/// <summary>
/// Retrieve the node description.
/// </summary>
/// <param name="pureHexMode">true:Return hex string only;
/// false:Convert to more readable string depending on the node tag.</param>
/// <returns>string</returns>
public string GetDataStr(bool pureHexMode)
{
const int lineLen = 32;
string dataStr = "";
if (pureHexMode)
{
dataStr = Asn1Util.FormatString(Asn1Util.ToHexString(data), lineLen, 2);
}
else
{
switch (tag)
{
case Asn1Tag.BIT_STRING:
dataStr = Asn1Util.FormatString(Asn1Util.ToHexString(data), lineLen, 2);
break;
case Asn1Tag.OBJECT_IDENTIFIER:
Oid xoid = new Oid();
dataStr = xoid.Decode(new MemoryStream(data));
break;
case Asn1Tag.RELATIVE_OID:
RelativeOid roid = new RelativeOid();
dataStr = roid.Decode(new MemoryStream(data));
break;
case Asn1Tag.PRINTABLE_STRING:
case Asn1Tag.IA5_STRING:
case Asn1Tag.UNIVERSAL_STRING:
case Asn1Tag.VISIBLE_STRING:
case Asn1Tag.NUMERIC_STRING:
case Asn1Tag.UTC_TIME:
case Asn1Tag.BMPSTRING:
case Asn1Tag.GENERAL_STRING:
case Asn1Tag.GENERALIZED_TIME:
dataStr = Asn1Util.BytesToString(data);
break;
case Asn1Tag.UTF8_STRING:
UTF8Encoding utf8 = new UTF8Encoding();
dataStr = utf8.GetString(data);
break;
case Asn1Tag.INTEGER:
dataStr = Asn1Util.FormatString(Asn1Util.ToHexString(data), lineLen, 2);
break;
default:
if ((tag & Asn1Tag.TAG_MASK) == 6) // Visible string for certificate
{
dataStr = Asn1Util.BytesToString(data);
}
else
{
dataStr = Asn1Util.FormatString(Asn1Util.ToHexString(data), lineLen, 2);
}
break;
};
}
return dataStr;
}
/// <summary>
/// Get node label string.
/// </summary>
/// <param name="mask">
/// <code>
/// SHOW_OFFSET
/// SHOW_DATA
/// USE_HEX_OFFSET
/// SHOW_TAG_NUMBER
/// SHOW_PATH</code>
/// </param>
/// <returns>string</returns>
public string GetLabel(uint mask)
{
string nodeStr = "";
string dataStr = "";
string offsetStr = "";
if ((mask & TagTextMask.USE_HEX_OFFSET) != 0)
{
if ((mask & TagTextMask.SHOW_TAG_NUMBER) != 0)
offsetStr = String.Format("(0x{0:X2},0x{1:X6},0x{2:X4})", tag, dataOffset, dataLength);
else
offsetStr = String.Format("(0x{0:X6},0x{1:X4})", dataOffset, dataLength);
}
else
{
if ((mask & TagTextMask.SHOW_TAG_NUMBER) != 0)
offsetStr = String.Format("({0},{1},{2})", tag, dataOffset, dataLength);
else
offsetStr = String.Format("({0},{1})", dataOffset, dataLength);
}
string oid, oidName;
switch (tag)
{
case Asn1Tag.BIT_STRING:
if ((mask & TagTextMask.SHOW_OFFSET) != 0)
{
nodeStr += offsetStr;
}
