From 862ec8a43c13b510c15ef61e57b99944965abc39 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Bo=C3=9Flet?= <Martin.Bosslet@gmail.com>
Date: Sun, 20 Jan 2013 05:15:20 +0100
Subject: [PATCH] Reset digest instance before generating derived bytes

---
 lib/krypt/pkcs5/pbkdf2.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/krypt/pkcs5/pbkdf2.rb b/lib/krypt/pkcs5/pbkdf2.rb
index fc0efbe..354268f 100644
--- a/lib/krypt/pkcs5/pbkdf2.rb
+++ b/lib/krypt/pkcs5/pbkdf2.rb
@@ -12,6 +12,7 @@ def initialize(digest)
     def generate(pwd, salt, iter, outlen)
       raise "outlen too large" if outlen > MAX_FACTOR * @block_size
 
+      @digest.reset
       num_blocks = (outlen.to_f / @block_size).ceil
       # enforces ASCII-8BIT
       String.new.tap do |result|