public Biff8RC4(int InitialOffset, Biff8EncryptionKey key)
{
if (InitialOffset >= RC4_REKEYING_INTERVAL)
{
throw new Exception("InitialOffset (" + InitialOffset + ")>"
+ RC4_REKEYING_INTERVAL + " not supported yet");
}
_key = key;
_streamPos = 0;
RekeyForNextBlock();
_streamPos = InitialOffset;
for (int i = InitialOffset; i > 0; i--)
{
_rc4.Output();
}
_shouldSkipEncryptionOnCurrentRecord = false;
}
public RecordInputStream(Stream in1, Biff8EncryptionKey key, int initialOffset)
{
if (key == null)
{
_dataInput = SimpleHeaderInput.GetLEI(in1);
_bhi = new SimpleHeaderInput(in1);
}
else
{
Biff8DecryptingStream bds = new Biff8DecryptingStream(in1, initialOffset, key);
_bhi = bds;
_dataInput = bds;
}
_nextSid = ReadNextSid();
}