title: What is the maximum length of a SID in SDDL format
body: <p>I'm building Active Directory Authentication into my application and I am planning to link my application's internal accounts to a user's domain SID.  It is easier for me to work with the string format of the sid than a byte array so I was planning to store it in the database as a string.  How long should I make the field to ensure SID's will not get truncated?</p>