We were also facing similar problem but we created our own encryption and decryption logic to tackle this. Here is the code
/* class is used to generate encrypted password */
public class ClientForPasswordGeneration {
public static void main(String[] args) {
//final String secretKey = "ssshhhhhhhhhhh!!!!";
final String secretKey = PasswordKey.getEncryptionKey();
GenerateLogic object = new GenerateLogic();
String password = PasswordField.readPassword("Enter password: ");
String encryptPassword = object.encrypt(password, secretKey);
System.out.println("Encrypted Password:");
System.out.println(encryptPassword);
}
}
Another Class
class EraserThread implements Runnable {
private boolean stop;
/**
* @param The
* prompt displayed to the user
*/
public EraserThread(String prompt) {
System.out.print(prompt);
}
/**
* Begin masking...display asterisks (*)
*/
public void run() {
stop = true;
while (stop) {
System.out.print("\010*");
try {
Thread.currentThread().sleep(1);
// System.out.println("current thread::" + Thread.currentThread());
} catch (InterruptedException ie) {
ie.printStackTrace();
}
}
}
/**
* Instruct the thread to stop masking
*/
public void stopMasking() {
this.stop = false;
}
}
Logic which generated hashed code
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
import java.util.Base64;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
public class GenerateLogic {
private static SecretKeySpec secretKey;
private static byte[] key;
public static void setKey(String myKey) {
MessageDigest sha = null;
try {
key = myKey.getBytes("UTF-8");
sha = MessageDigest.getInstance("SHA-1");
key = sha.digest(key);
key = Arrays.copyOf(key, 16);
secretKey = new SecretKeySpec(key, "AES");
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
public static String encrypt(String strToEncrypt, String secret) {
try {
setKey(secret);
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, secretKey);
return Base64.getEncoder().encodeToString(cipher.doFinal(strToEncrypt.getBytes("UTF-8")));
} catch (Exception e) {
System.out.println("Error while encrypting: " + e.toString());
}
return null;
}
public static String decrypt(String strToDecrypt) {
try {
//System.out.println("decryptedString methods");
//String secret = "ssshhhhhhhhhhh!!!!";
String secret = PasswordKey.getEncryptionKey();
setKey(secret);
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5PADDING");
cipher.init(Cipher.DECRYPT_MODE, secretKey);
//System.out.println("testing string values::" + new String(cipher.doFinal(Base64.getDecoder().decode(strToDecrypt))));
return new String(cipher.doFinal(Base64.getDecoder().decode(strToDecrypt)));
} catch (Exception e) {
System.out.println("Error while decrypting: " + e.toString());
}
return null;
}
public static void main(String[] args) {
final String secretKey = "ssshhhhhhhhhhh!!!!";
String originalString = "changeit";
String encryptedString = GenerateLogic.encrypt(originalString, secretKey);
String decryptedString = GenerateLogic.decrypt(encryptedString);
System.out.println(originalString);
System.out.println(encryptedString);
System.out.println(decryptedString);
}
}
This is where we extended the class org.apache.coyote.http11.Http11Nio2Protocol which is present in tomcat-coyote-8.0.29.jar which is present in lib folder of tomcat 8. So while compiling these classes tomcat-coyote-8.0.29.jar should be present.
public class Http11Nio2Protocol extends org.apache.coyote.http11.Http11Nio2Protocol {
@Override
public void setKeystorePass(String s) {
try {
super.setKeystorePass(new GenerateLogic().decrypt(s));
} catch (final Exception e) {
super.setKeystorePass("");
}
}
}
This is where user has to enter password in cmd which should be hashed
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class PasswordField {
/**
* @param prompt
* The prompt to display to the user
* @return The password as entered by the user
*/
public static String readPassword(String prompt) {
EraserThread et = new EraserThread(prompt);
Thread mask = new Thread(et);
mask.start();
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
String password = "";
try {
password = in.readLine();
} catch (IOException ioe) {
ioe.printStackTrace();
}
// stop masking
et.stopMasking();
// return the password entered by the user
return password;
}
}
This is where you keep your password key. You should change it.
public class PasswordKey {
private static String ENCRYPTION_KEY = "myKeysecretkey";
protected static String getEncryptionKey()
{
return ENCRYPTION_KEY;
}
}
compile above classes to generate class files with below command in cmd. Remember tomcat-coyote-8.0.29.jar should be present in same folder where all the java files are present.
javac -cp ".;tomcat-coyote-8.0.29.jar" *.java
Make a jar with the generated class file using this command in cmd
jar -cvf PasswordEncryptor.jar *.class
This will create a jar file PasswordEncryptor.jar
Paste the generated PasswordEncryptor.jar in lib folder of Tomcat8. i.e. apache-tomcat-8.5.9\lib
Now go to this location and type below command to generate the hashed password.
java -cp ".;PasswordEncryptor.jar" ClientForPasswordGeneration
Now go to apache-tomcat-8.5.9\conf and edit server.xml
Use the hashed password in keystorpasss of certificate
<Connector port="9443" protocol="Http11Nio2Protocol" SSLEnabled="true"
maxThreads="150" scheme="https" secure="true"
clientAuth="false" sslProtocol="TLS"
keystoreFile="C:\Certificates\SSLCert.cert" keystorePass="nOS74yuWW4s18TsL2UJ51A=="/>
Notice the protocol is the custom class name.
Hope this will help you.
Thanks
https://stackoverflow.com/questions/16194052
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