Secure API Keys with a Public-Key Cryptography on Android
- Development
- Apr 18, 2025

Secure API Keys with a Public-Key Cryptography on Android, available at $19.99, has an average rating of 4.7, with 21 lectures, based on 12 reviews, and has 111 subscribers.
You will learn about Public-Key Cryptography Generate Private/Public Key Pair Encrypt/Decrypt the Data Establish a Secure Communication Secure Exchange of API Keys between Android app and a Server Android Keystore System Learn more about Security Concepts in Android Encrypted Shared Preferences Learn how to Secure your Android app This course is ideal for individuals who are Android developers or Security Engineers or People who want to secure their Apps before publishing them on Play Store or Anyone who wants to improve the overall Security of their Apps It is particularly useful for Android developers or Security Engineers or People who want to secure their Apps before publishing them on Play Store or Anyone who wants to improve the overall Security of their Apps.
Enroll now: Secure API Keys with a Public-Key Cryptography on Android
Summary
Title: Secure API Keys with a Public-Key Cryptography on Android
Price: $19.99
Average Rating: 4.7
Number of Lectures: 21
Number of Published Lectures: 21
Number of Curriculum Items: 21
Number of Published Curriculum Objects: 21
Original Price: $89.99
Quality Status: approved
Status: Live
What You Will Learn
Who Should Attend
Target Audiences
In this short-length course I will teach you how to securely store API keys in your Android App, without exposing them to the public. With the help of a Public Key Cryptography, Android Keystore System, Encrypted Shared Preferencesand our own Backend server, you will achieve exactly that.
Public key cryptography, also known as asymmetric cryptography, is a cryptographic approach that uses key pair: public key and private key. Each key pair consists of a public key and a private key that are mathematically related but cannot be derived one from another.
This approach will help us to securely exchange the data between a client and a server. API Keys will be initially stored securely on our backend Server. The server and the client will exchange the public key, to encrypt the data, before sending it back to the client.
That way we can make sure that no one can read the actual data which is exchanged. Only our Android application will hold the private key to decrypt the data, and securely store the API keys on a device.
Android Keystore system is a part of the Android operating system that provides a secure storage facility for cryptographic keys, certificates, and related information. It is designed to protect sensitive data, such as private keys used for encryption and authentication, from unauthorized access.
I will provide you with some more detailed information about the Keystore System itself and how does it work. We will utilize that system to securely store the Public Key Pair that is going to be generated for us.
So what are you waiting for, let’s get started!
Course Curriculum
Chapter 1: Introduction
Lecture 1: Introduction
Chapter 2: The Basics of Cryptography
Lecture 1: The History of Cryptography
Lecture 2: The Principles of Cryptography
Lecture 3: Symmetric Key Cryptography
Lecture 4: Asymmetric Key Cryptography
Lecture 5: Hash functions
Chapter 3: Client Application – Android
Lecture 1: Source Code – Android App
Lecture 2: Setup the Project
Lecture 3: Androids Keystore System
Lecture 4: Create KeyPairHandler
Lecture 5: Implement KeyProviderService
Lecture 6: Implement EncryptedPreferences
Lecture 7: Create the MainScreen UI
Lecture 8: Fetch Api Keys and Store them Securely
Chapter 4: Server Application – Kobweb/Ktor
Lecture 1: Source Code – Kobweb Server
Lecture 2: About Kobweb Framework
Lecture 3: Create DataEncryption object
Lecture 4: Create Key Provider Endpoint
Lecture 5: Lets Test it out!
Chapter 5: Server Deployment
Lecture 1: Lets Deploy our Server!
Chapter 6: Security Best Practices
Lecture 1: More Security Advices
Instructors

Stefan Jovanovic
Kotlin Multiplatform Developer
Rating Distribution
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