HEaaN::Encryptor Class Reference

Abstract entity for encrypting messages into ciphertexts. More...

#include <Encryptor.hpp>

Public Member Functions
	Encryptor (const Context &context)
void	encrypt (const Message &msg, const SecretKey &sk, Ciphertext &ctxt) const
	Encrypt a message using a secret key, to the maximal supported level, to rescale counter zero. More...
void	encrypt (const Message &msg, const SecretKey &sk, Ciphertext &ctxt, u64 level, int r_counter=0) const
	Encrypt a message using a secret key, to a certain level, to a certain rescale counter. More...
void	encrypt (const Message &msg, const KeyPack &keypack, Ciphertext &ctxt) const
	Encrypt a message using a keypack (Public key encryption), to the maximal supported level, to rescale counter zero. More...
void	encrypt (const Message &msg, const KeyPack &keypack, Ciphertext &ctxt, u64 level, int r_counter=0) const
	Encrypt a message using a keypack (Public key encryption), to a certain level, to a certain rescale counter. More...
void	encrypt (const Plaintext &ptxt, const SecretKey &sk, Ciphertext &ctxt) const
	Encrypt a plaintext using a secret key. More...
void	encrypt (const Plaintext &ptxt, const KeyPack &keypack, Ciphertext &ctxt) const
	Encrypt a plaintext using an encryption key. More...

Private Attributes
const Context	context_
	A context with which Encryptor is associated. More...

Detailed Description

Abstract entity for encrypting messages into ciphertexts.

Constructor & Destructor Documentation

Encryptor()

HEaaN::Encryptor::Encryptor ( const Context &  context )

explicit

Member Function Documentation

encrypt() [1/6]

void HEaaN::Encryptor::encrypt	(	const Message &	msg,
		const KeyPack &	keypack,
		Ciphertext &	ctxt
	)		const

Encrypt a message using a keypack (Public key encryption), to the maximal supported level, to rescale counter zero.

Parameters

[in]	msg
[in]	keypack
[out]	ctxt

Exceptions

RuntimeException

if msg and key are at different devices.

encrypt() [2/6]

void HEaaN::Encryptor::encrypt	(	const Message &	msg,
		const KeyPack &	keypack,
		Ciphertext &	ctxt,
		u64	level,
		int	r_counter = 0
	)		const

Encrypt a message using a keypack (Public key encryption), to a certain level, to a certain rescale counter.

Parameters

[in]	msg
[in]	keypack
[in]	level
[in]	r_counter
[out]	ctxt

Exceptions

RuntimeException

if msg and key are at different devices.

encrypt() [3/6]

void HEaaN::Encryptor::encrypt	(	const Message &	msg,
		const SecretKey &	sk,
		Ciphertext &	ctxt
	)		const

Encrypt a message using a secret key, to the maximal supported level, to rescale counter zero.

Parameters

[in]	msg
[in]	sk
[out]	ctxt

Exceptions

RuntimeException

if msg and key are at different devices.

encrypt() [4/6]

void HEaaN::Encryptor::encrypt	(	const Message &	msg,
		const SecretKey &	sk,
		Ciphertext &	ctxt,
		u64	level,
		int	r_counter = 0
	)		const

Encrypt a message using a secret key, to a certain level, to a certain rescale counter.

Parameters

[in]	msg
[in]	sk
[in]	level
[in]	r_counter
[out]	ctxt

Exceptions

RuntimeException

if msg and key are at different devices.

encrypt() [5/6]

void HEaaN::Encryptor::encrypt	(	const Plaintext &	ptxt,
		const KeyPack &	keypack,
		Ciphertext &	ctxt
	)		const

Encrypt a plaintext using an encryption key.

compute (va + e_1, vb + e_2 + m) where (a, b) = (a, -as + e_0) is an encryption key

Exceptions

RuntimeException

if ptxt and key are at different devices.

encrypt() [6/6]

void HEaaN::Encryptor::encrypt	(	const Plaintext &	ptxt,
		const SecretKey &	sk,
		Ciphertext &	ctxt
	)		const

Encrypt a plaintext using a secret key.

compute (a, -as + e + m)

Exceptions

RuntimeException

if ptxt and key are at different devices.

Member Data Documentation

context_

const Context HEaaN::Encryptor::context_

private

A context with which Encryptor is associated.

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

• include/HEaaN/Encryptor.hpp