Java mask password in log I would like to log body of POST requests, which are send to my Servlet. xml file in spring boot. readPassword. Jun 27, 2024 · Why are you logging debug in the first place? My guess is you are using lombok with generated dto's and a default toString. Join You can prevent sensitive data from being logged in the verbose log messages by filtering log messages when using the log4j utility for logging. This kind of situation occurs when you are dealing with mainly debit or credit cards. Apr 14, 2017 · You can leverage the Log4j Framework by Apache to make changes to the message logger during application execution. Here's a commonly used approach using Console class and System. Apache ActiveMQ Artemis can be configured to use 'masked' passwords in its configuration files. If you have sensitive data with CustomerData, why are you logging it? Sep 8, 2023 · The simplest way I have found to achieve this requirement is to write a Rewrite Policy for log4j’s Rewrite appender. Even though it is a working solution, I don't think that it is a good solution since looking for the data in big strings every time is gonna cost. A full example might help me actually. Jan 15, 2015 · When the normal log-in in simple html form submitting, Chrome Developer Tools "Network" panel showing form data like this But at the major sites like Facebook, Google Learn how to securely mask passwords in Java command-line applications with asterisks. Contains a work-around for running within Eclipse; see Eclipse bug #122429. console() method returns null. Discover best practices and code examples. annotation. In the case where you are dealing with sensitive data in your application, it is difficult to mask at the code level because so many of the libraries log data that you do not have control over the message input. Write a dedicated toString for this object to exclude the password. This is what I'm Trying to do: Username: User1 Passwor An open-source Java library for masking log output with ease. mask phone number and login name except last 5 in log. Jun 9, 2023 · Discover how to securely mask sensitive data in logs within your Spring Boot application. Some great hash functions that meet all these criteria are PBKDF2, BCrypt, and SCrypt. zaxxer. Aug 20, 2025 · Also, though, password hashing functions should be slow. HikariConfig Learn how to prevent sensitive test data from appearing in the logs of Playwright tests in BrowserStack Automate. The readPassword() method in Java is used to input password from the console by masking the texts. We would like to be able to configure the logback logger/appen Learn how to mask passwords in Logback configuration files effectively. Here I am going to show you how to mask a field or an attribute in Java programming language. MaskingConverter"/> which defines a new function mask which can be used in a pattern in order to mask any log events matching any of the patterns defined in the custom converter. When log event happens I want to mask sensitive data in my DTO using annotation, for example: @Sensitive(fields = {password, email}) public class MyDTO { May 6, 2016 · Or any code piece we have to write in for log fields to mask those Credit card info so that those will be appreaed mask in log file. But logging password isn't a good idea. Oct 18, 2021 · I'm using below logstash encoder in logback config of my spring boot project. How can I do this when using Springdoc OpenAPI? Answer When developing applications, logging sensitive information such as passwords can lead to security vulnerabilities. Jun 4, 2024 · Updates: Define the regex patterns of sensitive data Define a filter class SensitiveDataFilter to mask sensitive data that match the regex patterns Add and setup filter configuration in LOG_CONFIG The masking process is clear. To enable mask in Java DSL at CamelContext level: Jan 14, 2020 · After using CXF to call a SOAP webservice, CXF client logs the SOAP request message with password visible! I want to hide sensitive data like passwords from the CXF client logging. (see here) Aug 12, 2023 · In above if I am logging payment information, my logback still running the email and address patterns against the payment log message; if I understand things correctly. Learn how to safeguard your credentials effortlessly. I have a list of sensitive strings that i would like to make sure is masked "*****" in the logs when sent to any sinks. Jan 8, 2022 · Logback tutorial to create custom PatternLayout to mask the sensitive data and NPI information from logs using regex patterns in logback. 1. There is a way to use KeyStore for this? For example read the value from a keystore. Jan 23, 2024 · Using the input type = "password" The input type="password" in HTML is used for creating password input fields. It returns the password in the character array. xml. js and Typescript Along with the growth of the IT/software industry, the concern for user’s privacy, data security is also increasing. I've tried using console. How to mask passwords? If the regular expression is the best idea, can you propose some examples? Nov 11, 2024 · mask password fully in log. 0. If you're running this through an IDE, you will get null on the Console object. Enablling / disabling logging by changing the logger config The logger name is "<service namespace>. 