#include <bit_matrix.h>

Public Member Functions
	BitMatrix ()=default

	BitMatrix (std::size_t rows, std::size_t columns, bool value=false)
	Construct a `rows` x `columns` BitMatrix with all bits set to `value`. More...

	BitMatrix (std::vector< AlignedBitVector > &&vectors)
	Construct a BitMatrix by moving a vector of AlignedBitVectors. More...

	BitMatrix (const std::vector< AlignedBitVector > &vectors)
	Construct a BitMatrix by copying a vector of AlignedBitVectors. More...

	BitMatrix (const BitMatrix &other)

	BitMatrix (BitMatrix &&other)

void	operator= (const BitMatrix &other)

void	operator= (BitMatrix &&other)

const AlignedBitVector &	GetRow (std::size_t i) const
	Returns a const AlignedBitVector reference to row `i` of the matrix. More...

AlignedBitVector &	GetMutableRow (std::size_t i)
	Returns a mutable AlignedBitVector reference to row `i` of the matrix. More...

bool	Get (std::size_t row_i, std::size_t column_i) const
	Get Bit at input position. More...

void	Set (std::size_t row_i, std::size_t column_i, bool value)
	Set or unset bit at input position. More...

void	AppendRow (const AlignedBitVector &bit_vector)
	Appends a new row by copying the input bit_vector to the matrix. More...

void	AppendRow (AlignedBitVector &&bit_vector)
	Appends a new row by moving the input bit_vector to the matrix. More...

void	AppendColumn (const AlignedBitVector &bit_vector)
	Appends a new column by copying the input bit_vector to the matrix. More...

void	AppendColumn (AlignedBitVector &&bit_vector)
	Appends a new column by moving the input bit_vector to the matrix. More...

std::string	AsString () const
	Return a string representation of the BitMatrix. More...

void	ForceSetNumColumns (std::size_t n)
	Force the number of columns to be equal to `n`. More...

void	Transpose ()
	Transposes the matrix inplace. More...

void	Transpose128Rows ()
	Transposes a matrix with exactly 128 rows (faster). More...

bool	operator== (const BitMatrix &other) const
	Compare with another BitMatrix for equality. More...

bool	operator!= (const BitMatrix &other) const
	Compare with another BitMatrix for inequality. More...

auto	GetNumRows () const noexcept
	Get number of rows in the BitMatrix. More...

auto	GetNumColumns () const noexcept
	Get number of columns in the BitMatrix. More...

Static Public Member Functions
static void	Transpose128RowsInplace (std::array< std::byte *, 128 > &matrix, std::size_t number_of_columns)
	Transposes a matrix of 128 rows and arbitrary column size inplace. More...

static void	TransposeUsingBitSlicing (std::array< std::byte *, 128 > &matrix, std::size_t number_of_columns)
	Transposes a matrix of 128 rows and arbitrary column size inplace using BitSlicing. More...

static void	SenderTransposeAndEncrypt (const std::array< const std::byte *, 128 > &matrix, std::vector< BitVector<>> &y0, std::vector< BitVector<>> &y1, const BitVector<> choices, primitives::Prg &prg_fixed_key, const std::size_t number_of_columns, const std::vector< std::size_t > &bitlengths)
	Transposes a matrix of 128 rows and arbitrary column size and encrypts it for the sender role. More...

static void	ReceiverTransposeAndEncrypt (const std::array< const std::byte *, 128 > &matrix, std::vector< BitVector<>> &output, primitives::Prg &prg_fixed_key, const std::size_t number_of_columns, const std::vector< std::size_t > &bitlengths)
	Transposes a matrix of 128 rows and arbitrary column size and encrypts it for the recepient role. More...

Constructor & Destructor Documentation

◆ BitMatrix() [1/6]

encrypto::motion::BitMatrix::BitMatrix ( )

default

◆ BitMatrix() [2/6]

encrypto::motion::BitMatrix::BitMatrix	(	std::size_t	rows,
		std::size_t	columns,
		bool	value = `false`
	)

inline

Construct a rows x columns BitMatrix with all bits set to value.

