From 4f51433831a64605f14e14a8250fa6c166161af2 Mon Sep 17 00:00:00 2001
From: Paul Kehrer <paul.l.kehrer@gmail.com>
Date: Tue, 10 Nov 2015 23:41:28 -0600
Subject: update docs for MessageEncryptor#new to recommend a KDF [ci skip]

---
 activesupport/lib/active_support/message_encryptor.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'activesupport/lib/active_support')

diff --git a/activesupport/lib/active_support/message_encryptor.rb b/activesupport/lib/active_support/message_encryptor.rb
index c82a13511e..2dde01c844 100644
--- a/activesupport/lib/active_support/message_encryptor.rb
+++ b/activesupport/lib/active_support/message_encryptor.rb
@@ -34,8 +34,8 @@ module ActiveSupport
     # Initialize a new MessageEncryptor. +secret+ must be at least as long as
     # the cipher key size. For the default 'aes-256-cbc' cipher, this is 256
     # bits. If you are using a user-entered secret, you can generate a suitable
-    # key with <tt>OpenSSL::Digest::SHA256.new(user_secret).digest</tt> or
-    # similar.
+    # key by using <tt>ActiveSupport::KeyGenerator</tt> or a similar key
+    # derivation function.
     #
     # Options:
     # * <tt>:cipher</tt>     - Cipher to use. Can be any cipher returned by
-- 
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