Add original TrueCrypt 7.1a sources

src/Crypto/Twofish.h

@@ -0,0 +1,55 @@
+#ifndef TWOFISH_H
+#define TWOFISH_H
+
+#include "Common/Tcdefs.h"
+
+#if defined(__cplusplus)
+extern "C"
+{
+#endif
+
+#ifndef u4byte
+#define u4byte	unsigned __int32
+#endif
+#ifndef u1byte
+#define u1byte	unsigned char
+#endif
+
+#ifndef extract_byte
+#define extract_byte(x,n)   ((u1byte)((x) >> (8 * n)))
+#endif
+
+#ifndef rotl
+
+#ifdef _WIN32
+#include <stdlib.h>
+#pragma intrinsic(_lrotr,_lrotl)
+#define rotr(x,n) _lrotr(x,n)
+#define rotl(x,n) _lrotl(x,n)
+#else
+#define rotr(x,n) (((x)>>(n))|((x)<<(32-(n))))
+#define rotl(x,n) (((x)<<(n))|((x)>>(32-(n))))
+#endif
+
+#endif
+typedef struct
+{
+	u4byte l_key[40];
+	u4byte s_key[4];
+#if !defined (TC_MINIMIZE_CODE_SIZE) || defined (TC_WINDOWS_BOOT_TWOFISH)
+	u4byte mk_tab[4 * 256];
+#endif
+	u4byte k_len;
+} TwofishInstance;
+
+#define TWOFISH_KS		sizeof(TwofishInstance)
+
+u4byte * twofish_set_key(TwofishInstance *instance, const u4byte in_key[], const u4byte key_len);
+void twofish_encrypt(TwofishInstance *instance, const u4byte in_blk[4], u4byte out_blk[]);
+void twofish_decrypt(TwofishInstance *instance, const u4byte in_blk[4], u4byte out_blk[4]);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif // TWOFISH_H