Parameters

rows
columns
value

◆ BitMatrix() [3/6]

encrypto::motion::BitMatrix::BitMatrix ( std::vector< AlignedBitVector > && vectors )

inline

Construct a BitMatrix by moving a vector of AlignedBitVectors.

Parameters

vectors Each AlignedBitVector represents a row of the BitMatrix.

Precondition: All AlignedBitVectors have the same size.

◆ BitMatrix() [4/6]

encrypto::motion::BitMatrix::BitMatrix ( const std::vector< AlignedBitVector > & vectors )

inline

Construct a BitMatrix by copying a vector of AlignedBitVectors.

Parameters

vectors Each AlignedBitVector represents a row of the BitMatrix.

Precondition: All AlignedBitVectors have the same size.

◆ BitMatrix() [5/6]

encrypto::motion::BitMatrix::BitMatrix ( const BitMatrix & other )

inline

◆ BitMatrix() [6/6]

encrypto::motion::BitMatrix::BitMatrix ( BitMatrix && other )

inline

Member Function Documentation

◆ AppendColumn() [1/2]

void encrypto::motion::BitMatrix::AppendColumn ( AlignedBitVector && bit_vector )

inline

Appends a new column by moving the input bit_vector to the matrix.

Parameters

bit_vector The new column.

Precondition: Size of bit_vector must be equal to the number of rows in the matrix.

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◆ AppendColumn() [2/2]

void encrypto::motion::BitMatrix::AppendColumn ( const AlignedBitVector & bit_vector )

Appends a new column by copying the input bit_vector to the matrix.

Parameters

bit_vector The new column.

Precondition: Size of bit_vector must be equal to the number of rows in the matrix.

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◆ AppendRow() [1/2]

void encrypto::motion::BitMatrix::AppendRow ( AlignedBitVector && bit_vector )

Appends a new row by moving the input bit_vector to the matrix.

Parameters

bit_vector The new row.

Precondition: Size of bit_vector must be equal to the number of columns in the matrix.

◆ AppendRow() [2/2]

void encrypto::motion::BitMatrix::AppendRow ( const AlignedBitVector & bit_vector )

Appends a new row by copying the input bit_vector to the matrix.

Parameters

bit_vector The new row.

Precondition: Size of bit_vector must be equal to the number of columns in the matrix.

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◆ AsString()

std::string encrypto::motion::BitMatrix::AsString ( ) const

Return a string representation of the BitMatrix.

◆ ForceSetNumColumns()

void encrypto::motion::BitMatrix::ForceSetNumColumns ( std::size_t n )

inline

Force the number of columns to be equal to n.

Parameters

n

◆ Get()

bool encrypto::motion::BitMatrix::Get	(	std::size_t	row_i,
		std::size_t	column_i
	)		const

inline

Get Bit at input position.

Parameters

row_i
column_i

◆ GetMutableRow()

AlignedBitVector& encrypto::motion::BitMatrix::GetMutableRow ( std::size_t i )

inline

Returns a mutable AlignedBitVector reference to row i of the matrix.

Note: Changing the size of the underlying BitVector causes Undefined Behaviour. The underlying BitVector can be replaced completely by a BitVector of the same size.

Parameters

i

◆ GetNumColumns()

auto encrypto::motion::BitMatrix::GetNumColumns ( ) const

inlinenoexcept

Get number of columns in the BitMatrix.

◆ GetNumRows()

auto encrypto::motion::BitMatrix::GetNumRows ( ) const

inlinenoexcept

Get number of rows in the BitMatrix.

◆ GetRow()

const AlignedBitVector& encrypto::motion::BitMatrix::GetRow ( std::size_t i ) const

inline

Returns a const AlignedBitVector reference to row i of the matrix.

Parameters

i

◆ operator!=()

bool encrypto::motion::BitMatrix::operator!= ( const BitMatrix & other ) const

inline

Compare with another BitMatrix for inequality.

