55 lines
1.9 KiB
Java
55 lines
1.9 KiB
Java
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package org.bouncycastle.crypto.agreement.jpake;
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import com.pingan.ai.p;
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import java.math.BigInteger;
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/* loaded from: classes6.dex */
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public class JPAKEPrimeOrderGroup {
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private final BigInteger g;
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private final BigInteger p;
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private final BigInteger q;
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public BigInteger getQ() {
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return this.q;
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}
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public BigInteger getP() {
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return this.p;
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}
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public BigInteger getG() {
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return this.g;
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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public JPAKEPrimeOrderGroup(BigInteger bigInteger, BigInteger bigInteger2, BigInteger bigInteger3, boolean z) {
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JPAKEUtil.validateNotNull(bigInteger, p.a);
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JPAKEUtil.validateNotNull(bigInteger2, "q");
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JPAKEUtil.validateNotNull(bigInteger3, "g");
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if (!z) {
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if (!bigInteger.subtract(JPAKEUtil.ONE).mod(bigInteger2).equals(JPAKEUtil.ZERO)) {
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throw new IllegalArgumentException("p-1 must be evenly divisible by q");
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}
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if (bigInteger3.compareTo(BigInteger.valueOf(2L)) == -1 || bigInteger3.compareTo(bigInteger.subtract(JPAKEUtil.ONE)) == 1) {
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throw new IllegalArgumentException("g must be in [2, p-1]");
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}
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if (!bigInteger3.modPow(bigInteger2, bigInteger).equals(JPAKEUtil.ONE)) {
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throw new IllegalArgumentException("g^q mod p must equal 1");
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}
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if (!bigInteger.isProbablePrime(20)) {
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throw new IllegalArgumentException("p must be prime");
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}
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if (!bigInteger2.isProbablePrime(20)) {
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throw new IllegalArgumentException("q must be prime");
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}
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}
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this.p = bigInteger;
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this.q = bigInteger2;
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this.g = bigInteger3;
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}
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public JPAKEPrimeOrderGroup(BigInteger bigInteger, BigInteger bigInteger2, BigInteger bigInteger3) {
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this(bigInteger, bigInteger2, bigInteger3, false);
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}
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}
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