Three streaming (like pointed in the other comment) was my initial reaction too, but indeed at the time https for streaming would be very rare.

Another possibility is to realize that openssl isn’t just for communication, but also has implementation of cryptographic algorithms.

Perhaps openssl was used for validation of licensing key? For example they could sign the license with their private key and WinAmp could verify it’s authenticity with its public key.

In some cases it works, in some it doesn’t. PostgreSQL for example for huge support after Oracle got control of MySQL, despite the license.

There are some red flags for me:

• first I doubt anyone compiled the code themselves and use what’s in the app store
• the insistence to be tied to the phone number
• refusing to work if you don’t update (in the app store)

Did you compile and use that on your phone or are you using the app in the app store?

Do we know how it does that. Signal is praised for security, but a lot of things it does feel iffy and don’t make me trust it.

To add to that. Russian government was demanding to be able to access messages or will ban Telegram in the country.

Did not hear anything beyond that, but Telegram continues to operate there.

If I had this requirement I would just generate a file of specific size, place it on one server and on the other I would have a shell script running via cron and measure the time it took to download the file.

It seems like a relatively simple problem.

BTW are you sure you want to test download speed and not latency? I think some routers might have the later built in.

I guess no one offered anything for .internal