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com.marklogic.developer.corb.HostKeyDecrypter Maven / Gradle / Ivy
/*
* Copyright (c) 2004-2023 MarkLogic Corporation
*
* 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.
*
* The use of the Apache License does not indicate that this project is
* affiliated with the Apache Software Foundation.
*/
package com.marklogic.developer.corb;
import com.marklogic.developer.corb.util.StringUtils;
import static com.marklogic.developer.corb.util.StringUtils.byteArrayToHexString;
import static com.marklogic.developer.corb.util.StringUtils.hexStringToByteArray;
import static java.util.logging.Level.INFO;
import static java.util.logging.Level.WARNING;
import java.io.BufferedReader;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.nio.file.ProviderNotFoundException;
import java.security.InvalidKeyException;
import java.security.Key;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.text.MessageFormat;
import java.util.Locale;
import java.util.Optional;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.SecretKeySpec;
/**
* Class that uses a private key associate with a particular host Key is
* calculated based on SHA-256 hash of internal server ids. Also has and
* endpoint to encrypt plaintext passwords
*
* @author Richard Kennedy
* @since 2.2.0
*/
public class HostKeyDecrypter extends AbstractDecrypter {
private static byte[] privateKey;
private static final byte[] DEFAULT_BYTES = {45, 32, 67, 34, 67, 23, 21, 45, 7, 89, 3, 27, 39, 62, 15};
private static final byte[] HARD_CODED_BYTES = {120, 26, 58, 29, 43, 77, 95, 103, 29, 86, 97, 105, 52, 16, 42, 63, 37, 100, 45, 109, 108, 79, 75, 71, 11, 46, 36, 62, 124, 12, 7, 127};
private static final String AES = "AES";
private static final String USAGE_FORMAT = "java -cp marklogic-corb-" + AbstractManager.VERSION + ".jar " + HostKeyDecrypter.class.getName() + "{0} ";
private static final String EXCEPTION_MGS_SERIAL_NOT_FOUND = "Unable to find serial number on {0}";
private static final String METHOD_TEST = "test";
private static final String METHOD_ENCRYPT = "encrypt";
// currently only usage is encrypt
protected static final String USAGE = "Encrypt:\n "
+ MessageFormat.format(USAGE_FORMAT, METHOD_ENCRYPT + " clearText")
+ "\nTest:\n "
+ MessageFormat.format(USAGE_FORMAT, METHOD_TEST);
protected static final Logger LOG = Logger.getLogger(HostKeyDecrypter.class.getName());
protected enum OSType {
WINDOWS {
/**
* get bios serial number on windows machine
*
* @return byte[] bios serial number
*/
@Override
public byte[] getSN() {
StringBuilder sb = new StringBuilder();
BufferedReader br = null;
boolean isSN = false;
try {
br = read("wmic bios get serialnumber");
try (Scanner sc = new Scanner(br)) {
while (sc.hasNext()) {
String next = sc.next();
if ("SerialNumber".equals(next) || isSN) {
isSN = true;
next = sc.next();
sb.append(next);
}
}
String sn = sb.toString();
if (!sn.isEmpty()) {
return sn.getBytes();
} else {
throw new IllegalStateException(MessageFormat.format(EXCEPTION_MGS_SERIAL_NOT_FOUND, this.toString()));
}
}
} finally {
closeOrThrowRuntime(br);
}
}
},
MAC {
/**
* get bios serial number on mac machine
*
* @return byte[] bios serial number
*/
@Override
public byte[] getSN() {
return OSType.getSN("/usr/sbin/system_profiler SPHardwareDataType", "Serial Number", this);
}
},
LINUX {
/**
* get bios serial number on linux machine uses lshal command that
* is part of the hal package
*
* @return byte[] bios serial number
*/
@Override
public byte[] getSN() {
try {
return OSType.getSN("lshal", "system.hardware.serial", this);
} catch (ProviderNotFoundException ex) {
//Linux distros have deprecated lshal and may not be available on modern versions
LOG.warning("lshal is not available on this machine. Using default Serial Number value.");
return OTHER.getSN();
}
}
},
OTHER {
@Override
public byte[] getSN() {
return DEFAULT_BYTES;
}
};
public abstract byte[] getSN();
private static byte[] getSN(String command, String marker, OSType os) {
try (BufferedReader br = read(command)) {
Optional hasMatch = br.lines().filter(s -> s.contains(marker)).findFirst();
if (hasMatch.isPresent()) {
String sn = hasMatch.get().split(marker)[1].trim();
return sn.getBytes();
}
} catch (RuntimeException | IOException ex) {
throw new ProviderNotFoundException("Required to have " + command + " command installed on machine");
}
throw new IllegalStateException(MessageFormat.format(EXCEPTION_MGS_SERIAL_NOT_FOUND, os));
}
private static void closeOrThrowRuntime(Closeable obj) {
if (obj != null) {
try {
obj.close();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
private static BufferedReader read(String command) {
Runtime runtime = Runtime.getRuntime();
Process process;
try {
process = runtime.exec(command.split(" "));
} catch (IOException e) {
throw new RuntimeException(e);
}
OutputStream os = process.getOutputStream();
closeOrThrowRuntime(os);
InputStream is = process.getInputStream();
return new BufferedReader(new InputStreamReader(is));
}
}
@Override
protected synchronized void init_decrypter() throws IOException, ClassNotFoundException {
try {
privateKey = getPrivateKey();
LOG.log(INFO, "Initialized HostKeyDecrypter");
} catch (NoSuchAlgorithmException e) {
throw new RuntimeException("Error constructing private key", e);
}
}
@Override
protected String doDecrypt(String property, String value) {
