Serialized Form

Package edu.fiu.adwise.homomorphic_encryption.dgk

Class edu.fiu.adwise.homomorphic_encryption.dgk.DGKPrivateKey

class DGKPrivateKey extends Object implements Serializable

serialVersionUID:

4574519230502483629L

Serialized Fields

bigU

BigInteger bigU

The BigInteger representation of the upper bound \( u \).

g

BigInteger g

The generator \( g \) used in the encryption scheme.

h

BigInteger h

An auxiliary generator \( h \) used in the encryption scheme.

k

int k

The key length \( k \) used in the encryption scheme.

l

int l

The bit length of plaintext values.

LUT

Map<BigInteger,Long> LUT

The lookup table (LUT) for decryption, mapping ciphertext values to plaintext values.

n

BigInteger n

The modulus \( n \) used in the encryption scheme.

p

BigInteger p

The first prime factor of the modulus \( n \).

q

BigInteger q

The second prime factor of the modulus \( n \).

t

int t

The security parameter \( t \) used in the encryption scheme.

u

long u

The upper bound for plaintext values in the encryption scheme.

v

BigInteger v

The product of \( vp \) and \( vq \), used for decryption.

vp

BigInteger vp

A precomputed value for decryption using the first prime factor \( p \).

vq

BigInteger vq

A precomputed value for decryption using the second prime factor \( q \).

Class edu.fiu.adwise.homomorphic_encryption.dgk.DGKPublicKey

class DGKPublicKey extends Object implements Serializable

serialVersionUID:

-1613333167285302035L

Serialized Fields

bigU

BigInteger bigU

The order of the subgroup as a BigInteger.

g

BigInteger g

The generator \( g \) used in the DGK cryptosystem.

gLUT

HashMap<Long,BigInteger> gLUT

The lookup table for \( g^i \mod n \) values.

h

BigInteger h

The secondary generator \( h \) used in the DGK cryptosystem.

hLUT

HashMap<Long,BigInteger> hLUT

The lookup table for \( h^i \mod n \) values.

k

int k

The key length used in the DGK cryptosystem.

l

int l

The bit length of plaintext values.

n

BigInteger n

The modulus \( n \) used in the DGK cryptosystem.

ONE

BigInteger ONE

The encrypted representation of the value 1.

t

int t

The security parameter used in the DGK cryptosystem.

u

long u

The order of the subgroup as a long value.

ZERO

BigInteger ZERO

The encrypted representation of the value 0.

Package edu.fiu.adwise.homomorphic_encryption.elgamal

Class edu.fiu.adwise.homomorphic_encryption.elgamal.ElGamal_Ciphertext

class ElGamal_Ciphertext extends Object implements Serializable

serialVersionUID:

-4168027417302369803L

Serialized Fields

gr

BigInteger gr

The first component of the ciphertext, g^r.

hrgm

BigInteger hrgm

The second component of the ciphertext, m * h^r or g^m * h^r.

Class edu.fiu.adwise.homomorphic_encryption.elgamal.ElGamalPrivateKey

class ElGamalPrivateKey extends Object implements Serializable

serialVersionUID:

9160045368787508459L

Serialized Fields

additive

boolean additive

Indicates whether additive homomorphic encryption is enabled.

g

BigInteger g

The generator \( g \) used in the ElGamal encryption scheme.

h

BigInteger h

The public key component \( h \) derived from \( g^x \mod p \).

LUT

Map<BigInteger,BigInteger> LUT

The lookup table mapping \( g^m \mod p \) to \( m \) for decryption.

p

BigInteger p

The prime modulus \( p \) used in the ElGamal encryption scheme.

x

BigInteger x

The private key parameter \( x \) used in the ElGamal encryption scheme.

Class edu.fiu.adwise.homomorphic_encryption.elgamal.ElGamalPublicKey

class ElGamalPublicKey extends Object implements Serializable

serialVersionUID:

-6796919675914392847L

Serialized Fields

additive

boolean additive

Indicates whether additive homomorphic encryption is enabled.

g

BigInteger g

The generator \( g \) used in the ElGamal encryption scheme.

h

BigInteger h

The public key component \( h \) derived from \( g^x \mod p \).

p

BigInteger p

The prime modulus \( p \) used in the ElGamal encryption scheme.

Package edu.fiu.adwise.homomorphic_encryption.gm

Class edu.fiu.adwise.homomorphic_encryption.gm.GMPrivateKey

class GMPrivateKey extends Object implements Serializable

serialVersionUID:

-6003066379615503599L

Serialized Fields

n

BigInteger n

The modulus \( n \), computed as the product of \( p \) and \( q \).

p

BigInteger p

The first prime factor of the modulus \( n \).

q

BigInteger q

The second prime factor of the modulus \( n \).

Class edu.fiu.adwise.homomorphic_encryption.gm.GMPublicKey

class GMPublicKey extends Object implements Serializable

serialVersionUID:

-235857914395127699L

Serialized Fields

n

BigInteger n

The modulus \( n \), which is the product of two large primes.

y

BigInteger y

A quadratic non-residue modulo \( n \), used in the encryption process.

Package edu.fiu.adwise.homomorphic_encryption.misc

Exception edu.fiu.adwise.homomorphic_encryption.misc.HomomorphicException

class HomomorphicException extends Exception implements Serializable

serialVersionUID:

8999421918165322916L

Package edu.fiu.adwise.homomorphic_encryption.paillier

Class edu.fiu.adwise.homomorphic_encryption.paillier.PaillierPrivateKey

class PaillierPrivateKey extends Object implements Serializable

serialVersionUID:

-3342551807566493368L

Serialized Fields

alpha

BigInteger alpha

The smallest divisor of lcm(\( p-1 \), \( q-1 \)).

g

BigInteger g

The generator \( g \), used in the encryption process.

key_size

int key_size

The security parameter \( k_1 \), representing the number of bits in \( n \).

lambda

BigInteger lambda

The Carmichael's function value \( \lambda \), calculated as lcm(\( p-1 \), \( q-1 \)).

modulus

BigInteger modulus

The modulus \( n^2 \), used in the Paillier cryptosystem.

mu

BigInteger mu

The modular inverse of \( \lambda \) modulo \( n \).

n

BigInteger n

The value of \( n \), which is the product of two large primes \( p \) and \( q \).

rho

BigInteger rho

The precomputed value \( \rho \), used for decryption optimization.

Class edu.fiu.adwise.homomorphic_encryption.paillier.PaillierPublicKey

class PaillierPublicKey extends Object implements Serializable

serialVersionUID:

-4009702553030484256L

Serialized Fields

g

BigInteger g

The generator g used in the Paillier cryptosystem.

key_size

int key_size

The size of the key in bits.

modulus

BigInteger modulus

The modulus, which is n^2

n

BigInteger n

The value of n, which is the product of two large primes (p and q).

ZERO

BigInteger ZERO

Cached value representing the encryption of zero.