%% You should probably cite draft-ietf-httpauth-basicauth-update instead of this I-D.
@techreport{ietf-httpauth-basicauth-enc-01,
    number =    {draft-ietf-httpauth-basicauth-enc-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-httpauth-basicauth-enc/01/},
    author =    {Julian Reschke},
    title =     {{An Encoding Parameter for HTTP Basic Authentication}},
    pagetotal = 11,
    year =      2013,
    month =     jun,
    day =       30,
    abstract =  {The "Basic" authentication scheme defined in RFC 2617 does not properly define how to treat non-ASCII characters. This has led to a situation where user agent implementations disagree, and servers make different assumptions based on the locales they are running in. There is little interoperability for the non-ASCII characters in the ISO-8859-1 character repertoire, and even less interoperability for any characters beyond that. This document defines a backwards-compatible extension to "Basic", specifying the server's character encoding scheme expectation, using a new authentication scheme parameter.},
}