diff --git a/tests/suites/test_suite_ssl.data b/tests/suites/test_suite_ssl.data
index 4db9cfe..0dd4455 100644
--- a/tests/suites/test_suite_ssl.data
+++ b/tests/suites/test_suite_ssl.data
@@ -10398,6 +10398,24 @@
 depends_on:MBEDTLS_DES_C:MBEDTLS_SHA512_C:!MBEDTLS_SHA512_NO_SHA384
 ssl_decrypt_non_etm_cbc:MBEDTLS_CIPHER_DES_EDE3_CBC:MBEDTLS_MD_SHA384:1:255
 
+SSL TLS 1.3 Key schedule: Secret evolution #1
+# Vector from TLS 1.3 Byte by Byte (https://tls13.ulfheim.net/)
+# Initial secret to Early Secret
+depends_on:MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL
+ssl_tls1_3_key_evolution:MBEDTLS_MD_SHA256:"":"":"33ad0a1c607ec03b09e6cd9893680ce210adf300aa1f2660e1b22e10f170f92a"
+
+SSL TLS 1.3 Key schedule: Secret evolution #2
+# Vector from TLS 1.3 Byte by Byte (https://tls13.ulfheim.net/)
+# Early secret to Handshake Secret
+depends_on:MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL
+ssl_tls1_3_key_evolution:MBEDTLS_MD_SHA256:"33ad0a1c607ec03b09e6cd9893680ce210adf300aa1f2660e1b22e10f170f92a":"df4a291baa1eb7cfa6934b29b474baad2697e29f1f920dcc77c8a0a088447624":"fb9fc80689b3a5d02c33243bf69a1b1b20705588a794304a6e7120155edf149a"
+
+SSL TLS 1.3 Key schedule: Secret evolution #3
+# Vector from TLS 1.3 Byte by Byte (https://tls13.ulfheim.net/)
+# Handshake secret to Master Secret
+depends_on:MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL
+ssl_tls1_3_key_evolution:MBEDTLS_MD_SHA256:"fb9fc80689b3a5d02c33243bf69a1b1b20705588a794304a6e7120155edf149a":"":"7f2882bb9b9a46265941653e9c2f19067118151e21d12e57a7b6aca1f8150c8d"
+
 SSL TLS 1.3 Key schedule: HKDF Expand Label #1
 # Vector from TLS 1.3 Byte by Byte (https://tls13.ulfheim.net/)
 # Server handshake traffic secret -> Server traffic key
diff --git a/tests/suites/test_suite_ssl.function b/tests/suites/test_suite_ssl.function
index b488b23..e0588f7 100644
--- a/tests/suites/test_suite_ssl.function
+++ b/tests/suites/test_suite_ssl.function
@@ -3769,6 +3769,24 @@
 }
 /* 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,
+                               data_t *expected )
+{
+    unsigned char secret_new[ MBEDTLS_MD_MAX_SIZE ];
+
+    TEST_ASSERT( mbedtls_ssl_tls1_3_evolve_secret(
+                      (mbedtls_md_type_t) hash_alg,
+                      secret->len ? secret->x : NULL,
+                      input->len ? input->x : NULL, input->len,
+                      secret_new ) == 0 );
+
+    TEST_ASSERT( memcmp( secret_new, expected->x, expected->len ) == 0 );
+}
+/* END_CASE */
+
 /* BEGIN_CASE */
 void ssl_tls_prf( int type, data_t * secret, data_t * random,
                   char *label, data_t *result_hex_str, int exp_ret )