Seal VS HElib

Don't know about Ymusic as it doesn't seem open source, but seal [0] seems like a good alternative, based on yt-dl

0: https://github.com/JunkFood02/Seal

Seal- download anything.

Install Seal → Open YT Music → Tap on the 3 dots → Share → Select the Seal app

https://github.com/JunkFood02/Seal/issues

Seal for Android

https://github.com/deniscerri/ytdlnis & https://github.com/JunkFood02/Seal Downloader for YT, TikTok, Instagram, Twitter and so on

Seal - open source video/audio downloader

On Android, you can use Seal[1] to download YT videos locally. It also supports many other sites.

[1] https://github.com/JunkFood02/Seal

There are also other ones like Powertube, Seal, Tubemate, SpotiFlyer(for music). Use whichever one you like.

If you want to use a downloader other than NewPipe, (such as Seal or YTDLnis you need to set it up in YT ReVanced

For clarity, let's assume the hospital stores its records in plaintext. For the pharma company, the hospital encrypts the patient records with a secret key. Now they let the pharma company run their homomorphic algorithm and send the values back. Only problem is the pharma company can not read those results without having access to the key. FHE is completely redundant in this use case - the hospital could have simply run the pharma company's SQL and audited the code and outputs.

What is FHE actually good for then? Let's imagine you are a top secret agent and you get instructions to fly to Bulgaria as a part of your mission. You have other hostile agents constantly monitoring you, trying to understand your next move. But there's a problem - to buy a plane ticket to Bulgaria you need to know the name of it's capital city. You can't just type it to Google, because these other agents have infiltrated the Google servers and see what you search (assume once you actually know the name of the capital, you somehow buy the actual ticket without "them" knowing..)

Lukcily though, CloudCorp offers a public homomorphic query service for all world capitals. This service allows you to send a query for the capital of any country over an intercepted connection, and get back the result. Even if the hostile agents had infiltrated CloudCorp and were monitoring all your comms, they would not be able know which country's capital you just queried.

How such service would be implemented is explained in good detail in this tutorial: https://github.com/homenc/HElib/tree/master/examples/BGV_cou...

P.S. The capital of Bulgaria is Sofia.

While I was searching for homomorphic encryption tools/libs, I stumbled upon this.

FHE has been around for a while now, IBM: https://github.com/homenc/HElib and Microsoft: https://www.microsoft.com/en-us/research/project/microsoft-seal/ both have their own (much more mature) FHE implementations.