org.bouncycastle.crypto.agreement.jpake.JPAKERound3Payload Maven / Gradle / Ivy
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;
}
}