2 If you are looking for encryption and decryption mechanism in Java similar to what qtp provides, that is not possible unfortunately. Example: CreditcardNo:411111111111 should apprear in log file as *********1111 password Password123 should apprear in log as *********** I am using log4j to write the information to the log. Creating a new java class by extending logback’s Pattern Layout class. I want to hide my database credentials, username and password, in a good way then configure them in the application. Using String Manipulation String manipulation is one of the ways to hide an email by editing the characters and replacing a few with asterisks. ogged or log some services to another file. Normally, it's hard to find an IDE which provides an instance of Console class, that's why you get NullPointerException, simply because when you launch your application with the IDE's "Run" command, the System. I tried to use the same mask password instead of plain text in my ActiveMQ connection URL like in code below, but it didn't work. Sun java has suggested a way to mask a password as follows. lang. May 8, 2023 · Masking sensitive data in log4j logs for a Spring Boot application can be achieved by implementing a custom log appender and using regular expressions to identify and mask the sensitive information. io. May 29, 2013 · Re: How to mask user input at output terminal in java? Your code should work fine, however, you cannot get an instance of Console from within an IDE like netbeans because the Console is only valid for a command prompt window/shell window. With AWT/Swing, this is not a problem as methods are provided to mask passwords easily. In the Java programming language, the Console. This solution will work with any java based application with little customization. To mask a password a user will use an 'codec'. So please can anyone explain how to do this. It conceals the entered characters for security, displaying dots or asterisks instead. Sep 8, 2011 · 6 What is the best approach to hide confidental data, e. I used System. 4. You'll find Dec 14, 2018 · To mask (hide) it (completely) is easier and guaranteed more performant, it depends on the used "logging framework" (java. Mar 22, 2013 · my password program can hide keyboard input . setEchoChar((char)0); Setting a value of 0 indicates that you wish to see the text as it is typed, similar to the behavior of a standard JTextField. @Plugin(name = "CustomeMasking", category = " Apr 27, 2021 · It is well known that java. Dec 3, 2020 · I have three path variables for an API. Apr 29, 2020 · Performance optimized approach to mask sensitive data in XML in Java Asked 5 years, 6 months ago Modified 1 year, 4 months ago Viewed 2k times We've covered the basics of string masking in Java, from simple examples to advanced regex techniques. When these logs are analyzed, the information is exposed to those who check them. This approach also applies to any other log output (e. xml to mask specific data. I'm using this command to mask the password: Oct 18, 2024 · Understanding Java Logs is important. Oct 9, 2021 · Modified 3 years, 7 months ago Viewed 628 times 2 I want to mask the password while printing debug logs in hikariconfig Sample logs for where I want to hide the password com. Any feedback Oct 28, 2023 · LogMasking though Java annotations By using @LogMask annotation we can achieve log masking in java applications. Discover common pitfalls and solutions for effective implementation. In this blog we will know how we can implement Masking Sensitive Data. Here’s a simple Java code snippet demonstrating this approach: Jan 9, 2024 · In this guide, you will learn several best practices for keeping sensitive data out of your logs Oct 27, 2021 · In broker. Nov 30, 2024 · Configurable log masking is necessary because applications often have diverse logging requirements depending on the type of data, stakeholders, and environments. Dec 11, 2015 · I was looking for the JavaScript function to mask the input password along with showing the password in other textbox. getPassword (); to get the password as char [] . Conclusion In this tutorial, we covered how to use the PatternLayout feature to mask sensitive data in application logs with Logback and how to add regex patterns in logback. Jan 19, 2024 · In Spring Boot, you can use various mechanisms to mask or obfuscate sensitive information in log messages. If you wish to see the value you are inserting use jPasswordField1. hikari. When you create a data protection policy, then by default, sensitive data that matches the data identifiers you've selected is masked at all egress points Apr 23, 2023 · I am currently using the latest version of Spring Boot (version 3. <ServiceName>. Aug 8, 2017 · Actually for the current exception, we know what we want to mask. A masked password is an obscure string representation of a real password. It ensures that the password visibility can be switched with each click, providing interactive user experience. I have removed the real username and password in this example: 2015-10-07 11:19:41 Apr 2, 2022 · I have written @Mask annotation to mask sensitive information in logs. Here's what I g Hi Friends, #GainJavaKnowledge