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Restful Java Web Services Security
Restful Java Web Services Security

Restful Java Web Services Security: Secure your RESTful applications against common vulnerabilities with this book and eBook.

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Restful Java Web Services Security

Chapter 2. The Importance of Securing Web Services

Look at you; you have made it to Chapter 2; congratulations! This chapter is quite important because it is related to a concept that is implicit in software, which is security. This is very important because software is used by companies and people like us. Sometimes, we share very important and confidential information through software, and that is why this topic becomes so important for everybody.

In this chapter, we will take you through the basic aspects related to the management of security in computer systems.

We will explore and implement each of the different security mechanisms and scenarios in which they can be used.

Also, you'll learn how to use a protocol analyzer. This will allow us to demonstrate how an attack can be performed and determine the impact of this attack when it achieves its target, in this case, our information. Also, you will be able to imagine more options to implement security in web services.

As...

The importance of security

The management of security is one of the main aspects to consider when designing applications.

No matter what, neither the functionality nor the information of organizations can be exposed to all users without any kind of restriction. Consider the case of a human resource management application that allows you to consult the wages of employees, for example: if the company manager needs to know the salary of one of their employees, it is not something of great importance. However, in the same context, imagine that one of the employees wants to know the salary of their colleagues; if access to this information is completely open, it can generate problems among employees with varied salaries.

An even more critical example can be the case where the bank XYZ increases a bank balance every time a customer or a third party makes a deposit into one of their accounts using an ATM. The IT manager envisions that this functionality could be common, and decides to implement...

Security management options

Java provides some options for security management. Right now, we will explain some of them and demonstrate how to implement them. All authentication methods are practically based on credential delivery from the client to the server. There are several methods to perform this, which are:

  • BASIC authentication
  • DIGEST authentication
  • CLIENT CERT authentication
  • Using API keys

Security management in applications built with Java, including the ones with RESTful web services, always rely on JAAS.

Java Authentication and Authorization Service (JAAS) is a framework that is part of Java Platform Enterprise Edition. Hence, it is the default standard to handle an application's security in Java; it allows you to implement authorization, and it allows authentication controls over applications with the purpose of protecting resources that belong to the application. If you want to know more about JAAS, you can check out the following link:

http://docs.oracle.com/javase/7/docs...

API keys

With the advent of cloud computing, it is not difficult to think of applications that integrate with many others available in the cloud. Right now, it's easy to see how applications interact with Flickr, Facebook, Twitter, Tumblr, and so on.

To enable these integrations, a new authentication mechanism has been developed using API keys. This authentication method is used primarily when we need to authenticate from another application but we do not want to access the private user data hosted in another application. On the contrary, if you want to access this information, you must use OAuth. If you are interested in this, don't worry, we will study this wonderful technology later in this book.

We want to understand how the API keys work, so let's take the case of Flickr. The important thing here is to understand how the API keys work because the same concept can be applied to companies like Google, Facebook, and so on. For those unfamiliar with Flickr, it is an application...

Summary

In this chapter, we went through all possible models of authentication. We will use all of them in the next chapter, and we will apply them to the web service functionality we just created.

Even if you had trouble with any of the examples, you can continue to the next chapter. As for your better understanding, we will go step-by-step and more in-depth into how we can leverage each available authentication model.

As you realize, it is important to choose the correct security management, otherwise information is exposed and can easily be intercepted and used by third parties.

Finally, in this chapter, we reviewed the differences between authentication and authorization. Both concepts are very important and definitely impossible to put aside in the context of security terms.

Now, we will ask you to join us to go ahead and secure our web service.

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Description

A sequential and easy-to-follow guide which allows you to understand the concepts related to securing web apps/services quickly and efficiently, since each topic is explained and described with the help of an example and in a step-by-step manner, helping you to easily implement the examples in your own projects. This book is intended for web application developers who use RESTful web services to power their websites. Prior knowledge of RESTful is not mandatory, but would be advisable.

