我正在将DPM的md5更新为sha512，请为我提供帮助-
我没有工作。
查看代码更改-
为x_hp_hash生成指纹时-
来自md5-
if (function_exists('hash_hmac')) {
return hash_hmac("md5", $api_login_id . "^" . $fp_sequence . "^" .
$fp_timestamp . "^" . $amount . "^", $transaction_key);
}
return bin2hex(mhash(MHASH_MD5, $api_login_id . "^" . $fp_sequence . "^" . $fp_timestamp . "^" . $amount . "^", $transaction_key));
至sha512-
$signature_key = hex2bin($signature_key);
if (function_exists('hash_hmac')) {
return hash_hmac("sha512", $api_login_id . "^" . $fp_sequence . "^" .
$fp_timestamp . "^" . $amount . "^", $signature_key);
}
return bin2hex(mhash(MHASH_SHA512, $api_login_id . "^" . $fp_sequence . "^" …