RFC 9861: KangarooTwelve and TurboSHAKE, B. Viguier, et al., https://www.rfc-editor.org/info/rfc9861 #RFC This document defines four eXtendable-Output Functions (XOFs), hash functions with output of arbitrary length, named TurboSHAKE128, TurboSHAKE256, KT128, and KT256. All four functions provide efficient and secure hashing primitives, and the last two are able to exploit the parallelism of 1/2