%% You should probably cite draft-ietf-curdle-rsa-sha2 instead of this I-D.
@techreport{rsa-dsa-sha2-256-03,
    number =    {draft-rsa-dsa-sha2-256-03},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-rsa-dsa-sha2-256/03/},
    author =    {denis bider},
    title =     {{Use of RSA Keys with SHA-2 256 and 512 in Secure Shell (SSH)}},
    pagetotal = 6,
    year =      2015,
    month =     nov,
    day =       11,
    abstract =  {This memo defines an algorithm name, public key format, and signature format for use of RSA keys with SHA-2 512 for server and client authentication in SSH connections.},
}