nodeStr += " " + TagName + " UnusedBits: " + unusedBits.ToString();
if ((mask & TagTextMask.SHOW_DATA) != 0)
{
dataStr = Asn1Util.ToHexString(data);
nodeStr += ((dataStr.Length>0) ? " : '" + dataStr + "'" : "");
}
break;
case Asn1Tag.OBJECT_IDENTIFIER:
Oid xoid = new Oid();
oid = xoid.Decode(data);
oidName = xoid.GetOidName(oid);
if ((mask & TagTextMask.SHOW_OFFSET) != 0)
{
nodeStr += offsetStr;
}
nodeStr += " " + TagName;
nodeStr += " : " + oidName;
if ((mask & TagTextMask.SHOW_DATA) != 0)
{
nodeStr += ((oid.Length>0) ? " : '" + oid + "'" : "");
}
break;
case Asn1Tag.RELATIVE_OID:
RelativeOid roid = new RelativeOid();
oid = roid.Decode(data);
oidName = "";
if ((mask & TagTextMask.SHOW_OFFSET) != 0)
{
nodeStr += offsetStr;
}
nodeStr += " " + TagName;
nodeStr += " : " + oidName;
if ((mask & TagTextMask.SHOW_DATA) != 0)
{
nodeStr += ((oid.Length>0) ? " : '" + oid + "'" : "");
}
break;
case Asn1Tag.PRINTABLE_STRING:
case Asn1Tag.IA5_STRING:
case Asn1Tag.UNIVERSAL_STRING:
case Asn1Tag.VISIBLE_STRING:
case Asn1Tag.NUMERIC_STRING:
case Asn1Tag.UTC_TIME:
case Asn1Tag.UTF8_STRING:
case Asn1Tag.BMPSTRING:
case Asn1Tag.GENERAL_STRING:
case Asn1Tag.GENERALIZED_TIME:
if ((mask & TagTextMask.SHOW_OFFSET) != 0)
{
nodeStr += offsetStr;
}
nodeStr += " " + TagName;
if ((mask & TagTextMask.SHOW_DATA) != 0)
{
if ( tag == Asn1Tag.UTF8_STRING )
{
UTF8Encoding unicode = new UTF8Encoding();
dataStr = unicode.GetString(data);
}
else
{
dataStr = Asn1Util.BytesToString(data);
}
nodeStr += ((dataStr.Length>0) ? " : '" + dataStr + "'" : "");
}
break;
case Asn1Tag.INTEGER:
if ((mask & TagTextMask.SHOW_OFFSET) != 0)
{
nodeStr += offsetStr;
}
nodeStr += " " + TagName;
if ((mask & TagTextMask.SHOW_DATA) != 0)
{
if (data != null && dataLength < 8)
{
dataStr = Asn1Util.BytesToLong(data).ToString();
}
else
{
dataStr = Asn1Util.ToHexString(data);
}
nodeStr += ((dataStr.Length>0) ? " : '" + dataStr + "'" : "");
}
break;
default:
if ((mask & TagTextMask.SHOW_OFFSET) != 0)
{
nodeStr += offsetStr;
}
nodeStr += " " + TagName;
if ((mask & TagTextMask.SHOW_DATA) != 0)
{
if ((tag & Asn1Tag.TAG_MASK) == 6) // Visible string for certificate
{
dataStr = Asn1Util.BytesToString(data);
}
else
{
dataStr = Asn1Util.ToHexString(data);
}
nodeStr += ((dataStr.Length>0) ? " : '" + dataStr + "'" : "");
}
break;
};
if ((mask & TagTextMask.SHOW_PATH) != 0)
{
nodeStr = "(" + path + ") " + nodeStr;
}
return nodeStr;
}
/// <summary>
/// Get the node and all the descendents text description.
