197 lines
11 KiB
Java
197 lines
11 KiB
Java
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package org.bouncycastle.crypto.examples;
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import com.airbnb.deeplinkdispatch.UrlTreeKt;
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import java.io.PrintStream;
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import java.math.BigInteger;
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import java.security.SecureRandom;
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import org.bouncycastle.crypto.CryptoException;
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import org.bouncycastle.crypto.agreement.jpake.JPAKEParticipant;
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import org.bouncycastle.crypto.agreement.jpake.JPAKEPrimeOrderGroup;
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import org.bouncycastle.crypto.agreement.jpake.JPAKEPrimeOrderGroups;
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import org.bouncycastle.crypto.agreement.jpake.JPAKERound1Payload;
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import org.bouncycastle.crypto.agreement.jpake.JPAKERound2Payload;
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import org.bouncycastle.crypto.agreement.jpake.JPAKERound3Payload;
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import org.bouncycastle.crypto.digests.SHA256Digest;
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/* loaded from: classes6.dex */
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public class JPAKEExample {
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public static void main(String[] strArr) throws CryptoException {
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JPAKEPrimeOrderGroup jPAKEPrimeOrderGroup = JPAKEPrimeOrderGroups.NIST_3072;
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BigInteger p = jPAKEPrimeOrderGroup.getP();
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BigInteger q = jPAKEPrimeOrderGroup.getQ();
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BigInteger g = jPAKEPrimeOrderGroup.getG();
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System.out.println("********* Initialization **********");
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System.out.println("Public parameters for the cyclic group:");
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PrintStream printStream = System.out;
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StringBuilder sb = new StringBuilder("p (");
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sb.append(p.bitLength());
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sb.append(" bits): ");
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sb.append(p.toString(16));
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printStream.println(sb.toString());
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PrintStream printStream2 = System.out;
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StringBuilder sb2 = new StringBuilder("q (");
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sb2.append(q.bitLength());
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sb2.append(" bits): ");
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sb2.append(q.toString(16));
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printStream2.println(sb2.toString());
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PrintStream printStream3 = System.out;
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StringBuilder sb3 = new StringBuilder("g (");
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sb3.append(p.bitLength());
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sb3.append(" bits): ");
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sb3.append(g.toString(16));
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printStream3.println(sb3.toString());
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PrintStream printStream4 = System.out;
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StringBuilder sb4 = new StringBuilder("p mod q = ");
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sb4.append(p.mod(q).toString(16));
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printStream4.println(sb4.toString());
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PrintStream printStream5 = System.out;
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StringBuilder sb5 = new StringBuilder("g^{q} mod p = ");
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sb5.append(g.modPow(q, p).toString(16));
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printStream5.println(sb5.toString());
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System.out.println("");
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System.out.println("(Secret passwords used by Alice and Bob: \"password\" and \"password\")\n");
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SHA256Digest sHA256Digest = new SHA256Digest();
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SecureRandom secureRandom = new SecureRandom();
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JPAKEParticipant jPAKEParticipant = new JPAKEParticipant("alice", "password".toCharArray(), jPAKEPrimeOrderGroup, sHA256Digest, secureRandom);
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JPAKEParticipant jPAKEParticipant2 = new JPAKEParticipant("bob", "password".toCharArray(), jPAKEPrimeOrderGroup, sHA256Digest, secureRandom);
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JPAKERound1Payload createRound1PayloadToSend = jPAKEParticipant.createRound1PayloadToSend();
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JPAKERound1Payload createRound1PayloadToSend2 = jPAKEParticipant2.createRound1PayloadToSend();
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System.out.println("************ Round 1 **************");
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System.out.println("Alice sends to Bob: ");
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PrintStream printStream6 = System.out;
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StringBuilder sb6 = new StringBuilder("g^{x1}=");
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sb6.append(createRound1PayloadToSend.getGx1().toString(16));
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printStream6.println(sb6.toString());
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PrintStream printStream7 = System.out;
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StringBuilder sb7 = new StringBuilder("g^{x2}=");
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sb7.append(createRound1PayloadToSend.getGx2().toString(16));
