Open-source alternatives to RsaCtfTool

This project is a toolkit for creating and managing X.509 certificate authorities, providing tools for the issuance, signing, and management of TLS certificates and private keys. It includes a command-line utility for generating certificate signing requests, bundling certificate chains, and parsing PEM or DER files. The system features an HTTP API server that allows for remote signing and verification of certificates using JSON requests and responses. This architecture supports automated certificate provisioning and includes a signing proxy to forward requests to remote backend services. The

This project is a collection of reference implementations for algorithms, mathematics, cryptography, compression, and machine learning written in C#. It serves as an educational library providing standard implementations of sorting, searching, and graph theory algorithms. The repository covers a wide range of computational domains, including combinatorial optimization for constraint satisfaction and scheduling, as well as symmetric and classical cryptographic ciphers. It also provides reference code for lossless data compression techniques and fundamental machine learning primitives such as r

This project is a comprehensive suite of essential command-line tools and standardized Unix-like utilities. It provides the fundamental building blocks for system administration, file management, and text processing on Unix-like systems, implementing a wide range of POSIX command-line tools. The collection is distinguished by its broad coverage of low-level system operations. This includes a complete toolkit for file system management, such as creating and modifying files and directories, and a specialized text processing toolkit for filtering, sorting, and transforming data streams. The pro

This project is a comprehensive directory of software utilities, frameworks, and educational resources designed for cybersecurity competitions and offensive security research. It serves as a centralized index for tools used in cryptography, forensics, reverse engineering, and web exploitation, while providing structured materials for training and skill development. The repository distinguishes itself through a community-driven maintenance model that aggregates and organizes technical resources into a searchable, hierarchical structure. It facilitates knowledge transfer by cataloging expert pr

Pwntools is a Python-based framework designed for rapid prototyping and automation in binary exploitation, reverse engineering, and security research. It serves as a comprehensive toolkit for interacting with local and remote processes, providing the primitives necessary to manage complex exploit workflows and streamline security analysis tasks. The framework distinguishes itself through its specialized capabilities for binary manipulation and automated exploit construction. It includes dedicated utilities for parsing executable file formats, assembling and disassembling machine code, and gen

30 Seconds of Python is a curated collection of short, reusable Python code snippets designed for quick reference and immediate reuse. It provides an interactive browser that lets you explore snippets organized by tags, search across names and descriptions, and copy code to your clipboard with a single click. The collection covers a broad range of common programming tasks, including list and dictionary operations, string formatting and manipulation, date and time calculations, and color format conversion. It also includes utilities for data transformation, such as converting between case styl

This project serves as a comprehensive cybersecurity training platform and resource repository focused on web application security. It functions as a centralized hub for security practitioners, providing both a curated collection of technical documentation and research, and a system for deploying isolated, containerized environments to practice security analysis and exploitation techniques. The platform distinguishes itself by integrating automated data aggregation with hands-on, container-based orchestration. It maintains a current knowledge base of industry research and digital threats whil

This project is a comprehensive, community-curated directory of cybersecurity resources, tools, and educational materials. It functions as a centralized index for researchers and students to discover frameworks and utilities across the entire security lifecycle, ranging from initial vulnerability assessment to post-exploitation analysis. The repository distinguishes itself through a hierarchical taxonomy that organizes diverse security disciplines into a searchable, version-controlled knowledge base. Rather than hosting software directly, it utilizes a decentralized aggregation model that lin

This project is a security tool installation framework and binary analysis toolkit designed to automate the deployment of research utilities. It provides a containerized security research environment and a system for managing Python and Ruby virtual environments to prevent dependency conflicts on the host machine. The framework distinguishes itself through a structured tool catalog and provisioning scripts that automate the installation of utilities into isolated directories. It utilizes executable symlink mapping to provide a unified command interface and supports the bootstrapping of consis

This is a collection of standard data structures and algorithmic implementations written in Rust. It provides a suite of specialized libraries designed for competitive programming and systems engineering. The project is organized into distinct toolkits for graph theory, number theory, range queries, and string processing. It includes implementations for computing shortest paths and network flows, performing primality tests and modular arithmetic, and managing associative range queries. The library covers broad computational areas including signal processing via fast Fourier transforms, text

OkHttp is an HTTP client for the JVM and Android that enables network communication via synchronous and asynchronous requests. It provides a core identity as a comprehensive networking toolkit featuring a WebSocket client for bidirectional data synchronization, a TLS security toolkit for encrypted communication, and a programmable HTTP mock server for simulating backend responses. The project distinguishes itself through a specialized security and performance architecture. It implements mutual TLS, certificate pinning, and DNS over HTTPS to secure data in transit, while utilizing connection p

Sekey is a hardware-backed SSH key manager and authentication agent designed to isolate private keys from system memory. It utilizes a secure enclave to generate, store, and manage cryptographic key pairs, ensuring that sensitive material remains within a protected hardware environment and cannot be extracted by the host system. The project implements biometric-gated request signing, requiring a biometric authentication event before the hardware security module signs a cryptographic challenge. It functions as a middleware bridge that connects standard SSH protocols to these hardware-based sig

SSH.NET is a .NET library that implements the SSH-2 protocol for encrypted remote connections and secure file transfers. It provides a complete SSH-2 protocol stack implementation with a channel multiplexing engine that manages multiple concurrent channels over a single connection, supporting simultaneous shell sessions, remote command execution, SFTP transfers, and port forwarding tunnels. The library includes a pluggable authentication pipeline supporting password, public key, certificate, keyboard-interactive, and multi-factor authentication combinations. The library distinguishes itself t