From d3f1500bfaaf0c9ef4ddcd911757bf01b4e36344 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Paul=20B=C3=BCtow?= <pbuetow@mimecast.com>
Date: Mon, 28 May 2018 10:32:12 +0100
Subject: can set iv

---
 geheim.rb | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/geheim.rb b/geheim.rb
index 40eecbd..ddb5ac5 100644
--- a/geheim.rb
+++ b/geheim.rb
@@ -70,8 +70,12 @@ module Encryption
     super()
     if @@key.nil?
       @@key = File.read($key_file)
-      print "IV: "
-      input = $stdin.gets.chomp
+      if ENV['IV']
+        input = ENV['IV']
+      else
+        print "IV: "
+        input = $stdin.gets.chomp
+      end
       iv = input * 2 + "Hello world" + input * 2
       @@iv = iv[0..15]
     end
-- 
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