/// <summary>
/// Computes CRC-16 (IEEE 802.3) digest from given data.
/// </summary>
/// <param name="value">Value.</param>
/// <param name="index">A 32-bit integer that represents the index at which data begins.</param>
/// <param name="length">A 32-bit integer that represents the number of elements.</param>
public static short ComputeCrc(byte[] value, int index, int length)
{
Crc16 crc = Crc16.GetIeee();
crc.Append(value, index, length);
return(crc.Digest);
}
/// <summary>
/// Computes CRC-16 (IEEE 802.3) digest from given data.
/// </summary>
/// <param name="value">Unicode text for performing hash functions.</param>
/// <param name="useAsciiEncoding">If True, ASCII encoding is used instead of Unicode.</param>
public static short ComputeCrc(string value, bool useAsciiEncoding)
{
Crc16 crc = Crc16.GetIeee();
crc.Append(value, useAsciiEncoding);
return(crc.Digest);
}
/// <summary>
/// Computes CRC-16 (IEEE 802.3) digest from given data.
/// </summary>
/// <param name="value">Value.</param>
public static short ComputeCrc(byte[] value)
{
Crc16 crc = Crc16.GetIeee();
crc.Append(value);
return(crc.Digest);
}
public void Crc16_Arc()
{
string expected = "178C";
Crc16 actualCrc = Crc16.GetArc();
actualCrc.Append("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ", true);
string actual = actualCrc.Digest.ToString("X4");
Assert.AreEqual(expected, actual);
}
public void TestCrc16(string name, ushort polynomial, ushort initialState, ushort xorOutput, bool reverseInput, bool reverseOutput, ushort check)
{
using (Crc16 crc = new Crc16(polynomial, initialState, xorOutput, reverseInput, reverseOutput))
{
crc.Initialize();
var bytes = Encoding.UTF8.GetBytes(data);
for (int i = 0; i < bytes.Length; i++)
{
crc.Append(bytes[i]);
}
ushort output = crc.CurrentOutput;
Assert.AreEqual(check, output, 0);
}
}
