Show HN: OVault – Simple and Local OTP Management for iOS/macOS https://ift.tt/sQ8Wlt3

Show HN: OVault – Simple and Local OTP Management for iOS/macOS OVault is a super simple iOS and macOS app that lets you store and view your OTP codes for two factor authentication. I found that my personal favourite OTP app Authy seemed to be getting worse with each iOS release. Its usability has never been great, and iOS 18 meant that it lost its Home Screen Widget that let me view my OTP codes without opening the app. I decided to switch to another app, then became frustrated that I couldn't easily export my secrets from Authy. Of course I'm sure there are good security related reasons for this, but I didn't want to migrate all my OTPs just to end up in the same situation in the near future. I also didn't want to have to trust another external service with my OTP secrets being stored on their servers (irrational I'm sure). The obvious answer for this would be to use Apples new 2FA support in Keychain, however the usability for this outside of Safari autofill isn't great either. So that's the long-winded reason for why I built my own OTP app. I hope that anyone else feeling the same way will find this app useful. Of course, learning how TOTP codes works was a nice bonus for my curiosity. OVault stores your OTP metadata inside your devices Keychain, so that you don't have to trust any new service with your data. Unless you have iCloud Keychain enabled, this also means your secrets never leave your device. If you do have iCloud Keychain enabled, your OTP metadata will be synced between all your devices, which ensures your data is never lost. The app provides widgets that you can put in your iOS Home Screen or macOS Notification Center so that you can view your OTPs without opening the app. This was my favourite feature of Authy (until iOS 18). To the best of my knowledge, OVault supports all TOTP codes that are compliant with RFC6238 [1], which means that it supports codes of lengths 6-8, three hash algorithms (SHA1, SHA256, SHA512), and all suggested time periods (15s, 30s (default), 45s, 60s). Exposing these options means that it supports a wide array of TOTP codes, even those that seem non-standard (like those used in HID Approve MFA and other "proprietary" 2FA solutions). Your OTP secrets are yours, so OVault allows you to view the saved secret on demand. This gives you enough information to import your OTPs to any other authenticator you want, avoiding lock-in to a specific app. It's worth mentioning that this app isn't designed to be "super high" security. If you already use Keychain for your passwords, you'll find yourself storing OTP secrets and passwords in the same database. Depending on your threat model, this may not be ideal. For me, I'm happy with threat model this leaves me with (I personally prefer to trust fewer parties), but everyone should critically evaluate if this works for them. If you want to evaluate the app, here's how to add a sample OTP: 1. Tap the "+" button in the toolbar, then tap "+ Manual" 2. Switch to the "From URL" tab 3. Paste in the following URL: otpauth://totp/Example:alice@example.com?secret=JBSWY3DPEHPK3PXP&issuer=Example I'd love to hear any feedback, this has been a fun side project and it would be fun to see if it's useful at all to anyone else. [1] https://ift.tt/s4ATdOP https://ovault.net October 23, 2024 at 01:13AM

Show HN: I made a tool for curating and sharing links as lists https://ift.tt/br38mnq

Show HN: I made a tool for curating and sharing links as lists https://snack.xyz/ October 23, 2024 at 02:06AM

Show HN: I made a Sonic runner game in JavaScript https://ift.tt/XTVpUxY

Show HN: I made a Sonic runner game in JavaScript https://ift.tt/7VFRZml October 19, 2024 at 02:36AM

Show HN: I built a tool that helps people scan and clean any repo for secrets https://ift.tt/yuBYp6N

Show HN: I built a tool that helps people scan and clean any repo for secrets https://securelog.com/ October 22, 2024 at 11:48PM

Show HN: Zoom Meeting AI Assistants Powered by OpenAI's Realtime API https://ift.tt/onETupx

Show HN: Zoom Meeting AI Assistants Powered by OpenAI's Realtime API https://ift.tt/cWy4M8V October 22, 2024 at 04:37AM

Show HN: Floating point arithmetic types in C++ for any size and any base https://ift.tt/lzQkZ9Y

