frodo2.algorithms.mpc_discsp.PaillierPublicKey Class Reference

A Paillier public key. More...

Inheritance diagram for frodo2.algorithms.mpc_discsp.PaillierPublicKey:

Public Member Functions
	PaillierPublicKey ()
	Empty constructor used for externalization.
	PaillierPublicKey (BigInteger n, BigInteger nsquare, int bitLength, BigInteger g)
	Constructor.
void	writeExternal (ObjectOutput out) throws IOException
void	readExternal (ObjectInput in) throws IOException, ClassNotFoundException
PaillierInteger	encrypt (BigInteger plaintext)
	Encrypts an integer.
PaillierInteger	fakeEncrypt (BigInteger plaintext)
	Fakes the encryption of an integer.
String	toString ()

Package Attributes
BigInteger	n
	The first part of the public encryption key.
BigInteger	nsquare
	n^2

Private Attributes
int	bitLength
	Number of bits of n.
BigInteger	g
	The second part of the public encryption key.
final SecureRandom	rand
	A source of randomness.

Detailed Description

A Paillier public key.

Author

Thomas Leaute

Constructor & Destructor Documentation

PaillierPublicKey() [1/2]

frodo2.algorithms.mpc_discsp.PaillierPublicKey.PaillierPublicKey

(

)

Empty constructor used for externalization.

PaillierPublicKey() [2/2]

frodo2.algorithms.mpc_discsp.PaillierPublicKey.PaillierPublicKey	(	BigInteger	n,
		BigInteger	nsquare,
		int	bitLength,
		BigInteger	g )

Constructor.

Parameters

n	The first part of the public encryption key
nsquare	n^2
bitLength	Number of bits of n
g	The second part of the public encryption key

References bitLength, g, n, and nsquare.

Member Function Documentation

encrypt()

PaillierInteger frodo2.algorithms.mpc_discsp.PaillierPublicKey.encrypt

(

BigInteger

plaintext

)

Encrypts an integer.

Parameters

plaintext

plaintext integer

Returns

cyphertext

References bitLength, g, n, and nsquare.

Referenced by frodo2.algorithms.mpc_discsp.MPC_DisCSP4< V extends Addable< V > >.nextMultiplication(), and frodo2.algorithms.mpc_discsp.MPC_DisCSP4< V extends Addable< V > >.notifyIn().

fakeEncrypt()

PaillierInteger frodo2.algorithms.mpc_discsp.PaillierPublicKey.fakeEncrypt

(

BigInteger

plaintext

)

Fakes the encryption of an integer.

Parameters

plaintext

plaintext integer

Returns

cyphertext

References g, and nsquare.

Referenced by frodo2.algorithms.mpc_discsp.MPC_DisCSP4< V extends Addable< V > >.nextMultiplication(), and frodo2.algorithms.mpc_discsp.MPC_DisCSP4< V extends Addable< V > >.notifyIn().

readExternal()

void frodo2.algorithms.mpc_discsp.PaillierPublicKey.readExternal

(

ObjectInput

in

)

throws IOException, ClassNotFoundException

See also

java.io.Externalizable#readExternal(java.io.ObjectInput)

toString()

String frodo2.algorithms.mpc_discsp.PaillierPublicKey.toString

(

)

See also

java.lang.Object#toString()

writeExternal()

void frodo2.algorithms.mpc_discsp.PaillierPublicKey.writeExternal

(

ObjectOutput

out

)

throws IOException

See also

java.io.Externalizable#writeExternal(java.io.ObjectOutput)

Member Data Documentation

bitLength

int frodo2.algorithms.mpc_discsp.PaillierPublicKey.bitLength

private

Number of bits of n.

Referenced by encrypt(), and PaillierPublicKey().

g

BigInteger frodo2.algorithms.mpc_discsp.PaillierPublicKey.g

private

The second part of the public encryption key.

Referenced by encrypt(), fakeEncrypt(), and PaillierPublicKey().

n

BigInteger frodo2.algorithms.mpc_discsp.PaillierPublicKey.n

package

The first part of the public encryption key.

Referenced by frodo2.algorithms.mpc_discsp.PaillierCryptoScheme.decrypt(), encrypt(), and PaillierPublicKey().

nsquare

BigInteger frodo2.algorithms.mpc_discsp.PaillierPublicKey.nsquare

package

n^2

Referenced by frodo2.algorithms.mpc_discsp.PaillierCryptoScheme.decrypt(), encrypt(), fakeEncrypt(), PaillierPublicKey(), and frodo2.algorithms.mpc_discsp.EncrSharesMsg.readExternal().

rand

final SecureRandom frodo2.algorithms.mpc_discsp.PaillierPublicKey.rand

private

A source of randomness.

---

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

• src/frodo2/algorithms/mpc_discsp/PaillierPublicKey.java