/// </summary>
/// <param name="startNode">starting node.</param>
/// <param name="lineLen">line length.</param>
/// <returns></returns>
public string GetText(Asn1Node startNode, int lineLen)
{
string nodeStr = "";
string baseLine = "";
string dataStr = "";
const string lStr = " | | | ";
string oid, oidName;
switch (tag)
{
case Asn1Tag.BIT_STRING:
baseLine =
String.Format("{0,6}|{1,6}|{2,7}|{3} {4} UnusedBits:{5} : ",
dataOffset,
dataLength,
lengthFieldBytes,
GetIndentStr(startNode),
TagName,
unusedBits
);
dataStr = Asn1Util.ToHexString(data);
if (baseLine.Length + dataStr.Length < lineLen)
{
if (dataStr.Length<1)
{
nodeStr += baseLine + "\r\n";
}
else
{
nodeStr += baseLine + "'" + dataStr + "'\r\n";
}
}
else
{
nodeStr += baseLine + FormatLineHexString(
lStr,
GetIndentStr(startNode).Length,
lineLen,
dataStr + "\r\n"
);
}
break;
case Asn1Tag.OBJECT_IDENTIFIER:
Oid xoid = new Oid();
oid = xoid.Decode(new MemoryStream(data));
oidName = xoid.GetOidName(oid);
nodeStr += String.Format("{0,6}|{1,6}|{2,7}|{3} {4} : {5} [{6}]\r\n",
dataOffset,
dataLength,
lengthFieldBytes,
GetIndentStr(startNode),
TagName,
oidName,
oid
);
break;
case Asn1Tag.RELATIVE_OID:
RelativeOid xiod = new RelativeOid();
oid = xiod.Decode(new MemoryStream(data));
oidName = "";
nodeStr += String.Format("{0,6}|{1,6}|{2,7}|{3} {4} : {5} [{6}]\r\n",
dataOffset,
dataLength,
lengthFieldBytes,
GetIndentStr(startNode),
TagName,
oidName,
oid
);
break;
case Asn1Tag.PRINTABLE_STRING:
case Asn1Tag.IA5_STRING:
case Asn1Tag.UNIVERSAL_STRING:
case Asn1Tag.VISIBLE_STRING:
case Asn1Tag.NUMERIC_STRING:
case Asn1Tag.UTC_TIME:
case Asn1Tag.UTF8_STRING:
case Asn1Tag.BMPSTRING:
case Asn1Tag.GENERAL_STRING:
case Asn1Tag.GENERALIZED_TIME:
baseLine =
String.Format("{0,6}|{1,6}|{2,7}|{3} {4} : ",
dataOffset,
dataLength,
lengthFieldBytes,
GetIndentStr(startNode),
TagName
);
if ( tag == Asn1Tag.UTF8_STRING )
{
UTF8Encoding unicode = new UTF8Encoding();
dataStr = unicode.GetString(data);
}
else
{
dataStr = Asn1Util.BytesToString(data);
}
if (baseLine.Length + dataStr.Length < lineLen)
{
nodeStr += baseLine + "'" + dataStr + "'\r\n";
}
else
{
nodeStr += baseLine + FormatLineString(
lStr,
GetIndentStr(startNode).Length,
lineLen,
dataStr) + "\r\n";
}
break;
case Asn1Tag.INTEGER:
if (data != null && dataLength < 8)
{
nodeStr += String.Format("{0,6}|{1,6}|{2,7}|{3} {4} : {5}\r\n",
dataOffset,
dataLength,
lengthFieldBytes,
GetIndentStr(startNode),
TagName,
Asn1Util.BytesToLong(data).ToString()
);
}
else
{
baseLine =
String.Format("{0,6}|{1,6}|{2,7}|{3} {4} : ",
dataOffset,
dataLength,
lengthFieldBytes,
GetIndentStr(startNode),
TagName
);
nodeStr += GetHexPrintingStr(startNode, baseLine, lStr, lineLen);
}
break;
default:
if ((tag & Asn1Tag.TAG_MASK) == 6) // Visible string for certificate
{
baseLine =
String.Format("{0,6}|{1,6}|{2,7}|{3} {4} : ",
dataOffset,
dataLength,
lengthFieldBytes,
GetIndentStr(startNode),
TagName
);
dataStr = Asn1Util.BytesToString(data);
if (baseLine.Length + dataStr.Length < lineLen)
{
nodeStr += baseLine + "'" + dataStr + "'\r\n";
}
else
{
nodeStr += baseLine + FormatLineString(
lStr,
GetIndentStr(startNode).Length,
lineLen,
dataStr) + "\r\n";
}
}
else
{
baseLine =
String.Format("{0,6}|{1,6}|{2,7}|{3} {4} : ",
dataOffset,
dataLength,
lengthFieldBytes,
GetIndentStr(startNode),
TagName
);
nodeStr += GetHexPrintingStr(startNode, baseLine, lStr, lineLen);
}
break;
};
if (childNodeList.Count >= 0)
{
nodeStr += GetListStr(startNode, lineLen);
}
return nodeStr;
}
/// <summary>
/// Get node by OID.
