Fix SSH public key format: use ssh.MarshalAuthorizedKey

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Bug: raw ed25519.PublicKey bytes were stored directly instead of
OpenSSH authorized-key format (ssh-ed25519 AAAA... label).

Fixes:
- internal/sshmanager/fingerprint.go: GenerateKeyPair now uses
  ssh.NewPublicKey + ssh.MarshalAuthorizedKey
- internal/sshmanager/keys.go: EnsureServerKey uses same fix; also
  regenerates .pub file from private key if stored value is corrupt
- internal/sshmanager/fingerprint.go: add MarshalED25519PublicKey,
  PublicKeyFromPrivateKeyFile, RegeneratePublicKeyFromPrivateKeyFile
- internal/models/sshkey.go: add UpdatePublicKey
- internal/api/handlers_sshkeys.go: List+Get recover existing DB
  records with corrupt public keys by regenerating from private key
  file and updating the DB

Also adds golang.org/x/crypto/ssh dependency via go mod tidy.

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This commit is contained in:

Daniel Arroyo

2026-07-08 00:30:57 -04:00

parent e322299dc3

commit 8d0117399c

9 changed files with 118 additions and 8 deletions

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