Hi
I am new to both ruby and rho mobile and currently i am trying to encrypt a key using HMAC-SHA2.

But when i try to use hmac = HMAC::SHA256.new(key) i get the error as given below in the log

RhoRuby| require_compiled: error: can not find digest/sha2.so

APP| App error: library not found for class Digest::SHA256 -- digest/sha2.so

Here is my Complete Code.

Controller.rb

require 'digest'
require 'digest/sha2'
require 'hmac-sha2'

def test_hmac
      key = '12344444'
      signature = 'abcdef'
      Alert.show_popup(key)
      puts "key :  #{key}"
      hmac = HMAC::SHA256.new(key)
      hmac.update(signature)
  
      puts "hmac: :  #{hmac}"
      puts Rho::RhoSupport.url_encode(Base64.encode64("#{hmac.digest}\n"))
end
My Build.yml :
android:
  manifest_template: "AndroidManifest.erb"
#android_title: 0
  version: "2.3.1"
  extensions:
    - screenorientation
    - coreapi
    - hmac
    - digest
    - digest-sha2
  capabilities:
    - hardware_acceleration
capabilities:
  - gps
  - camera
  - network_state
  - Network
  - hardware_acceleration

The above seems to work fine on Rho Simulator but does not work on android device.What can be the problem ??
My current version of Rhodes is 4.1.1 and of Ruby is 1.9.1

Please note that i need to make it work for both android and iOS devices

Any help is appreciated

Thanks
Siddhant