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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.util.apk;
import android.annotation.Nullable;
import java.security.cert.CertificateEncodingException;
import java.security.cert.X509Certificate;
import java.util.Arrays;
/**
* For legacy reasons we need to return exactly the original encoded certificate bytes, instead
* of letting the underlying implementation have a shot at re-encoding the data.
*/
class VerbatimX509Certificate extends WrappedX509Certificate {
private final byte[] mEncodedVerbatim;
private int mHash = -1;
VerbatimX509Certificate(X509Certificate wrapped, byte[] encodedVerbatim) {
super(wrapped);
this.mEncodedVerbatim = encodedVerbatim;
}
@Override
public byte[] getEncoded() throws CertificateEncodingException {
return mEncodedVerbatim;
}
@Override
public boolean equals(@Nullable Object o) {
if (this == o) return true;
if (!(o instanceof VerbatimX509Certificate)) return false;
try {
byte[] a = this.getEncoded();
byte[] b = ((VerbatimX509Certificate) o).getEncoded();
return Arrays.equals(a, b);
} catch (CertificateEncodingException e) {
return false;
}
}
@Override
public int hashCode() {
if (mHash == -1) {
try {
mHash = Arrays.hashCode(this.getEncoded());
} catch (CertificateEncodingException e) {
mHash = 0;
}
}
return mHash;
}
}
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