In this video you will learn How to mask sensitive details in spring boot application logs. readPassword (). This solution will work with any java based application with little In this tutorial, we will explore how to effectively mask sensitive data in log outputs when using Logback, a powerful logging framework for Java applications. Jan 17, 2017 · <conversionRule conversionWord="mask" converterClass="at. Console is NOT actually available always, but it depends by the implementation of your runtime environment. But I get their input password using servlet, it would show all characters. rovo. Masking sensitive information like password You can enable security masking for logging by setting logMask flag to true. But in logger class, there are seven different log () method depending upon the parameters passed to the method. Feb 10, 2014 · I tried to find a way to hide a string, but the code that I found just work with my application. toString ()'s result is will be concatenated onto the end of the previous string before logging it. Oct 7, 2015 · I want to hide the username and password from my log4j logs when i log an Http POST message that contains them. passwordcodec respectively. I need advice on how to approach this. This guide discusses effective strategies and provides examples for obscuring passwords in log files, safeguarding user data against unauthorized access. usemaskedpassword and activemq. Then we Nov 23, 2023 · In this comprehensive tutorial, we will delve into the realm of best practices for creating a robust logging system specifically tailored for Java applications. My code Dec 25, 2022 · In the Rest-Assured library for Java, we can use the filter () method of the LogConfig class to set up a custom log filter that will mask certain log messages. Feb 2, 2024 · Learn the advantages of and how to implement structured logging in Java. This is done by intercepting the log event and masking it even before it has a chance to be written. You need to change your pax logging config to make these visible. What is the common practice to avoid storing the password in clea Jan 2, 2024 · Discover the simple method to protect your password using Selenium in just a few steps. It is easy to integrate in both Log4j2 and Logback, configurable and can mask IPs, emails, passwords, IBANs and Card Numbers. Consider Console. 57K subscribers Subscribe Masking password input from the console in Java involves using techniques that prevent the password characters from being displayed as they are typed. Just bit of help, been looking around online at blocking the password being shown on the console window. Almost all May 19, 2010 · I need to hash passwords for storage in a database. Is there a simple method of either the inputted text not appearing at all or else an asterisk to cover the input of the password field only? Oct 21, 2019 · Spring Boot — Masking Sensitive Data in logs There is a requirement to mask the sensitive information printed in the logs. - PasswordMask. A hacker might merely have read the file of hash values and construct a program to send the hash value in. I have been looking through the documentation and cannot find an easy or 'correct' way to mask private/specific data (Perso Jan 5, 2023 · Data Masking is a common requirement in any new system. Mask logs with ease in Java! Sep 21, 2021 · I use log4j2 in my Spring Boot project. readPassword(), but it wouldn't work. Aug 14, 2016 · I'm a high school student learning Java and I want to know how to change input text automatically into an asterisk in Scanner. Don't blow this up to a full blown AOP solution. Ideal for developers looking to secure sensitive information in logs and optimize logging practices in Spring Boot applications. g. Although it will not mask the password with *, it does the job as it hides the text inputted. You can use regular expressions to find and mask userIds. Mar 7, 2018 · I tried by intercepting the log event, look for the particular information and mask them (Using a class which implements LogEventFactory). xml I'm using mask passwords like ENC(32c6f67da12342b0a7ad1702033aa81e6b2a760123f4360) instead of plain text, and it works fine. Use jPasswordField1. Jan 26, 2021 · Example of how to hide passwords and other sensitive data in Jenkins console output while running the declarative pipeline (MaskPasswordsBuildWrapper). Per Twitter’s announcement, passwords were written to logs before they … there is a way to hide/encrypt password in xml spring config file? I read that is possible with a "custom" subclass of DataSource, but the solutions keep key in same config file as plain textso is a bit useless. For ins Learn how to mask password inputs in Java console applications using Console. console () but it is not better and sometimes it returns null. This helps prevent sensitive information, such as CVV2 codes, from being logged in the verbose log messages. The codec takes in the real password and outputs the masked version. This is crucial for security and… Jul 26, 2015 · Masking PANs with Logback is the last resort to ensure the data is masked with false-positive hits. Jun 21, 2024 · About Masking Password Input Password masking involves hiding the characters entered by the user when typing