Module `EverCrypt.Chacha20_Poly1305`

Multiplexing interface for Chacha20-Poly1305

type bytes = SharedDefs.CBytes.t

val encrypt : key:bytes -> iv:bytes -> ad:bytes -> pt:bytes -> bytes * bytes: encrypt key iv ad pt takes a key, an initial value iv, additional data ad, and plaintext pt and returns a tuple containing the encrypted pt and the authentication tag for the plaintext and the associated data.

val decrypt : key:bytes -> iv:bytes -> ad:bytes -> ct:bytes -> tag:bytes -> bytes option: decrypt key iv ad ct tag takes a key, the initial value iv, additional data ad, ciphertext ct, and authentication tag tag, and, if successful, returns the decrypted ct.

module Noalloc : sig ... end: Versions of these functions which write their output in a buffer passed in as an argument