public static string getKVCCheckFull(byte[] KVC)
{
string keyValue;
byte[] zeroArray = { 0, 0, 0, 0, 0, 0, 0, 0 };
byte[] dataOutput = new byte[8];
dataOutput = TripleDesOFB.OFBCrypt(zeroArray, KVC);
keyValue = BitConverter.ToString(dataOutput).Replace("-", "");
return(keyValue);
}
public static string encodeFieldEncrypt(string unEncryptedField, byte[] KVC)
{
if (KVC == null)
{
return(unEncryptedField);
}
string dataField = unEncryptedField.Substring(12, unEncryptedField.Length - (3 + 12));
byte[] dataArray = Encoding.Default.GetBytes(ConvertToHex(dataField));
byte[] dataArrayOutput = new byte[dataArray.Length]; // OFP = same length as input array
//HICAPS3Des.CallEncryptData(dataArray, dataArray.Length, KVC, dataArrayOutput);
dataArrayOutput = TripleDesOFB.OFBCrypt(dataArray, KVC);
return(unEncryptedField.Substring(0, 12) + BitConverter.ToString(dataArrayOutput).Replace("-", " ") + " 1C");
}
/// <summary>
/// Decrypt a field
/// </summary>
/// <param name="fieldValue"></param>
/// <param name="KVC"></param>
/// <returns></returns>
internal static string decodeAlphaEncrypt(string fieldValue, byte[] KVC)
{
if (string.IsNullOrEmpty(fieldValue))
{
return(fieldValue);
}
if (KVC == null)
{
return(fieldValue);
}
byte[] dataArray = Encoding.Default.GetBytes(fieldValue);
byte[] dataArrayOutput = new byte[dataArray.Length]; // OFP = same length as input array
dataArrayOutput = TripleDesOFB.OFBCrypt(dataArray, KVC);
return(Encoding.Default.GetString(dataArrayOutput));
}