The SHA-3 standard came out in 2015 including the new hash function SHA-3 itself (based on a sponge construction) as well as SHAKE, a new kind of hash function called XOF. This talk will first go over these two modern algorithms, and will then introduce the other standardized functions derived from SHA-3 (KMAC, TupleHash, ParallelHash) and the more mature, modern and faster hash functions based on SHA-3: KangarooTwelve and MarsupilamiFourteen. The second part of the talk will focus on cryptographic protocols created out of SHA-3: Strobe, a symmetric protocol to protect traffic which only relies on SHA-3 as its core cryptographic function; Disco, a Noise (TLS-like) protocol and library leveraging SHA-3's properties to minimize the number of cryptographic primitives, reduce the code size, simplify the logic and increase the capabilities (hashing, generation of random numbers, derivation of keys, signing, encryption, authentication).