JRuby + Apache Mina SSHD public key

jruby_mina_sshd_publickey_example.rb

require 'net/ssh'

class CustomPublickeyAuthenticator
    include PublickeyAuthenticator

    def authenticate(username, key, session)
        key = String.from_java_bytes(key.getEncoded)
        key = [OpenSSL::PKey::RSA.new(key).to_blob].pack('m0')
        # The key is now a string
        # Your public key authentication magic here
        # Return true for auth success and false for failure
    end

end