bb::stdlib::element_default::element< Builder_, Fq, Fr, NativeGroup >::four_bit_table_plookup Struct Reference

Four-bit variable-base table for scalar multiplication. More...

Public Member Functions
	four_bit_table_plookup ()=default
	four_bit_table_plookup (const element &input)
	four_bit_table_plookup (const four_bit_table_plookup &other)=default
four_bit_table_plookup &	operator= (const four_bit_table_plookup &other)=default
	four_bit_table_plookup (four_bit_table_plookup &&other) noexcept=default
four_bit_table_plookup &	operator= (four_bit_table_plookup &&other) noexcept=default
	~four_bit_table_plookup ()=default
element	operator[] (const field_t< Builder > &index) const
element	operator[] (const size_t idx) const

Public Attributes
std::array< element, 16 >	element_table
std::array< twin_rom_table< Builder >, Fq::NUM_LIMBS+1 >	coordinates
std::array< uint256_t, Fq::NUM_LIMBS *2 >	limb_max

Detailed Description

template<class Builder_, class Fq, class Fr, class NativeGroup>
struct bb::stdlib::element_default::element< Builder_, Fq, Fr, NativeGroup >::four_bit_table_plookup

Four-bit variable-base table for scalar multiplication.

We store precomputed multiples of a group element in ROM tables. These precomputed multiples of the group element are used for scalar multiplication using 4-bit wNAF window.

Definition at line 600 of file biggroup.hpp.

Constructor & Destructor Documentation

four_bit_table_plookup() [1/4]

template<class Builder_ , class Fq , class Fr , class NativeGroup >

bb::stdlib::element_default::element< Builder_, Fq, Fr, NativeGroup >::four_bit_table_plookup::four_bit_table_plookup ( )

default

four_bit_table_plookup() [2/4]

template<typename C , class Fq , class Fr , class G >

bb::stdlib::element_default::element< C, Fq, Fr, G >::four_bit_table_plookup::four_bit_table_plookup

(

const element &

input

)

Definition at line 102 of file biggroup_tables.hpp.

four_bit_table_plookup() [3/4]

template<class Builder_ , class Fq , class Fr , class NativeGroup >

bb::stdlib::element_default::element< Builder_, Fq, Fr, NativeGroup >::four_bit_table_plookup::four_bit_table_plookup ( const four_bit_table_plookup &  other )

default

four_bit_table_plookup() [4/4]

template<class Builder_ , class Fq , class Fr , class NativeGroup >

bb::stdlib::element_default::element< Builder_, Fq, Fr, NativeGroup >::four_bit_table_plookup::four_bit_table_plookup ( four_bit_table_plookup &&  other )

defaultnoexcept

~four_bit_table_plookup()

template<class Builder_ , class Fq , class Fr , class NativeGroup >

bb::stdlib::element_default::element< Builder_, Fq, Fr, NativeGroup >::four_bit_table_plookup::~four_bit_table_plookup ( )

default

Member Function Documentation

operator=() [1/2]

template<class Builder_ , class Fq , class Fr , class NativeGroup >

four_bit_table_plookup & bb::stdlib::element_default::element< Builder_, Fq, Fr, NativeGroup >::four_bit_table_plookup::operator= ( const four_bit_table_plookup &  other )

default

operator=() [2/2]

template<class Builder_ , class Fq , class Fr , class NativeGroup >

four_bit_table_plookup & bb::stdlib::element_default::element< Builder_, Fq, Fr, NativeGroup >::four_bit_table_plookup::operator= ( four_bit_table_plookup &&  other )

defaultnoexcept

operator[]() [1/2]

template<class Builder_ , class Fq , class Fr , class NativeGroup >

element bb::stdlib::element_default::element< Builder_, Fq, Fr, NativeGroup >::four_bit_table_plookup::operator[]

(

const field_t< Builder > &

index

)

const

operator[]() [2/2]

template<class Builder_ , class Fq , class Fr , class NativeGroup >

element bb::stdlib::element_default::element< Builder_, Fq, Fr, NativeGroup >::four_bit_table_plookup::operator[] ( const size_t  idx ) const

inline

Definition at line 611 of file biggroup.hpp.

Member Data Documentation

coordinates

template<class Builder_ , class Fq , class Fr , class NativeGroup >

std::array<twin_rom_table<Builder>, Fq::NUM_LIMBS + 1> bb::stdlib::element_default::element< Builder_, Fq, Fr, NativeGroup >::four_bit_table_plookup::coordinates

Definition at line 615 of file biggroup.hpp.

element_table

template<class Builder_ , class Fq , class Fr , class NativeGroup >

std::array<element, 16> bb::stdlib::element_default::element< Builder_, Fq, Fr, NativeGroup >::four_bit_table_plookup::element_table

Definition at line 612 of file biggroup.hpp.

limb_max

template<class Builder_ , class Fq , class Fr , class NativeGroup >

std::array<uint256_t, Fq::NUM_LIMBS * 2> bb::stdlib::element_default::element< Builder_, Fq, Fr, NativeGroup >::four_bit_table_plookup::limb_max

Definition at line 616 of file biggroup.hpp.

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The documentation for this struct was generated from the following files:

• src/barretenberg/stdlib/primitives/biggroup/biggroup.hpp
• src/barretenberg/stdlib/primitives/biggroup/biggroup_tables.hpp