public Crc16(Crc16Type type, Endianness endianness)
{
_polynomial = GetPolynomialByType(type);
if (endianness == Endianness.Big)
{
_polynomial = FlipPolynomial(_polynomial);
_endianness = endianness;
}
Reset();
}
public Crc16(Crc16Type type, Endianness endianness, ushort seed)
{
_polynomial = GetPolynomialByType(type);
if (endianness == Endianness.Big)
{
_polynomial = FlipPolynomial(_polynomial);
_endianness = endianness;
}
_seed = seed;
Reset();
}
private ushort GetPolynomialByType(Crc16Type type)
{
switch (type)
{
case Crc16Type.ARINC:
return(0xD405);
case Crc16Type.CCITT:
return(0x8404);
case Crc16Type.CDMA2000:
return(0xE613);
case Crc16Type.Chakravarty:
return(0xA8F4);
case Crc16Type.DECT:
return(0x91A0);
case Crc16Type.DNP:
return(0xA6BC);
case Crc16Type.IBM:
return(0xA001);
case Crc16Type.OpenSafety_A:
return(0xAC9A);
case Crc16Type.OpenSafety_B:
return(0xDAAE);
case Crc16Type.Profibus:
return(0xF3B8);
case Crc16Type.T10:
return(0xEDD1);
default:
throw new ArgumentOutOfRangeException("type", "The type parameter must be a valid Crc16Type.");
}
}
public Crc16(Crc16Type type)
{
_polynomial = GetPolynomialByType(type);
Reset();
}