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printStream7.println(sb7.toString());
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PrintStream printStream8 = System.out;
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StringBuilder sb8 = new StringBuilder("KP{x1}={");
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sb8.append(createRound1PayloadToSend.getKnowledgeProofForX1()[0].toString(16));
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sb8.append("};{");
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sb8.append(createRound1PayloadToSend.getKnowledgeProofForX1()[1].toString(16));
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sb8.append(UrlTreeKt.componentParamSuffix);
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printStream8.println(sb8.toString());
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PrintStream printStream9 = System.out;
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StringBuilder sb9 = new StringBuilder("KP{x2}={");
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sb9.append(createRound1PayloadToSend.getKnowledgeProofForX2()[0].toString(16));
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sb9.append("};{");
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sb9.append(createRound1PayloadToSend.getKnowledgeProofForX2()[1].toString(16));
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sb9.append(UrlTreeKt.componentParamSuffix);
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printStream9.println(sb9.toString());
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System.out.println("");
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System.out.println("Bob sends to Alice: ");
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PrintStream printStream10 = System.out;
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StringBuilder sb10 = new StringBuilder("g^{x3}=");
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sb10.append(createRound1PayloadToSend2.getGx1().toString(16));
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printStream10.println(sb10.toString());
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PrintStream printStream11 = System.out;
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StringBuilder sb11 = new StringBuilder("g^{x4}=");
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sb11.append(createRound1PayloadToSend2.getGx2().toString(16));
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printStream11.println(sb11.toString());
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PrintStream printStream12 = System.out;
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StringBuilder sb12 = new StringBuilder("KP{x3}={");
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sb12.append(createRound1PayloadToSend2.getKnowledgeProofForX1()[0].toString(16));
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sb12.append("};{");
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sb12.append(createRound1PayloadToSend2.getKnowledgeProofForX1()[1].toString(16));
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sb12.append(UrlTreeKt.componentParamSuffix);
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printStream12.println(sb12.toString());
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PrintStream printStream13 = System.out;
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StringBuilder sb13 = new StringBuilder("KP{x4}={");
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sb13.append(createRound1PayloadToSend2.getKnowledgeProofForX2()[0].toString(16));
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sb13.append("};{");
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sb13.append(createRound1PayloadToSend2.getKnowledgeProofForX2()[1].toString(16));
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sb13.append(UrlTreeKt.componentParamSuffix);
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printStream13.println(sb13.toString());
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System.out.println("");
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jPAKEParticipant.validateRound1PayloadReceived(createRound1PayloadToSend2);
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System.out.println("Alice checks g^{x4}!=1: OK");
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System.out.println("Alice checks KP{x3}: OK");
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System.out.println("Alice checks KP{x4}: OK");
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System.out.println("");
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jPAKEParticipant2.validateRound1PayloadReceived(createRound1PayloadToSend);
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System.out.println("Bob checks g^{x2}!=1: OK");
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System.out.println("Bob checks KP{x1},: OK");
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System.out.println("Bob checks KP{x2},: OK");
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System.out.println("");
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JPAKERound2Payload createRound2PayloadToSend = jPAKEParticipant.createRound2PayloadToSend();
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JPAKERound2Payload createRound2PayloadToSend2 = jPAKEParticipant2.createRound2PayloadToSend();
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System.out.println("************ Round 2 **************");
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System.out.println("Alice sends to Bob: ");
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PrintStream printStream14 = System.out;
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StringBuilder sb14 = new StringBuilder("A=");
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sb14.append(createRound2PayloadToSend.getA().toString(16));
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printStream14.println(sb14.toString());
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PrintStream printStream15 = System.out;
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StringBuilder sb15 = new StringBuilder("KP{x2*s}={");
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sb15.append(createRound2PayloadToSend.getKnowledgeProofForX2s()[0].toString(16));
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sb15.append("},{");
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sb15.append(createRound2PayloadToSend.getKnowledgeProofForX2s()[1].toString(16));
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sb15.append(UrlTreeKt.componentParamSuffix);
