[jinseokim]

Where would be the sanest choice if I need some CPU computational resources (say, 10k CPU-hours)? Researchers simply used DigitalOcean (under their generous resource grants), but I believe there would be another better way for computing if I can't get such donation...

[bufferoverflow]

https://www.serverhunter.com

You can find much cheaper CPUs outside of the main cloud providers.

[LoganDark]

Woah, this website is awesome! Thank you!

[zmgsabst]

Just use AWS?

At the moment, spot price on a m5.24xlarge is $1/hr for 96 cores and ~300GB of RAM.

That’ll get it done for around $100 — assuming you can checkpoint and tolerate the risk of a shutdown. (The on-demand price is $4.60/h; $475 total.)

[segfaultbuserr]

Using the example in this article as a demo, on AWS, it takes $75 and 4 hours to crack a RSA-512 key, and it was the 2015 number. So it's certainly the correct choice here.

https://arstechnica.com/information-technology/2015/10/break...