Bouncy Castle Cryptography Library 1.80 · org.bouncycastle.crypto.agreement.jpake.JPAKERound2Payload

public Class JPAKERound2Payload

The payload sent/received during the second round of a J-PAKE exchange.

Each JPAKEParticipant creates and sends an instance of this payload to the other JPAKEParticipant. The payload to send should be created via JPAKEParticipant#createRound2PayloadToSend()

Each JPAKEParticipant must also validate the payload received from the other JPAKEParticipant. The received payload should be validated via JPAKEParticipant#validateRound2PayloadReceived(JPAKERound2Payload)

Field Summary

Modifier and Type	Field and Description
private final BigInteger	a The value of A, as computed during round 2.
private final BigInteger[]	knowledgeProofForX2s The zero knowledge proof for x2 * s.
private final String	participantId The id of the `JPAKEParticipant` who created/sent this payload.

Access	Constructor and Description
public	JPAKERound2Payload(String participantId, BigInteger a, BigInteger[] knowledgeProofForX2s)

Modifier and Type

Method and Description

public String

a	back to summary
private final BigInteger a The value of A, as computed during round 2.

knowledgeProofForX2s	back to summary
private final BigInteger[] knowledgeProofForX2s The zero knowledge proof for x2 * s. This is a two element array, containing {g^v, r} for x2 * s.

knowledgeProofForX2s

private final BigInteger[] knowledgeProofForX2s

The zero knowledge proof for x2 * s.

This is a two element array, containing {g^v, r} for x2 * s.

participantId	back to summary
private final String participantId The id of the `JPAKEParticipant` who created/sent this payload.

JPAKERound2Payload	back to summary
public JPAKERound2Payload(String participantId, BigInteger a, BigInteger[] knowledgeProofForX2s)

getA	back to summary
public BigInteger getA()

getKnowledgeProofForX2s	back to summary
public BigInteger[] getKnowledgeProofForX2s()

getParticipantId	back to summary
public String getParticipantId()