/// <summary>
/// Creates the MD5 based on the metadata of an attachment
/// </summary>
/// <param name="name"></param>
/// <param name="comment"></param>
/// <param name="displayName"></param>
/// <param name="fileSize"></param>
/// <returns></returns>
public static byte[] HashAttachmentMetadata(
string name,
string comment,
string displayName,
long fileSize)
{
MD5Producer hashProducer = new MD5Producer();
StringBuilder sb = new StringBuilder(name.Trim());
sb.Append(comment.Trim());
sb.Append(displayName.Trim());
sb.Append(fileSize.ToString());
return(hashProducer.CalculateMD5(new MemoryStream(ASCIIEncoding.Default.GetBytes(sb.ToString()))));
}
