public PacSignature(byte[] infoBuffer, ref byte[] signatureData)
{
var pacStream = new NdrBinaryReader(infoBuffer);
Type = (ChecksumType)pacStream.ReadUnsignedInt();
SignaturePosition = (int)pacStream.Position;
switch (Type)
{
case ChecksumType.KERB_CHECKSUM_HMAC_MD5:
Signature = pacStream.Read(16);
Validator = new HmacMd5PacValidator(Signature, ref signatureData);
break;
case ChecksumType.HMAC_SHA1_96_AES128:
Signature = pacStream.Read(12);
Validator = new HmacAes128PacValidator(Signature, ref signatureData);
break;
case ChecksumType.HMAC_SHA1_96_AES256:
Signature = pacStream.Read(12);
Validator = new HmacAes256PacValidator(Signature, ref signatureData);
break;
}
if (pacStream.Position < pacStream.Length)
{
RODCIdentifier = pacStream.ReadShort();
}
}
public ClaimsArray(NdrBinaryReader pacStream)
{
ClaimSource = (ClaimSourceType)pacStream.ReadInt();
Count = pacStream.ReadUnsignedInt();
var claims = new List <ClaimEntry>();
pacStream.Seek(4);
var count = pacStream.ReadInt();
if (Count != count)
{
throw new InvalidDataException($"Claims count {Count} doesn't match actual count {count}");
}
for (var i = 0; i < Count; i++)
{
claims.Add(new ClaimEntry(pacStream));
}
foreach (var entry in claims)
{
entry.ReadValue(pacStream);
}
ClaimEntries = claims;
}
public ClaimEntry(NdrBinaryReader pacStream)
{
pacStream.Seek(4);
Type = (ClaimType)pacStream.ReadShort();
pacStream.Align(4);
Count = pacStream.ReadUnsignedInt();
pacStream.Seek(4);
}
private static SecurityIdentifier[] ParseExtraSids(NdrBinaryReader pacStream, int extraSidCount, int extraSidPointer)
{
if (extraSidPointer == 0)
{
return(new SecurityIdentifier[0]);
}
int realExtraSidCount = pacStream.ReadInt();
if (realExtraSidCount != extraSidCount)
{
throw new InvalidDataException($"Expected Sid count {extraSidCount} doesn't match actual sid count {realExtraSidCount}");
}
var extraSidAtts = new SecurityIdentifier[extraSidCount];
var pointers = new int[extraSidCount];
var attributes = new SidAttributes[extraSidCount];
for (int i = 0; i < extraSidCount; i++)
{
pointers[i] = pacStream.ReadInt();
attributes[i] = (SidAttributes)pacStream.ReadUnsignedInt();
}
for (int i = 0; i < extraSidCount; i++)
{
SecurityIdentifier sid = null;
if (pointers[i] != 0)
{
sid = new SecurityIdentifier(pacStream.ReadSid(), attributes[i]);
}
extraSidAtts[i] = sid;
}
return(extraSidAtts);
}