diff --git a/inbox.py b/inbox.py
index a2cf0ba8a..d780530ff 100644
--- a/inbox.py
+++ b/inbox.py
@@ -17,7 +17,7 @@ from languages import understoodPostLanguage
 from like import updateLikesCollection
 from reaction import updateReactionCollection
 from reaction import validEmojiContent
-from utils import malformedCiphertext
+from utils import invalidCiphertext
 from utils import removeHtml
 from utils import fileLastModified
 from utils import hasObjectString
@@ -2259,7 +2259,7 @@ def _validPostContent(baseDir: str, nickname: str, domain: str,
                     print('REJECT: reply to post which does not ' +
                           'allow comments: ' + originalPostId)
                     return False
-    if malformedCiphertext(messageJson['object']['content']):
+    if invalidCiphertext(messageJson['object']['content']):
         print('REJECT: malformed ciphertext in content')
         return False
     if debug:
diff --git a/utils.py b/utils.py
index 5ac0351b6..7592bd1c1 100644
--- a/utils.py
+++ b/utils.py
@@ -2653,8 +2653,8 @@ def isPGPEncrypted(content: str) -> bool:
     return False
 
 
-def malformedCiphertext(content: str) -> bool:
-    """Returns true if the given content contains a malformed key
+def invalidCiphertext(content: str) -> bool:
+    """Returns true if the given content contains an invalid key
     """
     if '----BEGIN ' in content or '----END ' in content:
         if not containsPGPPublicKey(content) and \