Merge pull request #476 from alex/opaque-the-sigalg

X509 sigalg is now opaque

2 files changed, 4 insertions, 4 deletions

diff --git a/setup.py b/setup.py
index 4643f71..d4c27ad 100755
--- a/setup.py
+++ b/setup.py
@@ -95,7 +95,7 @@ if __name__ == "__main__":
         package_dir={"": "src"},
         install_requires=[
             # Fix cryptographyMinimum in tox.ini when changing this!
-            "cryptography>=1.3",
+            "cryptography>=1.3.4",
             "six>=1.5.2"
         ],
     )
diff --git a/src/OpenSSL/crypto.py b/src/OpenSSL/crypto.py
index 7e05ca6..21bdadd 100644
--- a/src/OpenSSL/crypto.py
+++ b/src/OpenSSL/crypto.py
@@ -1083,8 +1083,8 @@ class X509(object):
 
         .. versionadded:: 0.13
         """
-        alg = self._x509.cert_info.signature.algorithm
-        nid = _lib.OBJ_obj2nid(alg)
+        algor = _lib.X509_get0_tbs_sigalg(self._x509)
+        nid = _lib.OBJ_obj2nid(algor.algorithm)
         if nid == _lib.NID_undef:
             raise ValueError("Undefined signature algorithm")
         return _ffi.string(_lib.OBJ_nid2ln(nid))
@@ -1787,7 +1787,7 @@ class Revoked(object):
             obj = _lib.X509_EXTENSION_get_object(ext)
             if _lib.OBJ_obj2nid(obj) == _lib.NID_crl_reason:
                 _lib.X509_EXTENSION_free(ext)
-                _lib.sk_X509_EXTENSION_delete(self._revoked.extensions, i)
+                _lib.X509_REVOKED_delete_ext(self._revoked, i)
                 break
 
     def set_reason(self, reason):