### Summary Attempted to add a new ed25519 key to GitLab as a deploy key for specific repository, but returned an error. Turns out, only this specific key causes this issue. Unable to reproduce with other keys. ### Expected Result SSH Public key added as deploy key ### Returned Result Error returned: "Fingerprint cannot be generated..." ### Reproduce 1) Go to page to add deploy key for specific project 2) Attempt to add the following ssh public key as a deploy key: `ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIACf9lz1m7U/sTRyBkxhHDR0ncKIr0NIKzgfe3sQbUnN test@dev` 3) Observe error returned 4) Next, generate a brand new ssh-ed25519 key: ```bash ssh-keygen -t ed25519 -q -f ./testkey -P "" cat ./testkey.pub ``` 5) Add this newly generated key. 6) Observe it probably works with this new key. ### More Details Would consider this a very low priority issue, since simply generating a new key solves the problem. Hopefully not related to a larger issue. On first observance I assumed this might be a decoding issue due to special '/' character in public key, since this is not present on every key. Though I was able to confirm a second key containing this character works just fine. Also can confirm the public key I have provided is valid and was directly generated by `ssh-keygen`: ```bash $ echo "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIACf9lz1m7U/sTRyBkxhHDR0ncKIr0NIKzgfe3sQbUnN test@dev" | ssh-keygen -l -f - 256 SHA256:YXU8GrcSG/mC6HXrHmvzpgT2CDeS83X02lGzf00tzmo test@dev (ED25519) ```