1f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one or more 3f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * contributor license agreements. See the NOTICE file distributed with 4f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this work for additional information regarding copyright ownership. 5f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The ASF licenses this file to You under the Apache License, Version 2.0 6f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (the "License"); you may not use this file except in compliance with 7f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the License. You may obtain a copy of the License at 8f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 9f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 10f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 11f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 12f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 13f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See the License for the specific language governing permissions and 15f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * limitations under the License. 16f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 17f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 18f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpackage org.apache.harmony.security.x509; 19f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 20f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.io.IOException; 21f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport org.apache.harmony.security.asn1.ASN1Type; 22f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport org.apache.harmony.security.asn1.ASN1BitString; 23f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 24f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/** 25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Key Usage Extension (OID = 2.5.29.15). 26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The ASN.1 definition for Key Usage Extension is: 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 29f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * <pre> 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * id-ce-keyUsage OBJECT IDENTIFIER ::= { id-ce 15 } 31f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * KeyUsage ::= BIT STRING { 33f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * digitalSignature (0), 34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * nonRepudiation (1), 35f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * keyEncipherment (2), 36f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * dataEncipherment (3), 37f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * keyAgreement (4), 38f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * keyCertSign (5), 39f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * cRLSign (6), 40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * encipherOnly (7), 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * decipherOnly (8) 42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * } 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * </pre> 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (as specified in RFC 3280 http://www.ietf.org/rfc/rfc3280.txt) 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpublic class KeyUsage extends ExtensionValue { 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 49f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The names of the usages. 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private static final String[] USAGES = { 52f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "digitalSignature", //$NON-NLS-1$ 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "nonRepudiation", //$NON-NLS-1$ 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "keyEncipherment", //$NON-NLS-1$ 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "dataEncipherment", //$NON-NLS-1$ 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "keyAgreement", //$NON-NLS-1$ 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "keyCertSign", //$NON-NLS-1$ 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "cRLSign", //$NON-NLS-1$ 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "encipherOnly", //$NON-NLS-1$ 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project "decipherOnly", //$NON-NLS-1$ 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project }; 62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // the value of extension 64f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private final boolean[] keyUsage; 65f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Creates the extension object corresponding to the given key usage. 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public KeyUsage(boolean[] keyUsage) { 70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project this.keyUsage = keyUsage; 71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Creates the extension object on the base of its encoded form. 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public KeyUsage(byte[] encoding) throws IOException { 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super(encoding); 78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project this.keyUsage = (boolean[]) ASN1.decode(encoding); 79f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 81f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public boolean[] getKeyUsage() { 82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return keyUsage; 83f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns the encoded of the object. 87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @return a byte array containing ASN.1 encoded form. 88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public byte[] getEncoded() { 90f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (encoding == null) { 91f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project encoding = ASN1.encode(keyUsage); 92f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 93f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return encoding; 94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 97f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Places the string representation of extension value 98f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * into the StringBuffer object. 99f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public void dumpValue(StringBuffer buffer, String prefix) { 101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project buffer.append(prefix).append("KeyUsage [\n"); //$NON-NLS-1$ 102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (int i=0; i<keyUsage.length; i++) { 103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (keyUsage[i]) { 104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project buffer.append(prefix).append(" ") //$NON-NLS-1$ 105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project .append(USAGES[i]).append('\n'); 106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project buffer.append(prefix).append("]\n"); //$NON-NLS-1$ 109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * X.509 Extension value encoder/decoder. 113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private static final ASN1Type ASN1 = new ASN1BitString.ASN1NamedBitList(9); 115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 117