PHP初记｜xxtea类

PHP小记｜xxtea类

xxtea可逆加密算法PHP实现：

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Class Xxtea {
	public function encrypt($s, $key) {
		return base64_encode(self :: xxtea_encrypt($s, $key));
	}
	public function decrypt($e, $key) {
		return self :: xxtea_decrypt(base64_decode($e), $key);
	}
	private function long2str($v, $w) {
		$len = count($v);
		$n = ($len -1)  $n))
				return false;
			$n = $m;
		}
		$s = array ();
		for ($i = 0; $i = 2147483648)
			$n -= 4294967296;
		while ($n > 2 & 3;
			for ($p = 0; $p > 5 & 0x07ffffff) ^ $y > 3 & 0x1fffffff) ^ $z > 5 & 0x07ffffff) ^ $y > 3 & 0x1fffffff) ^ $z > 2 & 3;
			for ($p = $n; $p > 0; $p--) {
				$z = $v[$p -1];
				$mx = self :: int32((($z >> 5 & 0x07ffffff) ^ $y > 3 & 0x1fffffff) ^ $z > 5 & 0x07ffffff) ^ $y > 3 & 0x1fffffff) ^ $z 
<p>?</p>
<p>使用方法：</p>
<p><strong>加密：</strong></p>
<p><strong>Xxtea::encrypt(明文字符串, 密钥字符串);</strong></p>
<p><strong>解密：</strong></p>
<p><strong>Xxtea::decrypt(密文字符串, 密钥字符串);</strong></p>
<p>?</p>
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