php 用户验证 base64验证方法
发布时间：2022-07-28 10:14:03 所属栏目：PHP教程 来源：互联网
导读：function dsetcookie($var, $value, $life = 0, $prefix = 1) { global $cookiedomain, $cookiepath, $addtime, $_server; setcookie($var, $value,$life ? $addtime + $life : 0, $cookiepath,$cookiedomain, $_server[server_port] == 443 ? 1 : 0); } fun
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function dsetcookie($var, $value, $life = 0, $prefix = 1) { global $cookiedomain, $cookiepath, $addtime, $_server; setcookie($var, $value,$life ? $addtime + $life : 0, $cookiepath,$cookiedomain, $_server['server_port'] == 443 ? 1 : 0); } function authcode($string, $operation = 'decode', $key = '', $expiry = 0) { global $webaddr; $auth_key=md5($webaddr); $ckey_length = 4; $key = md5($key ? $key : $auth_key); $keya = md5(substr($key, 0, 16)); $keyb = md5(substr($key, 16, 16)); $keyc = $ckey_length ? ($operation == 'decode' ? substr($string, 0, $ckey_length): substr(md5(microtime()), -$ckey_length)) : ''; $cryptkey = $keya.md5($keya.$keyc); $key_length = strlen($cryptkey); $string = $operation == 'decode' ? base64_decode(substr($string, $ckey_length)) : sprintf('%010d', $expiry ? $expiry + time() : 0).substr(md5($string.$keyb), 0, 16).$string; $string_length = strlen($string); $result = ''; $box = range(0, 255); $rndkey = array(); for($i = 0; $i <= 255; $i++) { $rndkey[$i] = ord($cryptkey[$i % $key_length]); } for($j = $i = 0; $i < 256; $i++) { $j = ($j + $box[$i] + $rndkey[$i]) % 256; $tmp = $box[$i]; $box[$i] = $box[$j]; $box[$j] = $tmp; } for($a = $j = $i = 0; $i < $string_length; $i++) { $a = ($a + 1) % 256; $j = ($j + $box[$a]) % 256; $tmp = $box[$a]; $box[$a] = $box[$j]; $box[$j] = $tmp; $result .= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256])); } if($operation == 'decode') { if((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26).$keyb), 0, 16)) {//开源代码phpfensi.com return substr($result, 26); } else { return ''; } } else { return $keyc.str_replace('=', '', base64_encode($result)); } } （编辑：梅州站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
