@node enACPKM
@section External/internal rekeying mechanisms

@table @asis
@item Algorithm type
    Rekeying mechanisms for symmetric keys
@item RFC
    @url{https://tools.ietf.org/html/rfc8645, 8645}
@item Standard
    @url{https://tc26.ru/standarts/rekomendatsii-po-standartizatsii/r-1323565-1-017-2018-informatsionnaya-tekhnologiya-kriptograficheskaya-zashchita-informatsii-kriptograficheskie-algoritmy-soputstvuyushchie-primeneniyu-algoritmov-blochnogo-shifrovaniya.html, Р 1323565.1.017-2018}
@end table

@strong{Features}: this RFC describes parallel and serial block-cipher,
hash-function and tree-based "external" rekeying methods and also
"internal" ACPKM (Advanced Cryptographic Prolongation of Key Material)
method.