@misc{rfc9709,
    series =    {Request for Comments},
    number =    9709,
    howpublished =  {RFC 9709},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC9709},
    url =       {https://www.rfc-editor.org/info/rfc9709},
    author =    {Russ Housley},
    title =     {{Encryption Key Derivation in the Cryptographic Message Syntax (CMS) Using HKDF with SHA-256}},
    pagetotal = 13,
    year =      2025,
    month =     jan,
    abstract =  {This document specifies the derivation of the content-encryption key or the content-authenticated-encryption key in the Cryptographic Message Syntax (CMS) using the HMAC-based Extract-and-Expand Key Derivation Function (HKDF) with SHA-256. The use of this mechanism provides protection against an attacker that manipulates the content-encryption algorithm identifier or the content-authenticated-encryption algorithm identifier.},
}