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Ciphey ⭐ 16,681

⚡ Automatically decrypt encryptions without knowing the key or cipher, decode encodings, and crack hashes ⚡

Ctf Wiki ⭐ 7,363

Come and join us, we need you!

Ctf All In One ⭐ 3,754

CTF竞赛权威指南

Crypton ⭐ 1,417

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

Toolsfx ⭐ 1,208

基于kotlin+tornadoFx的跨平台密码学工具箱.包含编解码,编码转换,加解密, 哈希,MAC,签名,大数运算,压缩,二维码功能,ctf等实用功能,支持插件

Captfencoder ⭐ 1,088

Captfencoder is opensource a rapid cross platform network security tool suite, providing network security related code conversion, classical cryptography, cryptography, asymmetric encryption, miscellaneous tools, and aggregating all kinds of online tools.

Crypto Attacks ⭐ 694

Python implementations of cryptographic attacks and utilities.

Berylenigma ⭐ 573

ffffffff0x team toolset for penetration testing, cryptography research, CTF and daily use. | ffffffff0x 团队工具集，用来进行渗透测试，密码学研究，CTF和日常使用。

My CTF journey since 2015. Stats, writeups, code snippets, notes, challenges.

Basecrack ⭐ 422

Decode All Bases - Base Scheme Decoder

Damn Vulnerable Defi Foundry ⭐ 406

Damn Vulnerable DeFi - Foundry Version

Ctf Challenges By Me ⭐ 391

Pwnable|Web Security|Cryptography CTF-style challenges

CTF Cheat Sheet + Writeups / Files for some of the Cyber CTFs that I've done

Ctf Writeups ⭐ 288

Collection of scripts and writeups

Python Codext ⭐ 250

Python codecs extension featuring CLI tools for encoding/decoding anything

Ctf Awesome Resources ⭐ 185

A list of Capture The Flag (CTF) frameworks, libraries, resources and software for started/experienced CTF players 🚩

Write Up ⭐ 176

😼 CTF write-ups

Ctf Tools ⭐ 173

Useful CTF Tools

Ctf Crypto ⭐ 165

Contains tools for solving RSA and other crypto problems in CTFs.

Lctf2017 ⭐ 159

Source code, writeups and exps in LCTF2017.

Picoctf2021 Writeup ⭐ 148

Solutions (that we managed to find) for the 2021 PicoCTF

Crypto Commons ⭐ 145

Small python module for common CTF crypto functions

CRY.ME (CRYptographic MEssaging application)

Starctf2018 ⭐ 138

Official repository containing files related to *ctf 2018

Sec Pentesting Toolkit ⭐ 130

👾 𝘁𝗼𝗼𝗹𝘀 𝗳𝗼𝗿 𝘀𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗿𝗲𝘀𝗲𝗮𝗿𝗰𝗵𝗲𝗿𝘀: 𝗽𝗲𝗻𝘁𝗲𝘀𝘁𝗶𝗻𝗴, 𝗖𝗧𝗙𝘀 & 𝘄𝗮𝗿𝗴𝗮𝗺𝗲𝘀

Ctf 2017 Release ⭐ 121

BSidesSF CTF 2017 release

Many-Time Pad Interactive

Tryhackme ⭐ 111

Master cybersecurity skills with this TryHackMe free path, includes a collection of my write-ups, solutions and progress tracking.

Crypto_identifier ⭐ 108

Crypto tool for pentest and ctf : try to uncipher data using multiple algorithms and block chaining modes. Usefull for a quick check on unknown cipher text and key dictionnary

Pathwar ⭐ 102

☠️ The Pathwar Project ☠️

2018 Qwb Ctf ⭐ 100

2018强网杯CTF___题目整理

Tomatotools ⭐ 87

TomatoTools 一款CTF杂项利器，支持36种常见编码和密码算法的加密和解密，31种密文的分析和识别，支持自动提取f

Inequality_solving_with_cvp ⭐ 85

CVP "trick" for CTF challenges

Cryptography Tool | RSA Attacks

Tools to solve CTF crypto challenge.

Ctf_onlinetools ⭐ 70

Repository to index useful online tools for CTF

🏴 Collection of CTF solutions

Crypto Course ⭐ 65

An open source practical cryptography course for CTF player

Cryptography_writeups ⭐ 65

Cryptography & CTF Writeups

2018 Ctf Game ⭐ 62

Repo containing links to all CTF Challenges used in the 2018 MITRE CTF. http://mitrecyberacademy.org/

Nsa Codebreaker 2020 ⭐ 62

My solutions to the 2020 NSA Codebreaker Challenge

Rsacracker ⭐ 60

Powerful RSA cracker for CTFs. Supports RSA, X509, OPENSSH in PEM and DER formats.

Tryhackme Write Up ⭐ 56

The entire walkthrough of all my resolved TryHackMe rooms

Hacking Resources ⭐ 55

This repository contains some resources for ethical hackers penetration tester 😊 This may contain some files, tools, books, and links that need to be used for good purposes only. Do not do any illegal work using these sources.

Awesome Infosec ⭐ 52

A curated list of awesome infosec blog posts, courses, books and more!

Ctf Write Ups ⭐ 51

Write-ups for CTF challenges.

