@techreport{arkko-sip-sec-agree-01,
    number =    {draft-arkko-sip-sec-agree-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-arkko-sip-sec-agree/01/},
    author =    {Jari Arkko},
    title =     {{Security Mechanism Agreement for SIP Connections}},
    pagetotal = 12,
    year =      2002,
    month =     mar,
    day =       5,
    abstract =  {SIP has a number of security mechanisms for hop-by-hop and end-to-end protection. Some of the security mechanisms have been built in to the SIP protocol, such as HTTP authentication or secure attachments. In these mechanisms there are even alternative algorithms and parameters.},
}