Upgraded Ruby to 2.4.2, fixed OpenSSL warnings, and 3 gems

lib/encryption.rb

@@ -2,19 +2,19 @@ module Encryption
 
   # Added a re-usable encryption routine, shouldn't be an issue!
   def self.encrypt_sensitive_value(val="")
-     aes = OpenSSL::Cipher::Cipher.new(cipher_type)
+     aes = OpenSSL::Cipher.new(cipher_type)
      aes.encrypt
-     aes.key = key
-     aes.iv = iv if iv != nil
+     aes.key = key[0..31]
+     aes.iv = iv[0..15] if iv != nil
      new_val = aes.update("#{val}") + aes.final
      Base64.strict_encode64(new_val).encode('utf-8')
   end
 
   def self.decrypt_sensitive_value(val="")
-     aes = OpenSSL::Cipher::Cipher.new(cipher_type)
+     aes = OpenSSL::Cipher.new(cipher_type)
      aes.decrypt
-     aes.key = key
-     aes.iv = iv if iv != nil
+     aes.key = key[0..31]
+     aes.iv = iv[0.15] if iv != nil
      decoded = Base64.strict_decode64("#{val}")
      aes.update("#{decoded}") + aes.final
   end