diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 57f5f89..0e56ff0 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -249,6 +249,20 @@
  * counter (8) + header (5) + IV(16) + MAC (16-48) + padding (0-256).
  */
 
+/* Some internal helpers to determine which keys are availble. */
+#if (!defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_AES_C)) || \
+    (defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_KEY_TYPE_AES))
+#define MBEDTLS_SSL_HAVE_AES
+#endif
+#if (!defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_CAMELLIA_C)) || \
+    (defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_KEY_TYPE_CAMELLIA))
+#define MBEDTLS_SSL_HAVE_CAMELLIA
+#endif
+#if (!defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_ARIA_C)) || \
+    (defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_KEY_TYPE_ARIA))
+#define MBEDTLS_SSL_HAVE_ARIA
+#endif
+
 /* Some internal helpers to determine which keys are availble for CBC mode. */
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 #if defined(PSA_WANT_ALG_CBC_NO_PADDING)