Book Image

Android Application Security Essentials

By : Pragati Rai
Book Image

Android Application Security Essentials

By: Pragati Rai

Overview of this book

In today's techno-savvy world, more and more parts of our lives are going digital, and all this information is accessible anytime and anywhere using mobile devices. It is of the utmost importance that you understand and implement security in your apps that will reduce the likelihood of hazards that will wreck your users' experience. "Android Application Security Essentials" takes a deep look into Android security from kernel to the application level, with practical hands-on examples, illustrations, and everyday use cases. This book will show you how to overcome the challenge of getting the security of your applications right. "Android Application Security Essentials" will show you how to secure your Android applications and data. It will equip you with tricks and tips that will come in handy as you develop your applications.We will start by learning the overall security architecture of the Android stack. Securing components with permissions, defining security in a manifest file, cryptographic algorithms and protocols on the Android stack, secure storage, security focused testing, and protecting enterprise data on your device is then also discussed in detail. You will also learn how to be security-aware when integrating newer technologies like NFC and mobile payments into your Android applications. At the end of this book, you will understand Android security at the system level all the way to the nitty-gritty details of application security for securing your Android applications.
Table of Contents (18 chapters)
Android Application Security Essentials
About the Author
About the Reviewer

Crypto APIs

Android boasts of a comprehensive crypto API suite that application developers can use to secure data, both at rest and in transit.

Android provides APIs for symmetric and asymmetric encryption of data, random number generation, hashing, message authentication codes, and different cipher modes. Algorithms supported include DH, DES, Triple DES, RC2, and RC5.

Secure communication protocols such as SSL and TLS, in conjunction with the encryption APIs, can be used to secure data in transit. Key management APIs including the management of X.509 certificates are provided as well.

A system key store has been in use since Android 1.6 for use by VPN. With Android 4.0, a new API called KeyChain provides applications with access to credentials stored there. This API also enables the installation of credentials from X.509 certificates and PKCS#12 key stores. Once the application is given access to a certificate, it can access the private key associated with the certificate.

Crypto APIs are discussed in detail in Chapter 6, Your Tools – Crypto APIs.