Module: Encryptor::Private

Included in:
User
Defined in:
lib/encryptor.rb

Instance Method Summary collapse

Instance Method Details

#aes_decrypt(ciphertext, key) ⇒ Object 


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# File 'lib/encryptor.rb', line 50

def aes_decrypt(ciphertext, key)
  cipher = OpenSSL::Cipher.new('AES-256-CBC')
  cipher.decrypt
  cipher.key = Base64.decode64 key['key']
  cipher.iv  = Base64.decode64 key['iv']
  txt = ''
  txt << cipher.update(Base64.decode64 ciphertext)
  txt << cipher.final
  txt
end

#decrypt(cipher_json) ⇒ Object 


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# File 'lib/encryptor.rb', line 39

def decrypt cipher_json
  json = JSON.parse(Base64.decode64 cipher_json)
  aes_key = get_aes_key json['aes_key']
  aes_decrypt(json['ciphertext'], aes_key)
end

#get_aes_key(encrypted_key) ⇒ Object 


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# File 'lib/encryptor.rb', line 45

def get_aes_key encrypted_key
  clear_key = encryption_key.private_decrypt( Base64.decode64 encrypted_key )
  JSON::parse(clear_key)
end