From 5cad605559f973f2ce7d5ede1e6b67151f8e1d51 Mon Sep 17 00:00:00 2001
From: weidai <weidai11@users.noreply.github.com>
Date: Mon, 16 Apr 2007 00:21:07 +0000
Subject: optimizations

---
 seal.cpp | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

(limited to 'seal.cpp')

diff --git a/seal.cpp b/seal.cpp
index f240b50a..196965f8 100644
--- a/seal.cpp
+++ b/seal.cpp
@@ -71,7 +71,7 @@ void SEAL_Policy<B>::CipherSetKey(const NameValuePairs &params, const byte *key,
 template <class B>
 void SEAL_Policy<B>::CipherResynchronize(byte *keystreamBuffer, const byte *IV)
 {
-	m_outsideCounter = IV ? UnalignedGetWord<word32>(BIG_ENDIAN_ORDER, IV) : 0;
+	m_outsideCounter = IV ? GetWord<word32>(false, BIG_ENDIAN_ORDER, IV) : 0;
 	m_startCount = m_outsideCounter;
 	m_insideCounter = 0;
 }
@@ -86,7 +86,6 @@ void SEAL_Policy<B>::SeekToIteration(lword iterationCount)
 template <class B>
 void SEAL_Policy<B>::OperateKeystream(KeystreamOperation operation, byte *output, const byte *input, size_t iterationCount)
 {
-	KeystreamOutput<B> keystreamOutput(operation, output, input);
 	word32 a, b, c, d, n1, n2, n3, n4;
 	unsigned int p, q;
 
@@ -175,10 +174,13 @@ void SEAL_Policy<B>::OperateKeystream(KeystreamOperation operation, byte *output
 			d = rotrFixed(d, 9U);
 			a += Ttab(q);
 
-			keystreamOutput	(b + m_S[4*i+0])
-							(c ^ m_S[4*i+1])
-							(d + m_S[4*i+2])
-							(a ^ m_S[4*i+3]);
+#define SEAL_OUTPUT(x)	\
+	CRYPTOPP_KEYSTREAM_OUTPUT_WORD(x, B::ToEnum(), 0, b + m_S[4*i+0]);\
+	CRYPTOPP_KEYSTREAM_OUTPUT_WORD(x, B::ToEnum(), 1, c ^ m_S[4*i+1]);\
+	CRYPTOPP_KEYSTREAM_OUTPUT_WORD(x, B::ToEnum(), 2, d + m_S[4*i+2]);\
+	CRYPTOPP_KEYSTREAM_OUTPUT_WORD(x, B::ToEnum(), 3, a ^ m_S[4*i+3]);
+
+			CRYPTOPP_KEYSTREAM_OUTPUT_SWITCH(SEAL_OUTPUT, 4*4);
 
 			if (i & 1)
 			{
-- 
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