Cygwin ssh key added, but Git permission denied (publickey)

Question

I have a problem when trying to use Git with Cygwin. I've generated and added ssh key to the GitLab server and everything works just fine through the MINGW64 (cloning, pulling, etc), but I wanted to use Cygwin and found that it doesn't work.

Though I've put copy of my generated key to the ~/user/.ssh folder and manually added key, so "ssh-add -l" prints it in the list, but when I try to fetch repository (or any other server command) I just get:

Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

It looks like a bug, but possibly I'm doing something wrong. Did anyone get this problem? Thank you.

UPDATE: After updating OpenSSH version in Cygwin described problem has gone.

Answer 1

For me, the cause is that I put my ssh key files in C:\Users\username\.ssh (which is /cygdrive/c/Users/username/.ssh in cygwin), but actually, you need to put your ssh keys in ~/.ssh to make it work. They are two different directories.

Run the following command in cygwin solved my problem.

cp /cygdrive/c/Users/username/.ssh/* ~/.ssh/

Notice that you should replace username with your actual one.