CTFNote
CTFNote is a collaborative tool aiming to help CTF teams to organise their work. (by TFNS)
Crypton
Library consisting of explanation and implementation of all the existing attacks on various Encryption Systems, Digital Signatures, Key Exchange, Authentication methods along with example challenges from CTFs (by ashutosh1206)
SurveyJS - Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App
With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
surveyjs.io
featured
| CTFNote | Crypton | |
|---|---|---|
| 2 | 1 | |
| 493 | 1,171 | |
| 3.9% | - | |
| 9.5 | 0.0 | |
| 6 days ago | almost 3 years ago | |
| TypeScript | Python | |
| GNU General Public License v3.0 only | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
CTFNote
Posts with mentions or reviews of CTFNote.
We have used some of these posts to build our list of alternatives
and similar projects.
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CTF Notes
I suck at taking notes lol but a useful tool I have used with my team for collaboration is CTFNote. You may need to deploy and manage the server yourself but it is a pretty good tool.
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Documenting steps taken when doing ctfs
Sure! If you're working with a team it makes it much easier for someone to assist you if there is a summary of what you did and tried (eg. using https://github.com/TFNS/CTFNote during a CTF). Afterwards it's also a good way to structure and distil a bit the solution, and make a good reference for the future if you stumble upon a similar problem. Lots of people publish their writeups.
Crypton
Posts with mentions or reviews of Crypton.
We have used some of these posts to build our list of alternatives
and similar projects.
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Cyber Apocalypse CTF 2022 Writeup - Down the Rabinhole
n = 56438641309774959123579452414864548345708278641778632906871133633348990457713200426806112132039095059800662176837023585166134224681069774331148738554157081531312104961252755406614635488382297434171375724135403083446853715913787796744272218693049072693460001363598351151832646947233969595478647666992523249343972394051106514947235445828889363124242280013397047951812688863313932909903047 e = 2 B = 263063435253385937926984981365320113271 c1= 429546912004731012886527767254149694574730322956287028161761007271362927652041138366004560890773167255588200792979452452 c2= 29903904396126887576044949247400308530425862142675118500848365445245957090320752747039056821346410855821626622960719507094119542088455732058232895757115241568569663893434035594991241152575495936972994239671806350060725033375704703416762794475486000391074743029264587481673930383986479738961452214727157980946 delta = (B + n) >> 1 c1 = (c1 + delta^2) % n c2 = (c2 + delta^2) % n # Source: https://github.com/ashutosh1206/Crypton/blob/master/RSA-encryption/Attack-Franklin-Reiter/exploit.sage def gcd(a, b): while b: a, b = b, a % b return a.monic() def franklinreiter(C1, C2, e, N, a, b): P. = PolynomialRing(Zmod(N)) g1 = (a*X + b)^e - C1 g2 = X^e - C2 result = -gcd(g1, g2).coefficients()[0] return result def int_to_bytes(x: int) -> bytes: return x.to_bytes((x.bit_length() + 7) // 8, 'big') bg = 0x272727272727272727272727272727272727272727272727272727272727272727272727272727 soln = franklinreiter(c2, c1, e, n, 1 << 312, bg + delta - (delta << 312)) - delta print(int_to_bytes(int(soln)))
What are some alternatives?
When comparing CTFNote and Crypton you can also consider the following projects:
CTFever - Fantastic toolkit for CTFers and everyone.
Name-That-Hash - 🔗 Don't know what type of hash it is? Name That Hash will name that hash type! 🤖 Identify MD5, SHA256 and 300+ other hashes ☄ Comes with a neat web app 🔥
CTFs - CTF Cheat Sheet + Writeups / Files for some of the Cyber CTFs that I've done
like-dbg - Fully dockerized Linux kernel debugging environment
featherduster - An automated, modular cryptanalysis tool; i.e., a Weapon of Math Destruction
juice-shop - OWASP Juice Shop: Probably the most modern and sophisticated insecure web application
nsa-codebreaker-2020 - My solutions to the 2020 NSA Codebreaker Challenge
Ciphey - âš¡ Automatically decrypt encryptions without knowing the key or cipher, decode encodings, and crack hashes âš¡
ctfcli - ctfcli is a tool to manage Capture The Flag events and challenges