Org.BouncyCastle.Crypto.Agreement.JPake.JPakeParticipant.ValidateRound2PayloadReceived C# (CSharp) Méthode

ValidateRound2PayloadReceived() public méthode

Validates the payload received from the other participant during round 2. Note that this DOES NOT detect a non-common password. The only indication of a non-common password is through derivation of different keys (which can be detected explicitly by executing round 3 and round 4) Must be called prior to CalculateKeyingMaterial(). After execution, the State state will be STATE_ROUND_2_VALIDATED. Throws CryptoException if validation fails. Throws InvalidOperationException if called prior to ValidateRound1PayloadReceived(JPakeRound1Payload), or multiple times
public ValidateRound2PayloadReceived ( Org.BouncyCastle.Crypto.Agreement.JPake.JPakeRound2Payload round2PayloadReceived ) : void
round2PayloadReceived Org.BouncyCastle.Crypto.Agreement.JPake.JPakeRound2Payload
Résultat void
        public virtual void ValidateRound2PayloadReceived(JPakeRound2Payload round2PayloadReceived)
        {
            if (this.state >= STATE_ROUND_2_VALIDATED)
                throw new InvalidOperationException("Validation already attempted for round 2 payload for " + this.participantId);
            if (this.state < STATE_ROUND_1_VALIDATED)
                throw new InvalidOperationException("Round 1 payload must be validated prior to validation round 2 payload for " + this.participantId);

            BigInteger gB = JPakeUtilities.CalculateGA(p, gx3, gx1, gx2);
            this.b = round2PayloadReceived.A;
            BigInteger[] knowledgeProofForX4s = round2PayloadReceived.KnowledgeProofForX2s;

            JPakeUtilities.ValidateParticipantIdsDiffer(participantId, round2PayloadReceived.ParticipantId);
            JPakeUtilities.ValidateParticipantIdsEqual(this.partnerParticipantId, round2PayloadReceived.ParticipantId);
            JPakeUtilities.ValidateGa(gB);
            JPakeUtilities.ValidateZeroKnowledgeProof(p, q, gB, b, knowledgeProofForX4s, round2PayloadReceived.ParticipantId, digest);

            this.state = STATE_ROUND_2_VALIDATED;
        }