PHP实现的QQ空间g_tk加密算法,g_tk加密算法
PHP实现的QQ空间g_tk加密算法,g_tk加密算法
本文实例讲述了PHP实现的QQ空间g_tk加密算法。分享给大家供大家参考。具体如下:
//G_tk计算 function getGTK($skey){ $hash = 5381; for($i=0;$i<strlen($skey);++$i){ $hash += ($hash << 5) + utf8_unicode($skey[$i]); } return $hash & 0x7fffffff; } function utf8_unicode($c) { switch(strlen($c)) { case 1: return ord($c); case 2: $n = (ord($c[0]) & 0x3f) << 6; $n += ord($c[1]) & 0x3f; return $n; case 3: $n = (ord($c[0]) & 0x1f) << 12; $n += (ord($c[1]) & 0x3f) << 6; $n += ord($c[2]) & 0x3f; return $n; case 4: $n = (ord($c[0]) & 0x0f) << 18; $n += (ord($c[1]) & 0x3f) << 12; $n += (ord($c[2]) & 0x3f) << 6; $n += ord($c[3]) & 0x3f; return $n; } }
希望本文所述对大家的php程序设计有所帮助。

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