Alternatives
Products that do what C# implementation of Keyczar encryption framework does
I've been working on a C# implementation of Keyczar or months now. You can find it on github. http://jbtule.github.com/keyczar-dotnet/ It's feature complete, I've done a lot of unit tests, have about 90% code coverage, run various freely available static analysis, built it on linux and windows, but what I've really lacked is another person to actually look at the code. It's easy to make crypto mistakes, even when you know the common mistakes yourself. So I'd appreciate any comments, code reviews, thoughts, and issues. Thanks!
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- 2SE
Hello. I made this project as an experiment in using key cryptography for user identity in a client server model, and for some future peer to peer projects that I am working on. I am looking for feedback, please let me know what you think. Also, Merry Christmas to HN! :-)
2022 · github.com
- 3PO
Hello HN! We are developers and security researchers making tools for developers to encrypt data at an application level while maintaining sole control of their keys. We believe that data should always be encrypted unless it is part of an active computation. Encryption is relatively easy, but key management is challenging. There are plenty of encryption tools and SDKs that are out there (Hashicorp Vault, AWS KMS etc.) but we are focusing on ease and speed of implementation, developer experience and self custody of keys. A few months ago, we quit our jobs and started full time on Phase. So…
2023 · github.com
- 4DO
I’ve developed a new public-key encryption scheme (DIAC) that uses multidimensional, high-precision complex keyspaces and a modular trapdoor function for ultra-high entropy and quantum resistance. The code, benchmarks, and research paper (PDF) are all open-source: https://osf.io/mvkcq/ Would love feedback, questions, or cryptanalysis!
2025 · osf.io
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This project has been kicking around in my head since I first heard about the webauthn PRF extension in early 2024. I've slowly chipped away at it since, and finally got things to a shareable state over the summer thanks to a very fun parental leave. Headed back to work tomorrow, so I figure there's no time like the present. tldr: A client-held encryption key derived during passkey authentication encrypts all sensitive user data prior to persistence so that only the user is able to decrypt and reuse that data on their device. This allows short-lived, privacy-preserving age proofs to be…
18d ago · loginwithone.com
- 6MA
2018 · mycryptowiki.com
- 7AI
I really couldn't find a simple wrapper to pycrypto that would encrypt data correctly in Python 3. So I tried to follow the instructions at http://www.daemonology.net/blog/2009-06-11-cryptographic-right-answers.html (written by HN's cperciva) and wrote https://github.com/andrewcooke/simple-crypt Is that OK? Given the problems Tarsnap had with CTR mode, was it wrong to follow those instructions anyway? Have I got the offset handling right? It seemed like it would be better to write this once, get it revised here, and then publish it (I'll make an egg for pypi once it seems OK) than quietly…
2012
- 8CS
Hi HN, I'm Dan Draper, founder of CipherStash. We've spent 5 years building per-value searchable encryption tech. We realized that encryption like this is incredibly powerful but the engineering required is generally not worth the effort. So we built a platform and opensource SDK to take the cry out of cryptography :) CipherStash Stack is: * A searchable encryption SDK for TS and Postgres * Fast, key management with Zerokms (backed by HSM) * A transparent SQL proxy * Auth library and OIDC federation service * Skills for data security Integrations include Prisma Next, Drizzle, Auth0, Clerk…
May 2026 · cipherstash.com
- 9SH
I have written a passwords/secrets manager for my personal needs. Maybe it solves some of your problems too. It is written in Go and is a self-contained executable for a small web-app: https://github.com/jarmo/secrets-web There is also a CLI version if that is your taste: https://github.com/jarmo/secrets-cli To read about more technical details, look into the core repository at https://github.com/jarmo/secrets Any questions/comments/suggestions are welcome in here or via GitHub pull requests.
