package tezos-plonk

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Plonk zero-knowledge proving system

Install

Dune Dependency

research-development.nomadic-labs.com Readme Edit opam file Versions (6)

Authors

N

Nomadic Labs Privacy Team

Maintainers

P

privacy-team@nomadic-labs.com

Sources

privacy-team-v1.0.0.tar.gz

md5=c9007a234fbacaddbc652c139cac56db

sha512=b67825a9259c27ccba51a4cb98056985c93f74f5211d422ce8ee8c35cda748c22bd1e59b3a584a79f96c1be21a409a12ee4b705346e1319c6d8bf45e81029f93

doc/tezos-plonk.aggregation/Aggregation/Polynomial_commitment/Make/Polynomial/Srs/Srs_g2/index.html

Module `Srs.Srs_g2`

type polynomial = Polynomial.t

type t

val t : t Repr.t

type elt

val empty : t

val get : t -> int -> elt

get srs i returns the i-th element of srs

val size : t -> int

Returns the pippenger ctxt size, i.e. the number of elements the context is supposed to be called with

val of_bigstring : 
  ?len:int ->
  Bigstringaf.t ->
  (t, [> `End_of_file of string | `Invalid_point of int ]) result

of_bigstring ~len bs reads len points of G in affine compressed format from bs and returns a Srs. If len is omitted the whole bs is read. The bigstring can be loaded from a file with:

let bigstring_of_file filename =
  let fd = Unix.openfile filename [ Unix.O_RDONLY ] 0o440 in
  Bigarray.array1_of_genarray
  @@ Unix.map_file fd Bigarray.char Bigarray.c_layout false
       [| (* [-1] means read the whole file *) -1 |]
in
Srs_g1.of_bigstring
      (bigstring_of_file ("srs_zcash_g1_21"))
      (1 lsl 5)

or with Lwt:

let bigstring_of_file filename =
  let fd = Unix.openfile filename [ Unix.O_RDONLY ] 0o440 in
  Lwt_bytes.map_file ~fd ~shared:false ()
in

val generate_insecure : int -> Bls12_381.Fr.t -> t

val pippenger : ?offset:int -> ?len:int -> t -> polynomial -> elt

pippenger ctxt poly computes the multiscalar exponentiation using the SRS saved in the context and the coefficients of the given polynomial

val to_array : ?len:int -> t -> elt array