#define?BPOLY?0x1b?//!#define?BLOCKSIZE?16?//!
#define?KEY_COUNT?3

#if?KEY_COUNT?==?1
??#define?KEYBITS?128?//!#elif?KEY_COUNT?==?2
??#define?KEYBITS?192?//!#elif?KEY_COUNT?==?3
??#define?KEYBITS?256?//!#else
??#error?Use?1?2?or?3?keys!
#endif

#if?KEYBITS?==?128
??#define?ROUNDS?10?//!??#define?KEYLENGTH?16?//!#elif?KEYBITS?==?192
??#define?ROUNDS?12?//!??#define?KEYLENGTH?24?//!#elif?KEYBITS?==?256
??#define?ROUNDS?14?//!??#define?KEYLENGTH?32?//!#else
??#error?Key?must?be?128?192?or?256?bits!
#endif


#define?EXPANDED_KEY_SIZE?（BLOCKSIZE?*?（ROUNDS+1））?//!
unsigned?char?AES_Key_Table[32]?=
{
??0xd0?0x94?0x3f?0x8c?0x29?0x76?0x15?0xd8
??0x20?0x40?0xe3?0x27?0x45?0xd8?0x48?0xad
??0xea?0x8b?0x2a?0x73?0x16?0xe9?0xb0?0x49
??0x45?0xb3?0x39?0x28?0x0a?0xc3?0x28?0x3c
};

unsigned?char?block1[256];?//!unsigned?char?block2[256];?//!unsigned?char?tempbuf[256];

unsigned?char?*powTbl;?//!unsigned?char?*logTbl;?//!unsigned?char?*sBox;?//!unsigned?char?*sBoxInv;?//!unsigned?char?*expandedKey;?//!
void?CalcPowLog（unsigned?char?*powTbl?unsigned?char?*logTbl）
{
	unsigned?char?i?=?0;
	unsigned?char?t?=?1;
	
	do?{
		//?Use?0x03?as?root?for?exponentiation?and?logarithms.
		powTbl[i]?=?t;
		logTbl[t]?=?i;
		i++;
		
		//?Muliply?t?by?3?in?GF（2^8）.
		t?^=?（t?<	}while（?t?!=?1?）;?//?Cyclic?properties?ensure?that?i?	
	powTbl[255]?=?powTbl[0];?//?255?=?‘-0‘?254?=?-1?etc.
}

void?CalcSBox（?unsigned?char?*?sBox?）
{
	unsigned?char?i?rot;
	unsigned?char?temp;
	unsigned?char?result;
	
	//?Fill?all?entries?of?sBox[].
	i?=?0;
	do?{
		//Inverse?in?GF（2^8）.
		if（?i?>?0?）?
		{
			temp?=?powTbl[?255?-?logTbl[i]?];
		}?
		else?
		{
			temp?=?0;
		}
		
		//?Affine?transformation?in?GF（2）.
		result?=?temp?^?0x63;?//?Start?with?adding?a?vector?in?GF（2）.
		for（?rot?=?0;?rot?		{
			//?Rotate?left.
			temp?=?（temp<<1）?|?（temp>>7）;
			
			//?Add?rotated?byte?in?GF（2）.
			result?^=?temp;
		}
		
		//?Put?result?in?table.
		sBox[i]?=?result;
	}?while（?++i?!=?0?）;
}

void?CalcSBoxInv（?unsigned?char?*?sBox?unsigned?char?*?sBoxInv?）
{
	unsigned?char?i?=?0;
	unsigned?char?j?=?0;
	
	//?Iterate?through?all?elements?in?sBoxInv?using??i.
	do?{
	//?Search?through?sBox?using?j.
		do?{
			//?Check?if?current?j?is?the?inverse?of?current?i.
			if（?sBox[?j?]?==?i?）
			{
				//?If?s

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????11630??2012-04-12?20:55??MD5.C

?????文件???????4863??2012-04-12?21:31??RC6.C

?????文件????????979??2012-04-13?01:10??RSA.C

?????文件???????7720??2012-04-12?20:58??SHA1.C

?????文件???????7633??2012-04-12?20:55??SHA256.C

?????文件???????2055??2012-04-12?21:55??TEA.C

?????文件??????13233??2012-04-12?21:42??AES.c

?????文件??????12757??2012-04-12?21:37??DES.C

-----------?---------??----------?-----??----

????????????????60870????????????????????8