%% You should probably cite draft-evans-palmer-key-pinning instead of this I-D.
@techreport{evans-palmer-hsts-pinning-00,
    number =    {draft-evans-palmer-hsts-pinning-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-evans-palmer-hsts-pinning/00/},
    author =    {Chris Evans and Chris Palmer and Chris Evans},
    title =     {{Certificate Pinning Extension for HSTS}},
    pagetotal = 11,
    year =      2011,
    month =     sep,
    day =       21,
    abstract =  {This memo describes an extension to the HTTP Strict Transport Security specification allowing web host operators to instruct UAs to remember ("pin") hosts' cryptographic identities for a given period of time. During that time, UAs will require that the host present a certificate chain including at least one public key whose fingerprint matches one or more of the pinned fingerprints for that host. By effectively reducing the scope of authorities who can authenticate the domain during the lifetime of the pin, we hope pinning reduces the incidence of man-in-the-middle attacks due to compromised Certification Authorities and other authentication errors and attacks.},
}