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/*
* Copyright (C) 2015 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.security.net.config;
import android.annotation.Nullable;
import java.util.Arrays;
/** @hide */
public final class Pin {
public final String digestAlgorithm;
public final byte[] digest;
private final int mHashCode;
public Pin(String digestAlgorithm, byte[] digest) {
this.digestAlgorithm = digestAlgorithm;
this.digest = digest;
mHashCode = Arrays.hashCode(digest) ^ digestAlgorithm.hashCode();
}
/**
* @hide
*/
public static boolean isSupportedDigestAlgorithm(String algorithm) {
// Currently only SHA-256 is supported. SHA-512 if/once Chromium networking stack
// supports it.
return "SHA-256".equalsIgnoreCase(algorithm);
}
/**
* @hide
*/
public static int getDigestLength(String algorithm) {
if ("SHA-256".equalsIgnoreCase(algorithm)) {
return 32;
}
throw new IllegalArgumentException("Unsupported digest algorithm: " + algorithm);
}
@Override
public int hashCode() {
return mHashCode;
}
@Override
public boolean equals(@Nullable Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof Pin)) {
return false;
}
Pin other = (Pin) obj;
if (other.hashCode() != mHashCode) {
return false;
}
if (!Arrays.equals(digest, other.digest)) {
return false;
}
if (!digestAlgorithm.equals(other.digestAlgorithm)) {
return false;
}
return true;
}
}
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