Signature.java revision 3a44f3f1b446315ef894e01d2ab9b5388c2bd8c4
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.content.pm; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2294c91dca55de9ffdbe072fcc5dd6dbf1efe5e4c1Jeff Sharkeyimport com.android.internal.util.ArrayUtils; 2394c91dca55de9ffdbe072fcc5dd6dbf1efe5e4c1Jeff Sharkey 2405ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Rootimport java.io.ByteArrayInputStream; 25de0ff63700c1836771d797e6c7340b18cb814484Kenny Rootimport java.lang.ref.SoftReference; 2605ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Rootimport java.security.PublicKey; 2705ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Rootimport java.security.cert.Certificate; 28a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Rootimport java.security.cert.CertificateEncodingException; 2905ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Rootimport java.security.cert.CertificateException; 3005ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Rootimport java.security.cert.CertificateFactory; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.Arrays; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 343a44f3f1b446315ef894e01d2ab9b5388c2bd8c4Jeff Sharkey * Opaque, immutable representation of a signing certificate associated with an 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * application package. 363a44f3f1b446315ef894e01d2ab9b5388c2bd8c4Jeff Sharkey * <p> 373a44f3f1b446315ef894e01d2ab9b5388c2bd8c4Jeff Sharkey * This class name is slightly misleading, since it's not actually a signature. 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class Signature implements Parcelable { 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final byte[] mSignature; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mHashCode; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mHaveHashCode; 43de0ff63700c1836771d797e6c7340b18cb814484Kenny Root private SoftReference<String> mStringRef; 44a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root private Certificate[] mCertificateChain; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Create Signature from an existing raw byte array. 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Signature(byte[] signature) { 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSignature = signature.clone(); 51a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root mCertificateChain = null; 52a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root } 53a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root 54a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root /** 55a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root * Create signature from a certificate chain. Used for backward 56a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root * compatibility. 57a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root * 58a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root * @throws CertificateEncodingException 59a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root * @hide 60a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root */ 61a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root public Signature(Certificate[] certificateChain) throws CertificateEncodingException { 62a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root mSignature = certificateChain[0].getEncoded(); 63a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root if (certificateChain.length > 1) { 64a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root mCertificateChain = Arrays.copyOfRange(certificateChain, 1, certificateChain.length); 65a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root } 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 681137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root private static final int parseHexDigit(int nibble) { 691137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root if ('0' <= nibble && nibble <= '9') { 701137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root return nibble - '0'; 711137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root } else if ('a' <= nibble && nibble <= 'f') { 721137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root return nibble - 'a' + 10; 731137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root } else if ('A' <= nibble && nibble <= 'F') { 741137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root return nibble - 'A' + 10; 751137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root } else { 761137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root throw new IllegalArgumentException("Invalid character " + nibble + " in hex string"); 771137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root } 781137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root } 791137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Create Signature from a text representation previously returned by 821137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root * {@link #toChars} or {@link #toCharsString()}. Signatures are expected to 831137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root * be a hex-encoded ASCII string. 841137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root * 851137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root * @param text hex-encoded string representing the signature 861137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root * @throws IllegalArgumentException when signature is odd-length 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Signature(String text) { 89d21d444426911d93c507a929a8223ebf63258954Kenny Root final byte[] input = text.getBytes(); 90d21d444426911d93c507a929a8223ebf63258954Kenny Root final int N = input.length; 911137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root 921137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root if (N % 2 != 0) { 931137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root throw new IllegalArgumentException("text size " + N + " is not even"); 941137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root } 951137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root 96d21d444426911d93c507a929a8223ebf63258954Kenny Root final byte[] sig = new byte[N / 2]; 97d21d444426911d93c507a929a8223ebf63258954Kenny Root int sigIndex = 0; 98d21d444426911d93c507a929a8223ebf63258954Kenny Root 99d21d444426911d93c507a929a8223ebf63258954Kenny Root for (int i = 0; i < N;) { 1001137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root final int hi = parseHexDigit(input[i++]); 1011137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root final int lo = parseHexDigit(input[i++]); 1021137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root sig[sigIndex++] = (byte) ((hi << 4) | lo); 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 104d21d444426911d93c507a929a8223ebf63258954Kenny Root 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSignature = sig; 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Encode the Signature as ASCII text. 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public char[] toChars() { 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return toChars(null, null); 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Encode the Signature as ASCII text in to an existing array. 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param existingArray Existing char array or null. 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param outLen Output parameter for the number of characters written in 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the array. 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Returns either <var>existingArray</var> if it was large enough 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to hold the ASCII representation, or a newly created char[] array if 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * needed. 