(VB.NET) Generate ed25519 Key and Save to PuTTY Format

Generates an ED25519 key and saves to PuTTY format.

Note: This example requires Chilkat v9.5.0.83 or greater.

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

' Note: Requires Chilkat v9.5.0.83 or greater.

' This requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim key As New Chilkat.SshKey

Dim success As Boolean = key.GenerateEd25519Key()
If (success <> True) Then
    Debug.WriteLine(key.LastErrorText)
    Exit Sub
End If


' We can optionally set a comment to be included in the exported key.
key.Comment = "This is my new ed25519 key."

' Export the ed25519 private key to unencrypted PuTTY format:
Dim exportEncrypted As Boolean = False
Dim exportedKey As String = key.ToPuttyPrivateKey(exportEncrypted)
success = key.SaveText(exportedKey,"qa_output/privkey_putty_unencrypted.ppk")

' The unencrypted PuTTY key looks like this:

' 	PuTTY-User-Key-File-2: ssh-ed25519
' 	Encryption: none
' 	Comment: This is my new ed25519 key.
' 	Public-Lines: 2
' 	AAAAC3NzaC1lZDI1NTE5AAAAIJn6m7yKzkAAHXzzjE1zv4RqtdE8r5eTegcpbNDF
' 	OPYs
' 	Private-Lines: 1
' 	AAAAIFgwbZ38AR9Oiw930wsCcCGymQRBa2Y7qBq6R3HCe9VL
' 	Private-MAC: 892573676dd13ef70b6ab7ef219decdfbd5b1857


' Export the ed25519 private key to encrypted PuTTY format:
key.Password = "secret"
exportEncrypted = True
exportedKey = key.ToPuttyPrivateKey(exportEncrypted)
success = key.SaveText(exportedKey,"qa_output/privkey_putty_encrypted.ppk")

' The encrypted PuTTY key looks like this:

' 	PuTTY-User-Key-File-2: ssh-ed25519
' 	Encryption: aes256-cbc
' 	Comment: This is my new ed25519 key.
' 	Public-Lines: 2
' 	AAAAC3NzaC1lZDI1NTE5AAAAIJn6m7yKzkAAHXzzjE1zv4RqtdE8r5eTegcpbNDF
' 	OPYs
' 	Private-Lines: 1
' 	aIa9mY22htPElPgWhtXesp97662JECxaSsnNqvhD06P+o18immv8ohn73vI/bhQB
' 	Private-MAC: 312221dc90660859fe68df300767f8f779046815

Debug.WriteLine("Success!")