%% You should probably cite draft-ietf-lake-edhoc-psk instead of this I-D.
@techreport{lopez-lake-edhoc-psk-01,
    number =    {draft-lopez-lake-edhoc-psk-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-lopez-lake-edhoc-psk/01/},
    author =    {Elsa Lopez-Perez and Göran Selander and John Preuß Mattsson and Rafael Marin-Lopez},
    title =     {{EDHOC PSK authentication}},
    pagetotal = 16,
    year =      ,
    month =     ,
    day =       ,
    abstract =  {This document specifies two variants of pre-shared key (PSK) authentication for the Ephemeral Diffie-Hellman Over COSE (EDHOC) key exchange protocol. Both variants use a pre-shared key for authentication, but differ in when the PSK credential identifier (ID\_CRED\_PSK) is transmitted. In the first variant, ID\_CRED\_PSK is sent in message 1, while in the second variant, it is sent in message 3. This document describes the authentication processes, message flows, and security considerations for each variant.},
}