Please help me rewrite this Javascript function to Elixir

Questions & Help Questions
7

@cmkarlsson
Thanks alot, your solution worked wonderfully :smile:.

To extract the public key from the certificate record was hard but I have managed to do it using trial and error hacks. (If you know a better way please advice) .

Here is my final working solution incase someone else needs help.

  def security do
    cert_text = File.read!("./lib/mpesa_elixir/keys/sandbox_cert.cer") |> String.trim()
    [pem_entry] = :public_key.pem_decode(cert_text)
    plk = :public_key.pem_entry_decode(pem_entry)
    list = Tuple.to_list(elem(plk, 1))
    der_value = List.keyfind(list, :SubjectPublicKeyInfo, 0) |> elem(2)

    plain_text = "Safaricom133!"
    
    public_key = :public_key.der_decode(:RSAPublicKey, der_value)

    ciphertext =
      :public_key.encrypt_public(plain_text, public_key, [{:rsa_pad, :rsa_pkcs1_padding}])

    :base64.encode(ciphertext)
  end

Regards.