Class KemSender

java.lang.Object

net.jrodolfo.java_evolution.java21.key_encapsulation.KemSender

public class KemSender
extends Object

Represents the sender side of a Java 21 KEM exchange.

The sender receives the receiver's public key, creates a shared secret, and creates an encapsulation message. The sender keeps the shared secret locally and sends only the encapsulation message to the receiver.

Method Summary

Modifier and Type	Method	Description
EncapsulatedSecret	encapsulate()	Creates the sender-side secret and the encapsulation message.
static KemSender	forReceiver(PublicKey receiverPublicKey)	Creates a sender that can encapsulate a secret for the supplied receiver.
String	providerName()	Returns the provider name selected by the Java Cryptography Architecture.

Methods inherited from class Object

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

Method Details

forReceiver

public static KemSender forReceiver(PublicKey receiverPublicKey)
                             throws NoSuchAlgorithmException,
InvalidKeyException

Creates a sender that can encapsulate a secret for the supplied receiver.

Parameters:

receiverPublicKey - the public key published by the receiver

Returns:

a sender bound to the receiver public key

Throws:

NoSuchAlgorithmException - if DHKEM is not available from the active providers

InvalidKeyException - if the public key cannot be used for DHKEM

encapsulate

public EncapsulatedSecret encapsulate()

Creates the sender-side secret and the encapsulation message.

Returns:

the shared secret and the message that should be sent to the receiver

providerName

public String providerName()

Returns the provider name selected by the Java Cryptography Architecture.

Returns:

the provider that implements this KEM operation