2020
- 10CI
2017 · cryptob.in
- 11WI
Show HN: What I learned building a local-only password manager (PassForgePro) Hi HN, I built PassForgePro as a learning project to better understand password manager design, local-first security, and common cryptographic pitfalls. The goal was not to replace mature tools like Bitwarden or KeePass, but to explore: * how a local-only, zero-knowledge style design can work * key derivation with PBKDF2 and encrypted SQLite vaults (AES-256-GCM) * handling sensitive data in memory and clipboard cleanup * defining a realistic threat model and its limitations This project is experimental and…
Jan 2026 · github.com
- 12BI
2022 · badkeys.info
- 13KC
Hi HN, I built KeyEnv because I was tired of the "can you Slack me the Stripe key?" workflow. The problem: My team's secrets lived in a mix of Slack DMs, shared Google Docs, and .env files that definitely weren't in .gitignore at some point. Enterprise tools like Vault required more DevOps time than we had. Doppler was close but felt heavier than we needed. What KeyEnv does: keyenv init # link project keyenv pull # sync secrets to local .env keyenv run -- npm start # inject secrets, run command That's basically it. Secrets are encrypted client-side (AES-256-GCM) before leaving your machine.…
Jan 2026 · keyenv.dev
- 14KA
2017 · github.com
- 15IB
I've always been fascinated by cryptographic principles, so I decided to dive deep into zero-knowledge proofs and implement a Groth16 proof verifier entirely in Rust. This project validates cryptographic proofs and demonstrates how succinct, verifiable computations can be achieved. Using Rust's powerful libraries like arkworks, I implemented pairing checks, public input commitments, and proof validation logic while ensuring the code remains modular and efficient. I handled the complexities of affine group operations, scalar multiplications, and optimized public input verification to make…
2024 · github.com
- 16MT
Long story short: After heartbleed thingy decided to use a password manager. Didn't want to buy one. Didn't like KeepassX interface. Started using MacPass. Tired of bugs and form fillings. Decided to make my own text editor that can encrypt saved files with password. Try it out here: http://textcrypt.4apps.lv/app/updates/TextCrypt_1.0.424.zip and let me know what you think. Would you use it? Any feedback, suggestions which direction to go? p.s. Its an early Alpha version.
2014
- 17
- 18LA
Hey HN, Along with a handful of friends, I've been working on a note taking platform for the last couple years. We created a 2 minute pitch of our platform, if you'd prefer to read, maybe you'd want to checkout our README: https://github.com/lockbook/lockbook. If you don't want to do either of those things I'll try to summarize some of our core values: - everything end to end encrypted - open formats: markdown and svg - strong offline support - everything open source - native apps where possible - rust where possible Some other stuff we're proud of: - we have a CLI which…
2024 · youtube.com
- 19GA
I started working on this back in 2019, mostly as a design idea. Over the last month I made a big push to make it 100% usable and replace C# in all my personal projects. I now feel it's solid enough to gather feedback from other developers. If you take it for a spin, I hope you enjoy it and send your thoughts!
Jun 2026 · davidobando.github.io
- 20IC
I summarized everything I learned while working on Keycloak during the past years
2023 · udemy.com
- 21DS
2018 · coincodecap.com
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Generate secure keys, passwords, and tokens instantly
Jul 2026 · freewww.com
- 23OP
I, like Andrej Karpathy, became super frustrated by how annoying it was to deploy projects that were previously an absolute joy to make with Claude Code. That is why I made open-passkey, an MIT licensed passkey repo with support for 33 languages and frameworks (examples included) that makes adding simple secure auth to a project easy. We are also releasing gateway (https://gateway.locke.id) a "backendless" hosted auth server that frontend apps can consume for free so that you can ship a React or Angular app using a CDN like Netlify without needing to configure a server at all. We…
Apr 2026 · github.com
- 24PE
Hi HN, I’ve been working for the past 10 months on p2party, a TypeScript/C/WASM library which you can find at https://github.com/p2party/p2party-js and demo at https://p2party.com , that lets you spin up an encrypted peer-to-peer mesh with nothing more than a shared URL. Why I built it: I wanted something between https://file.pizza and “ephemeral Signal chat”, but with my custom cryptographic idea (I know I know... WebRTC is already encrypted and it is easy to go wrong etc.). The project started as a toy for sharing large DAW files with my…
2025 · github.com
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