diff -Naur a/src/tpm12/tpm_crypto.c b/src/tpm12/tpm_crypto.c
--- a/src/tpm12/tpm_crypto.c	2023-07-04 10:48:24.000000000 -0700
+++ b/src/tpm12/tpm_crypto.c	2023-07-04 15:41:40.000000000 -0700
@@ -48,6 +48,9 @@
 #include <openssl/rand.h>
 #include <openssl/sha.h>
 #include <openssl/engine.h>
+#include <openssl/rsa.h>
+#include <openssl/evp.h>
+#include <openssl/err.h>
 
 #include "tpm_cryptoh.h"
 #include "tpm_debug.h"