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printStream15.println(sb15.toString());
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System.out.println("");
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System.out.println("Bob sends to Alice");
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PrintStream printStream16 = System.out;
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StringBuilder sb16 = new StringBuilder("B=");
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sb16.append(createRound2PayloadToSend2.getA().toString(16));
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printStream16.println(sb16.toString());
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PrintStream printStream17 = System.out;
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StringBuilder sb17 = new StringBuilder("KP{x4*s}={");
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sb17.append(createRound2PayloadToSend2.getKnowledgeProofForX2s()[0].toString(16));
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sb17.append("},{");
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sb17.append(createRound2PayloadToSend2.getKnowledgeProofForX2s()[1].toString(16));
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sb17.append(UrlTreeKt.componentParamSuffix);
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printStream17.println(sb17.toString());
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System.out.println("");
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jPAKEParticipant.validateRound2PayloadReceived(createRound2PayloadToSend2);
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System.out.println("Alice checks KP{x4*s}: OK\n");
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jPAKEParticipant2.validateRound2PayloadReceived(createRound2PayloadToSend);
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System.out.println("Bob checks KP{x2*s}: OK\n");
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BigInteger calculateKeyingMaterial = jPAKEParticipant.calculateKeyingMaterial();
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BigInteger calculateKeyingMaterial2 = jPAKEParticipant2.calculateKeyingMaterial();
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System.out.println("********* After round 2 ***********");
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PrintStream printStream18 = System.out;
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StringBuilder sb18 = new StringBuilder("Alice computes key material \t K=");
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sb18.append(calculateKeyingMaterial.toString(16));
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printStream18.println(sb18.toString());
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PrintStream printStream19 = System.out;
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StringBuilder sb19 = new StringBuilder("Bob computes key material \t K=");
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sb19.append(calculateKeyingMaterial2.toString(16));
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printStream19.println(sb19.toString());
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System.out.println();
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deriveSessionKey(calculateKeyingMaterial);
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deriveSessionKey(calculateKeyingMaterial2);
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JPAKERound3Payload createRound3PayloadToSend = jPAKEParticipant.createRound3PayloadToSend(calculateKeyingMaterial);
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JPAKERound3Payload createRound3PayloadToSend2 = jPAKEParticipant2.createRound3PayloadToSend(calculateKeyingMaterial2);
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System.out.println("************ Round 3 **************");
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System.out.println("Alice sends to Bob: ");
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PrintStream printStream20 = System.out;
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StringBuilder sb20 = new StringBuilder("MacTag=");
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sb20.append(createRound3PayloadToSend.getMacTag().toString(16));
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printStream20.println(sb20.toString());
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System.out.println("");
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System.out.println("Bob sends to Alice: ");
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PrintStream printStream21 = System.out;
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StringBuilder sb21 = new StringBuilder("MacTag=");
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sb21.append(createRound3PayloadToSend2.getMacTag().toString(16));
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printStream21.println(sb21.toString());
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System.out.println("");
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jPAKEParticipant.validateRound3PayloadReceived(createRound3PayloadToSend2, calculateKeyingMaterial);
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System.out.println("Alice checks MacTag: OK\n");
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jPAKEParticipant2.validateRound3PayloadReceived(createRound3PayloadToSend, calculateKeyingMaterial2);
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System.out.println("Bob checks MacTag: OK\n");
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System.out.println();
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System.out.println("MacTags validated, therefore the keying material matches.");
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}
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private static BigInteger deriveSessionKey(BigInteger bigInteger) {
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SHA256Digest sHA256Digest = new SHA256Digest();
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byte[] byteArray = bigInteger.toByteArray();
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byte[] bArr = new byte[sHA256Digest.getDigestSize()];
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sHA256Digest.update(byteArray, 0, byteArray.length);
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sHA256Digest.doFinal(bArr, 0);
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return new BigInteger(bArr);
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}
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}
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