Package org.bouncycastle.pqc.crypto.xwing

Class XWingKEMExtractor

java.lang.Object

org.bouncycastle.pqc.crypto.xwing.XWingKEMExtractor

All Implemented Interfaces:

EncapsulatedSecretExtractor

public class XWingKEMExtractor
extends Object
implements EncapsulatedSecretExtractor

Implements the decapsulation process of the X-Wing hybrid Key Encapsulation Mechanism (KEM).

This class allows the recipient to derive the shared secret from a given ciphertext using their private key, as defined in the X-Wing KEM specification.

See Also:

• X-Wing KEM Draft

Constructor Summary

Constructors

Constructor	Description
XWingKEMExtractor(XWingPrivateKeyParameters privParams)

Method Summary

Modifier and Type	Method	Description
byte[]	extractSecret(byte[] encapsulation)	Extract the secret based on the recipient private key.
int	getEncapsulationLength()	Return the length in bytes of the encapsulation.

Methods inherited from class java.lang.Object

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

Constructor Details

XWingKEMExtractor

public XWingKEMExtractor(XWingPrivateKeyParameters privParams)

Method Details

extractSecret

public byte[] extractSecret(byte[] encapsulation)

Description copied from interface: EncapsulatedSecretExtractor

Extract the secret based on the recipient private key.

Specified by:

extractSecret in interface EncapsulatedSecretExtractor

Parameters:

encapsulation - the encapsulated secret.

getEncapsulationLength

public int getEncapsulationLength()

Description copied from interface: EncapsulatedSecretExtractor

Return the length in bytes of the encapsulation.

Specified by:

getEncapsulationLength in interface EncapsulatedSecretExtractor

Returns:

length in bytes of an encapsulation for this parameter set.