git@gitee.com: Permission denied (publickey), not a common problem, to be solved

Question

About publickey: I configured it a year ago and it works fine!

However, I can't push to any gitee repositories from yesterday.

Permission denied (publickey)

But it works well in github?! (I'm sure I'm using the same publickey and it was added before)

After running $ ssh -Tvvv git@gitee.com , I got the following message:

# other infos
debug1: Trying private key: /c/Users/57715/.ssh/id_dsa
debug3: no such identity: /c/Users/57715/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /c/Users/57715/.ssh/id_ecdsa
debug3: no such identity: /c/Users/57715/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /c/Users/57715/.ssh/id_ecdsa_sk
debug3: no such identity: /c/Users/57715/.ssh/id_ecdsa_sk: No such file or directory
debug1: Trying private key: /c/Users/57715/.ssh/id_ed25519
debug3: no such identity: /c/Users/57715/.ssh/id_ed25519: No such file or directory
debug1: Trying private key: /c/Users/57715/.ssh/id_ed25519_sk
debug3: no such identity: /c/Users/57715/.ssh/id_ed25519_sk: No such file or directory
debug1: Trying private key: /c/Users/57715/.ssh/id_xmss
debug3: no such identity: /c/Users/57715/.ssh/id_xmss: No such file or directory
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
git@gitee.com: Permission denied (publickey).

I've been searching for that answer all day, could somebody help to solve the tough problem?

I would appreciate it very much!

Answer 1

If you tried ed25519 the first time, maybe add

Host gitee.com
    IdentityFile ~/.ssh/id_ed25519

to ~/.ssh/config should work.

Answer 2

First, if this was working before, that would mean you are sharing one SSH key between multiple destinations, which is not a good practice.

As explained in "Generate/add SSH public key", I would generate a new key dedicated for gitee access/authentication

cd %USERPROFILE%\.ssh
ssh-keygen -t ed25519 -C  "xxxxx@xxxxx.com"  -P "" -f gitee

Note the recommended protocol here: ed25519. rsa might no longer be allowed.

Copy the generated ssh key, and add the generated public key to the warehouse via "Management" -> "Deployment Public Key Management" -> "Add Deployment Public Key" on the warehouse homepage .

Then create a %USERPROFILE%\.ssh\config file, with in it:

Host gitee.com 
HostkeyAlgorithms +ssh-rsa 
PubkeyAcceptedAlgorithms +ssh-rsa

Test this is working with ssh -T git@gitee.com

Finally, in the root folder of your local repository:

git remote set-url origin giteee:<me>/<myProject>