%% You should probably cite rfc8129 instead of this I-D.
@techreport{ietf-kitten-krb-auth-indicator-01,
    number =    {draft-ietf-kitten-krb-auth-indicator-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-kitten-krb-auth-indicator/01/},
    author =    {Anupam Jain and Nathan Kinder and Nathaniel McCallum},
    title =     {{Authentication Indicator in Kerberos Tickets}},
    pagetotal = 5,
    year =      2016,
    month =     may,
    day =       16,
    abstract =  {This document proposes an extension in the Kerberos protocol {[}RFC4120{]}. It defines a new Authorization Data Type AD- AUTHENTICATION-INDICATOR. The purpose of introducing this data type is to include an indicator of the strength of a client's authentication in the service tickets so that the application services can use it as an input into policy decisions.},
}