Roy E Huaman

Roy E Huaman


Basic Authentication with Spring Security

1. Overview

This tutorial shows how to set up, configure and customize Basic Authentication with Spring. We’re going to built on top of the simple Spring MVC example, and secure the UI of the MVC application with the Basic Auth mechanism provided by Spring Security.

2. The Spring Security Configuration

We can configure Spring Security using Java config:

public class CustomWebSecurityConfigurerAdapter extends WebSecurityConfigurerAdapter {
    private MyBasicAuthenticationEntryPoint authenticationEntryPoint;
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
    protected void configure(HttpSecurity http) throws Exception {
        http.addFilterAfter(new CustomFilter(),
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();

Here we’re using the httpBasic() element to define Basic Authentication, inside the configure() method of a class that extends WebSecurityConfigurerAdapter.

The same could be achieved using XML too:

<http pattern="/securityNone" security="none"/>
<http use-expressions="true">
    <intercept-url pattern="/**" access="isAuthenticated()" />
    <http-basic />
            <user name="user1" password="{noop}user1Pass" authorities="ROLE_USER" />

What is relevant here is the _<http-basic>_ element inside the main _<http>_ element of the configuration – this is enough to enable Basic Authentication for the entire application. The Authentication Manager is not the focus of this tutorial, so we are using an in-memory manager with the user and password defined in plaintext.

3. Consuming the Secured Application

The _curl_ command is our go-to tool for consuming the secured application.

First, let’s try to request the _/homepage.html_ without providing any security credentials:

	curl -i http://localhost:8080/spring-security-rest-basic-auth/api/foos/1

We get back the expected 401 Unauthorized and the Authentication Challenge:

HTTP/1.1 401 Unauthorized
Server: Apache-Coyote/1.1
Set-Cookie: JSESSIONID=E5A8D3C16B65A0A007CFAACAEEE6916B; Path=/spring-security-mvc-basic-auth/; HttpOnly
WWW-Authenticate: Basic realm="Spring Security Application"
Content-Type: text/html;charset=utf-8
Content-Length: 1061
Date: Wed, 29 May 2013 15:14:08 GMT

The browser would interpret this challenge and prompt us for credentials with a simple dialog, but since we’re using curl, this isn’t the case.

Now, let’s request the same resource – the homepage – but provide the credentials to access it as well:

curl -i --user user1:user1Pass 

Now, the response from the server is 200 OK along with a Cookie:

HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Set-Cookie: JSESSIONID=301225C7AE7C74B0892887389996785D; Path=/spring-security-mvc-basic-auth/; HttpOnly
Content-Type: text/html;charset=ISO-8859-1
Content-Language: en-US
Content-Length: 90
Date: Wed, 29 May 2013 15:19:38 GMT

From the browser, the application can be consumed normally – the only difference is that a login page is no longer a hard requirement since all browsers support Basic Authentication and use a dialog to prompt the user for credentials.

4. Further Configuration – The Entry Point

By default, the BasicAuthenticationEntryPoint provisioned by Spring Security returns a full page for a 401 Unauthorized response back to the client. This HTML representation of the error renders well in a browser, but it not well suited for other scenarios, such as a REST API where a json representation may be preferred.

The namespace is flexible enough for this new requirement as well – to address this – the entry point can be overridden:

<http-basic entry-point-ref="myBasicAuthenticationEntryPoint" />

The new entry point is defined as a standard bean:

public class MyBasicAuthenticationEntryPoint extends BasicAuthenticationEntryPoint {
    public void commence(
      HttpServletRequest request, HttpServletResponse response, AuthenticationException authEx) 
      throws IOException, ServletException {
        response.addHeader("WWW-Authenticate", "Basic realm="" + getRealmName() + """);
        PrintWriter writer = response.getWriter();
        writer.println("HTTP Status 401 - " + authEx.getMessage());
    public void afterPropertiesSet() throws Exception {

By writing directly to the HTTP Response we now have full control over the format of the response body.

5. The Maven Dependencies

The Maven dependencies for Spring Security have been discussed before in the Spring Security with Maven – we will need both spring-security-web and spring-security-config available at runtime.

6. Conclusion

In this example we secured an MVC application with Spring Security and Basic Authentication. We discussed the XML configuration and we consumed the application with simple curl commands. Finally took control of the exact error message format – moving from the standard HTML error page to a custom text or JSON format.

