public byte[] GetPayload(byte[] secureBuffer, int startIndex = 0)
{
using (var reader = new SecureBufferReader(secureBuffer, startIndex))
{
byte[] iv = reader.ReadIv();
byte[] encryptedPayload = reader.ReadPayload();
return(DecryptPayload(encryptedPayload, iv));
}
}
public bool IsSecureDataValid(byte[] secureBuffer, int startIndex = 0)
{
using (var reader = new SecureBufferReader(secureBuffer, startIndex))
{
ushort spi = reader.ReadSpi();
byte[] authData = reader.ReadAuthenticatedData();
byte[] storedIcv = reader.ReadStoredIcv();
return(IsSpiValid(spi) && IsIcvValid(authData, storedIcv));
}
}