/// <summary>
/// SHA1 computation
/// </summary>
/// <param name="data">the data to hash</param>
/// <param name="key">not usable</param>
/// <returns>the hash value</returns>
private static byte[] ComputeAdler32(byte[] data, byte[] key = null)
{
var digest = new AdlerChecksum();
digest.MakeForBuff(data);
var hash = digest.ChecksumValue;
return(BitConverter.GetBytes(hash).Reverse().ToArray());
}
/// <summary>
/// Equals determines whether two files (buffers)
/// have the same checksum value (identical).
/// </summary>
/// <param name="obj">A AdlerChecksum object for comparison</param>
/// <returns>Returns true if the value of checksum is the same
/// as this instance; otherwise, false
/// </returns>
public override bool Equals(object obj)
{
if (obj == null)
{
return(false);
}
if (this.GetType() != obj.GetType())
{
return(false);
}
AdlerChecksum other = (AdlerChecksum)obj;
return(this.ChecksumValue == other.ChecksumValue);
}