Last active
May 30, 2017 17:10
-
-
Save lizconlan/d89cd1c667175e56e1e0f8965ee67854 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
def decrypt_session_cookie(cookie, key) | |
cookie = CGI::unescape(cookie) | |
# Default values for Rails 4 apps | |
key_iter_num = 1000 | |
salt = "encrypted cookie" | |
signed_salt = "signed encrypted cookie" | |
key_generator = ActiveSupport::KeyGenerator.new(key, iterations: key_iter_num) | |
secret = key_generator.generate_key(salt) | |
# secret = key_generator.generate_key(salt)[0, 32] | |
sign_secret = key_generator.generate_key(signed_salt) | |
# encryptor = ActiveSupport::MessageEncryptor.new(secret, sign_secret, serializer: ActiveSupport::MessageEncryptor::NullSerializer)) | |
encryptor = ActiveSupport::MessageEncryptor.new(secret, sign_secret, serializer: JSON) | |
puts encryptor.decrypt_and_verify(cookie) | |
end |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Best run under
bundle exec rails console
To call with actual data:
General example:
Based on: