Passay - DictionaryRule

DictionaryRule helps allows to check if certain words are not specified as password.

Example - Validating Password as per Dictionary Rule

The below example shows validation of an invalid password as per Dictionary Rule.

PassayDemo.java

package com.tutorialspoint;

import org.passay.DictionaryRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.RuleResult;
import org.passay.dictionary.ArrayWordList;
import org.passay.dictionary.WordListDictionary;

public class PassayDemo {
   public static void main(String[] args) {
      WordListDictionary wordListDictionary = new WordListDictionary(
         new ArrayWordList(new String[] { "password", "username" }));
      DictionaryRule dictionaryRule = new DictionaryRule(wordListDictionary);
      PasswordValidator validator = new PasswordValidator(dictionaryRule);
      PasswordData password = new PasswordData("password");
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

Output

Compile and run the code to verify the result −

Invalid Password: [Password contains the dictionary word 'password'.]

Example - Validating a Valid Password as per Dictionary Rule.

The below example shows validation of a valid password as per Dictionary Rule.

PassayDemo.java

package com.tutorialspoint;

import org.passay.DictionaryRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.RuleResult;
import org.passay.dictionary.ArrayWordList;
import org.passay.dictionary.WordListDictionary;

public class PassayDemo {
   public static void main(String[] args) {
      WordListDictionary wordListDictionary = new WordListDictionary(
         new ArrayWordList(new String[] { "password", "username" }));
      DictionaryRule dictionaryRule = new DictionaryRule(wordListDictionary);
      PasswordValidator validator = new PasswordValidator(dictionaryRule);
      PasswordData password = new PasswordData("password1323");
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

Output

Compile and run the code to verify the result −

Password validated.