Package edu.fiu.adwise.homomorphic_encryption.paillier

Class PaillierKeyPairGenerator

java.lang.Object

java.security.KeyPairGeneratorSpi

edu.fiu.adwise.homomorphic_encryption.paillier.PaillierKeyPairGenerator

All Implemented Interfaces:

CipherConstants

public class PaillierKeyPairGenerator
extends KeyPairGeneratorSpi
implements CipherConstants

This class is responsible for generating Paillier key pairs (public and private keys) used in the Paillier cryptosystem. It extends the KeyPairGeneratorSpi class and implements the CipherConstants interface.

Field Summary

Fields inherited from interface edu.fiu.adwise.homomorphic_encryption.misc.CipherConstants

BILLION, CERTAINTY, EIGHT, FIELD_SIZE, FIVE, FOUR, KEY_SIZE, NEG_ONE, THREE, TWO

Constructor Summary

Constructors

Constructor	Description
PaillierKeyPairGenerator()

Method Summary

Modifier and Type	Method	Description
KeyPair	generateKeyPair()	Generates a Paillier key pair (public and private keys).
void	initialize(int key_size, SecureRandom random)	Initializes the Paillier key pair generator with the specified key size and random number generator.
static void	main(String[] args)	Main method to generate and save Paillier public and private keys to files.

Methods inherited from class java.security.KeyPairGeneratorSpi

initialize

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

PaillierKeyPairGenerator

public PaillierKeyPairGenerator()

Method Details

main

public static void main(String[] args)

Main method to generate and save Paillier public and private keys to files.

Parameters:

args - Command-line arguments (not used).

initialize

public void initialize(int key_size,
 SecureRandom random)

Initializes the Paillier key pair generator with the specified key size and random number generator.

Specified by:

initialize in class KeyPairGeneratorSpi

Parameters:

key_size - The size of the key in bits. Must be an even number and at least KEY_SIZE.

random - The SecureRandom instance to use for key generation. Can be null.

Throws:

IllegalArgumentException - If the key size is not even or is less than KEY_SIZE.

generateKeyPair

public KeyPair generateKeyPair()

Generates a Paillier key pair (public and private keys).

Specified by:

generateKeyPair in class KeyPairGeneratorSpi

Returns:

A KeyPair containing the Paillier public and private keys.