/// <summary>
/// Read a sector trailer with provided keys
/// </summary>
/// <param name="sector"></param>
/// <returns></returns>
public bool ReadSectorTrailer(ref Sector sector)
{
byte[] data = null;
ushort blockAddress = (ushort)MemoryCardMifareClassic.SectorTrailerAddress(sector.Number);
if (sector.isSetKeyA())
{
data = MifareClassicRead(blockAddress, 16, sector.getKeyA());
if (data == null)
{
if (sector.isSetKeyB())
{
data = MifareClassicRead(blockAddress, 16, sector.getKeyB());
}
}
}
else
{
if (sector.isSetKeyB())
{
data = MifareClassicRead(blockAddress, 16, sector.getKeyB());
}
}
if (data == null)
{
return(false);
}
// Set access bits
byte[] accessBytes = new byte[4];
Array.ConstrainedCopy(data, 6, accessBytes, 0, 4);
sector.AccessBits = accessBytes;
return(true);
}
/// <summary>
/// Try to read a sector with a specified key
/// </summary>
/// <param name="sectorNumber">Sector's number</param>
/// <param name="key">Key used to read</param>
/// <returns></returns>
private MemoryCardMifareClassic.Sector ReadSectorWithKey(int sectorNumber, byte[] key)
{
MemoryCardMifareClassic.Sector sector = new Sector(sectorNumber);
int firstBlockAddress = MemoryCardMifareClassic.SectorFirstBlockAddress(sectorNumber);
int lastBlockAddress = MemoryCardMifareClassic.SectorTrailerAddress(sectorNumber);
int counter = 0;
for (ushort blockAddress = (ushort)firstBlockAddress; blockAddress < (ushort)lastBlockAddress; blockAddress++)
{
byte[] data = MifareClassicRead(blockAddress, 16, key);
if (data != null)
{
sector.SetBlock(counter, data);
counter++;
}
else
{
return(null);
}
}
return(sector);
}
