HEaaN::Ciphertext Class Reference

A class of ciphertexts each of which contains a vector of polynomials of length > 1. More...

#include <Ciphertext.hpp>

Public Member Functions
	Ciphertext (const Context &context, bool is_extended=false)
ParameterPreset	getParameterPreset () const
u64	getSize () const
	Get the size of a ciphertext. More...
void	setSize (u64 size)
	Set the size of a ciphertext. More...
void	setLogSlots (u64 log_slots)
	Set log(number of slots) of a ciphertext. More...
u64	getLogSlots () const
	Get log(number of slots) of a ciphertext. More...
u64	getNumberOfSlots () const
u64	getCurrentPrime () const
	Get prime of current level. More...
Real	getCurrentScaleFactor () const
	Get scale factor of current level. More...
Polynomial &	getPoly (u64 i)
	Get the i-th part of ciphertext. More...
const Polynomial &	getPoly (u64 i) const
	Get the i-th part of ciphertext. More...
u64 *	getPolyData (u64 i, u64 level) const
	Get the level -th data of the i-th part. More...
bool	isModUp () const
	True if it is a mod-up ciphertext, False otherwise. More...
void	save (const std::string &path) const
	Save a ciphertext to a file. More...
void	save (std::ostream &stream) const
	Save a ciphertext. More...
void	load (const std::string &path)
	Load a ciphertext from a file. More...
void	load (std::istream &stream)
	Load a ciphertext. More...
int	getRescaleCounter () const
	Rescaling flag. More...
void	setRescaleCounter (int r_counter)
	set rescale counter More...
u64	getLevel () const
	Get level of a cipherext. More...
void	setLevel (u64 level)
	Set level of a ciphertext. More...
const Device &	getDevice () const
	Get device which a ciphertext reside in. More...
void	to (const Device &device)
	Send a ciphertext to given device. More...
void	allocate (const Device &device)
	Allocate memory for a ciphertext at given device. More...

Private Member Functions
	Ciphertext (const Context &context, const Ciphertext &ctxt)
	Construct a Ciphertext containing polynomial of same value only valid when the input ciphertext constructed for context sharing primes. More...

Private Attributes
Pointer< CiphertextImpl >	impl_

Friends
class	BootstrapperImpl

Detailed Description

A class of ciphertexts each of which contains a vector of polynomials of length > 1.

Constructor & Destructor Documentation

Ciphertext() [1/2]

HEaaN::Ciphertext::Ciphertext ( const Context &  context, bool  is_extended = false  )

explicit

Ciphertext() [2/2]

HEaaN::Ciphertext::Ciphertext ( const Context &  context, const Ciphertext &  ctxt  )

explicitprivate

Construct a Ciphertext containing polynomial of same value only valid when the input ciphertext constructed for context sharing primes.

Member Function Documentation

allocate()

void HEaaN::Ciphertext::allocate

(

const Device &

device

)

Allocate memory for a ciphertext at given device.

Parameters

[in]

device

getCurrentPrime()

u64 HEaaN::Ciphertext::getCurrentPrime

(

)

const

Get prime of current level.

getCurrentScaleFactor()

Real HEaaN::Ciphertext::getCurrentScaleFactor

(

)

const

Get scale factor of current level.

getDevice()

const Device& HEaaN::Ciphertext::getDevice

(

)

const

Get device which a ciphertext reside in.

Returns

The device in which the ciphertext resides

getLevel()

u64 HEaaN::Ciphertext::getLevel

(

)

const

Get level of a cipherext.

Returns

The current level of the ciphertext.

getLogSlots()

u64 HEaaN::Ciphertext::getLogSlots

(

)

const

Get log(number of slots) of a ciphertext.

Returns

log(number of slots)

getNumberOfSlots()

u64 HEaaN::Ciphertext::getNumberOfSlots

(

)

const

getParameterPreset()

ParameterPreset HEaaN::Ciphertext::getParameterPreset

(

)

const

getPoly() [1/2]

Polynomial& HEaaN::Ciphertext::getPoly

(

u64

i

)

Get the i-th part of ciphertext.

getPoly() [2/2]

const Polynomial& HEaaN::Ciphertext::getPoly

(

u64

i

)

const

Get the i-th part of ciphertext.

getPolyData()

u64* HEaaN::Ciphertext::getPolyData	(	u64	i,
		u64	level
	)		const

Get the level -th data of the i-th part.

the level -th data is a modulo q_{level} information of the polynomial

getRescaleCounter()

int HEaaN::Ciphertext::getRescaleCounter

(

)

const

Rescaling flag.

Returns

The amount of extra deltas multiplied.

getSize()

u64 HEaaN::Ciphertext::getSize

(

)

const

Get the size of a ciphertext.

isModUp()

bool HEaaN::Ciphertext::isModUp

(

)

const

True if it is a mod-up ciphertext, False otherwise.

load() [1/2]

void HEaaN::Ciphertext::load

(

const std::string &

path

)

Load a ciphertext from a file.

load() [2/2]

void HEaaN::Ciphertext::load

(

std::istream &

stream

)

Load a ciphertext.

save() [1/2]

void HEaaN::Ciphertext::save

(

const std::string &

path

)

const

Save a ciphertext to a file.

save() [2/2]

void HEaaN::Ciphertext::save

(

std::ostream &

stream

)

const

Save a ciphertext.

setLevel()

void HEaaN::Ciphertext::setLevel

(

u64

level

)

Set level of a ciphertext.

Parameters

[in]

level

setLogSlots()

void HEaaN::Ciphertext::setLogSlots

(

u64

log_slots

)

Set log(number of slots) of a ciphertext.

Parameters

[in]

log_slots

setRescaleCounter()

void HEaaN::Ciphertext::setRescaleCounter

(

int

r_counter

)

set rescale counter

setSize()

void HEaaN::Ciphertext::setSize

(

u64

size

)

Set the size of a ciphertext.

Exceptions

if	the size is less than 2.

to()

void HEaaN::Ciphertext::to

(

const Device &

device

)

Send a ciphertext to given device.

Parameters

[in]

device

Friends And Related Function Documentation

BootstrapperImpl

friend class BootstrapperImpl

friend

Member Data Documentation

impl_

Pointer<CiphertextImpl> HEaaN::Ciphertext::impl_

private

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

• include/HEaaN/Ciphertext.hpp