Term: Spring 2019
Title is a mouthful but that’s what it was officially labeled as! In addition to being a programming assignment this was a major exercise in secure design, so the source also includes a design document detailing the possible attack vectors and appropriate defenses. In particular the system was designed to allow trusted users to share files with each other using a client and an insecure data server. The goal was to allow for client’s to share arbitrarily large files, update + revoke access privileges, and modify files in such a way that it would be computationally infeasible for an attacker to recover information, modify a file silently, or impersonate another user even with full control over the storage server.
Implementation relies on traditional RSA, Argon2 for key derivation + password hashing, and generous applications of HMAC. Sadly still vulnerable to Rubber-hose Cryptanalysis.
Blog Post (Home)
Tags: Go, Bugfix
This is just a quick fix for a problem I ran into while trying to use Primitive on Windows. While trying to create a gif, you might run into a message like this:
writing test.gif 2018/06/08 14:07:20 exit status 4