a password on the console. In this learn how to mask senstive data from log messages with Spring Boot and Logback. out. But we have to do string comparison before each log with list of values. Remember, the key takeaway is that masking not only enhances security but also improves user experience. awsxray. As far as I know, a good way of handling this problem is setting up environment variables and Learn how to mask password input in Java console applications using Eclipse with step-by-step guidance and code examples. Nov 11, 2024 · mask password completely in log. java import java. Learn how to prevent sensitive test data from appearing in the logs of Selenium tests in BrowserStack Automate. Step 2 Configure all regular expressions to mask the data. It is preferable to mask the data before it is being written to log in the application code. Oct 15, 2021 · Use the JPasswordField function jPasswordField. Configure Log Masking with Log4j There can be business-sensitive information that is added to logs in the product console and/or Carbon log files. This is for a simple log-in system I have made for a project. Aug 24, 2022 · Introduction In this article, we will study how to mask password with an asterisk Java console. log (Level level, String msg): This Jan 5, 2018 · When you type log. <type>". This 5-minute example will show how you can mask sensitive data easily in Java with mapstruct. So you have a POJO or model class for your card (debit or credit) but for security reason you do not […] May 10, 2019 · I am trying to mask sensitive data while serializing using jackson. Feb 23, 2016 · How would you go about hiding sensitive information from going into log files? Yes, you can consciously choose not to log sensitive bits of information in the first place, but there can be general May 2, 2024 · Learn how to mask it with Logback for ultimate security in Spring boot application! Jul 12, 2025 · The log () method of Logger is used to Log a message. By default, only the value of Secure Authentication Code is masked. ElementType; import java. Apr 9, 2020 · Learn how to mask sensitive information like username and password in requestBody logs effectively using various techniques and best practices. Nov 26, 2019 · I have to mask the passwords in log messages without using logback. 2. I have tried using @JsonSerialize and a custom annotation @Mask . LogMasker is a library that helps with masking confidential data inside logs. Jul 6, 2015 · I have JSON request and response, I want to print the JSONs in the log, but there are some secured fields which I want to avoid to print in the log, I am trying to mask fields keys: example: before Aug 7, 2025 · Since Spring Boot is using logback for logging, you can overwrite the default logback pattern by your own patternLayout, masking your password properties. So in your case, whatever CustomerData. utils. 5) in IntelliJ IDEA. May 12, 2024 · With this approach, we can only mask those data in log files for which we’ve defined regular expressions in maskPattern in logback. Immediate help is appreciated. Nov 15, 2011 · How to mask a password from console input? I'm using Java 6. How do you hide these characters in May 28, 2018 · Seven Best Practices for Keeping Sensitive Data Out of Logs A few weeks ago, Twitter asked users to reset their passwords. info("user password : {}", pwd); expected Output: 2019-11-26 18:27:15,951 [http-nio- Nov 14, 2021 · This post describes an approach for hiding password and other sensitive data in log files using a custom log4j2 pattern layout. Masking sensitive information, such as passwords, credit card numbers, and personal identifiers, is essential to protect user privacy and comply with data protection regulations. Aug 20, 2011 · 0 I want to mask a password. Jul 10, 2009 · I am trying to mask a password in Java. In Java you can use 'Base64' class or some other mechanism too, to encrypt and decrypt the password, but anyone having access to your code can easily figure out original value for password. 2. If using the legacy mask-password and password-codec values then when a connector or acceptor is initialised, Apache ActiveMQ Artemis will add these values to the parameters using the keys activemq. Learn how to implement advanced logging strategies, including PII redaction using Logback and Log4j2, and enhance log management with AOP, custom annotations, MDC, and JSON formatting. Learn how Java logs improve application development, performance, and security as well as best practices for implementing them. Additionally, we May 30, 2012 · I know that command line interfaces like Git and others are able to hide input from a user (useful for passwords). Note: I am using Linux (Ubuntu) and you can assume that my credentials are correct. properties. A fast algorithm would aid brute force attacks in which a hacker will attempt to guess a password by hashing and comparing billions (or trillions) of potential passwords per second. Here's my code: import java. We define the regex patterns for sensitive data, and replace them with asterisks. readPassword("Password: "); System. Is there a way to hide the characters in a string with either * or - and if there is can someone ple How to Mask Sensitive Data in Spring Boot with Log4j2 | Log Masking | Data Masking Using Spring Boot Code With Ease - By Varsha 8. 