74 lines
3.2 KiB
Java
74 lines
3.2 KiB
Java
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package org.bouncycastle.crypto.tls;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.security.SecureRandom;
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import java.util.Hashtable;
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import java.util.Vector;
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import org.bouncycastle.util.Arrays;
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/* loaded from: classes6.dex */
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public abstract class DTLSProtocol {
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protected final SecureRandom secureRandom;
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/* JADX INFO: Access modifiers changed from: protected */
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public void processFinished(byte[] bArr, byte[] bArr2) throws IOException {
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ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bArr);
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byte[] readFully = TlsUtils.readFully(bArr2.length, byteArrayInputStream);
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TlsProtocol.assertEmpty(byteArrayInputStream);
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if (!Arrays.constantTimeAreEqual(bArr2, readFully)) {
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throw new TlsFatalAlert((short) 40);
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}
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}
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/* JADX INFO: Access modifiers changed from: protected */
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public static void validateSelectedCipherSuite(int i, short s) throws IOException {
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int encryptionAlgorithm = TlsUtils.getEncryptionAlgorithm(i);
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if (encryptionAlgorithm == 1 || encryptionAlgorithm == 2) {
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throw new TlsFatalAlert(s);
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}
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}
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/* JADX INFO: Access modifiers changed from: protected */
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public static byte[] generateSupplementalData(Vector vector) throws IOException {
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ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
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TlsProtocol.writeSupplementalData(byteArrayOutputStream, vector);
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return byteArrayOutputStream.toByteArray();
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}
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/* JADX INFO: Access modifiers changed from: protected */
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public static byte[] generateCertificate(Certificate certificate) throws IOException {
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ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
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certificate.encode(byteArrayOutputStream);
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return byteArrayOutputStream.toByteArray();
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}
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/* JADX INFO: Access modifiers changed from: protected */
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public static short evaluateMaxFragmentLengthExtension(boolean z, Hashtable hashtable, Hashtable hashtable2, short s) throws IOException {
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short maxFragmentLengthExtension = TlsExtensionsUtils.getMaxFragmentLengthExtension(hashtable2);
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if (maxFragmentLengthExtension < 0 || (MaxFragmentLength.isValid(maxFragmentLengthExtension) && (z || maxFragmentLengthExtension == TlsExtensionsUtils.getMaxFragmentLengthExtension(hashtable)))) {
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return maxFragmentLengthExtension;
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}
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throw new TlsFatalAlert(s);
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}
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/* JADX INFO: Access modifiers changed from: protected */
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public static void applyMaxFragmentLengthExtension(DTLSRecordLayer dTLSRecordLayer, short s) throws IOException {
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if (s >= 0) {
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if (!MaxFragmentLength.isValid(s)) {
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throw new TlsFatalAlert((short) 80);
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}
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dTLSRecordLayer.setPlaintextLimit(1 << (s + 8));
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}
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}
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/* JADX INFO: Access modifiers changed from: protected */
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public DTLSProtocol(SecureRandom secureRandom) {
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if (secureRandom == null) {
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throw new IllegalArgumentException("'secureRandom' cannot be null");
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}
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this.secureRandom = secureRandom;
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}
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}
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