Parameters

other

◆ operator=() [1/2]

void encrypto::motion::BitMatrix::operator= ( BitMatrix && other )

inline

◆ operator=() [2/2]

void encrypto::motion::BitMatrix::operator= ( const BitMatrix & other )

inline

◆ operator==()

bool encrypto::motion::BitMatrix::operator== ( const BitMatrix & other ) const

Compare with another BitMatrix for equality.

Parameters

other

◆ ReceiverTransposeAndEncrypt()

void encrypto::motion::BitMatrix::ReceiverTransposeAndEncrypt	(	const std::array< const std::byte *, 128 > &	matrix,
		std::vector< BitVector<>> &	output,
		primitives::Prg &	prg_fixed_key,
		const std::size_t	number_of_columns,
		const std::vector< std::size_t > &	bitlengths
	)

static

Transposes a matrix of 128 rows and arbitrary column size and encrypts it for the recepient role.

Parameters

matrix

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◆ SenderTransposeAndEncrypt()

void encrypto::motion::BitMatrix::SenderTransposeAndEncrypt	(	const std::array< const std::byte *, 128 > &	matrix,
		std::vector< BitVector<>> &	y0,
		std::vector< BitVector<>> &	y1,
		const BitVector<>	choices,
		primitives::Prg &	prg_fixed_key,
		const std::size_t	number_of_columns,
		const std::vector< std::size_t > &	bitlengths
	)

static

Transposes a matrix of 128 rows and arbitrary column size and encrypts it for the sender role.

Parameters

matrix

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◆ Set()

void encrypto::motion::BitMatrix::Set	(	std::size_t	row_i,
		std::size_t	column_i,
		bool	value
	)

inline

Set or unset bit at input position.

Parameters

row_i
column_i
value

◆ Transpose()

void encrypto::motion::BitMatrix::Transpose ( )

Transposes the matrix inplace.

◆ Transpose128Rows()

void encrypto::motion::BitMatrix::Transpose128Rows ( )

Transposes a matrix with exactly 128 rows (faster).

Precondition: The matrix has exactly 128 rows and at least 1 column.

◆ Transpose128RowsInplace()

void encrypto::motion::BitMatrix::Transpose128RowsInplace	(	std::array< std::byte *, 128 > &	matrix,
		std::size_t	number_of_columns
	)

static

Transposes a matrix of 128 rows and arbitrary column size inplace.

Parameters

matrix
number_of_columns

Precondition: All rows must be of equal size.

◆ TransposeUsingBitSlicing()

void encrypto::motion::BitMatrix::TransposeUsingBitSlicing	(	std::array< std::byte *, 128 > &	matrix,
		std::size_t	number_of_columns
	)

static

Transposes a matrix of 128 rows and arbitrary column size inplace using BitSlicing.

Parameters

matrix
number_of_columns

Precondition: All rows must be of size equal to number_of_colums.

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

Public Member Functions

Static Public Member Functions

Constructor & Destructor Documentation

◆ BitMatrix() [1/6]

◆ BitMatrix() [2/6]

◆ BitMatrix() [3/6]

◆ BitMatrix() [4/6]

◆ BitMatrix() [5/6]

◆ BitMatrix() [6/6]

Member Function Documentation

◆ AppendColumn() [1/2]

◆ AppendColumn() [2/2]

◆ AppendRow() [1/2]

◆ AppendRow() [2/2]

◆ AsString()

◆ ForceSetNumColumns()

◆ Get()

◆ GetMutableRow()

◆ GetNumColumns()

◆ GetNumRows()

◆ GetRow()

◆ operator!=()

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ operator==()

◆ ReceiverTransposeAndEncrypt()

◆ SenderTransposeAndEncrypt()

◆ Set()

◆ Transpose()

◆ Transpose128Rows()

◆ Transpose128RowsInplace()

◆ TransposeUsingBitSlicing()