Show HN: Floating point arithmetic types in C++ for any size and any base Since there is so much interest on HN in floats lately and their software implementations, I wanted to show mine. It has no use and is just for teaching me floats and C++. Give me your thoughts. https://ift.tt/yfeRD7F October 18, 2024 at 11:12PM

Show HN: Semantic Macros Text Editor https://ift.tt/gFBrsWn

Show HN: Semantic Macros Text Editor https://ift.tt/qg1irWS October 21, 2024 at 03:41AM

Show HN: HN Update – Hourly News Broadcast of Top HN Stories https://ift.tt/PMkOdag

Show HN: HN Update – Hourly News Broadcast of Top HN Stories I feel like it was inevitable, with the recent buzz around NotebookLM. I'm just surprised that it hasn't been done yet. https://hnup.date/ October 20, 2024 at 12:40PM

Show HN: Create mind maps to learn new things using AI https://ift.tt/nT4Mtpu

Show HN: Create mind maps to learn new things using AI Enter a topic and get a learning mind map generated by an LLM with links to learn more about each subtopic. You can use it with local models (through Ollama) or external models. If you have any feedback, please share it! Hope it's useful Demo: https://youtu.be/Y-9He-tG3aM https://ift.tt/oCwhOWd October 21, 2024 at 01:31AM

Show HN: I created a web app to encrypt/decrypt messages using Web Crypto API https://ift.tt/hYL7dRB

Show HN: I created a web app to encrypt/decrypt messages using Web Crypto API https://ift.tt/oUvGm7Y October 20, 2024 at 04:12AM

Show HN: Open-Source Zero-Shot Image Model Server Enabling Model Feedback https://ift.tt/y7MPRoQ

Show HN: Open-Source Zero-Shot Image Model Server Enabling Model Feedback Hi everyone! Here is an open source implementation of a decently performant server hosting zero-shot image models (CLIP for image classification, OWL-ViT-ST for object detection), with an extra algorithm to allow users to give the models feedback when they make mistakes! We built a company off this flavor of tech two years ago and have clients who are currently using our commercial API. We are now moving on to other projects but want to make sure our clients still have access to the approaches that they've grown to rely on, so we're open sourcing a simple implementation that they'll be able to use after we've shut down our hosted API! I used to work at a robotics startup. After a while it seemed clear that the biggest limiting factor in our ability to ship new models wasn't innovation on model architecture, it was access to relevant, high-quality training data. Around that time CLIP was released, which got me thinking about the idea of having models with world-knowledge baked in so as to reduce the amount of training data required. A year later when Stable Diffusion dropped, my cofounder Ben Brooks and I took the plunge and founded DirectAI, where we worked on building ways to get performant models without collecting any training data, using the knowledge stored in pretrained models instead. In this implementation, we replace the linear classification head typically used in zero-shot image classifiers with a modified nearest neighbors method that lets you use multiple examples (both positive and negative) per-class to make sure the decision boundary the model is using is more aligned with what you had in mind. Our clients have found it very useful for things from interior design to content moderation to sports analytics, building models that are either too niche to be supported by a traditional cloud-hosted computer vision API or are subtly different from the models that existing cloud APIs host. For example, one of our clients wants to filter out all images containing alcohol. Hive has an API for that, but Hive explicitly allows red solo cups that don't obviously have anything alcoholic in them, whereas our client wanted to filter those out too! Feedback is welcome! There are still bugs in the Gradio frontend / codebase in general, but I have a deadline and need to be working on new stuff at a new job starting Monday so I thought I would just go ahead and get it out there! I've never tried to publish a real open source piece of code before and I must admit I am quite nervous! https://ift.tt/a7qXJYS October 20, 2024 at 12:21AM

Show HN: I made a site to quick identify any plant and learn how to care for it https://ift.tt/z27qGAl

Show HN: I made a site to quick identify any plant and learn how to care for it I'm still working on it, curious but what feature may be most valuable for you? What do you think about personalised care instructions, and an interactive chat feature for each plant. https://frondly.app/ October 20, 2024 at 02:30AM

