SSH authentication fails when using Ed25519 + passphrase

[davidleeuk]

To replicate:

1. Generate a key using ssh-keygen -t ed25519
2. When prompted, specify a passphrase
3. Call ssh.authPublickey(username, privateKeyFilePath, passphrase)

Throws "exhausted available authentication methods":

Client identity string: SSH-2.0-SSHJ_0.24.0
Server identity string: SSH-2.0-OpenSSH_7.5p1 Ubuntu-10ubuntu0.1
Keypair is encrypted with: aes256-ctr, bcrypt, ►^ ??KW☻9←?P♦???? ►
Exhausted available authentication methods

I've checked the same works with Ed25519 keys with no passphrase applied; the combination of Ed25519+passphrase appears to be unsupported. Any advice please?

[hierynomus]

Hi @davidleeuk, Can you try to see whether PR #429 works for you?