Tune XTS for PowerPC

1 files changed, 3 insertions, 1 deletions

diff --git a/xts.h b/xts.h
index 8b4234fe..67d258ea 100644
--- a/xts.h
+++ b/xts.h
@@ -78,6 +78,7 @@ public:
         {return GetBlockCipher().BlockSize()+1;}

     unsigned int OptimalDataAlignment() const

         {return GetBlockCipher().OptimalDataAlignment();}

+    void ThrowIfInvalidBlockSize(size_t length);

 

     void SetKey(const byte *key, size_t length, const NameValuePairs &params = g_nullNameValuePairs);

     IV_Requirement IVRequirement() const {return UNIQUE_IV;}

@@ -106,13 +107,14 @@ protected:
     const BlockCipher& GetTweakCipher() const

         {return const_cast<XTS_ModeBase*>(this)->AccessTweakCipher();}

 

+    // Buffers are sized based on ParallelBlocks

     SecByteBlock m_xregister;

     SecByteBlock m_xworkspace;

 

     enum {ParallelBlocks = 4};

 };

 

-/// \brief XTS block cipher mode of operation implementation details

+/// \brief XTS block cipher mode of operation implementation

 /// \tparam CIPHER BlockCipher derived class or type

 /// \since Crypto++ 8.3

 template <class CIPHER>