public static byte[] makeCrc16(byte[] ccc)
{
CRC16Util crc16 = new CRC16Util();
crc16.reset();
crc16.update(ccc);
byte[] test = intToByte(crc16.getCrcValue());
return(test);
}
public static string GetHashCodeFromFile(string fileName, FileCodeHashType hashtype)
{
string rst = string.Empty;
byte[] retVal = null;
try
{
switch (hashtype)
{
case FileCodeHashType.MD5:
case FileCodeHashType.SHA1:
using (FileStream file = new FileStream(fileName, System.IO.FileMode.Open))
{
switch (hashtype)
{
case FileCodeHashType.MD5:
MD5 md5 = new MD5CryptoServiceProvider();
retVal = md5.ComputeHash(file);
rst = GetCodeByByteArray(retVal);
break;
case FileCodeHashType.SHA1:
SHA1 sha1 = new SHA1CryptoServiceProvider();
retVal = sha1.ComputeHash(file);
rst = GetCodeByByteArray(retVal);
break;
}
file.Close();
}
break;
case FileCodeHashType.CRC16:
rst = CRC16Util.GetFileCRC16(fileName);
break;
case FileCodeHashType.CRC32:
rst = CRC32Util.GetFileCRC32(fileName);
break;
}
return(rst);
}
catch (Exception ex)
{
throw new Exception("GetMD5HashFromFile() fail,error:" + ex.Message);
}
}
public byte[] PackProtobuf(proto_util protoUtil)
{
if (msg == null)
{
msg = RecycleMS.CreateInstance();
if (data != null)
{
msg.Write(data, 0, data.Length);
}
}
mAskUniqueID = Convert.ToUInt16(protoUtil.AskUniqueID());
//Debug.LogError("mAskUniqueID:" + mAskUniqueID);
ushort packageLen = Convert.ToUInt16(NetConstant.cPackageHeadSize + msg.Length);
byte[] bytes = msg.ToArray();
RecycleMS packageCrc = RecycleMS.CreateInstance();
proto_util.writeUShort(packageCrc, mAskUniqueID);
proto_util.EncryptPackage(packageCrc, bytes);
byte[] crcBytes = packageCrc.ToArray();
packageCrc.Release();
RecycleMS package = RecycleMS.CreateInstance();
package.SetLength(packageLen);
proto_util.writeUShort(package, Convert.ToUInt16(msg.Length));
proto_util.writeUShort(package, this.mCMDID);
proto_util.writeUShort(package, mAskUniqueID);
proto_util.writeUShort(package, CRC16Util.ConCRC(crcBytes, crcBytes.Length));
proto_util.EncryptPackage(package, bytes);
byte[] packBytes = package.ToArray();
package.Release();//package在后面的代码不再使用，则释放
return(packBytes);
}
