Add SHA-1 fingerprint

cert_deets.py

@@ -11,6 +11,7 @@ from urllib.parse import urlparse
 
 from cryptography import x509
 from cryptography.hazmat.backends import default_backend
+from cryptography.hazmat.primitives import hashes
 from tabulate import tabulate
 
 SAN_GROUPING = 4
@@ -111,6 +112,10 @@ if __name__ == "__main__":
             ["Valid from", cert.not_valid_before_utc],
             ["Valid to", cert.not_valid_after_utc],
             ["Issuer", cert.issuer.rfc4514_string()],
+            [
+                "SHA1 fingerprint",
+                ":".join([format(i, "02x") for i in cert.fingerprint(hashes.SHA1())]),
+            ],
         ]
 
         print(tabulate(table, tablefmt="plain"))