The full implementation of this tutorial can be found in the GitHub project – this is a Maven based project, so it should be easy to import and run as it is.

When the project runs locally, the sample HTML can be accessed at:


You can find the source code @

#spring-boot #java #web-development #security

What is GEEK

Buddha Community

Basic Authentication with Spring Security

How To Set Up Two-Factor Authentication in cPanel

What is 2FA
Two-Factor Authentication (or 2FA as it often referred to) is an extra layer of security that is used to provide users an additional level of protection when securing access to an account.
Employing a 2FA mechanism is a vast improvement in security over the Singe-Factor Authentication method of simply employing a username and password. Using this method, accounts that have 2FA enabled, require the user to enter a one-time passcode that is generated by an external application. The 2FA passcode (usually a six-digit number) is required to be input into the passcode field before access is granted. The 2FA input is usually required directly after the username and password are entered by the client.

#tutorials #2fa #access #account security #authentication #authentication method #authentication token #cli #command line #cpanel #feature manager #google authenticator #one time password #otp #otp authentication #passcode #password #passwords #qr code #security #security code #security policy #security practices #single factor authentication #time-based one-time password #totp #two factor authentication #whm

Sigrid  Farrell

Sigrid Farrell


Spring Security Authentication Process : Authentication Flow Behind the Scenes

In every application, Authentication is the first layer of protection. Thus, Authentication is a major part of Application Security and in this post we will dive deep into the architecture used by **Spring Security **for Authentication.

What is Authentication?_ Authentication is proving who you are. For example, your Identity Card is used to “authenticate” you in your School/College/Office campus._

Spring Security provides excellent support for Authentication by default. Kind of in a plug-in-and-play fashion. A simple Authentication workflow is really easy to setup. However, if you wanna go for a complete custom implementation then you need to understand the authentication flow and comprehend what happens behind the scenes when an authentication request is received by the server.

#spring-security #spring #authentication #rest-api #spring-boot #spring security authentication process : authentication flow behind the scenes

Were  Joyce

Were Joyce


Angular 12 + Spring Boot: JWT Authentication example | Spring Security

In this tutorial, I will show you how to build a full stack Angular 12 + Spring Boot JWT Authentication example. The back-end server uses Spring Boot with Spring Security for JWT Authentication & Role based Authorization, Spring Data JPA for interacting with database. The front-end will be built using Angular 12 with HttpInterceptor & Form validation.

Related Posts:

– Angular 12 + Spring Boot: CRUD example

– Angular 12 + Spring Boot: File upload example

– Spring Boot, MongoDB: JWT Authentication with Spring Security

Contents [hide]

#angular #full stack #spring #angular #angular 12 #authentication #authorization #jwt #login #registration #security #spring boot #spring security #token based authentication

Wilford  Pagac

Wilford Pagac


Best Custom Web & Mobile App Development Company

Everything around us has become smart, like smart infrastructures, smart cities, autonomous vehicles, to name a few. The innovation of smart devices makes it possible to achieve these heights in science and technology. But, data is vulnerable, there is a risk of attack by cybercriminals. To get started, let’s know about IoT devices.

What are IoT devices?

The Internet Of Things(IoT) is a system that interrelates computer devices like sensors, software, and actuators, digital machines, etc. They are linked together with particular objects that work through the internet and transfer data over devices without humans interference.

Famous examples are Amazon Alexa, Apple SIRI, Interconnected baby monitors, video doorbells, and smart thermostats.

How could your IoT devices be vulnerable?

When technologies grow and evolve, risks are also on the high stakes. Ransomware attacks are on the continuous increase; securing data has become the top priority.

When you think your smart home won’t fudge a thing against cybercriminals, you should also know that they are vulnerable. When cybercriminals access our smart voice speakers like Amazon Alexa or Apple Siri, it becomes easy for them to steal your data.

Cybersecurity report 2020 says popular hacking forums expose 770 million email addresses and 21 million unique passwords, 620 million accounts have been compromised from 16 hacked websites.

The attacks are likely to increase every year. To help you secure your data of IoT devices, here are some best tips you can implement.

Tips to secure your IoT devices

1. Change Default Router Name

Your router has the default name of make and model. When we stick with the manufacturer name, attackers can quickly identify our make and model. So give the router name different from your addresses, without giving away personal information.

