SSE2 optimizations

git-svn-id: svn://svn.code.sf.net/p/cryptopp/code/trunk/c5@282 57ff6487-cd31-0410-9ec3-f628ee90f5f0

1 files changed, 7 insertions, 3 deletions

diff --git a/salsa.h b/salsa.h
index 8d6bedf..176a1a3 100755
--- a/salsa.h
+++ b/salsa.h
@@ -8,7 +8,7 @@
 NAMESPACE_BEGIN(CryptoPP)
 
 //! _
-struct Salsa20_Info : public VariableKeyLength<32, 16, 32, 16, SimpleKeyingInterface::STRUCTURED_IV, 8>
+struct Salsa20_Info : public VariableKeyLength<32, 16, 32, 16, SimpleKeyingInterface::UNIQUE_IV, 8>
 {
 	static const char *StaticAlgorithmName() {return "Salsa20";}
 };
@@ -22,13 +22,17 @@ protected:
 	void CipherResynchronize(byte *keystreamBuffer, const byte *IV);
 	bool IsRandomAccess() const {return true;}
 	void SeekToIteration(lword iterationCount);
+#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X64
+	unsigned int GetAlignment() const;
+	unsigned int GetOptimalBlockSize() const;
+#endif
 
 private:
+	FixedSizeAlignedSecBlock<word32, 16> m_state;
 	int m_rounds;
-	FixedSizeSecBlock<word32, 16> m_state;
 };
 
-//! Salsa20, variable rounds: 8, 12 or 20 (default 20)
+/// <a href="http://www.cryptolounge.org/wiki/Salsa20">Salsa20</a>, variable rounds: 8, 12 or 20 (default 20)
 struct Salsa20 : public Salsa20_Info, public SymmetricCipherDocumentation
 {
 	typedef SymmetricCipherFinal<ConcretePolicyHolder<Salsa20_Policy, AdditiveCipherTemplate<> >, Salsa20_Info> Encryption;