What you will learn

  • Set up, implement, and personalize your development and test environment
  • Learn, understand, and assimilate concepts inherent to security management on RESTful applications and the importance of these concepts
  • Implement and test security on your applications that use RESTful web services with the most useful techniques and interpret the test results
  • Apply and configure secure protocols on your application
  • Implement, configure, and integrate other technologies such as OAuth or SSO with RESTful applications
  • Learn and assimilate security concepts at JEE application and container level
  • Understand digital signatures and message encryption through descriptive examples
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Publication date, Length, Edition, Language, ISBN-13
Publication date : Jul 25, 2014
Length: 144 pages
Edition : 1st
Language : English
ISBN-13 : 9781783980109
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Product Details

Publication date : Jul 25, 2014
Length: 144 pages
Edition : 1st
Language : English
ISBN-13 : 9781783980109
Vendor :
Eclipse Foundation
Languages :
Concepts :
Tools :

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Table of Contents

6 Chapters
1. Setting Up the Environment Chevron down icon Chevron up icon
2. The Importance of Securing Web Services Chevron down icon Chevron up icon
3. Security Management with RESTEasy Chevron down icon Chevron up icon
4. RESTEasy Skeleton Key Chevron down icon Chevron up icon
5. Digital Signatures and Encryption of Messages Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon

Customer reviews

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Meghna Kartha Nov 22, 2015
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
A well explained case study to get an introduction to security and restful webservices.
Amazon Verified review Amazon
Richard Mar 27, 2015
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
Good book to get Hands on security.
Amazon Verified review Amazon
Kindle Customer Feb 23, 2015
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
Over the last few weeks I have been heavily involved in migrating a SOAP based enterprise system to a REST architecture. As part of the migration, the security framework also needed to be overhauled. Being an enterprise system, there are many integration points with external parties and security is a prime concern.During this time, this book has been my "go to" book on security regarding RESTful services. As a reference on topics related to security and RESTful services this book is both comprehensive and pragmatic, a combination that saved me lots of time. This book is perfectly suited for someone that needs to get something up and running in a short period of time. It does not spend too much time on theory, instead it focusses on the practical steps you need to take to get something working. However, unlike a simple cookbook, it explains things in enough detail so that you understand why you are doing something rather than simply how to accomplish the task.The book uses an example based, practical approach to explain the concepts it covers. Even though I was implementing on the IBM (Apache Wink) stack and the book covers the RESTEasy implementation (JBoss) of JAX-RS, it was straightforward to take the examples presented and adapt it for my needs. Perhaps the code that comes with the book could be augmented to include examples demonstrating other implementations (I think Jersey and Restlet would be great for most developers).In the end, no other resource has covered the areas to provide comprehensive security in a RESTful architecture as completely and simply as this book and I would recommend this book to anyone working at securing RESTful endpoints.
Amazon Verified review Amazon
Luca Morettoni Feb 13, 2015
Full star icon Full star icon Full star icon Full star icon Empty star icon 4
The "security" need to be a must on every kind of application, but if we plan to expose our applications business logic with RESTful services we need to think two times about secure implementation on that layer.The book is a great introduction to the security of the RESTful system, drives the programmer to implement different layers of security, from the user authentication and authorization to the encryption and signature of the payload. It is also a good quick reference for every developer that need to implement OAuth and/or digital signature of the data.What I didn't liked on the book that is too much tight to RESTeasy implementation, I hope in the future editions to see also some references to the Jersey implementation!At the end is a good book and if you're working on RESTful Java project you need to read it!
Amazon Verified review Amazon
W Boudville Feb 06, 2015
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The book may be pertinent to programmers of cloud computing. The authors strive to make the discussion relevant in the context of you having applications that hook up to Facebook, Twitter, Tumblr and others. Often, sites like these expose an API for an overlay of independent firms (like yours?) to build analysis engines.One practical consequence is that unlike a book on RESTful web services from a few years ago, there is now an explanation of authentication using API keys. Perhaps earlier texts had underplayed this, not appreciating its then significance. As you can appreciate, web security is now a crucial part of practical deployed web services. The book devotes quite a bit of space to the topic.Some readers will appreciate that you don't need a background in the deep level maths of public and private keys. The book keeps the discussion at a level that deprecates the essential maths to lower level routines that can be safeful ignored. Your remit is to understand and use the management of these keys.The closest we get to the maths is in the last chapter. But even here, it is not the maths you need to understand, but the tasks above it, like verifying signatures and encrypting a message body.
Amazon Verified review Amazon
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