Crypto-puzzle Alternatives
Similar projects and alternatives to crypto-puzzle based on common topics and language
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2captcha-php
PHP package for easy integration with the API of 2captcha captcha solving service to bypass recaptcha, hcaptcha, funcaptcha, geetest and solve any other captchas.
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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.
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next-hcaptcha
🤖 Robust, dependency free and highly configurable solution for guarding Next.js API Routes through higher order function with HCaptcha
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friendly-challenge
The widget and docs for the proof of work challenge used in Friendly Captcha. Protect your websites and online services from spam and abuse with Friendly Captcha, a privacy-first anti-bot solution.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
crypto-puzzle reviews and mentions
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mCaptcha: Open-source proof-of-work captcha for websites
Funnily enough I've recently implemented [0] a little proof-of-work generator (or more specifically a time-lock puzzle [1] generator), which is the base building block on top which something like this can be built.
It's a very cool idea imo, you generate a cryptographic puzzle that's cheap for you to make, cheap for you to verify if its solved, and potentially cheap-enough for legitimate users to solve, but expensive-enough that users making too many requests would find solving them prohibitively expensive.
I wish something like this was bolted onto email protocols, it would just cost more to be a spammer than it'd be worth it.
Interesting how mCaptcha seems based on sha256, I don't know enough but it would be worth checking how much the algorithm can be sped up with (already existing) dedicated ASICs, if the attacker can solve the puzzle like 10000x faster than normal users you just can't crank the difficulty of the puzzle high enough and for motivated attackers this becomes basically useless. Basing this of on repeated squarings, like the RSW paper on time-lock puzzles did, seems potentially better.
[0]: https://github.com/fabiospampinato/crypto-puzzle
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Silent SHA256 based proof-of-work(PoW) captcha solution
Nice! I had written a little algorithm that one could use to implement something like this (maybe interesting if you want to understand how it could work): https://github.com/fabiospampinato/crypto-puzzle
I think there's something to this, it costs you next to nothing to generate these puzzles and get a guaranteed, tunable, slowdown factor on attackers (or cost increase for them I guess).
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fabiospampinato/crypto-puzzle is an open source project licensed under MIT License which is an OSI approved license.
The primary programming language of crypto-puzzle is TypeScript.
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