Standalone EVM contract call challenge for pkc-js

Stateless server-side challenge generator and verifier for Cap, a lightweight, modern open-source CAPTCHA alternative. No storage, no filesystem - bring your own.

React component library for the City Nature Challenge project.

Challenge generation and cryptographic verification for HATCHA

ACME challenge test harness for Let's Encrypt integrations. Any `acme-http-01-` or `acme-dns-01-` challenge strategy or Greenlock plugin should be able to pass these tests.

Bitsocial Spam Blocker challenge implementation for PKC

Generate Proof Key for Code Exchange (PKCE) challenge pair compatible with Coherent GT.

The design for the first Lux AI Challenge

Kradle's challenges SDK: write a Minecraft challenge as a reducer that the arena runs

Vue renderer for Inlay two-factor authentication challenge and settings screens.

Generates a verifier and a challenge according to rfc7636.

The web-threeds package is a JavaScript/TypeScript library designed to simplify the implementation of 3DS (3D Secure) authentication processes in web applications. It provides a streamlined interface for handling both the session creation and challenge st

a WASM crate to expose functionality from challenge-bypass-ristretto

Client-side helpers for the access_gate NFT access primitive: ownership queries, purchase/consume PTB builders, challenge signing, and access-proof assembly.

Unofficial utilities for Hola's Mail Filter Challenge

React renderer for Inlay two-factor authentication challenge and settings screens.

Challenge common

A fs-based strategy for node-letsencrypt for setting, retrieving, and clearing ACME challenges issued by the ACME server

Official TypeScript SDK for the Resolvr challenge automation API

<b> A simple CTF challenge </b> <br> Try using the [<_ Try on Runkit](https://runkit.com/npm/npm-ctf-challenge) to get the flag!