From bbbd09553b373b5f32f339186ea689132fde21ae Mon Sep 17 00:00:00 2001
From: weidai <weidai11@users.noreply.github.com>
Date: Sun, 15 Apr 2007 22:54:31 +0000
Subject: SSE2 optimizations

---
 salsa.h | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

(limited to 'salsa.h')

diff --git a/salsa.h b/salsa.h
index 8d6bedf2..176a1a3c 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;
-- 
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