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Diffstat (limited to 'src/lib/modes/cipher_mode.h')
| -rw-r--r-- | src/lib/modes/cipher_mode.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/lib/modes/cipher_mode.h b/src/lib/modes/cipher_mode.h index 110053489..63821005d 100644 --- a/src/lib/modes/cipher_mode.h +++ b/src/lib/modes/cipher_mode.h @@ -24,6 +24,11 @@ class BOTAN_DLL Cipher_Mode : public Keyed_Transform * confidentiality. */ virtual bool authenticated() const { return false; } + + /** + * Return the size of the authentication tag used (in bytes) + */ + virtual size_t tag_size() const { return 0; } }; /** |