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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8.

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package org.bouncycastle.crypto.agreement.jpake;

import java.math.BigInteger;

/**
 * The payload sent/received during the optional third round of a J-PAKE exchange,
 * which is for explicit key confirmation.
 * 

* Each {@link JPAKEParticipant} creates and sends an instance * of this payload to the other {@link JPAKEParticipant}. * The payload to send should be created via * {@link JPAKEParticipant#createRound3PayloadToSend(BigInteger)} *

* Each {@link JPAKEParticipant} must also validate the payload * received from the other {@link JPAKEParticipant}. * The received payload should be validated via * {@link JPAKEParticipant#validateRound3PayloadReceived(JPAKERound3Payload, BigInteger)} */ public class JPAKERound3Payload { /** * The id of the {@link JPAKEParticipant} who created/sent this payload. */ private final String participantId; /** * The value of MacTag, as computed by round 3. * * @see JPAKEUtil#calculateMacTag(String, String, BigInteger, BigInteger, BigInteger, BigInteger, BigInteger, org.bouncycastle.crypto.Digest) */ private final BigInteger macTag; public JPAKERound3Payload(String participantId, BigInteger magTag) { this.participantId = participantId; this.macTag = magTag; } public String getParticipantId() { return participantId; } public BigInteger getMacTag() { return macTag; } }





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