diff options
| -rw-r--r-- | activesupport/lib/active_support/message_encryptor.rb | 4 |
1 files changed, 2 insertions, 2 deletions
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 |