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/*
* ConnectBot: simple, powerful, open-source SSH client for Android
* Copyright 2007 Kenny Root, Jeffrey Sharkey
*
* 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 org.connectbot.bean;
import java.security.NoSuchAlgorithmException;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.interfaces.ECPublicKey;
import java.security.interfaces.RSAPublicKey;
import java.security.spec.InvalidKeySpecException;
import org.connectbot.util.PubkeyDatabase;
import org.connectbot.util.PubkeyUtils;
import android.content.ContentValues;
/**
* @author Kenny Root
*
*/
public class PubkeyBean extends AbstractBean {
public static final String BEAN_NAME = "pubkey";
private static final String KEY_TYPE_RSA = "RSA";
private static final String KEY_TYPE_DSA = "DSA";
private static final String KEY_TYPE_EC = "EC";
/* Database fields */
private long id;
private String nickname;
private String type;
private byte[] privateKey;
private byte[] publicKey;
private boolean encrypted = false;
private boolean startup = false;
private boolean confirmUse = false;
private int lifetime = 0;
/* Transient values */
private transient boolean unlocked = false;
private transient Object unlockedPrivate = null;
private transient String description;
@Override
public String getBeanName() {
return BEAN_NAME;
}
public void setId(long id) {
this.id = id;
}
public long getId() {
return id;
}
public void setNickname(String nickname) {
this.nickname = nickname;
}
public String getNickname() {
return nickname;
}
public void setType(String type) {
this.type = type;
}
public String getType() {
return type;
}
public void setPrivateKey(byte[] privateKey) {
if (privateKey == null)
this.privateKey = null;
else
this.privateKey = privateKey.clone();
}
public byte[] getPrivateKey() {
if (privateKey == null)
return null;
else
return privateKey.clone();
}
public void setPublicKey(byte[] encoded) {
if (encoded == null)
publicKey = null;
else
publicKey = encoded.clone();
}
public byte[] getPublicKey() {
if (publicKey == null)
return null;
else
return publicKey.clone();
}
public void setEncrypted(boolean encrypted) {
this.encrypted = encrypted;
}
public boolean isEncrypted() {
return encrypted;
}
public void setStartup(boolean startup) {
this.startup = startup;
}
public boolean isStartup() {
return startup;
}
public void setConfirmUse(boolean confirmUse) {
this.confirmUse = confirmUse;
}
public boolean isConfirmUse() {
return confirmUse;
}
public void setLifetime(int lifetime) {
this.lifetime = lifetime;
}
public int getLifetime() {
return lifetime;
}
public void setUnlocked(boolean unlocked) {
this.unlocked = unlocked;
}
public boolean isUnlocked() {
return unlocked;
}
public void setUnlockedPrivate(Object unlockedPrivate) {
this.unlockedPrivate = unlockedPrivate;
}
public Object getUnlockedPrivate() {
return unlockedPrivate;
}
public String getDescription() {
if (description == null) {
final StringBuilder sb = new StringBuilder();
try {
final PublicKey pubKey = PubkeyUtils.decodePublic(privateKey, type);
if (PubkeyDatabase.KEY_TYPE_RSA.equals(type)) {
int bits = ((RSAPublicKey) pubKey).getModulus().bitLength();
sb.append("RSA ");
sb.append(bits);
sb.append("-bit");
} else if (PubkeyDatabase.KEY_TYPE_DSA.equals(type)) {
sb.append("DSA 1024-bit");
} else if (PubkeyDatabase.KEY_TYPE_EC.equals(type)) {
int bits = ((ECPublicKey) pubKey).getParams().getCurve().getField()
.getFieldSize();
sb.append("EC ");
sb.append(bits);
sb.append("-bit");
} else {
sb.append("Unknown Key Type");
}
} catch (NoSuchAlgorithmException e) {
sb.append("Unknown Key Type");
} catch (InvalidKeySpecException e) {
sb.append("Unknown Key Type");
}
if (encrypted)
sb.append(" (encrypted)");
description = sb.toString();
}
return description;
}
/* (non-Javadoc)
* @see org.connectbot.bean.AbstractBean#getValues()
*/
@Override
public ContentValues getValues() {
ContentValues values = new ContentValues();
values.put(PubkeyDatabase.FIELD_PUBKEY_NICKNAME, nickname);
values.put(PubkeyDatabase.FIELD_PUBKEY_TYPE, type);
values.put(PubkeyDatabase.FIELD_PUBKEY_PRIVATE, privateKey);
values.put(PubkeyDatabase.FIELD_PUBKEY_PUBLIC, publicKey);
values.put(PubkeyDatabase.FIELD_PUBKEY_ENCRYPTED, encrypted ? 1 : 0);
values.put(PubkeyDatabase.FIELD_PUBKEY_STARTUP, startup ? 1 : 0);
values.put(PubkeyDatabase.FIELD_PUBKEY_CONFIRMUSE, confirmUse ? 1 : 0);
values.put(PubkeyDatabase.FIELD_PUBKEY_LIFETIME, lifetime);
return values;
}
public boolean changePassword(String oldPassword, String newPassword) throws Exception {
PrivateKey priv;
try {
priv = PubkeyUtils.decodePrivate(getPrivateKey(), getType(), oldPassword);
} catch (Exception e) {
return false;
}
setPrivateKey(PubkeyUtils.getEncodedPrivate(priv, newPassword));
setEncrypted(newPassword.length() > 0);
return true;
}
}
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