public void SetBadNameWithoutEndingNul()
{
byte[] rawFileName = Encoding.ASCII.GetBytes("ABCDEFGHIJK.LMNO");
byte[] dataBlock = new byte[16];
rawFileName.CopyTo(dataBlock, 0);
SetDataBlockBytesReference(HeaderCrypto.Encrypt(dataBlock));
}
private void SetTimeStamp(DateTime dateTime, int timeOffset)
{
EnsureDataBlock();
byte[] timeStampBytes = GetTimeStampBytes(dateTime);
byte[] rawFileTimes = HeaderCrypto.Decrypt(GetDataBlockBytesReference());
Array.Copy(timeStampBytes, 0, rawFileTimes, timeOffset, timeStampBytes.Length);
SetDataBlockBytesReference(HeaderCrypto.Encrypt(rawFileTimes));
}
private void EnsureDataBlock()
{
if (GetDataBlockBytesReference().Length > 0)
{
return;
}
SetDataBlockBytesReference(HeaderCrypto.Encrypt(new byte[32]));
}
private DateTime GetTimeStamp(int timeOffset)
{
EnsureDataBlock();
byte[] rawFileTimes = HeaderCrypto.Decrypt(GetDataBlockBytesReference());
uint lowDateTime = (uint)rawFileTimes.GetLittleEndianValue(timeOffset, 4);
uint hiDateTime = (uint)rawFileTimes.GetLittleEndianValue(timeOffset + 4, 4);
long filetime = ((long)hiDateTime << 32) | lowDateTime;
DateTime timeStampUtc = new DateTime(WindowsTimeTicksStart + filetime, DateTimeKind.Utc);
return(timeStampUtc);
}
private void EnsureDataBlock()
{
if (GetDataBlockBytesReference().Length > 0)
{
return;
}
byte[] timeBytes = GetTimeStampBytes(OS.Current.UtcNow);
byte[] rawData = new byte[32];
Array.Copy(timeBytes, 0, rawData, CreationTimeOffset, timeBytes.Length);
Array.Copy(timeBytes, 0, rawData, LastAccessTimeOffset, timeBytes.Length);
Array.Copy(timeBytes, 0, rawData, LastWriteTimeOffset, timeBytes.Length);
SetDataBlockBytesReference(HeaderCrypto.Encrypt(rawData));
}
private void SetVerifier(byte[] verifier)
{
byte[] encryptedBlock = HeaderCrypto.Encrypt(verifier);
SetDataBlockBytesReference(encryptedBlock);
}
