匈牙利 BBAN 验证

Posted 2023-02-22

【中文标题】匈牙利 BBAN 验证

【英文标题】：hungarian BBAN validation

【发布时间】：2017-03-09 23:53:43

【问题描述】：

谁能告诉我如何验证匈牙利 BBAN 帐号？ 在互联网上我只发现它是 24 个数字长度 并以格式

bbbs sssk cccc cccc cccc cccx
b = National bank code
s = Branch code
c = Account number
x = National check digit

但是如何计算 x = 国家校验位？ 我试图通过 97 删除最后一个字符和模余数，但它不起作用 （有效帐号的结果不是 1）

提前感谢您的帮助

【问题讨论】：

您可能需要联系 匈牙利银行协会，因为计算您要查找的校验位的算法因国家/地区而异，他们是最有能力为您提供指导的组织在这个话题中。你可以找到他们的联系方式here。

【参考方案1】：

我刚刚完成了匈牙利帐户验证功能。这是此功能的第一个版本，但运行良好。

public string sprawdzWegierskitempAccountNumber(string _accountNumberToCheck, bool _iban) //if iban is true then function result will be always IBAN (even if _accountNumberToCheck will be BBAN) string _accountNumberCorrected = _accountNumberToCheck.Replace(" ", ""); _accountNumberCorrected = _accountNumberCorrected.Replace("-", ""); _accountNumberCorrected = _accountNumberCorrected.Replace("//", ""); _accountNumberCorrected = _accountNumberCorrected.Replace("\", ""); string _accountNumberCorrectedFirst = _accountNumberCorrected; if (_accountNumberCorrected.Length == 16 || _accountNumberCorrected.Length == 24 || _accountNumberCorrected.Length == 28)

        if (_accountNumberCorrected.Length == 28) //IBAN Account number
        
            _accountNumberCorrected = _accountNumberCorrected.Substring(4, _accountNumberCorrected.Length - 4); //we don't need first four digits (HUxx)
        

        string digitToMultiply = "9731";
        int checkResult = 0;

        //checking first part of account number
        for (int i = 0; i <= 6; i++)
        
            checkResult = checkResult + int.Parse(_accountNumberCorrected.ToCharArray()[i].ToString()) * int.Parse(digitToMultiply.ToCharArray()[i % 4].ToString());
        
        checkResult = checkResult % 10;
        checkResult = 10 - checkResult;
        if (checkResult == 10)
        
            checkResult = 0;
        
        if (checkResult.ToString() != _accountNumberCorrected.ToCharArray()[7].ToString())
        
            throw new Exception("Wrong account number");
        
        else
        
            //if first part it's ok then checking second part of account number
            checkResult = 0;
            for (int i = 8; i <= _accountNumberCorrected.Length-2; i++)
            
                checkResult = checkResult + int.Parse(_accountNumberCorrected.ToCharArray()[i].ToString()) * int.Parse(digitToMultiply.ToCharArray()[i % 4].ToString());
            

            checkResult = checkResult % 10;
            checkResult = 10 - checkResult;
            if (checkResult == 10)
            
                checkResult = 0;
            
            if (checkResult.ToString() != _accountNumberCorrected.ToCharArray()[_accountNumberCorrected.Length-1].ToString())
            
                throw new Exception("Wrong account number");
            

        

        string tempAccountNumber = _accountNumberCorrected + "173000";

        var db = 0; var iban = 0;
        var maradek = 0;
        string resz = "", ibanstr = "", result = "";

        while (true)
        

            if (db == 0)
            
                resz = tempAccountNumber.Substring(0, 9);
                tempAccountNumber = tempAccountNumber.Substring(9, (tempAccountNumber.Length - 9));

            

            else
            

                resz = maradek.ToString();
                resz = resz + tempAccountNumber.Substring(0, (9 - db));
                tempAccountNumber = tempAccountNumber.Substring((9 - db), (tempAccountNumber.Length - 9 + db));

            

            maradek = int.Parse(resz) % 97;

            if (maradek == 0)
                db = 0;
            else
                if (maradek < 10)
                    db = 1;
                else
                    db = 2;

            if ((tempAccountNumber.Length + db) <= 9)
                break;
        

        if (maradek != 0)
        
            resz = maradek.ToString();
            resz = resz + tempAccountNumber;
        
        else
            resz = tempAccountNumber;

        maradek = int.Parse(resz) % 97; ;
        iban = 98 - maradek;
        if (iban < 10)
            ibanstr = "0" + iban.ToString();
        else ibanstr = iban.ToString();

        if (_accountNumberCorrected.Length == 16)
        
            _accountNumberCorrected = _accountNumberCorrected + "00000000";
            _accountNumberCorrectedFirst = _accountNumberCorrectedFirst + "00000000";
        

        if (_iban)
        
            result = "HU" + ibanstr + _accountNumberCorrected;
        
        else
        
            result = _accountNumberCorrectedFirst;
        

        return result;
    
    else
    
        throw new Exception("Wrong length of account number");