Shareable File URLs

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prerequisites
basics of Java Spring Boot and Spring Security
skills learned
add JWT-based user authentication • macaroons-based authorization
Sashank Dara
1 week · 6-8 hours per week · BEGINNER
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Help ShareSafe’s customers share with confidence. You’re a developer for a company that provides online file-sharing-as-a service. Its users can upload and share personal documents, photos, and videos onto ShareSafe’s website using APIs. Your task is to add security to ShareSafe’s file-transfer REST API service. You’ll implement a user-authentication layer using JSON Web Tokens (JWTs), provide authorization for shareable URLs by establishing the relationship between users and files, and leverage macaroons (cryptographic cookies) to provide a secure way for users to share files.

This project is designed for learning purposes and is not a complete, production-ready application or solution.

project author

Sashank Dara

Sashank Dara received his PhD in cybersecurity from IIIT-Bangalore in the area of applied cryptography and threat intelligence. He’s an expert cybersecurity technologist with more than 17 years of experience in the field, including as a consultant advisor for Manipal Global Education Services’ cybersecurity programs and as a security technology and strategy advisor for security startups including Appknox, Haltdos, and SecurityJourney.com. He remains a trusted information security consultant and advisor for top companies in EdTech, IT/ITes, academia, and real estate. He’s the co-inventor of 5 U.S. patents (and 3 IETF drafts) in the areas of cloud, SDN, and NFV security, and he’s published more than a dozen research papers at IEEE, LNCS conferences in the areas of cloud security, privacy, cryptography, and threat intelligence. A prolific speaker at security conferences and invited talks, Dara is currently the CTO and co-founder of Seconize, an award-winning cybersecurity startup pioneering a cyber risk and compliance management SaaS product suite.

prerequisites

This liveProject is for programmers who are familiar with basic REST APIs and Java and would like to learn ways to add security to a simple file-sharing REST API. To begin this liveProject you’ll need to be familiar with the following:

TOOLS
  • Basics of Java
  • Basics of Spring
  • Basics of JDBC
  • Basics of AWS S3
  • Testing APIs via Postman
  • Command line basics of any Linux-hosted system
TECHNIQUES
  • Basic debugging
  • Code reviews
  • Code refactoring
  • Unit testing
  • Security testing

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