl.data
+++ b/tests/suites/test_suite_ssl.data
@@ -9241,6 +9241,22 @@
 # Vector from RFC 8448
 ssl_tls1_3_derive_secret:MBEDTLS_MD_SHA256:"e2d32d4ed66dd37897a0e80c84107503ce58bf8aad4cb55a5002d77ecb890ece":tls1_3_label_res_master:"c3c122e0bd907a4a3ff6112d8fd53dbf89c773d9552e8b6b9d56d361b3a97bf6":32:MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED:"5e95bdf1f89005ea2e9aa0ba85e728e3c19c5fe0c699e3f5bee59faebd0b5406"
 
+SSL TLS 1.3 Key schedule: Early secrets derivation helper
+# Vector from RFC 8448
+ssl_tls1_3_derive_early_secrets:MBEDTLS_MD_SHA256:"9b2188e9b2fc6d64d71dc329900e20bb41915000f678aa839cbb797cb7d8332c":"08ad0fa05d7c7233b1775ba2ff9f4c5b8b59276b7f227f13a976245f5d960913":"3fbbe6a60deb66c30a32795aba0eff7eaa10105586e7be5c09678d63b6caab62":"b2026866610937d7423e5be90862ccf24c0e6091186d34f812089ff5be2ef7df"
+
+SSL TLS 1.3 Key schedule: Handshake secrets derivation helper
+# Vector from RFC 8448
+ssl_tls1_3_derive_handshake_secrets:MBEDTLS_MD_SHA256:"005cb112fd8eb4ccc623bb88a07c64b3ede1605363fc7d0df8c7ce4ff0fb4ae6":"f736cb34fe25e701551bee6fd24c1cc7102a7daf9405cb15d97aafe16f757d03":"2faac08f851d35fea3604fcb4de82dc62c9b164a70974d0462e27f1ab278700f":"fe927ae271312e8bf0275b581c54eef020450dc4ecffaa05a1a35d27518e7803"
+
+SSL TLS 1.3 Key schedule: Application secrets derivation helper
+# Vector from RFC 8448
+ssl_tls1_3_derive_application_secrets:MBEDTLS_MD_SHA256:"e2d32d4ed66dd37897a0e80c84107503ce58bf8aad4cb55a5002d77ecb890ece":"b0aeffc46a2cfe33114e6fd7d51f9f04b1ca3c497dab08934a774a9d9ad7dbf3":"2abbf2b8e381d23dbebe1dd2a7d16a8bf484cb4950d23fb7fb7fa8547062d9a1":"cc21f1bf8feb7dd5fa505bd9c4b468a9984d554a993dc49e6d285598fb672691":"3fd93d4ffddc98e64b14dd107aedf8ee4add23f4510f58a4592d0b201bee56b4"
+
+SSL TLS 1.3 Key schedule: Resumption secrets derivation helper
+# Vector from RFC 8448
+ssl_tls1_3_derive_resumption_secrets:MBEDTLS_MD_SHA256:"e2d32d4ed66dd37897a0e80c84107503ce58bf8aad4cb55a5002d77ecb890ece":"c3c122e0bd907a4a3ff6112d8fd53dbf89c773d9552e8b6b9d56d361b3a97bf6":"5e95bdf1f89005ea2e9aa0ba85e728e3c19c5fe0c699e3f5bee59faebd0b5406"
+
 SSL TLS_PRF MBEDTLS_SSL_TLS_PRF_NONE
 ssl_tls_prf:MBEDTLS_SSL_TLS_PRF_NONE:"":"":"test tls_prf label":"":MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE
 
diff --git a/tests/suites/test_suite_ssl.function b/tests/suites/test_suite_ssl.function
index d9261d1..59fae70 100644
--- a/tests/suites/test_suite_ssl.function
+++ b/tests/suites/test_suite_ssl.function
@@ -3794,6 +3794,126 @@
 /* END_CASE */
 
