public Package2(Keyset keyset, IStorage storage)
{
Storage = storage;
IStorage headerStorage = Storage.Slice(0, 0x200);
KeyRevision = FindKeyGeneration(keyset, headerStorage);
Key = keyset.Package2Keys[KeyRevision];
Header = new Package2Header(headerStorage, keyset, KeyRevision);
PackageSize = BitConverter.ToInt32(Header.Counter, 0) ^ BitConverter.ToInt32(Header.Counter, 8) ^
BitConverter.ToInt32(Header.Counter, 12);
HeaderVersion = Header.Counter[4] ^ Header.Counter[6] ^ Header.Counter[7];
if (PackageSize != 0x200 + Header.SectionSizes[0] + Header.SectionSizes[1] + Header.SectionSizes[2])
{
throw new InvalidDataException("Package2 Header is corrupt!");
}
}
public Package2(Keyset keyset, Stream stream)
{
StreamSource = new SharedStreamSource(stream);
SharedStream headerStream = StreamSource.CreateStream(0, 0x200);
KeyRevision = FindKeyGeneration(keyset, headerStream);
Key = keyset.Package2Keys[KeyRevision];
Header = new Package2Header(headerStream, Key);
PackageSize = BitConverter.ToInt32(Header.Counter, 0) ^ BitConverter.ToInt32(Header.Counter, 8) ^
BitConverter.ToInt32(Header.Counter, 12);
HeaderVersion = Header.Counter[4] ^ Header.Counter[6] ^ Header.Counter[7];
if (PackageSize != 0x200 + Header.SectionSizes[0] + Header.SectionSizes[1] + Header.SectionSizes[2])
{
throw new InvalidDataException("Package2 Header is corrupt!");
}
}