0) to log in my spring boot application. Masking Email Addresses 2. If you calculate the hash on the browser and then send to the server (without the password) then the server can't trust that the browser actually calculated the hash. Learn effective techniques to mask JSON and toString output, ensuring the confidentiality of your data and preventing unauthorized access. There are two parts for this implementation. 5) and I am trying write a message converter plugin which will mask some of the know patterns of the log message. Use “owasp-security-logging” library for masking sensitive data Another option is using owasp-security-logging library related to Sep 19, 2023 · In the controller, mask the password only when you record it in the logs, but pass the actual password to your service. Know how to hide or mask or replace sensitive log details printed in JSON or To-String format in the console appender or rollingFile appender using replace (aka %replace expression) This masking Jul 21, 2017 · I wanted to know if there's a generic way to mask specific class fields values when logged? i'm using Lombok logger. Syntax: <input type="password" placeholder="Enter your Password"> Example 1: In this example, we will use input type="password" in an HTML document. Sep 13, 2023 · You can achieve this by using a custom processor or filter in your Java application before sending the logs to Azure Application Insights. The security comes from the server (a trusted environment) having the Sep 27, 2022 · The readPassword (String, Object) method of Console class in Java is used to read a password or passphrase from the console by providing a formatted prompt. Step-by-step guide with code examples. setEchoChar ('*') to mask the password characters with *. public void run () { stop = true; while ( The preferred way is simply to use the ENC() syntax. I am afraid this Dear Viewers this video will let you learn how to show and hide password field in java using netbeans, if you are java lover, then IGTech is the best option for you, Ensure you subscription and May 29, 2018 · I have a Spring Boot web app and am using logback as my logging solution. Ultimate goal is we need to Protect the customer data (PDPA). Is there any other way to stop echo and mask a password? I am new to java. Feb 13, 2018 · I am using ASP. Mar 24, 2024 · Configuring Async Log4j2 and Masking Sensitive Data in Spring Boot In this post, we’ll explore how to configure asynchronous logging with Log4j2 in a Spring Boot application. Please remember regex are costly in terms of resource utilization. for example: @ToString(includeFieldNames = true) public class Account{ Str Oct 21, 2020 · In this quick tutorial, we'll show you how to intercept data before libraries log it into a file by creating a Rewrite Policy for your sensitive data. sample Log: LOGGER. passwords into logs. Jun 12, 2018 · Is there a way I can mask certain string variables of a class like password, etc which will prevent during logging? Like overriding toString() method in such way it does not print in logs. These policies let you audit and mask sensitive data that appears in log events ingested by the log groups in your account. Oct 1, 2020 · I'm building a login system in Java and I'm trying to mask the password input due to security measures but can't seem to find a way around it. This prevents others from seeing or intercepting the password as it is being typed. You may read about securing coding practices in my next post. Mask. But my qus is how can show password input as asterisk (*) can any one Jun 22, 2025 · JAVA Program to remove characters of Mask String from Original String || Scraper Question Given are two strings, input string and a mask string that remove all the characters of the mask string from the original string. masking is an important technique that is used vastly in programming for security purposes like logging in and signing up for entering any pin information. The user name and password for the database are stored in a properties file. readPassword () method enables developers to implement this functionality securely. To mitigate this risk, masking passwords in logs is essential. When Apache . It has configuration xml file and I try to write regular expression to mask passwords in this configuration file. its invisible when i type password. You can help safeguard sensitive data that's ingested by CloudWatch Logs by using log group data protection policies. Learn how to implement secure password hashing in Java with practical examples and best practices to protect user data. NET Core logging abstraction for my application. When Apache Jul 11, 2025 · Show and Hide Password - JavaScript The JavaScript functionality for the "Show and Hide Password" feature toggles the input field's type between "password" and "text" when the button is clicked, updating the button text accordingly. util, log4j or slf4j) and accomplished with an according "logger configuration". console(). Learn how to securely mask password inputs in Java 5 applications with this detailed guide. How can I do this in Java? I was hoping to take the plain text password, add a random salt, then store the salt and the hashed