/// <summary>
/// 发送文件
/// </summary>
/// <param name="param">续传断点</param>
private void SendFile(object param)
{
long breakpoint = Convert.ToInt64(param);
string srcFile = InvokeCtrl.GetCtrlText(txtFile);
string hashcode = FileUtils.GetHashCode(srcFile);
string filename = FileUtils.GetFileName(srcFile);
totalBytes = FileUtils.GetFileSize(srcFile);
if (totalBytes - breakpoint <= 0)
{
return;
}
//间歇时间
Thread.Sleep(interval);
MsgEntity msg = new MsgEntity();
msg.msgType = Constant.MSG_TYPE_CMD;
msg.msgBody = Constant.CMD_FILE_TRANSFER_REQ;
msg.args = new Dictionary <string, object>();
msg.args.Add("filename", filename); //文件名
msg.args.Add("hashcode", hashcode); //文件hash值
msg.args.Add("total", totalBytes); //文件大小
msg.args.Add("reseed", (breakpoint > 0)); //是否为续传
msg.args.Add("sendstate", ""); //传输状态（发送中/发送结束）
msg.args.Add("offset", 0); //传输流的偏移量
int size = buffersize * 1024;
if (breakpoint + size > totalBytes)
{
msg.args["sendstate"] = Constant.STATE_SEND_END;
timerSendState.Stop();
}
else
{
msg.args["sendstate"] = Constant.STATE_SEND_ON;
}
msg.args["offset"] = breakpoint;
byte[] extendData = FileUtils.ReadFromFile(srcFile, size, breakpoint);
byte[] sendbytes = FileUtils.GetSendBytes(msg, extendData);
SendByteData(sendbytes);
if (chkShowLog.Checked)
{
Log("发送文件流len=" + sendbytes.Length);
}
completeBytes += extendData.Length;
int finish = (int)Math.Ceiling(100.0 * completeBytes / totalBytes);
InvokeCtrl.UpdatePrgBarValue(prgBar1, finish, Color.FromKnownColor(KnownColor.Highlight), string.Format("发送完成{0} %", finish));
InvokeCtrl.UpdateCtrlText(lbFinish, FileUtils.getFinished(completeBytes, totalBytes));
}
private void crackDES()
{
do
{
if (counter > total)
{
timerCrackState.Stop();
InvokeCtrl.UpdateCtrlText(txtDesKey, desKey);
InvokeCtrl.UpdateCtrlText(txtCipherGen, cipherGen);
MessageBox.Show("任务结束，未找到密钥！");
InvokeCtrl.UpdateCtrlEnabled(btnCrack, true);
InvokeCtrl.UpdateCtrlEnabled(btnPause, false);
InvokeCtrl.UpdateCtrlEnabled(btnStop, false);
InvokeCtrl.UpdateCtrlEnabled(txtPlaintext, true);
InvokeCtrl.UpdateCtrlEnabled(txtCiphertext, true);
InvokeCtrl.UpdateCtrlEnabled(txtThreadNum, true);
LogHelper.Log(string.Format("任务结束，用时[{0}]，未找到密钥！", InvokeCtrl.GetCtrlText(lbSeconds)));
break;
}
/*
* 1、假设密钥由md5生成（即字符范围[0-9A-F]），那么8位的密钥范围可以看作0x00000000-0xFFFFFFFF
* 2、假设md5生成字符统一大写或小写，那么需要考虑切换大小写再加密
* 2、假设加密向量与密钥相同（否则计算量超出本算法范围。。）
*/
desKey = counter.ToString("x8");
counter++;
prgValue = Convert.ToInt32(10000 * counter / total);
//InvokeCtrl.UpdateCtrlText(lbCounter, counter.ToString());
//InvokeCtrl.UpdateCtrlText(txtDesKey, desKey);
cipherGen = DESCrypt.Encrypt(desKey, plaintext, desKey);
//InvokeCtrl.UpdateCtrlText(txtCipherGen, cipherGen);
if (cipherGen.Equals(ciphertext))
{
timerCrackState.Stop();
InvokeCtrl.UpdateCtrlText(txtDesKey, desKey);
InvokeCtrl.UpdateCtrlText(txtCipherGen, cipherGen);
MessageBox.Show("恭喜你，找到密钥：" + cipherGen);
InvokeCtrl.UpdateCtrlEnabled(btnCrack, true);
InvokeCtrl.UpdateCtrlEnabled(btnPause, false);
InvokeCtrl.UpdateCtrlEnabled(btnStop, false);
InvokeCtrl.UpdateCtrlEnabled(txtPlaintext, true);
InvokeCtrl.UpdateCtrlEnabled(txtCiphertext, true);
InvokeCtrl.UpdateCtrlEnabled(txtThreadNum, true);
LogHelper.Log(string.Format("在进度[{0}]处，用时[{1}]，找到密钥：{2}", InvokeCtrl.GetCtrlText(prgBar1), InvokeCtrl.GetCtrlText(lbSeconds), cipherGen));
break;
}
string desKeyUpcase = desKey.ToUpper();
if (desKeyUpcase.Equals(desKey))
{
continue;
}
desKey = desKeyUpcase;
//InvokeCtrl.UpdateCtrlText(txtDesKey, desKey);
cipherGen = DESCrypt.Encrypt(desKey, plaintext, desKey);
//InvokeCtrl.UpdateCtrlText(txtCipherGen, cipherGen);
if (cipherGen.Equals(ciphertext))
{
timerCrackState.Stop();
InvokeCtrl.UpdateCtrlText(txtDesKey, desKey);
InvokeCtrl.UpdateCtrlText(txtCipherGen, cipherGen);
MessageBox.Show("恭喜你，找到密钥：" + cipherGen);
InvokeCtrl.UpdateCtrlEnabled(btnCrack, true);
InvokeCtrl.UpdateCtrlEnabled(btnPause, false);
InvokeCtrl.UpdateCtrlEnabled(btnStop, false);
InvokeCtrl.UpdateCtrlEnabled(txtPlaintext, true);
InvokeCtrl.UpdateCtrlEnabled(txtCiphertext, true);
InvokeCtrl.UpdateCtrlEnabled(txtThreadNum, true);
LogHelper.Log(string.Format("在进度[{0}]处，用时[{1}]，找到密钥：{2}", InvokeCtrl.GetCtrlText(prgBar1), InvokeCtrl.GetCtrlText(lbSeconds), cipherGen));
break;
}
} while (true);
}
