IRShabaCodeAnalyzer helps you to validate Iranian inter bank identification code which name is Shaba Code

IRShabaCodeAnalyzer.cs

public static bool IsValid(string shabaCode)
        {
            if (string.IsNullOrWhiteSpace(shabaCode))
                return false;

            shabaCode = shabaCode.Trim();

            if (!shabaCode.ToLower().StartsWith("ir"))
                return false;

            if (shabaCode.Trim().Length != 26)
                return false;

            var firstPart = "1827" + shabaCode.Substring(2, 2);
            var secondPart = shabaCode.Substring(4);

            var convertedValue = secondPart + firstPart;


            try
            {
                BigInteger value = BigInteger.Parse(convertedValue);
                return value % 97 == 1;

            }
            catch (Exception)
            {

                return false;
            }
        }