module Acme::Client::JWK

def self.from_private_key(private_key)

Returns a JWK::Base subclass instance.

private_key - An OpenSSL::PKey::EC or OpenSSL::PKey::RSA instance.

Make a JWK from a private key. 
def self.from_private_key(private_key)
  case private_key
  when OpenSSL::PKey::RSA
    Acme::Client::JWK::RSA.new(private_key)
  when OpenSSL::PKey::EC
    Acme::Client::JWK::ECDSA.new(private_key)
  else
    raise ArgumentError, 'private_key must be EC or RSA'
  end
end