2. Know your connected network and connected devices

If your devices are connected to the internet, these connections are vulnerable to cyber attacks when your devices don’t have the proper security. Almost every web interface is equipped with multiple devices, so it’s hard to track the device. But, it’s crucial to stay aware of them.

3. Change default usernames and passwords

When we use the default usernames and passwords, it is attackable. Because the cybercriminals possibly know the default passwords come with IoT devices. So use strong passwords to access our IoT devices.

4. Manage strong, Unique passwords for your IoT devices and accounts

Use strong or unique passwords that are easily assumed, such as ‘123456’ or ‘password1234’ to protect your accounts. Give strong and complex passwords formed by combinations of alphabets, numeric, and not easily bypassed symbols.

Also, change passwords for multiple accounts and change them regularly to avoid attacks. We can also set several attempts to wrong passwords to set locking the account to safeguard from the hackers.

5. Do not use Public WI-FI Networks

Are you try to keep an eye on your IoT devices through your mobile devices in different locations. I recommend you not to use the public WI-FI network to access them. Because they are easily accessible through for everyone, you are still in a hurry to access, use VPN that gives them protection against cyber-attacks, giving them privacy and security features, for example, using Express VPN.

6. Establish firewalls to discover the vulnerabilities

There are software and firewalls like intrusion detection system/intrusion prevention system in the market. This will be useful to screen and analyze the wire traffic of a network. You can identify the security weakness by the firewall scanners within the network structure. Use these firewalls to get rid of unwanted security issues and vulnerabilities.

7. Reconfigure your device settings

Every smart device comes with the insecure default settings, and sometimes we are not able to change these default settings configurations. These conditions need to be assessed and need to reconfigure the default settings.

8. Authenticate the IoT applications

Nowadays, every smart app offers authentication to secure the accounts. There are many types of authentication methods like single-factor authentication, two-step authentication, and multi-factor authentication. Use any one of these to send a one time password (OTP) to verify the user who logs in the smart device to keep our accounts from falling into the wrong hands.

9. Update the device software up to date

Every smart device manufacturer releases updates to fix bugs in their software. These security patches help us to improve our protection of the device. Also, update the software on the smartphone, which we are used to monitoring the IoT devices to avoid vulnerabilities.

10. Track the smartphones and keep them safe

When we connect the smart home to the smartphone and control them via smartphone, you need to keep them safe. If you miss the phone almost, every personal information is at risk to the cybercriminals. But sometimes it happens by accident, makes sure that you can clear all the data remotely.

However, securing smart devices is essential in the world of data. There are still cybercriminals bypassing the securities. So make sure to do the safety measures to avoid our accounts falling out into the wrong hands. I hope these steps will help you all to secure your IoT devices.

If you have any, feel free to share them in the comments! I’d love to know them.

Are you looking for more? Subscribe to weekly newsletters that can help your stay updated IoT application developments.

#iot #enterprise iot security #how iot can be used to enhance security #how to improve iot security #how to protect iot devices from hackers #how to secure iot devices #iot security #iot security devices #iot security offerings #iot security technologies iot security plus #iot vulnerable devices #risk based iot security program

Sigrid  Farrell

Sigrid Farrell


Spring Security Overview

In this article, we will take a bird’s eye view of Spring Security to understand what it is used for and what it has to offer us. Anything on the web is a potential victim of an attack. Unfortunately, securing a web application and implementing features like authorization and authentication are no walk in the park in a world where even the richest, most innovative technology companies get hacked. So when our boss gives us a task to secure the application, should we sit and wait, scared, not knowing what to do? Of course not.

Whether or not you are going to use Auth0 to secure your Spring app, you will need to know the basics of Spring Security to secure your application rapidly, and this makes it a must-know framework for any Spring developer. The thing with Spring Security is: It is difficult. Not because it is poorly designed or could be easier to use, but because of the complexity of its domain: Application security. Complex problems require technically sophisticated solutions, and security is one of them.

If you have ever taken a glance at a Spring Security-related documentation or tutorial, you might be scared of how complicated it looks. I mean, take a look at this picture from Wikipedia:

Acegi Security Basic Auth Flow

It is very natural to feel overwhelmed, especially if you are also new to Spring. Spring Security is a huge framework, but once you get the basics down, you can easily get the task of securing your app done by integrating it with an IDaaS service like Auth0 without the hassle of implementing everything yourself.

#spring security overview #spring #spring security #security