Introduce a new ActiveSupport::SecureCompareRotator class:

- This class is used to rotate a previously determined value to a new
  one before making the comparions.
  We use this at Shopify to rotate Basic Auth crendials but I can
  imagine other use cases.

  The implementation uses the same `Messages::Rotator` module than
  the MessageEncryptor/MessageVerifier class so it works exactly the
  same way.

  You can use it as follow:

  ```ruby
  rotator = ActiveSupport::SecureCompareRotator.new('new_production_value')
  rotator.rotate('previous_production_value')
  rotator.secure_compare!('previous_production_value')
  ```

0 files changed, 0 insertions, 0 deletions