晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : /home/akaindir/public_html/crm/libraries/adodb/session/crypt.inc.php
<?php
//	 Session Encryption by Ari Kuorikoski <ari.kuorikoski@finebyte.com>
class MD5Crypt{
		function keyED($txt,$encrypt_key)
		{
				$encrypt_key = md5($encrypt_key);
				$ctr=0;
				$tmp = "";
				for ($i=0;$i<strlen($txt);$i++){
						if ($ctr==strlen($encrypt_key)) $ctr=0;
						$tmp.= substr($txt,$i,1) ^ substr($encrypt_key,$ctr,1);
						$ctr++;
				}
				return $tmp;
		}

		function Encrypt($txt,$key)
		{
				srand((double)microtime()*1000000);
				$encrypt_key = md5(rand(0,32000));
				$ctr=0;
				$tmp = "";
				for ($i=0;$i<strlen($txt);$i++)
				{
				if ($ctr==strlen($encrypt_key)) $ctr=0;
				$tmp.= substr($encrypt_key,$ctr,1) .
				(substr($txt,$i,1) ^ substr($encrypt_key,$ctr,1));
				$ctr++;
				}
				return base64_encode($this->keyED($tmp,$key));
		}

		function Decrypt($txt,$key)
		{
				$txt = $this->keyED(base64_decode($txt),$key);
				$tmp = "";
				for ($i=0;$i<strlen($txt);$i++){
						$md5 = substr($txt,$i,1);
						$i++;
						$tmp.= (substr($txt,$i,1) ^ $md5);
				}
				return $tmp;
		}

		function RandPass()
		{
				$randomPassword = "";
				srand((double)microtime()*1000000);
				for($i=0;$i<8;$i++)
				{
						$randnumber = rand(48,120);

						while (($randnumber >= 58 && $randnumber <= 64) || ($randnumber >= 91 && $randnumber <= 96))
						{
								$randnumber = rand(48,120);
						}

						$randomPassword .= chr($randnumber);
				}
				return $randomPassword;
		}

}


class SHA1Crypt{
		function keyED($txt,$encrypt_key)
		{

				$encrypt_key = sha1($encrypt_key);
				$ctr=0;
				$tmp = "";

				for ($i=0;$i<strlen($txt);$i++){
						if ($ctr==strlen($encrypt_key)) $ctr=0;
						$tmp.= substr($txt,$i,1) ^ substr($encrypt_key,$ctr,1);
						$ctr++;
				}
				return $tmp;

		}

		function Encrypt($txt,$key)
		{

				srand((double)microtime()*1000000);
				$encrypt_key = sha1(rand(0,32000));
				$ctr=0;
				$tmp = "";

				for ($i=0;$i<strlen($txt);$i++)

				{

				if ($ctr==strlen($encrypt_key)) $ctr=0;

				$tmp.= substr($encrypt_key,$ctr,1) .

				(substr($txt,$i,1) ^ substr($encrypt_key,$ctr,1));

				$ctr++;

				}

				return base64_encode($this->keyED($tmp,$key));

		}



		function Decrypt($txt,$key)
		{

				$txt = $this->keyED(base64_decode($txt),$key);

				$tmp = "";

				for ($i=0;$i<strlen($txt);$i++){

						$sha1 = substr($txt,$i,1);

						$i++;

						$tmp.= (substr($txt,$i,1) ^ $sha1);

				}

				return $tmp;
		}



		function RandPass()
		{
				$randomPassword = "";
				srand((double)microtime()*1000000);

				for($i=0;$i<8;$i++)
				{

						$randnumber = rand(48,120);

						while (($randnumber >= 58 && $randnumber <= 64) || ($randnumber >= 91 && $randnumber <= 96))
						{
								$randnumber = rand(48,120);
						}

						$randomPassword .= chr($randnumber);
				}

				return $randomPassword;

		}



}

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