 /* BEGIN_CASE depends_on:MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL */
+void ssl_tls1_3_derive_early_secrets( int hash_alg,
+                                      data_t *secret,
+                                      data_t *transcript,
+                                      data_t *traffic_expected,
+                                      data_t *exporter_expected )
+{
+    mbedtls_ssl_tls1_3_early_secrets secrets;
+
+    /* Double-check that we've passed sane parameters. */
+    mbedtls_md_type_t md_type = (mbedtls_md_type_t) hash_alg;
+    mbedtls_md_info_t const * const md_info = mbedtls_md_info_from_type( md_type );
+    size_t const md_size = mbedtls_md_get_size( md_info );
+    TEST_ASSERT( md_info != 0                      &&
+                 secret->len == md_size            &&
+                 transcript->len == md_size        &&
+                 traffic_expected->len == md_size  &&
+                 exporter_expected->len == md_size );
+
+    TEST_ASSERT( mbedtls_ssl_tls1_3_derive_early_secrets(
+                     md_type, secret->x, transcript->x, transcript->len,
+                     &secrets ) == 0 );
+
+    ASSERT_COMPARE( secrets.client_early_traffic_secret, md_size,
+                    traffic_expected->x, traffic_expected->len );
+    ASSERT_COMPARE( secrets.early_exporter_master_secret, md_size,
+                    exporter_expected->x, exporter_expected->len );
+}
+/* END_CASE */
+
+/* BEGIN_CASE depends_on:MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL */
+void ssl_tls1_3_derive_handshake_secrets( int hash_alg,
+                                          data_t *secret,
+                                          data_t *transcript,
+                                          data_t *client_expected,
+                                          data_t *server_expected )
+{
+    mbedtls_ssl_tls1_3_handshake_secrets secrets;
+
+    /* Double-check that we've passed sane parameters. */
+    mbedtls_md_type_t md_type = (mbedtls_md_type_t) hash_alg;
+    mbedtls_md_info_t const * const md_info = mbedtls_md_info_from_type( md_type );
+    size_t const md_size = mbedtls_md_get_size( md_info );
+    TEST_ASSERT( md_info != 0                      &&
+                 secret->len == md_size            &&
+                 transcript->len == md_size        &&
+                 client_expected->len == md_size   &&
+                 server_expected->len == md_size );
+
+    TEST_ASSERT( mbedtls_ssl_tls1_3_derive_handshake_secrets(
+                     md_type, secret->x, transcript->x, transcript->len,
+                     &secrets ) == 0 );
+
+    ASSERT_COMPARE( secrets.client_handshake_traffic_secret, md_size,
+                    client_expected->x, client_expected->len );
+    ASSERT_COMPARE( secrets.server_handshake_traffic_secret, md_size,
+                    server_expected->x, server_expected->len );
+}
+/* END_CASE */
+
+/* BEGIN_CASE depends_on:MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL */
+void ssl_tls1_3_derive_application_secrets( int hash_alg,
+                                          data_t *secret,
+                                          data_t *transcript,
+                                          data_t *client_expected,
+                                          data_t *server_expected,
+                                          data_t *exporter_expected )
+{
+    mbedtls_ssl_tls1_3_application_secrets secrets;
+
+    /* Double-check that we've passed sane parameters. */
+    mbedtls_md_type_t md_type = (mbedtls_md_type_t) hash_alg;
+    mbedtls_md_info_t const * const md_info = mbedtls_md_info_from_type( md_type );
+    size_t const md_size = mbedtls_md_get_size( md_info );
+    TEST_ASSERT( md_info != 0                      &&
+                 secret->len == md_size            &&
+                 transcript->len == md_size        &&
+                 client_expected->len == md_size   &&
+                 server_expected->len == md_size   &&
+                 exporter_expected->len == md_size );
+
+    TEST_ASSERT( mbedtls_ssl_tls1_3_derive_application_secrets(
+                     md_type, secret->x, transcript->x, transcript->len,
+                     &secrets ) == 0 );
+
+    ASSERT_COMPARE( secrets.client_application_traffic_secret_N, md_size,
+                    client_expected->x, client_expected->len );
+    ASSERT_COMPARE( secrets.server_application_traffic_secret_N, md_size,
+                    server_expected->x, server_expected->len );
+    ASSERT_COMPARE( secrets.exporter_master_secret, md_size,
+                    exporter_expected->x, exporter_expected->len );
+}
+/* END_CASE */
+
+/* BEGIN_CASE depends_on:MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL */
+void ssl_tls1_3_derive_resumption_secrets( int hash_alg,
+                                           data_t *secret,
+                                           data_t *transcript,
+                                           data_t *resumption_expected )
+{
+    mbedtls_ssl_tls1_3_application_secrets secrets;
+
+    /* Double-check that we've passed sane parameters. */
+    mbedtls_md_type_t md_type = (mbedtls_md_type_t) hash_alg;
+    mbedtls_md_info_t const * const md_info = mbedtls_md_info_from_type( md_type );
+    size_t const md_size = mbedtls_md_get_size( md_info );
+    TEST_ASSERT( md_info != 0                        &&
+                 secret->len == md_size              &&
+                 transcript->len == md_size          &&
+                 resumption_expected->len == md_size );
+
+    TEST_ASSERT( mbedtls_ssl_tls1_3_derive_resumption_master_secret(
+                     md_type, secret->x, transcript->x, transcript->len,
+                     &secrets ) == 0 );
+
+    ASSERT_COMPARE( secrets.resumption_master_secret, md_size,
+                    resumption_expected->x, resumption_expected->len );
+}
+/* END_CASE */
+
+/* BEGIN_CASE depends_on:MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL */
 void ssl_tls1_3_key_evolution( int hash_alg,
                                data_t *secret,
                                data_t *input,