[omemo] Support 12bit IVs on httpupload files

96c3e17b · Philipp Hörist · 3bf7dddc · 96c3e17b
Commit 96c3e17b authored Aug 07, 2017 by Philipp Hörist
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omemo/file_decryption.py omemo/file_decryption.py +5 -0

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--- a/omemo/file_decryption.py
+++ b/omemo/file_decryption.py
@@ -134,6 +134,11 @@ class FileDecryption:
                file.iv = fragment[:16]
                if len(file.key) == 32 and len(file.iv) == 16:
                    return True
+
+                file.key = fragment[12:]
+                file.iv = fragment[:12]
+                if len(file.key) == 32 and len(file.iv) == 12:
+                    return True
            except:
                return False
        return False