package octez-proto-libs

You can search for identifiers within the package.

in-package search v0.2.0

Octez protocol libraries

Install

Dune Dependency

www.tezos.com Readme Edit opam file Versions (5)

Authors

T

Tezos devteam

Maintainers

C

contact@tezos.com

Sources

octez-19.0.tar.gz

sha256=c6df840ebbf115e454db949028c595bec558a59a66cade73b52a6d099d6fa4d4

sha512=d8aee903b9fe130d73176bc8ec38b78c9ff65317da3cb4f3415f09af0c625b4384e7498201fdb61aa39086a7d5d409d0ab3423f9bc3ab989a680cf444a79bc13

doc/octez-proto-libs.protocol-environment/Tezos_protocol_environment/V9/Make/Bls/Primitive/Fr/index.html

Module `Primitive.Fr`

include S.FIELD with type t = Bls12_381.Fr.t

type t = Bls12_381.Fr.t

val order : Z.t

The order of the finite field

val size_in_bytes : int

Minimal number of bytes required to encode a value of the field.

val check_bytes : Bytes.t -> bool

check_bytes bs returns true if bs is a correct byte representation of a field element

val zero : t

The neutral element for the addition

val one : t

The neutral element for the multiplication

val add : t -> t -> t

add a b returns a + b mod order

val mul : t -> t -> t

mul a b returns a * b mod order

val eq : t -> t -> bool

eq a b returns true if a = b mod order, else false

val negate : t -> t

negate x returns -x mod order. Equivalently, negate x returns the unique y such that x + y mod order = 0

val inverse_opt : t -> t option

inverse_opt x returns x^-1 if x is not 0 as an option, else None

val pow : t -> Z.t -> t

pow x n returns x^n

val of_bytes_opt : Bytes.t -> t option

From a predefined bytes representation, construct a value t. It is not required that to_bytes (Option.get (of_bytes_opt t)) = t. By default, little endian encoding is used and the given element is modulo the prime order

val to_bytes : t -> Bytes.t

Convert the value t to a bytes representation which can be used for hashing for instance. It is not required that to_bytes (Option.get (of_bytes_opt t)) = t. By default, little endian encoding is used, and length of the resulting bytes may vary depending on the order.

val size_in_memory : int

Actual number of bytes allocated for a value of type t

val of_z : Z.t -> t

of_z x builds an element t from the Zarith element x. mod order is applied if x >= order or x < 0.

val to_z : t -> Z.t

to_z x builds a Zarith element, using the decimal representation. Arithmetic on the result can be done using the modular functions on integers