String decryptedText = null;
try {
decryptedText = decrypt(value);
} catch (Exception e) {
LOG.log(WARNING,"Unabled to decrypt property:" + property, e);
}
return decryptedText == null ? value : decryptedText;
}
/**
* Performs an xor on two byte arrays by doing an xor on each byte and
* putting result into another byte array arrays of different length will
* create an array of the longest where extra bytes are xor'd against 0 byte
*
* @author Richard Kennedy
* @param byteOne
* @param byteTwo
* @return
*/
public static byte[] xor(byte[] byteOne, byte[] byteTwo) {
int max;
if (byteOne.length > byteTwo.length) {
max = byteOne.length;
} else {
max = byteTwo.length;
}
byte[] result = new byte[max];
for (int i = 0; i < max; i++) {
byte one;
byte two;
if (i < byteOne.length) {
one = byteOne[i];
} else {
one = (byte) 0;
}
if (i < byteTwo.length) {
two = byteTwo[i];
} else {
two = (byte) 0;
}
result[i] = (byte) (one ^ two);
}
return result;
}
/**
* Performs a SHA-256 hash
*
* @author Richard Kennedy
* @param input
* @return
* @throws java.security.NoSuchAlgorithmException
*/
public static byte[] getSHA256Hash(byte[] input) throws NoSuchAlgorithmException {
MessageDigest md = MessageDigest.getInstance("SHA-256");
md.update(input);
return md.digest();
}
/**
* Creating a private key by doing an xor on hostname and mac address Then
* doing a SHA-256 has to generate a 256 key for AES
*
* @author Richard Kennedy
* @throws UnknownHostException
* @throws SocketException
* @throws NoSuchAlgorithmException
*/
private static byte[] getPrivateKey() throws UnknownHostException, SocketException, NoSuchAlgorithmException {
InetAddress ip = InetAddress.getLocalHost();
NetworkInterface network = NetworkInterface.getByInetAddress(ip);
byte[] mac = network.getHardwareAddress();
byte[] hostname = ip.getHostName().getBytes();
byte[] biosSN = getSerialNumber();
// doing an xor on mac address and hostname
byte[] xorResult = xor(HARD_CODED_BYTES, xor(biosSN, xor(mac, hostname)));
return getSHA256Hash(xorResult);
}
private static byte[] getSerialNumber() {
String os = System.getProperty("os.name");
return getOperatingSystemType(os).getSN();
}
protected static OSType getOperatingSystemType(String osName) {
OSType type = OSType.OTHER;
if (osName != null) {
String os = osName.toLowerCase(Locale.ENGLISH);
if (os.contains("mac") || os.contains("darwin")) {
type = OSType.MAC;
} else if (os.contains("win")) {
type = OSType.WINDOWS;
} else if (os.contains("nix") || os.contains("nux") || os.contains("aix")) {
type = OSType.LINUX;
}
}
return type;
}
/**
* Encrypts plaintext password using private key internal to host and AES
* 256 algorithm
*
* @author Richard Kennedy
* @param plaintext
* @return
* @throws NoSuchPaddingException
* @throws NoSuchAlgorithmException
* @throws InvalidKeyException
* @throws BadPaddingException
* @throws IllegalBlockSizeException
* @throws SocketException
* @throws UnknownHostException
*/
public static String encrypt(String plaintext)
throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException,
IllegalBlockSizeException, BadPaddingException, UnknownHostException, SocketException {
// secret key based off of internal private key
byte[] encryptionPrivateKey = getPrivateKey();
Key key = new SecretKeySpec(encryptionPrivateKey, AES);
Cipher cipher = Cipher.getInstance(AES);
// encrypting with private key and random for initialization vector
cipher.init(Cipher.ENCRYPT_MODE, key, new SecureRandom());
byte[] encryptedVal = cipher.doFinal(plaintext.getBytes());
return byteArrayToHexString(encryptedVal);
}
/**
* decrypts encrypted password using private key internal to host and AES
* 256 algorithm and returns plaintext password
*
* @param encryptedText
* @author Richard Kennedy
* @throws NoSuchPaddingException
* @throws NoSuchAlgorithmException
* @throws InvalidKeyException
*/
protected static String decrypt(String encryptedText) throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException {
byte[] encryptedTextBytes = hexStringToByteArray(encryptedText);
SecretKeySpec secretSpec = new SecretKeySpec(privateKey, AES);
Cipher cipher = Cipher.getInstance(AES);
cipher.init(Cipher.DECRYPT_MODE, secretSpec, new SecureRandom());
byte[] decryptedTextBytes = null;
try {
decryptedTextBytes = cipher.doFinal(encryptedTextBytes);
} catch (Exception e) {
LOG.log(Level.SEVERE, "decryption failed", e);
e.printStackTrace(); //NOPMD
}
return new String(decryptedTextBytes);
}
/**
* command line utility for doing password encryption
*
* @author Richard Kennedy
* @param args
* @throws java.lang.Exception
*/
public static void main(String... args) throws Exception {
String[] arguments = args == null ? new String[]{} : args;
String method = arguments.length > 0 ? StringUtils.trim(arguments[0]) : "";
if (METHOD_ENCRYPT.equals(method) && arguments.length == 2) {
System.out.println(encrypt(arguments[1].trim())); // NOPMD
} else if (METHOD_TEST.equals(method)) {
HostKeyDecrypter decrypter = new HostKeyDecrypter();
decrypter.init(System.getProperties());
String original = "234Helloworld!!!";
System.out.println("Password is :" + original); // NOPMD
String password = encrypt(original);
System.out.println("Encrypted Password is :" + password); // NOPMD
System.out.println("Decrypted password:" + decrypter.doDecrypt("Property", password)); // NOPMD
} else {
System.out.println(USAGE); // NOPMD
}
}
}
