private void button4_Click(object sender, EventArgs e)
{
try
{
var N = int.Parse(this.textBox3.Text);
var eles = new ECElement[this.listBox3.Items.Count];
for (var i = 0; i < this.listBox3.Items.Count; i++)
{
eles[i] = this.listBox3.Items[i] as ECElement;
}
var bytes = ECSplit.JoinDataWithBFTN(eles, N);
var endpos = bytes.Length;
for (var i = 0; i < bytes.Length; i++)
{
if (bytes[i] == 0)
{
endpos = i;
break;
}
}
var base64str = System.Text.Encoding.UTF8.GetString(bytes, 0, endpos);
var srcbyte = Convert.FromBase64String(base64str);
var info = System.Text.Encoding.UTF8.GetString(srcbyte);
this.label2.Text = info;
}
catch (Exception err)
{
MessageBox.Show("join fail:" + err.ToString());
}
}
void AddElement(ECElement ele)
{
foreach (ECElement e in this.listBox3.Items)
{
if (e.index == ele.index)
{
return;
}
}
this.listBox3.Items.Add(ele);
}
public static ECElement[] SplitDataWithBFTN(byte[] srcdata, int N = 1)
{
var totallen = 3 * N + 1;
var checkecc = totallen - N;
List <byte[]> splitbytes = new List <byte[]>();
var blocksize = srcdata.Length / totallen;
if (srcdata.Length % totallen != 0)
{
blocksize++;
}
SplitBytes(srcdata, splitbytes, blocksize);
ECElement[] eles = new ECElement[totallen];
for (var i = 0; i < totallen; i++)
{
eles[i] = new ECElement();
eles[i].index = (byte)i;
eles[i].block = splitbytes[i];
eles[i].byteecc = new List <byte[]>();
for (var j = 0; j < blocksize; j++)
{
eles[i].byteecc.Add(null);
//break;
}
}
var data = new byte[totallen];
for (var x = 0; x < eles[0].block.Length; x++)
{
//fill data;
for (var i = 0; i < totallen; i++)
{
data[i] = eles[i].block[x];
}
var eccdata = ReedSolomon.ReedSolomonAlgorithm.Encode(data, checkecc);
for (var i = 0; i < totallen; i++)
{
//if (eles[i].byteecc[0] == null)
eles[i].byteecc[x] = eccdata;
}
}
return(eles);
}
private void button6_Click(object sender, EventArgs e)
{
try
{
var bytes = new byte[this.textBox4.Text.Length / 2];
for (var i = 0; i < bytes.Length; i++)
{
var sub = this.textBox4.Text.Substring(i * 2, 2);
bytes[i] = byte.Parse(sub, System.Globalization.NumberStyles.HexNumber);
}
var ele = new ECElement();
ele.FromBytes(bytes);
AddElement(ele);
}
catch
{
}
}
