#include?“tea.h“
#include??//for?memcpymemset

using?namespace?std;

TEA::TEA（const?byte?*key?int?round?/*=?32*/?bool?isNetByte?/*=?false*/）
	:_round（round）
	_isNetByte（isNetByte）?{
		if?（key?!=?0）
			memcpy（_key?key?16）;
		else
			memset（_key?0?16）;
}

TEA::TEA（const?TEA?&rhs）
	:_round（rhs._round）
	_isNetByte（rhs._isNetByte）?{
		memcpy（_key?rhs._key?16）;
}

TEA&?TEA::operator=（const?TEA?&rhs）?{
	if?（&rhs?!=?this）?{
		_round?=?rhs._round;
		_isNetByte?=?rhs._isNetByte;
		memcpy（_key?rhs._key?16）;
	}
	return?*this;
}

void?TEA::encrypt（const?byte?*in?byte?*out）?{
	encrypt（（const?ulong*）in?（ulong*）out）;
}

void?TEA::decrypt（const?byte?*in?byte?*out）?{
	decrypt（（const?ulong*）in?（ulong*）out）;
}

void?TEA::encrypt（const?ulong?*in?ulong?*out）?{

	ulong?*k?=?（ulong*）_key;
	register?ulong?y?=?ntoh（in[0]）;
	register?ulong?z?=?ntoh（in[1]）;
	register?ulong?a?=?ntoh（k[0]）;
	register?ulong?b?=?ntoh（k[1]）;
	register?ulong?c?=?ntoh（k[2]）;
	register?ulong?d?=?ntoh（k[3]）;
	register?ulong?delta?=?0x9E3779B9;?/*?（sqrt（5）-1）/2*2^32?*/
	register?int?round?=?_round;
	register?ulong?sum?=?0;

	while?（round--）?{????/*?basic?cycle?start?*/
		sum?+=?delta;
		y?+=?（（z?<>?5）?+?b）;
		z?+=?（（y?<>?5）?+?d）;
	}????/*?end?cycle?*/
	out[0]?=?ntoh（y）;
	out[1]?=?ntoh（z）;
}

void?TEA::decrypt（const?ulong?*in?ulong?*out）?{

	ulong?*k?=?（ulong*）_key;
	register?ulong?y?=?ntoh（in[0]）;
	register?ulong?z?=?ntoh（in[1]）;
	register?ulong?a?=?ntoh（k[0]）;
	register?ulong?b?=?ntoh（k[1]）;
	register?ulong?c?=?ntoh（k[2]）;
	register?ulong?d?=?ntoh（k[3]）;
	register?ulong?delta?=?0x9E3779B9;?/*?（sqrt（5）-1）/2*2^32?*/
	register?int?round?=?_round;
	register?ulong?sum?=?0;

	if?（round?==?32）
		sum?=?0xC6EF3720;?/*?delta?<	else?if?（round?==?16）
		sum?=?0xE3779B90;?/*?delta?<	else
		sum?=?delta?<（logbase（2?round））;

	while?（round--）?{????/*?basic?cycle?start?*/
		z?-=?（（y?<>?5）?+?d）;
		y?-=?（（z?<>?5）?+?b）;
		sum?-=?delta;
	}????/*?end?cycle?*/
	out[0]?=?ntoh（y）;
	out[1]?=?ntoh（z）;
}

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

?????文件??????71680??2014-04-11?14:14??TEAcode\Debug\TEAcode.exe

?????文件?????522160??2014-04-11?14:14??TEAcode\Debug\TEAcode.ilk

?????文件?????814080??2014-04-11?14:14??TEAcode\Debug\TEAcode.pdb

?????文件???46137344??2014-04-11?14:14??TEAcode\ipch\teacode-5726293e\teacode-224582c1.ipch

?????文件???????2044??2014-04-11?14:14??TEAcode\TEAcode\Debug\cl.command.1.tlog

?????文件??????55286??2014-04-11?14:14??TEAcode\TEAcode\Debug\CL.read.1.tlog

?????文件???????1092??2014-04-11?14:14??TEAcode\TEAcode\Debug\CL.write.1.tlog

?????文件??????????2??2014-04-11?14:14??TEAcode\TEAcode\Debug\link-cvtres.read.1.tlog

?????文件??????????2??2014-04-11?14:14??TEAcode\TEAcode\Debug\link-cvtres.write.1.tlog

?????文件??????????2??2014-04-11?14:14??TEAcode\TEAcode\Debug\link.8080-cvtres.read.1.tlog

?????文件??????????2??2014-04-11?14:14??TEAcode\TEAcode\Debug\link.8080-cvtres.write.1.tlog

?????文件??????????2??2014-04-11?14:14??TEAcode\TEAcode\Debug\link.8080.read.1.tlog

?????文件??????????2??2014-04-11?14:14??TEAcode\TEAcode\Debug\link.8080.write.1.tlog

?????文件???????1754??2014-04-11?14:14??TEAcode\TEAcode\Debug\link.command.1.tlog

?????文件???????4040??2014-04-11?14:14??TEAcode\TEAcode\Debug\link.read.1.tlog

?????文件????????892??2014-04-11?14:14??TEAcode\TEAcode\Debug\link.write.1.tlog

?????文件????????374??2014-04-11?14:14??TEAcode\TEAcode\Debug\mt.command.1.tlog

?????文件????????402??2014-04-11?14:14??TEAcode\TEAcode\Debug\mt.read.1.tlog

?????文件????????298??2014-04-11?14:14??TEAcode\TEAcode\Debug\mt.write.1.tlog

?????文件????????508??2014-04-11?14:14??TEAcode\TEAcode\Debug\rc.command.1.tlog

?????文件????????374??2014-04-11?14:14??TEAcode\TEAcode\Debug\rc.read.1.tlog

?????文件????????278??2014-04-11?14:14??TEAcode\TEAcode\Debug\rc.write.1.tlog

?????文件??????53971??2014-04-11?14:12??TEAcode\TEAcode\Debug\tea.obj

?????文件????????406??2014-04-11?14:14??TEAcode\TEAcode\Debug\TEAcode.exe.embed.manifest

?????文件????????472??2014-04-11?14:14??TEAcode\TEAcode\Debug\TEAcode.exe.embed.manifest.res

?????文件????????381??2014-04-11?14:14??TEAcode\TEAcode\Debug\TEAcode.exe.intermediate.manifest

?????文件?????????55??2014-04-11?14:14??TEAcode\TEAcode\Debug\TEAcode.lastbuildstate

?????文件???????2926??2014-04-11?14:14??TEAcode\TEAcode\Debug\TEAcode.log

?????文件????????204??2014-04-11?14:12??TEAcode\TEAcode\Debug\TEAcode_manifest.rc

?????文件?????122926??2014-04-11?14:14??TEAcode\TEAcode\Debug\test.obj

............此處省略23個文件信息