1 files changed, 17 insertions, 0 deletions

diff --git a/src/mailman_pgp/pgp/inline.py b/src/mailman_pgp/pgp/inline.py
index cf92ffc..49f0a6e 100644
--- a/src/mailman_pgp/pgp/inline.py
+++ b/src/mailman_pgp/pgp/inline.py
@@ -18,11 +18,13 @@
 """Strict inline PGP message wrapper."""
 import copy
 from email.iterators import walk
+from email.mime.text import MIMEText
 
 from pgpy import PGPMessage
 from pgpy.constants import SymmetricKeyAlgorithm
 from public import public
 
+from mailman_pgp.utils.email import make_multipart
 from mailman_pgp.utils.pgp import key_from_blob, revoc_from_blob
 
 
@@ -211,6 +213,21 @@ class InlineWrapper:
                     continue
                 yield revoc
 
+    def attach_revocs(self, *key_revocations):
+        """
+        Attach a key revocation signature to the message.
+
+        :param key_revocations: A key revocation signature to attach.
+        :type key_revocations: pgpy.PGPSignature
+        :return: The message with the signature attached.
+        :rtype: mailman.email.message.Message
+        """
+        out = make_multipart(self.msg)
+        for key_revocation in key_revocations:
+            revoc_part = MIMEText(str(key_revocation))
+            out.attach(revoc_part)
+        return out
+
     def verify(self, key):
         """
         Verify the signatures of this message with key.