62 lines
2.7 KiB
Java
62 lines
2.7 KiB
Java
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package org.bouncycastle.crypto.tls;
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import java.math.BigInteger;
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import org.bouncycastle.crypto.BasicAgreement;
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import org.bouncycastle.crypto.agreement.DHBasicAgreement;
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import org.bouncycastle.crypto.agreement.ECDHBasicAgreement;
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import org.bouncycastle.crypto.params.AsymmetricKeyParameter;
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import org.bouncycastle.crypto.params.DHPrivateKeyParameters;
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import org.bouncycastle.crypto.params.ECPrivateKeyParameters;
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import org.bouncycastle.util.BigIntegers;
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/* loaded from: classes6.dex */
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public class DefaultTlsAgreementCredentials extends AbstractTlsAgreementCredentials {
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protected BasicAgreement basicAgreement;
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protected Certificate certificate;
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protected AsymmetricKeyParameter privateKey;
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protected boolean truncateAgreement;
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@Override // org.bouncycastle.crypto.tls.TlsCredentials
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public Certificate getCertificate() {
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return this.certificate;
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}
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@Override // org.bouncycastle.crypto.tls.TlsAgreementCredentials
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public byte[] generateAgreement(AsymmetricKeyParameter asymmetricKeyParameter) {
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this.basicAgreement.init(this.privateKey);
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BigInteger calculateAgreement = this.basicAgreement.calculateAgreement(asymmetricKeyParameter);
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return this.truncateAgreement ? BigIntegers.asUnsignedByteArray(calculateAgreement) : BigIntegers.asUnsignedByteArray(this.basicAgreement.getFieldSize(), calculateAgreement);
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}
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public DefaultTlsAgreementCredentials(Certificate certificate, AsymmetricKeyParameter asymmetricKeyParameter) {
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boolean z;
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if (certificate == null) {
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throw new IllegalArgumentException("'certificate' cannot be null");
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}
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if (certificate.isEmpty()) {
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throw new IllegalArgumentException("'certificate' cannot be empty");
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}
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if (asymmetricKeyParameter == null) {
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throw new IllegalArgumentException("'privateKey' cannot be null");
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}
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if (!asymmetricKeyParameter.isPrivate()) {
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throw new IllegalArgumentException("'privateKey' must be private");
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}
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if (asymmetricKeyParameter instanceof DHPrivateKeyParameters) {
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this.basicAgreement = new DHBasicAgreement();
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z = true;
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} else {
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if (!(asymmetricKeyParameter instanceof ECPrivateKeyParameters)) {
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StringBuilder sb = new StringBuilder("'privateKey' type not supported: ");
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sb.append(asymmetricKeyParameter.getClass().getName());
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throw new IllegalArgumentException(sb.toString());
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}
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this.basicAgreement = new ECDHBasicAgreement();
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z = false;
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}
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this.truncateAgreement = z;
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this.certificate = certificate;
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this.privateKey = asymmetricKeyParameter;
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}
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}
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