Quote from: bob123 on Today at 10:02:13 AM

Quote from: tobben1998 on Today at 09:51:19 AM

Do you have a link to scheme that is made and approved by cryptographer, that i am able to do with pen and paper and would require 2 of 4 parts? I would be more than happy to use that, but I have not been able to find it.

Secret sharing schemes usually involve mathematics (and not just simple calculations).
You can do every scheme with pen and paper, altough it is not that easy.

Sharing schemes based on the chinese remainder theorem aren't that hard to calculate with pen and paper (and a calculator maybe).
Take a look at Mignotte's and Asmuth-Bloom's sharing schemes. There is even an example on wikipedia on how to split and retrieve the secret.

You can definitely do them without a computer. However using a small (even self-written) script which implements that scheme should be fine too from a security-related point of view. But then, i don't know what your thread model is and why you want to do it with pen/paper only.

Thanks, i will look it up. I want to do it on pen and paper, so that I never have to type my hole private key into a computer. I do not have any good hardware that i do know for sure that no one has been hacked or spyed on in some kind of way.

The model is simply lots of one timpads combined in a way that that i only two parts to construct back to the original. I have found serval posts on rediit, bitcointalk etc that describe this method with 2 of 3, I have simply added more onetime pads and combined them to fit with 2 of 4