Hackthebox Writeups ⭐ 50

Writeups for all the HTB machines I have done

Ctfsolutiontypes ⭐ 45

A collection of CTF solution types, i.e. not solutions to specific CTF challenges, but the general categories that those solutions fall under. Includes CTF solution categories for web, binary, network, crypto, and others. Please contribute!

Cryptanalysis ⭐ 45

This is my personal (big) recopilation about cryptanalysis, crypto tools and challenges

Cryptiontool ⭐ 41

一个CTF+渗透测试工具框架,集成常见加解密，密码、编码转换，端口扫描，字符处理等功能

Justctf 2019 ⭐ 35

justCTF 2019 challenges sources

Cryptochallenge18 ⭐ 35

Kudelski Security's 2018 pre-Black Hat crypto challenge

Harekazectf2019 Challenges ⭐ 33

Harekaze CTF 2019 challenges

Cryptools ⭐ 33

Useful crypto tools for CTF

CTF tool for identifying, brute forcing and decoding encryption schemes in an automated way

Padding_oracle.py ⭐ 30

Fast threaded padding oracle attack automation script for Python 3.

My Public Ctf Challenges ⭐ 29

Repo for collecting part of my public CTF challenges

Rhme 2016 ⭐ 28

The RHme2 (Riscure Hack me 2) is a low level hardware CTF challenge that comes in the form of an Arduino Nano board. The new edition provides a completely different set of new challenges to test your skills in side channel, fault injection, cryptoanalysis and software exploitation attacks.

Ctf Wr1t3ups ⭐ 27

Repository to store summaries of CTF challenges

Sctf2017 ⭐ 26

Samsung CTF 2017 Problems. https://sctf.codeground.org

Ctf Cryptotool ⭐ 26

CTF-CryptoTool is a tool written in python, for breaking crypto text of CTF challenges. It tries to decode the cipher by bruteforcing it with all known cipher decoding methods easily. Also works for the cipher which does not have a key.

Ctfcryptotool ⭐ 25

A tool for automated analysis of ctf type crypto challenges

My Public Ctf Challenges ⭐ 24

Repo for colecting all my public CTF challenges

Ctf Write Up ⭐ 22

TEAM BAY'S CTF WRITE UP

Ctf Writeups ⭐ 22

CTF programs and writeups

Security Resources ⭐ 19

A list of stuff to learn more about security!

Tsgctf2020 ⭐ 19

Everything about TSG CTF 2020

B01lers Ctf 2020 ⭐ 17

Public release files for b01lers-ctf

Myreverseexps ⭐ 16

Some common reverse exps in CTF.自己总结编写的一些逆向常用脚本&&常见加密/编码的实现源码和比赛时用的处理脚本。

Cypherpunks Core.github.io ⭐ 16

🚀 密碼龐克官方網站

Dc540 0x00005b ⭐ 16

DC540 hacking challenge 0x00005b.

Riceteacatpanda ⭐ 16

repo with challenge material for riceteacatpanda (2020)

Cuctf 2019 Challenges ⭐ 15

Challenges used in CUCTF 2019

My Ctf Challenges ⭐ 15

🧩 Collection of CTF challenges written by me

Ritsec Ctf 2018 ⭐ 14

Official challenge and writeup repository for RITSEC CTF 2018.

Ctf_resources ⭐ 14

Hi, guys. In this repo, i'll be posting resources related to different categories of CTF challenges.

封装多种CTF和平时常见加密及编码C#类库

Tryhackme ⭐ 13

The source files of my completed TryHackMe challenges and walkthroughs with links to their respective rooms

Coppersmith Algorithm ⭐ 13

Implements Coron's simplification of Coppersmith's algorithm

Otwadvent2019 Ctfwriteup ⭐ 12

Writeup for the OverTheWire Advent Bonanza 2019 CTF (https://advent2019.overthewire.org/)

Bytectf Writeups ⭐ 11

ByteCTF 2020 - The third edition of ByteCTF, Organized by Byte Club.

Cryptanalysis library for breaking classical ciphers

Awesome Ctf Crypto ⭐ 10

useful crypto resources for CTF competition.

Resources ⭐ 10

Useful books, links, blogs, etc.

Forthectf ⭐ 10

A library of tools I assembled from various sources in preparation for the REDEYE hack night ctf

2015 Ctf Game ⭐ 10

Repo containing links to all CTF Challenges used in the 2015 MITRE CTF.

Sunshinectf 2019 Public ⭐ 10

Repository of challenges for SunshineCTF 2019

2013 Ctf Game ⭐ 9

Repo containing links to all CTF Challenges used in the 2013 MITRE CTF.

Ccsc Ctf 2020 ⭐ 8

All challenges for the CCSC 2020 CTF

Library of Crypto exploits

Cyberhub Ctf Guidebook ⭐ 8

English translation of Cyberhub CTF guidebook + add-ons

Greenwhisper ⭐ 8

Simple script that checks to see if there are any hidden/encoded strings in a file, useful for Steganography challenges.

Security Workshops ⭐ 8

MOVED HERE => https://github.com/PoCFrance/security-workshops .All security workshops organized to introduce students to security with CTF-like exercices.

Command-line Cryptanalysis

Cybersec Writeups ⭐ 7

That's a repo where I'll upload writeups for different topics related to cybersecurity.

Moderncryptolib ⭐ 7

Python cryptography library

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