Show HN: Contagious Beliefs–Simulating Political Alignment https://ift.tt/nAryOIl

Show HN: Contagious Beliefs–Simulating Political Alignment This is a simulation that allows you to test how beliefs are adopted based on pre-existing beliefs and how they spread through a population. It is entirely editable, so you can test your own parameters based on your own data or intuitions. A detail methodology can be found here: https://ift.tt/eqmY3t0... https://ift.tt/VtvSew0 October 20, 2024 at 12:23AM

Show HN: No Setup Needed Play NES, SNES, Sega, Atari Games Directly in Browser https://ift.tt/OjEgMe2

Show HN: No Setup Needed Play NES, SNES, Sega, Atari Games Directly in Browser Tired of the hassle of setting up classic NES, SNES, Sega, Arcade, and Atari games on modern systems? I have built something way simpler - browser based emulation. Key Features: Instant Play: No downloads or complex configurations required. Extensive Library: Explore iconic titles like Super Mario Bros., The Legend of Zelda, Sonic the Hedgehog, Pac-Man, and Street Fighter II. Seamless Emulation: Enjoy smooth gameplay powered by advanced browser technology. Cloud Saves: Never lose your progress again with cloud saving. Let me know your thoughts/suggestions and help bring back the glory days of old age gaming! https://ift.tt/a2z4nVQ October 19, 2024 at 05:25AM

Show HN: I built a tool that helps people contact you without spam https://ift.tt/K48rAez

Show HN: I built a tool that helps people contact you without spam https://hi.new October 19, 2024 at 05:16AM

Show HN: Run, learn, and debug x86-64 Assembly code directly from your browser https://ift.tt/xNaYR5E

Show HN: Run, learn, and debug x86-64 Assembly code directly from your browser I recently created this project to teach assembly, and to have an assembly playground in the style of codepen/jsfiddle to embed in my blog posts. It's based on a wasm version of the blink x86-64 emulator, so everything runs client side with no backend server and with a runtime of only ~200Kb https://x64.halb.it/ October 18, 2024 at 11:02PM

Show HN: Did – Decentralized global social feed https://ift.tt/HLgvjYh

Show HN: Did – Decentralized global social feed https://ift.tt/b8CYjZe October 18, 2024 at 02:27AM

Show HN: Thread Archive – free tool to save Slack community data https://ift.tt/HujZ8wE

Show HN: Thread Archive – free tool to save Slack community data Slack's new content deletion policy is a nightmare for 1000s of communities on Slack. It means that all messages older than one year will be permanently deleted from their servers. Thread Archive gives you a simple way to save all your Slack community's chats in an accessible archive. https://ift.tt/7mKjAzX October 18, 2024 at 03:30AM

Show HN: React-guitar-chord, a react component for chord name to guitar diagram https://ift.tt/iKaS2Is

Show HN: React-guitar-chord, a react component for chord name to guitar diagram I made a pretty simple react component that takes in a chord name and spits out a guitar chord diagram. So far it has no regard for playability or bar chords or any alternate positions, and doesn't ensure that all the notes of a complex chord are played. It has a bias towards open notes so with enough alterations it tends toward an open strum. Still, it's pretty accurate for simpler 3 or 4 note chords. I think my next step will be ensuring that 4 or less fretted notes are included in a chord diagram, using bar chords and moving up the neck if needed. https://ift.tt/wviWSV8 October 18, 2024 at 12:29AM

Show HN: I made a webapp where you can share your projects https://ift.tt/qetisvE

Show HN: I made a webapp where you can share your projects Hi guys I made this simple web application, you can use it to share your projects. Your project will appear only if you visit the projects of the other users. In the 'you' section, add an app ( name, link, [icon_link]) and apply the starting points you got, to the app so that all the other N users will see it (where N indicates how many points you applied to the app). IT'S TOTALLY FREE NO PASSWORD NEEDED FOR LOGIN https://appearnow.me October 17, 2024 at 10:18PM