ligo/vendors/tezos-modded/src/lib_crypto/rand.ml

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let generate = Hacl.Rand.gen

let generate_into ?(pos=0) ?len buf =
  let buflen = MBytes.length buf in
  let len = match len with
    | Some len -> len
    | None -> buflen - pos in
  if pos < 0 || len < 0 || pos + len > buflen then
    invalid_arg (Printf.sprintf "Rand.generate_into: \
                                 invalid slice (pos=%d len=%d)" pos len) ;
  let buf = MBytes.sub buf pos len in
  Hacl.Rand.write buf