From 37efb1d96f7849a9acd9687084964c983e536c15 Mon Sep 17 00:00:00 2001
From: "radim.karnis" <radim.karnis@espressif.com>
Date: Mon, 22 May 2023 15:14:38 +0200
Subject: [PATCH] bugfix(espsecure): Print a clear error message if
 incompatible OpenSSL backend is used

Closes https://github.com/espressif/esptool/issues/878
---
 espsecure/__init__.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/espsecure/__init__.py b/espsecure/__init__.py
index 6e85af5d2..d978a862c 100755
--- a/espsecure/__init__.py
+++ b/espsecure/__init__.py
@@ -1812,6 +1812,16 @@ def _main():
     except esptool.FatalError as e:
         print("\nA fatal error occurred: %s" % e)
         sys.exit(2)
+    except ValueError as e:
+        try:
+            if [arg for arg in e.args if "Could not deserialize key data." in arg]:
+                print(
+                    "Note: This error originates from the cryptography module. "
+                    "It is likely not a problem with espsecure, "
+                    "please make sure you are using a compatible OpenSSL backend."
+                )
+        finally:
+            raise
 
 
 if __name__ == "__main__":