51 lines
1.4 KiB
Java
51 lines
1.4 KiB
Java
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package org.bouncycastle.crypto.tls;
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/* loaded from: classes6.dex */
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class DTLSReplayWindow {
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private static final long VALID_SEQ_MASK = 281474976710655L;
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private static final long WINDOW_SIZE = 64;
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private long latestConfirmedSeq = -1;
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private long bitmap = 0;
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/* JADX INFO: Access modifiers changed from: package-private */
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public boolean shouldDiscard(long j) {
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if ((VALID_SEQ_MASK & j) != j) {
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return true;
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}
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long j2 = this.latestConfirmedSeq;
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if (j > j2) {
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return false;
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}
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long j3 = j2 - j;
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return j3 >= WINDOW_SIZE || (this.bitmap & (1 << ((int) j3))) != 0;
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}
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void reset() {
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this.latestConfirmedSeq = -1L;
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this.bitmap = 0L;
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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public void reportAuthenticated(long j) {
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if ((VALID_SEQ_MASK & j) != j) {
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throw new IllegalArgumentException("'seq' out of range");
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}
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long j2 = this.latestConfirmedSeq;
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if (j <= j2) {
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long j3 = j2 - j;
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if (j3 < WINDOW_SIZE) {
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this.bitmap |= 1 << ((int) j3);
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return;
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}
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return;
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}
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long j4 = j - j2;
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if (j4 >= WINDOW_SIZE) {
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this.bitmap = 1L;
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} else {
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this.bitmap = (this.bitmap << ((int) j4)) | 1;
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}
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this.latestConfirmedSeq = j;
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}
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}
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