I have DO instance on CentOS Linux and want to setup access using Putty. While i followed all the instructions on PKI , I got stuck on step to update my PUB key on DO SSH directory. Under this directory I have created file name d"authorized_keys“ using VI editor and trying to paste my key in there however results are vague. Key is copied on lower case and all characters are messed up. I have hot roadblock as I cannot do anything with lousy console access.

Second question i have it once key is updated what else need to be checked (like sshd_config) etc and do i need to restart any service to get this in to effect?

I have putty and Mobaterm as my Term applications.

appreciate all you expert help!

Regards,
Himanshu