begin of thinksaas 3.68

Signed-off-by: kevin <kevin@lmve.net>
2023-06-22 13:33:25 +08:00
commit 963ec1b2ea
2746 changed files with 331806 additions and 0 deletions
@@ -0,0 +1,127 @@
+<?php 
+defined('IN_TS') or die('Access Denied.');
+//加密解密函数
+class  crypt{ 
+
+	protected $key = "";    //公钥 
+
+	private function keyED($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 $tmp; 
+	} 
+
+	public function encrypt($txt,$key="") { 
+		if(empty($key)){ 
+			$key=$this->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 $this->SetToHexString($this->keyED($tmp,$key)); 
+	} 
+
+	public function decrypt($txt,$key="") { 
+		if(empty($key)){ 
+			$key=$this->key; 
+		} 
+
+		$txt = $this->UnsetFromHexString($txt);
+		
+		$txt = $this->keyED($txt,$key); 
+		$tmp = ""; 
+		for ($i=0;$i<strlen($txt);$i++) { 
+			$md5 = substr($txt,$i,1); 
+			$i++; 
+			$tmp.= (substr($txt,$i,1) ^ $md5); 
+		} 
+		return $tmp; 
+	} 
+
+	public function setKey($key) { 
+		if(empty($key)){ 
+			return null; 
+		} 
+		$this->key=$key; 
+	} 
+
+	public function getKey() { 
+		return $this->key; 
+	} 
+	
+	
+	
+	//////////////////////////此处一下转16进制
+	public function SingleDecToHex($dec)
+	{
+		$tmp="";
+		$dec=$dec%16;
+		if($dec<10)
+			return $tmp.$dec;
+		$arr=array("a","b","c","d","e","f");
+		return $tmp.$arr[$dec-10];
+	}
+	public function SingleHexToDec($hex)
+	{
+		$v=ord($hex);
+		if(47<$v&&$v<58)
+			return $v-48;
+		if(96<$v&&$v<103)
+			return $v-87;
+	}
+	public function SetToHexString($str)
+	{
+		if(!$str)return false;
+		$tmp="";
+		for($i=0;$i<strlen($str);$i++)
+		{
+			$ord=ord($str[$i]);
+			$tmp.=$this->SingleDecToHex(($ord-$ord%16)/16);
+			$tmp.=$this->SingleDecToHex($ord%16);
+		}
+		return $tmp;
+	}
+	public function UnsetFromHexString($str)
+	{
+		if(!$str)return false;
+		$tmp="";
+		for($i=0;$i<strlen($str);$i+=2)
+		{
+			$tmp.=chr($this->SingleHexToDec(substr($str,$i,1))*16+$this->SingleHexToDec(substr($str,$i+1,1)));
+		}
+		return $tmp;
+	} 
+	
+/*
+echo SetToHexString("hello,大家好123");
+echo "<hr>";
+echo UnsetFromHexString(SetToHexString("hello,大家好123"));
+*/
+	
+
+} 
+
+
+
+/*
+$crypt= new crypt(); 
+$enc_text = $crypt->encrypt('123456','wwwthinksaascn2012'); 
+$dec_text = $crypt->decrypt($enc_text,'wwwthinksaascn2012'); 
+*/