{"id":21940632,"url":"https://github.com/vobst/ctf-nsa_backdoor","last_synced_at":"2025-10-07T14:36:33.279Z","repository":{"id":113463782,"uuid":"535566758","full_name":"vobst/ctf-nsa_backdoor","owner":"vobst","description":"Solution of picoCTF 2022 NSA backdoor challenge.","archived":false,"fork":false,"pushed_at":"2022-09-12T08:47:09.000Z","size":54,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-06-02T07:12:29.297Z","etag":null,"topics":["backdoor","cryptography","ctf-writeups","nsa","picoctf"],"latest_commit_sha":null,"homepage":"","language":"HTML","has_issues":false,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/vobst.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2022-09-12T08:03:06.000Z","updated_at":"2022-09-12T08:50:39.000Z","dependencies_parsed_at":null,"dependency_job_id":"a0d9e458-bf4f-4bf0-9df9-efb255864a8c","html_url":"https://github.com/vobst/ctf-nsa_backdoor","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/vobst/ctf-nsa_backdoor","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vobst%2Fctf-nsa_backdoor","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vobst%2Fctf-nsa_backdoor/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vobst%2Fctf-nsa_backdoor/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vobst%2Fctf-nsa_backdoor/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/vobst","download_url":"https://codeload.github.com/vobst/ctf-nsa_backdoor/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vobst%2Fctf-nsa_backdoor/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":278791425,"owners_count":26046549,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-10-07T02:00:06.786Z","response_time":59,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["backdoor","cryptography","ctf-writeups","nsa","picoctf"],"created_at":"2024-11-29T02:34:15.858Z","updated_at":"2025-10-07T14:36:33.246Z","avatar_url":"https://github.com/vobst.png","language":"HTML","funding_links":[],"categories":[],"sub_categories":[],"readme":"# NSA backdoors ...\n... are hopefully only present in CTF challenges. This repository contains a blog post about my experience solving the [NSA backdoor](https://play.picoctf.org/practice/challenge/283?category=2\u0026page=5) challenge of this year's [picoCTF](https://picoctf.org/competitions/2022-spring.html). The post is wrapped into a [Pluto notebook](https://github.com/fonsp/Pluto.jl). Pluto notebooks are a free and open source notebook programming environment written in, and for, the [Julia programming language](https://julialang.org/).\n\nIf you want to read the *non-interactive* version of this post, simply open `nsa_backdoor.html` in your browser.\n\nTo view the interactive version, [download the Julia binary](https://julialang.org/downloads/) and add it to your `PATH`. Then, run the `julia` command, press `]` to enter the package manager, enter `add Pluto`, and finally `^C` to get back to the Julia repl. Finally, open `nsa_backdoor.jl` by running \n```\njulia\u003e import Pluto\njulia\u003e Pluto.run()\n```\nand navigating to wherever you `git clone`d this repo to.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvobst%2Fctf-nsa_backdoor","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fvobst%2Fctf-nsa_backdoor","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvobst%2Fctf-nsa_backdoor/lists"}