/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.security.net.config;
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import java.util.Arrays;
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/** @hide */
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public final class Pin {
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public final String digestAlgorithm;
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public final byte[] digest;
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private final int mHashCode;
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public Pin(String digestAlgorithm, byte[] digest) {
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this.digestAlgorithm = digestAlgorithm;
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this.digest = digest;
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mHashCode = Arrays.hashCode(digest) ^ digestAlgorithm.hashCode();
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}
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/**
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* @hide
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*/
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public static boolean isSupportedDigestAlgorithm(String algorithm) {
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// Currently only SHA-256 is supported. SHA-512 if/once Chromium networking stack
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// supports it.
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return "SHA-256".equalsIgnoreCase(algorithm);
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}
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/**
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* @hide
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*/
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public static int getDigestLength(String algorithm) {
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if ("SHA-256".equalsIgnoreCase(algorithm)) {
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return 32;
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}
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throw new IllegalArgumentException("Unsupported digest algorithm: " + algorithm);
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}
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@Override
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public int hashCode() {
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return mHashCode;
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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}
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if (!(obj instanceof Pin)) {
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return false;
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}
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Pin other = (Pin) obj;
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if (other.hashCode() != mHashCode) {
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return false;
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}
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if (!Arrays.equals(digest, other.digest)) {
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return false;
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}
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if (!digestAlgorithm.equals(other.digestAlgorithm)) {
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return false;
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}
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return true;
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}
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}
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