/// </summary>
/// <param name="oid">OID.</param>
/// <param name="startNode">Starting node.</param>
/// <returns>Null or Asn1Node.</returns>
static public Asn1Node GetDecendantNodeByOid(string oid, Asn1Node startNode)
{
Asn1Node retval = null;
Oid xoid = new Oid();
for (int i = 0; i<startNode.ChildNodeCount; i++)
{
Asn1Node childNode = startNode.GetChildNode(i);
int tmpTag = childNode.tag & Asn1Tag.TAG_MASK;
if (tmpTag == Asn1Tag.OBJECT_IDENTIFIER)
{
if (oid == xoid.Decode(childNode.Data))
{
retval = childNode;
break;
}
}
retval = GetDecendantNodeByOid(oid, childNode);
if (retval != null) break;
}
return retval;
}
public static bool IsOidStr(string inStr)
{
bool retval = false;
MemoryStream ms = new MemoryStream();
Oid xoid = new Oid();
xoid.Encode(ms, inStr);
ms.Close();
retval = true;
return retval;
}
public static bool EditNode(IWin32Window parent, Asn1Node aNode, bool enableTagEdit, bool pureHexMode)
{
byte[] val;
byte[] data;
FormNodeContentEditor ed = new FormNodeContentEditor();
ed.aNode = aNode;
MemoryStream ms = new MemoryStream();
ed.checker = FormNodeContentEditor.DataChecker.None;
ed.enableTagEdit = enableTagEdit;
ed.pureHexMode = pureHexMode;
if (
((aNode.Tag&Asn1Tag.TAG_MASK) == Asn1Tag.BIT_STRING) &&
(aNode.ChildNodeCount<1))
{
ed.panelUnusedBits.Visible = true;
ed.textBoxUnusedBits.Text = aNode.UnusedBits.ToString();
}
else
{
ed.panelUnusedBits.Visible = false;
}
if (pureHexMode)
{
ed.checker = DataChecker.Hex;
ed.ShowDialog(parent);
if (!ed.isOK) return false;
data = Asn1Util.HexStrToBytes(ed.GetValueStr());
aNode.Data = data;
}
else
{
byte[] oidVal;
switch (aNode.Tag)
{
case Asn1Tag.OBJECT_IDENTIFIER:
ed.checker = DataChecker.Oid;
ed.ShowDialog(parent);
if (!ed.isOK) return false;
Oid xoid = new Oid();
xoid.Encode(ms, ed.GetValueStr());
ms.Position = 0;
oidVal = new byte[ms.Length];
ms.Read(oidVal, 0, (int)ms.Length);
ms.Close();
aNode.Data = oidVal;
break;
case Asn1Tag.RELATIVE_OID:
ed.checker = DataChecker.Roid;
ed.ShowDialog(parent);
if (!ed.isOK) return false;
RelativeOid roid = new RelativeOid();
roid.Encode(ms, ed.GetValueStr());
ms.Position = 0;
oidVal = new byte[ms.Length];
ms.Read(oidVal, 0, (int)ms.Length);
ms.Close();
aNode.Data = oidVal;
break;
case Asn1Tag.PRINTABLE_STRING:
case Asn1Tag.IA5_STRING:
case Asn1Tag.UNIVERSAL_STRING:
case Asn1Tag.VISIBLE_STRING:
case Asn1Tag.NUMERIC_STRING:
case Asn1Tag.UTC_TIME:
case Asn1Tag.GENERAL_STRING:
case Asn1Tag.GENERALIZED_TIME:
ed.ShowDialog(parent);
if (!ed.isOK) return false;
val = Asn1Util.StringToBytes(ed.GetValueStr());
aNode.Data = val;