password in the I use logback (logback-gelf vs. Thanks all. Masking a password It uses a simple way to do that. Thanks in advance. Feb 21, 2022 · Build a custom message converter for Log4j that will mask the input to protect sensitive data like emails or passwords. Make sure you securely manage user passwords within your system, for example by using password hashing and secure storage. Quick code snapshot: char[] password = System. A user can then replace the real password in the configuration files with the new masked password. Apr 22, 2023 · Build a custom message converter for Logback that will mask the input to protect sensitive data like emails or passwords. In Java this method has 2 different argument types. How to hash or mask sensitive data in logs you send to New Relic with our log obfuscation UI or API. As in my case, we have a custom logger implementation and packaged in a Mar 4, 2014 · I am developing a Java command line application and I need to display an asterisk (*), or any similar sign, when the user inputs the password. We have the username and password value. I have tried using the replace() method but it accepts Hi all! This is my first open-source project and I hope I managed to create something useful. If the logger is currently enabled for the given message level which is passed as parameter then a corresponding LogRecord is created and forwarded to all the registered Output Handler objects. Step 1 Create spring boot application. Secure your application logging with these expert tips. Example: INPUT: ORIGINAL STRING: communication MASK STRING: mont OUTPUT: cuicai Logic We will first of all store the characters of the mask string in a character array. Since it is springboot project, is autowiring Masking class helps for performance? Maybe I did not understand how things are wired. I want to mask one input on Swagger UI with *****. Apr 22, 2025 · Learn how to securely handle and mask passwords in Selenium Webdriver to protect sensitive information in your automation tests. Mar 7, 2022 · LogMasker is a log masking library that makes it easy to mask confidential information directly in the logs. toString methods) according to defined RegEx pattern. It is working fine when I log data using custom JacksonAnnotationIntrospector with ObjectMapper. info ("abcdefgh {}", someStringHere) it will log the String "abcdefgh " + whatever the value of someStringHere is. Mask sensitive data in the values of dictionary In above examples, the sensitive data A lot of the details are in the MDC values which are by default normally not displayed in the log file. Jan 6, 2022 · How to mask a password when input from the console. The library is still in it's early stages, with hopefully more features on the way. May 24, 2016 · Spring Boot uses the properties file, and at least by default, the passwords are in plain text. To avoid this potential security pitfall, users can mask sensitive information. Note that this option also affects Log EIP. Here is the JavaScript code I found on the internet $(function() { //Ext Nov 15, 2014 · What you are suggesting has a serious security flaw. 1. println("Password is: "+ password); Note: You must run the program via command line. Oct 13, 2023 · We all will get into a situation where we should mask sensitive data or any Personally Identifiable Information (PII) before logging. import logging # Setting up a logger logger = logging Apr 21, 2019 · Hide/Mask Sensitive information in Node. Apr 29, 2016 · I am using log4j2(version - 2. It provides a way to read a password as a Feb 18, 2021 · In this article, I will be providing a demonstration on the ways that “I” think a password can be securely stored on your SQL Database from input that is retrieved from a Java Swing GUI. Works with log4j and logback. console (): Jul 20, 2025 · Common Challenges in Masking Sensitive Data Before diving into solutions, let’s identify some common challenges developers face when masking sensitive data in log4j java applications: Identifying sensitive information within log messages Balancing log verbosity with data privacy Maintaining performance while implementing masking techniques Ensuring consistency across different logging levels Jan 30, 2024 · Explore the nuances of custom logging in Spring Boot with our in-depth guide. Jun 10, 2016 · I have a java application that connects to a database. java Jan 7, 2011 · We currently generically log all XML documents coming in and going out of our system, and some of them contain passwords in the clear. One of the ongoing criticisms of the Java command line text-based input/output APIs is the lack of support for command line input password masking. What Log4j offers is a way to intercept the data before it logs it to May 27, 2013 · I wanted to mask the sensitive data like username/password using an slf4j framework. Custom log processor that scans log messages for sensitive data and replaces them with placeholders. Is it possible to somehow hide/decrypt these? I know how to let user input their password with input type="password" field in JSP. Is there a way to programmtically do this in Java? I'm taking password input from Aug 20, 2024 · In this tutorial, we’ll investigate how to mask email addresses and phone numbers in Java.