Certificate-based authentication in Android and iOS

kapil sharma
2 min readSep 20, 2023

Welcome to my comprehensive blog series that delves deep into the realm of certificate-based authentication and modern security methods. Throughout this series, we’ll explore various facets of certificate authentication and introduce you to cutting-edge techniques like FIDO authentication and PassKeys.

Blog 1: Understanding Certificate-Based Authentication

In this introductory blog, we’ll lay the foundation by exploring the fundamentals of certificate-based authentication. You’ll learn how certificates are used to establish trust, the role of Public Key Infrastructure (PKI), and the basics of digital signatures.

Blog 2: Certificates in Different Formats

Dive into the world of certificate formats. We’ll discuss how certificates can be provided in different forms, whether they’re manually installed in the device’s keychain, generated from Virtual Smart Cards (Derived Credentials), or based on physical Smart Cards. Gain insights into the advantages and considerations of each format.

Blog 3: Debugging Certificate Issues on the Client Side

Discover essential debugging techniques to diagnose and resolve common certificate-related problems on the client side. We’ll equip you with the tools and strategies needed to ensure a smooth and secure authentication process.

Blog 4: Converting Certificates between Formats

Efficiently convert certificates from one format to another with step-by-step guides. Master the art of certificate conversion, making your workflow smoother and more versatile.

Blog 5: FIDO Authentication

FIDO (Fast Identity Online) authentication is the future of passwordless security. Learn how FIDO leverages public key cryptography to provide robust and user-friendly authentication. Explore integration options for FIDO authentication in your applications and websites.

Blog 6: Exploring PassKeys

Uncover the world of PassKeys, a secure method for storing and managing authentication credentials. Understand how PassKeys work, their advantages, and how to implement them effectively for enhanced security.

Blog 7: OkHttp and Certificate Authentication

OkHttp is a widely-used library for making HTTP requests in Android and Java applications. We’ll demonstrate how to integrate certificate-based authentication with OkHttp, ensuring secure communication with web services.

Blog 8: Putting It All Together

In the final blog of the series, we’ll bring together the knowledge gained throughout our journey. We’ll explore real-world scenarios, best practices, and recommendations for implementing certificate-based authentication, FIDO authentication, PassKeys, and OkHttp in your applications.

Stay tuned as we embark on this educational journey through the world of certificate-based authentication and modern security methods. Your digital security expertise begins here!

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