How to convert a string to a byte array in ruby on rails
ruby-on-rails
Solution
Ruby has the `bytes` method and you can convert that to an array with `to_a` http://www.ruby-doc.org/core-1.9.3/ARGF.html#method-i-bytes
string = 'some string'
byte_array = string.bytes.to_a
# [115, 111, 109, 101, 32, 115, 116, 114, 105, 110, 103]
Problem
I want to convert a string to a byte array before I can sign it with a private key but I have not done it before. My code is as below could anybody give me a clue on how I can do it. Thank you. ``` require 'openssl' require 'base64' require 'digest/sha1' @date = Date.today.strftime("%m/%d/%Y") text_to_sign = "#{@order.phone_no}" + "#{@order.name}" + "#{@order.pay_type}" + "#{@order.pay_type}" + "1" + "MABIRA" + "81W30DI846" + "#{@date}" + "PULL" + "1" + "#{@cart.total_price}" + "#{@order.phone_no}" + "" password = 'secret' #converting the string to byte array byte[] buff => new byte[1024] text = buff.text_to_sign private_key = OpenSSL::PKey::RSA.new(File.read('Private.key'), password) ciphertext = private_key.private_encrypt(text) ciphertext.encoding signed_text = Base64.encode64(ciphertext).gsub("\n", '') puts signed_text signed_text ```