break;
case Asn1Tag.UTF8_STRING:
ed.ShowDialog(parent);
if (!ed.isOK) return false;
UTF8Encoding u8 = new UTF8Encoding(false);
val = u8.GetBytes(ed.GetValueStr());
aNode.Data = val;
break;
case Asn1Tag.BMPSTRING:
ed.ShowDialog(parent);
if (!ed.isOK) return false;
byte[] tmpval = Asn1Util.StringToBytes(ed.GetValueStr());
val = new byte[tmpval.Length*2];
for (int i = 0; i<tmpval.Length; i++)
{
val[i*2] = 0;
val[i*2+1] = tmpval[i];
}
aNode.Data = val;
break;
case Asn1Tag.INTEGER:
case Asn1Tag.BIT_STRING:
ed.checker = DataChecker.Hex;
ed.ShowDialog(parent);
if (!ed.isOK) return false;
aNode.UnusedBits = (byte)(Convert.ToUInt16(ed.textBoxUnusedBits.Text)%8);
data = Asn1Util.HexStrToBytes(ed.GetValueStr());
aNode.Data = data;
break;
default:
if ((aNode.Tag & Asn1Tag.TAG_MASK) == 6) // Visible string for certificate
{
ed.ShowDialog(parent);
if (!ed.isOK) return false;
val = Asn1Util.StringToBytes(ed.GetValueStr());
aNode.Data = val;
}
else
{
ed.checker = DataChecker.Hex;
ed.ShowDialog(parent);
if (!ed.isOK) return false;
data = Asn1Util.HexStrToBytes(ed.GetValueStr());
aNode.Data = data;
}
break;
};
}
return true;
}
public DistinguishedName(Asn1Node n)
{
/* Name:
* SET
* SEQ (attr)
* Object Identifier
* Printable String || UTF8String
*/
if (n.MaskedTag == Asn1Tag.SEQUENCE)
{
for (int i = 0; i < n.ChildNodeCount; i++)
{
Asn1Node tt = n.GetChildNode(i);
if (tt.MaskedTag != Asn1Tag.SET || tt.ChildNodeCount != 1)
{
throw new InvalidX509Data();
}
tt = tt.GetChildNode(0);
if (tt.MaskedTag != Asn1Tag.SEQUENCE || tt.ChildNodeCount != 2)
{
throw new InvalidX509Data();
}
Asn1Node oi = tt.GetChildNode(0);
Asn1Node txt = tt.GetChildNode(1);
if (oi.MaskedTag != Asn1Tag.OBJECT_IDENTIFIER ||
!(
(txt.MaskedTag == Asn1Tag.PRINTABLE_STRING) ||
(txt.MaskedTag == Asn1Tag.UTF8_STRING) ||
(txt.MaskedTag == Asn1Tag.IA5_STRING)))
{
throw new InvalidX509Data();
}
var xoid = new LipingShare.LCLib.Asn1Processor.Oid();
string oiName = xoid.Decode(oi.Data);
var enc = new System.Text.UTF8Encoding();
switch (oiName)
{
case "2.5.4.6": // countryName
Country = enc.GetString(txt.Data);
break;
case "2.5.4.10": // organizationName
Organization = enc.GetString(txt.Data);
break;
case "2.5.4.11": // organizationalUnit
OrganizationalUnit = enc.GetString(txt.Data);
break;
case "2.5.4.3": // commonName
CommonName = enc.GetString(txt.Data);
break;
case "2.5.4.5": // serial number
SerialNumber = Asn1Util.ToHexString(txt.Data);
break;
case "2.5.4.46": // dnq
Dnq = enc.GetString(txt.Data);
break;
case "2.5.4.8": // state
State = enc.GetString(txt.Data);
break;
}
}
}
}