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public char[] toChars(char[] existingArray, int[] outLen) { 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project byte[] sig = mSignature; 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int N = sig.length; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int N2 = N*2; 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] text = existingArray == null || N2 > existingArray.length 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ? new char[N2] : existingArray; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j=0; j<N; j++) { 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project byte v = sig[j]; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int d = (v>>4)&0xf; 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project text[j*2] = (char)(d >= 10 ? ('a' + d - 10) : ('0' + d)); 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project d = v&0xf; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project text[j*2+1] = (char)(d >= 10 ? ('a' + d - 10) : ('0' + d)); 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (outLen != null) outLen[0] = N; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return text; 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1431137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root * Return the result of {@link #toChars()} as a String. 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toCharsString() { 146de0ff63700c1836771d797e6c7340b18cb814484Kenny Root String str = mStringRef == null ? null : mStringRef.get(); 147de0ff63700c1836771d797e6c7340b18cb814484Kenny Root if (str != null) { 148de0ff63700c1836771d797e6c7340b18cb814484Kenny Root return str; 149de0ff63700c1836771d797e6c7340b18cb814484Kenny Root } 150de0ff63700c1836771d797e6c7340b18cb814484Kenny Root str = new String(toChars()); 151de0ff63700c1836771d797e6c7340b18cb814484Kenny Root mStringRef = new SoftReference<String>(str); 152de0ff63700c1836771d797e6c7340b18cb814484Kenny Root return str; 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the contents of this signature as a byte array. 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public byte[] toByteArray() { 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project byte[] bytes = new byte[mSignature.length]; 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(mSignature, 0, bytes, 0, mSignature.length); 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bytes; 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16405ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root /** 16505ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root * Returns the public key for this signature. 16605ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root * 16705ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root * @throws CertificateException when Signature isn't a valid X.509 16805ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root * certificate; shouldn't happen. 16905ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root * @hide 17005ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root */ 17105ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root public PublicKey getPublicKey() throws CertificateException { 17205ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root final CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 17305ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root final ByteArrayInputStream bais = new ByteArrayInputStream(mSignature); 17405ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root final Certificate cert = certFactory.generateCertificate(bais); 17505ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root return cert.getPublicKey(); 17605ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root } 17705ca4c90644921df9193d92b2abdc81ef77e4a62Kenny Root 178a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root /** 179a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root * Used for compatibility code that needs to check the certificate chain 180a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root * during upgrades. 181a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root * 182a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root * @throws CertificateEncodingException 183a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root * @hide 184a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root */ 185a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root public Signature[] getChainSignatures() throws CertificateEncodingException { 186a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root if (mCertificateChain == null) { 187a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root return new Signature[] { this }; 188a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root } 189a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root 190a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root Signature[] chain = new Signature[1 + mCertificateChain.length]; 191a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root chain[0] = this; 192a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root 193a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root int i = 1; 194a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root for (Certificate c : mCertificateChain) { 195a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root chain[i++] = new Signature(c.getEncoded()); 196a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root } 197a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root 198a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root return chain; 199a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root } 200a8e65fd82a323e6065ae9ae6cc8eaa130d3c1efdKenny Root 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean equals(Object obj) { 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (obj != null) { 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Signature other = (Signature)obj; 2061137341885d8dc451dddc2e01319fb0fab00bbc3Kenny Root return this == other || Arrays.equals(mSignature, other.mSignature); 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (ClassCastException e) { 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int hashCode() { 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mHaveHashCode) { 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mHashCode; 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHashCode = Arrays.hashCode(mSignature); 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mHaveHashCode = true; 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mHashCode; 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int describeContents() { 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel dest, int parcelableFlags) { 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dest.writeByteArray(mSignature); 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<Signature> CREATOR 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<Signature>() { 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Signature createFromParcel(Parcel source) { 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new Signature(source); 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Signature[] newArray(int size) { 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new Signature[size]; 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Signature(Parcel source) { 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSignature = source.createByteArray(); 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24594c91dca55de9ffdbe072fcc5dd6dbf1efe5e4c1Jeff Sharkey 24694c91dca55de9ffdbe072fcc5dd6dbf1efe5e4c1Jeff Sharkey /** 24794c91dca55de9ffdbe072fcc5dd6dbf1efe5e4c1Jeff Sharkey * Test if given {@link Signature} sets are exactly equal. 24894c91dca55de9ffdbe072fcc5dd6dbf1efe5e4c1Jeff Sharkey * 24994c91dca55de9ffdbe072fcc5dd6dbf1efe5e4c1Jeff Sharkey * @hide 25094c91dca55de9ffdbe072fcc5dd6dbf1efe5e4c1Jeff Sharkey */ 25194c91dca55de9ffdbe072fcc5dd6dbf1efe5e4c1Jeff Sharkey public static boolean areExactMatch(Signature[] a, Signature[] b) { 25294c91dca55de9ffdbe072fcc5dd6dbf1efe5e4c1Jeff Sharkey return ArrayUtils.containsAll(a, b) && ArrayUtils.containsAll(b, a); 25394c91dca55de9ffdbe072fcc5dd6dbf1efe5e4c1Jeff Sharkey } 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 255