package octez-libs

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A package that contains multiple base libraries used by the Octez suite

Install

Dune Dependency

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

Authors

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Tezos devteam

Maintainers

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contact@tezos.com

Sources

tezos-octez-v20.1.tag.bz2

sha256=ddfb5076eeb0b32ac21c1eed44e8fc86a6743ef18ab23fff02d36e365bb73d61

sha512=d22a827df5146e0aa274df48bc2150b098177ff7e5eab52c6109e867eb0a1f0ec63e6bfbb0e3645a6c2112de3877c91a17df32ccbff301891ce4ba630c997a65

doc/octez-libs.bls12-381-hash/Bls12_381_hash/Permutation/Rescue/index.html

Module `Permutation.Rescue`Source

Implementation of an instantiation of Rescue over the scalar field of BLS12-381 for a security of 128 bits and with the permutation x^5. The parameters of the instantiation are:

state size = 3
number of rounds = 14

These parameters have been generated using this script.

Sourcemodule Parameters : sig ... end

Set of parameters for BLS12-381, and parameters for specific instantiations given in the reference paper

Sourcetype parameters = Parameters.t

Parameters for a specific instance

Sourcetype ctxt

Context of the permutation

Sourceval allocate_ctxt : parameters -> ctxt

allocate_ctxt parameters. Allocate a context for a specific instance of the permutation.

Sourceval get_state : ctxt -> Bls12_381.Fr.t array

Return the current state of the context

Sourceval get_state_size : ctxt -> int

Return the state size of the context

Sourceval set_state : ctxt -> Bls12_381.Fr.t array -> unit

set_state ctxt state. Set the context state to the given value. The value state must be of the same size than the expecting state

Sourceval apply_permutation : ctxt -> unit

Apply a permutation on the current state of the context