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-rw-r--r--src/lib/block/cast/cast128.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/lib/block/cast/cast128.h b/src/lib/block/cast/cast128.h
index 491dd56f2..2782e96b9 100644
--- a/src/lib/block/cast/cast128.h
+++ b/src/lib/block/cast/cast128.h
@@ -15,7 +15,7 @@ namespace Botan {
/**
* CAST-128
*/
-class BOTAN_DLL CAST_128 : public Block_Cipher_Fixed_Params<8, 11, 16>
+class BOTAN_DLL CAST_128 final : public Block_Cipher_Fixed_Params<8, 11, 16>
{
public:
void encrypt_n(const byte in[], byte out[], size_t blocks) const override;