public ASNNode[] getChilds()
{
ASNNode[] ch = new ASNNode[childs.Count];
for (int i = 0; i < childs.Count; i++)
{
ch[i] = (ASNNode)childs[i];
}
return(ch);
}
public static ArrayList parse(byte[] data)
{
ArrayList ret = new ArrayList();
bool reachedEnd = false;
int start = 0;
while (!reachedEnd)
{
ASNNode node = new ASNNode();
node.Type = data[start];
int len = Convert.ToInt32(data[start + 1]);
int offset = 1;
int length = 0;
if ((len & 0x80) == 0x80)
{
len = len - 0x80;
offset += 1 + len;
for (int i = 0; i < len; i++)
{
length *= 0x100;
length += Convert.ToInt32(data[start + 2 + i]);
}
}
else
{
offset += 1;
length = Convert.ToInt32(data[start + 1]);
}
byte[] tmp = new byte[length];
MemoryStream st = new MemoryStream();
st.Write(data, start + offset, length);
st.Position = 0;
st.Read(tmp, 0, length);
node.setValue(tmp);
if (tmp.Length > 0)
{
if (node.Type == AsnTag.SEQUENCE ||
node.Type == AsnTag.CONTEXT_SPECIFIC1 ||
node.Type == AsnTag.SET ||
node.Type == AsnTag.CONTEXT_SPECIFIC)
{
node.childs = ASNNode.parse(tmp);
}
}
ret.Add(node);
start += offset + tmp.Length;
if (start >= data.Length)
{
reachedEnd = true;
}
}
return(ret);
}
public byte[] get()
{
if (rawData != null)
{
return(rawData);
}
int innerLength = this.getLength(false);
byte[] len = ASNNode.getLengthBytes(innerLength);
if (childs.Count > 0)
{
MemoryStream data2 = new MemoryStream();
foreach (ASNNode child in childs)
{
byte[] childBytes = child.get();
data2.Write(childBytes, 0, childBytes.Length);
}
MemoryStream ret = new MemoryStream();
ret.WriteByte(Type);
ret.Write(len, 0, len.Length);
data = new byte[data2.Length];
data2.Position = 0;
data2.Read(data, 0, (int)data2.Length);
ret.Write(data, 0, (int)data2.Length);
byte[] ret1 = new byte[ret.Length];
ret.Position = 0;
ret.Read(ret1, 0, (int)ret1.Length);
return(ret1);
}
else
{
if (Type == AsnTag.UTF8_STRING)
{
int xx = 1;
}
MemoryStream ret = new MemoryStream();
ret.WriteByte(Type);
ret.Write(len, 0, len.Length);
if (data != null)
{
ret.Write(data, 0, (int)data.Length);
}
byte[] ret1 = new byte[ret.Length];
ret.Position = 0;
ret.Read(ret1, 0, (int)ret1.Length);
return(ret1);
}
}
public int getLength(bool includeHeader)
{
if (rawData != null)
{
return(rawData.Length);
}
int innerLength = 0;
int ret = 0;
if (data != null)
{
innerLength += data.Length;
}
foreach (ASNNode node in childs)
{
int l = node.getLength();
innerLength += l;
if (innerLength == 0x0000011d)
{
int xx = 1;
}
}
if (includeHeader)
{
ret += 1;
byte[] len = ASNNode.getLengthBytes(innerLength);
ret += len.Length;
}
ret += innerLength;
if (ret == 199)
{
int zz = 1;
}
return(ret);
}
public void AppendChild(ASNNode child)
{
childs.Add(child);
}