From 5fa8124f5156963e798f5cffa812cb9910e4e8de Mon Sep 17 00:00:00 2001
From: weidai <weidai@57ff6487-cd31-0410-9ec3-f628ee90f5f0>
Date: Thu, 10 Jul 2003 04:34:23 +0000
Subject: merge in 5.0.4 changes (exclude DES and SHA-2 from DLL), attempt
 (failed) to build DLL with GCC

git-svn-id: svn://svn.code.sf.net/p/cryptopp/code/trunk/c5@90 57ff6487-cd31-0410-9ec3-f628ee90f5f0
---
 des.h | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

(limited to 'des.h')

diff --git a/des.h b/des.h
index a6c5672..e39b161 100644
--- a/des.h
+++ b/des.h
@@ -9,9 +9,22 @@
 
 NAMESPACE_BEGIN(CryptoPP)
 
+class CRYPTOPP_DLL RawDES
+{
+public:
+	void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length = 8);
+	void RawProcessBlock(word32 &l, word32 &r) const;
+
+protected:
+	static const word32 Spbox[8][64];
+
+	FixedSizeSecBlock<word32, 32> k;
+};
+
 struct DES_Info : public FixedBlockSize<8>, public FixedKeyLength<8>
 {
-	CRYPTOPP_DLL static const char * StaticAlgorithmName() {return "DES";}
+	// disable DES in DLL version by not exporting this function
+	static const char * StaticAlgorithmName() {return "DES";}
 };
 
 /// <a href="http://www.weidai.com/scan-mirror/cs.html#DES">DES</a>
@@ -21,19 +34,10 @@ struct DES_Info : public FixedBlockSize<8>, public FixedKeyLength<8>
 	check or correct the parity bits if you wish. */
 class DES : public DES_Info, public BlockCipherDocumentation
 {
-	class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<DES_Info>
+	class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<DES_Info>, public RawDES
 	{
 	public:
-		void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length = 8);
 		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
-
-		// exposed for faster Triple-DES
-		void RawProcessBlock(word32 &l, word32 &r) const;
-
-	protected:
-		static const word32 Spbox[8][64];
-
-		FixedSizeSecBlock<word32, 32> k;
 	};
 
 public:
@@ -61,7 +65,7 @@ class DES_EDE2 : public DES_EDE2_Info, public BlockCipherDocumentation
 		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
 
 	protected:
-		DES::Encryption m_des1, m_des2;
+		RawDES m_des1, m_des2;
 	};
 
 public:
@@ -84,7 +88,7 @@ class DES_EDE3 : public DES_EDE3_Info, public BlockCipherDocumentation
 		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
 
 	protected:
-		DES::Encryption m_des1, m_des2, m_des3;
+		RawDES m_des1, m_des2, m_des3;
 	};
 
 public:
-- 
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