1 files changed, 7 insertions, 7 deletions
diff --git a/src/lib/stream/ofb/ofb.h b/src/lib/stream/ofb/ofb.h
index 9d4fd882f..0d08dac0a 100644
--- a/src/lib/stream/ofb/ofb.h
+++ b/src/lib/stream/ofb/ofb.h
@@ -10,6 +10,7 @@
 
 #include <botan/stream_cipher.h>
 #include <botan/block_cipher.h>
+#include <memory>
 
 namespace Botan {
 
@@ -24,17 +25,17 @@ class BOTAN_DLL OFB : public StreamCipher
       void set_iv(const byte iv[], size_t iv_len);
 
       bool valid_iv_length(size_t iv_len) const
-         { return (iv_len <= permutation->block_size()); }
+         { return (iv_len <= m_cipher->block_size()); }
 
       Key_Length_Specification key_spec() const
          {
-         return permutation->key_spec();
+         return m_cipher->key_spec();
          }
 
       std::string name() const;
 
       OFB* clone() const
-         { return new OFB(permutation->clone()); }
+         { return new OFB(m_cipher->clone()); }
 
       void clear();
 
@@ -42,13 +43,12 @@ class BOTAN_DLL OFB : public StreamCipher
       * @param cipher the underlying block cipher to use
       */
       OFB(BlockCipher* cipher);
-      ~OFB();
    private:
       void key_schedule(const byte key[], size_t key_len);
 
-      BlockCipher* permutation;
-      secure_vector<byte> buffer;
-      size_t position;
+      std::unique_ptr<BlockCipher> m_cipher;
+      secure_vector<byte> m_buffer;
+      size_t m_buf_pos;
    };
 
 }