ssh key ecdsa_sk support

[markuman]

• Gitea version (or commit ref): 1.11.4
• Git version:
• Operating system: Linux
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
  • mariadb
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (provide example URL)
  • No
  • Not relevant
• Log gist:

Description

openssh 8.2 introduced native u2f support with the new key type ecdsa_sk.
Currently it is not possible to add such key to your gitea profile

error log

2020/04/24 06:50:06 ...user/setting/keys.go:96:KeysPost() [E] AddPublicKey: calcFingerprintSSHKeygen: 'ssh-keygen -lf /tmp/gitea_keytest979760198' failed with error 'exec(101286:AddPublicKey) failed: exit status 255(<nil>) stdout:  stderr: /tmp/gitea_keytest979760198 is not a public key file.\01503d
	': /tmp/gitea_keytest979760198 is not a public key file.\01503d

example public key

sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBGh2rclhwbyMMGVsERVKAgbYMlVmF7r7AYSddt6cZsTnG4V6XA2/mbKZlohsMRRJvURrUb0FR+izCIK9FY52cJwAAAAEc3NoOg== solo

[stale]

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