fix more API errors

Author: woodruffw

sigstore/dsse/__init__.py

@@ -18,6 +18,7 @@
 
 from __future__ import annotations
 
+import base64
 import logging
 from typing import Any, Literal, Optional
 
@@ -270,9 +271,9 @@ def _sign(key: ec.EllipticCurvePrivateKey, stmt: Statement) -> Envelope:
     signature = key.sign(pae, ec.ECDSA(hashes.SHA256()))
     return Envelope(
         _Envelope(
-            payload=stmt._contents,
+            payload=base64.b64encode(stmt._contents),
             payload_type=Envelope._TYPE,
-            signatures=[_Signature(sig=signature)],
+            signatures=[_Signature(sig=base64.b64encode(signature))],
         )
     )
 

sigstore/sign.py

@@ -188,7 +188,7 @@ def _finalize_sign(
 
         # Submit the proposed entry to the transparency log
         entry = self._signing_ctx._rekor.create_entry(proposed_entry)
-        _logger.debug(f"Transparency log entry created with index: {entry.log_index}")
+        _logger.debug(f"Transparency log entry created with index: {entry._inner.log_index}")
 
         return Bundle._from_parts(cert, content, entry, signed_timestamp)