“Key is invalid” message on GitHub

Question

I have generated SSH keys for a new server installation according to the procedure outlined here. However, when I copy the contents of id_rsa.pub to my keys list on

Answer 1

I just had this issue. Super frustrating. I figured my situation might have affected the casue of the problem. I am using a tablet, trying to setup the key on githubs site through my tablet browser (Chrome) and I am copying the key from an ssh app connected to my remote linux server.

What ended up happening is that somehow when I copied the key to the browser, it introduced a number of line breaks. Not only that, but it also removed a character from each point where a new line was inserted.

So to get it to work, I had to manually find each new line break, then hunt for that part of the key to find the missing character. I then added the character and removed the new line. After I hunted down each and every change, the key worked fine.

By the way, I did not add any new line breaks myself, such as the one mentioned by others after the ssh-rsa.

Hopefully this helps others. I have no idea why it happened. Silly that copying to the clipboard would alter the text copied. Oh, I also copied it right out of Vim.