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1 files changed, 7 insertions, 0 deletions

diff --git a/src/engine/def_engine/default_engine.h b/src/engine/def_engine/default_engine.h
index f7e6d9746..0d864e514 100644
--- a/src/engine/def_engine/default_engine.h
+++ b/src/engine/def_engine/default_engine.h
@@ -51,6 +51,13 @@ class Default_Engine : public Engine
                                           Algorithm_Factory&) const;
    };
 
+/**
+* Create a cipher mode filter object
+* @param block_cipher a block cipher object
+* @param direction are we encrypting or decrypting?
+* @param mode the name of the cipher mode to use
+* @param padding the mode padding to use (only used for ECB, CBC)
+*/
 Keyed_Filter* get_cipher_mode(const BlockCipher* block_cipher,
                               Cipher_Dir direction,
                               const std::string& mode,