(Ruby) 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 Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# 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.

key = Chilkat::CkSshKey.new()

success = key.GenerateEd25519Key()
if (success != true)
    print key.lastErrorText() + "\n";
    exit
end

# We can optionally set a comment to be included in the exported key.
key.put_Comment("This is my new ed25519 key.")

# Export the ed25519 private key to unencrypted PuTTY format:
exportEncrypted = false
exportedKey = 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.put_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

print "Success!" + "\n";