1 /* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */ 2 /* 3 Copyright (c) 2002-2015 ymnk, JCraft,Inc. All rights reserved. 4 5 Redistribution and use in source and binary forms, with or without 6 modification, are permitted provided that the following conditions are met: 7 8 1. Redistributions of source code must retain the above copyright notice, 9 this list of conditions and the following disclaimer. 10 11 2. Redistributions in binary form must reproduce the above copyright 12 notice, this list of conditions and the following disclaimer in 13 the documentation and/or other materials provided with the distribution. 14 15 3. The names of the authors may not be used to endorse or promote products 16 derived from this software without specific prior written permission. 17 18 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, 19 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 20 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT, 21 INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, 22 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 24 OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 25 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 26 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 27 EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 package com.jcraft.jsch; 31 32 import java.io.*; 33 34 class IdentityFile implements Identity{ 35 private JSch jsch; 36 private KeyPair kpair; 37 private String identity; 38 newInstance(String prvfile, String pubfile, JSch jsch)39 static IdentityFile newInstance(String prvfile, String pubfile, JSch jsch) throws JSchException{ 40 KeyPair kpair = KeyPair.load(jsch, prvfile, pubfile); 41 return new IdentityFile(jsch, prvfile, kpair); 42 } 43 newInstance(String name, byte[] prvkey, byte[] pubkey, JSch jsch)44 static IdentityFile newInstance(String name, byte[] prvkey, byte[] pubkey, JSch jsch) throws JSchException{ 45 46 KeyPair kpair = KeyPair.load(jsch, prvkey, pubkey); 47 return new IdentityFile(jsch, name, kpair); 48 } 49 IdentityFile(JSch jsch, String name, KeyPair kpair)50 private IdentityFile(JSch jsch, String name, KeyPair kpair) throws JSchException{ 51 this.jsch = jsch; 52 this.identity = name; 53 this.kpair = kpair; 54 } 55 56 /** 57 * Decrypts this identity with the specified pass-phrase. 58 * @param passphrase the pass-phrase for this identity. 59 * @return <tt>true</tt> if the decryption is succeeded 60 * or this identity is not cyphered. 61 */ setPassphrase(byte[] passphrase)62 public boolean setPassphrase(byte[] passphrase) throws JSchException{ 63 return kpair.decrypt(passphrase); 64 } 65 66 /** 67 * Returns the public-key blob. 68 * @return the public-key blob 69 */ getPublicKeyBlob()70 public byte[] getPublicKeyBlob(){ 71 return kpair.getPublicKeyBlob(); 72 } 73 74 /** 75 * Signs on data with this identity, and returns the result. 76 * @param data data to be signed 77 * @return the signature 78 */ getSignature(byte[] data)79 public byte[] getSignature(byte[] data){ 80 return kpair.getSignature(data); 81 } 82 83 /** 84 * @deprecated This method should not be invoked. 85 * @see #setPassphrase(byte[] passphrase) 86 */ decrypt()87 public boolean decrypt(){ 88 throw new RuntimeException("not implemented"); 89 } 90 91 /** 92 * Returns the name of the key algorithm. 93 * @return "ssh-rsa" or "ssh-dss" 94 */ getAlgName()95 public String getAlgName(){ 96 return new String(kpair.getKeyTypeName()); 97 } 98 99 /** 100 * Returns the name of this identity. 101 * It will be useful to identify this object in the {@link IdentityRepository}. 102 */ getName()103 public String getName(){ 104 return identity; 105 } 106 107 /** 108 * Returns <tt>true</tt> if this identity is cyphered. 109 * @return <tt>true</tt> if this identity is cyphered. 110 */ isEncrypted()111 public boolean isEncrypted(){ 112 return kpair.isEncrypted(); 113 } 114 115 /** 116 * Disposes internally allocated data, like byte array for the private key. 117 */ clear()118 public void clear(){ 119 kpair.dispose(); 120 kpair = null; 121 } 122 123 /** 124 * Returns an instance of {@link KeyPair} used in this {@link Identity}. 125 * @return an instance of {@link KeyPair} used in this {@link Identity}. 126 */ getKeyPair()127 public KeyPair getKeyPair(){ 128 return kpair; 129 } 130 } 131