/// <summary>
/// 获取处理选项
/// </summary>
/// <param name="card"></param>
public void GPO(ICCard card)
{
StringBuilder body = new StringBuilder();
List <string> gpoList = new List <string>();
if (card.GPOL == null || card.GPOL.Count == 0)
{
throw new CardReadException("未读取到处理选项列表");
}
gpoList = card.GPOL.ToList();
gpoList.ForEach(pdo => body.Append(PublicStaticData.PDOL[pdo]));
body.Insert(0, (body.Length / 2).ToString("x2"));
body.Insert(0, "83");
body.Insert(0, (body.Length / 2).ToString("x2"));
APDUEntity GPO = new APDUEntity("80", "A8", "00", "00", body.ToString());
string result = CardReader.SendAPDU(GPO.ToString());
List <TLVEntity> tlvList = TLVHelper.ToTLVEntityList(result);
TLVEntity entity = null;
if (tlvList != null && tlvList.Count > 0)
{
entity = tlvList[0];
}
card.AIP = CodeConvert.ToHexString(entity.Value.Take(2).ToArray());//前两位是AIP
List <string> afl = new List <string>();
for (int i = 2; i < entity.Value.Length; i = i + 4)
{
afl.Add(CodeConvert.ToHexString(entity.Value.Take(i + 4).Skip(i).ToArray()));
}
card.AFL = afl;
}
/// <summary>
/// 获取应用密文
/// </summary>
/// <param name="card">卡片信息</param>
/// <returns></returns>
public void GENERATEARQC(ICCard card, string transactionType = TransactionType.Pay)
{
PublicStaticData.TransactionType = TransactionType.Pay;
Random random = new Random();
PublicStaticData.RadomData = CodeConvert.ToHexString(new byte[] { (byte)random.Next(256), (byte)random.Next(256), (byte)random.Next(256), (byte)random.Next(256) });
card.RadomData = PublicStaticData.RadomData;
StringBuilder cdol1Builder = new StringBuilder();
card.CDOL1.ToList().ForEach(cdo => cdol1Builder.Append(PublicStaticData.CDOL1[cdo]));
cdol1Builder.Insert(0, (cdol1Builder.Length / 2).ToString("x2"));
APDUEntity entity = new APDUEntity("80", "AE", "80", "00", cdol1Builder.ToString());
string arqc = CardReader.SendAPDU(entity.ToString());
List <TLVEntity> entityList = TLVHelper.ToTLVEntityList(arqc);
if (entityList.Count == 0)
{
throw new CardReadException("获取应用密文(ARQC)失败");
}
TLVEntity arqcEntity = entityList[0];
card.CID = arqcEntity.Value[0].ToString("x2"); //密文信息 L:1
card.ATC = CodeConvert.ToHexString(new byte[] { arqcEntity.Value[1], arqcEntity.Value[2] }); //ATC 应用交易计数器 L:2
card.AC = CodeConvert.ToHexString(arqcEntity.Value.Take(11).Skip(3).ToArray()); //AC应用密文 L:8
card.IssBankAppData = CodeConvert.ToHexString(arqcEntity.Value.Skip(11).ToArray()); //发卡行应用数据
}
/// <summary>
/// TLV报文打包
/// </summary>
/// <param name="buffer">字节数据</param>
/// <returns></returns>
public static List <TLVEntity> Construct(byte[] buffer)
{
List <TLVEntity> resultList = new List <TLVEntity>();
int currentIndex = 0;
while (currentIndex < buffer.Length)
{
TLVEntity entity = new TLVEntity();
//1. 根据Tag判断数据是否是嵌套的TLV
bool hasSubEntity = HasSubEntity(buffer, currentIndex);
#region Tag解析
entity.Tag = GetTag(buffer, currentIndex);
currentIndex += entity.Tag.Length;
#endregion
#region Length解析
entity.Length = GetLength(buffer, currentIndex);
currentIndex += entity.Length.Length;
#endregion
#region Value解析
int valueLength = GetValueLengthByLengthByteValue(entity.Length);
entity.Value = buffer.Take(currentIndex + valueLength).Skip(currentIndex).ToArray();
if (hasSubEntity) //判断是否是嵌套结构
{
entity.SubTLVEntity = Construct(entity.Value); //嵌套结构递归解析
}
currentIndex += entity.Value.Length;
#endregion
resultList.Add(entity);
}
return(resultList);
}
/// <summary>
/// 根据tag获取tlv的值
/// </summary>
/// <param name="entities"></param>
/// <param name="tag"></param>
/// <returns></returns>
public static TLVEntity GetValueByTag(List <TLVEntity> entities, string tag)
{
TLVEntity resultEntity = null;
var query = entities.SingleOrDefault(e => CodeConvert.ToHexString(e.Tag).ToUpper() == tag);
if (query == null)
{
foreach (var tlv in entities)
{
if (tlv.SubTLVEntity != null)
{
TLVEntity result = GetValueByTag(tlv.SubTLVEntity, tag);
if (result != null && result.Length.Length > 0)
{
return(result);
}
}
}
}
else
{
resultEntity = query;
}
return(resultEntity);
}
/// <summary>
/// 解析TLV
/// </summary>
/// <param name="list">
/// <returns></returns>
public static byte[] Parse(List <TLVEntity> list)
{
byte[] buffer = new byte[4096];
int currentIndex = 0;
int currentTLVIndex = 0;
int valueSize = 0;
while (currentTLVIndex < list.Count())
{
valueSize = 0;
TLVEntity entity = list[currentTLVIndex];
Array.Copy(entity.Tag, 0, buffer, currentIndex, entity.TagSize); //解析Tag
currentIndex += entity.TagSize;
for (int index = 0; index < entity.LengthSize; index++)
{
valueSize += entity.Length[index] << (index * 8); //计算Length域的长度
}
if (valueSize > 127)
{
buffer[currentIndex] = Convert.ToByte(0x80 | entity.LengthSize);
currentIndex += 1;
}
Array.Copy(entity.Length, 0, buffer, currentIndex, entity.LengthSize); //解析Length
currentIndex += entity.LengthSize;
//判断是否包含子嵌套TLV
if (entity.SubTLVEntity == null)
{
Array.Copy(entity.Value, 0, buffer, currentIndex, valueSize); //解析Value
currentIndex += valueSize;
}
else
{
byte[] tempBuffer = Parse(entity.SubTLVEntity);
Array.Copy(tempBuffer, 0, buffer, currentIndex, tempBuffer.Length); //解析子嵌套TLV
currentIndex += tempBuffer.Length;
}
currentTLVIndex++;
}
byte[] resultBuffer = new byte[currentIndex];
Array.Copy(buffer, 0, resultBuffer, 0, currentIndex);
return(resultBuffer);
}
/// <summary>
/// 发卡行外部认证
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public bool IssueBankAuthenticate(string data)
{
//支付成功获取发卡行返回的55域数据
byte[] part55Data = CodeConvert.HexStringToByteArray(data);
List <TLVEntity> tlvList = TLVPackage.Construct(part55Data);
TLVEntity entity = TLVHelper.GetValueByTag(tlvList, "91");//获取发卡行认证数据
if (entity != null)
{
APDUEntity apdu = new APDUEntity("00", "82", "00", "00", CodeConvert.ToHexString(entity.Length) + CodeConvert.ToHexString(entity.Value));
string result = CardReader.SendAPDU(apdu.ToString());
return(true);// result.Equals(StatusCode.Success) == result.Equals(StatusCode.Authenticated);
}
else
{
return(true);
}
}
