37 lines
836 B
PHP
37 lines
836 B
PHP
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<?php
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namespace app\controller;
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class HMACMD5
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{
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public function HMAC($data)
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{
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$key = strToUtf8(config('hard.SigSecret'));
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$data = strToUtf8($data);
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$b = 64; // byte length for md5
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if (strlen($key) > $b) {
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$key = pack("H32", md5($key));
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}
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$key = str_pad($key, $b, chr(0x00));
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$ipad = str_pad('', $b, chr(0x36));
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$opad = str_pad('', $b, chr(0x5c));
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$k_ipad = $key ^ $ipad;
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$k_opad = $key ^ $opad;
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return strtoupper(md5($k_opad . pack("H32", md5($k_ipad . $data))));
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}
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}
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function strToUtf8($str)
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{
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$encode = mb_detect_encoding($str, array("ASCII", 'UTF-8', "GB2312", "GBK", 'BIG5'));
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if ($encode == 'UTF-8') {
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return $str;
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} else {
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return mb_convert_encoding($str, 'UTF-8', $encode);
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}
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}
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