class ActiveSupport::Digest

:nodoc:

def hash_digest_class 

def hash_digest_class
  @hash_digest_class ||= OpenSSL::Digest::MD5
end

def hash_digest_class=(klass) 

def hash_digest_class=(klass)
  raise ArgumentError, "#{klass} is expected to implement hexdigest class method" unless klass.respond_to?(:hexdigest)
  @hash_digest_class = klass
end

def hexdigest(arg) 

def hexdigest(arg)
  hash_digest_class.hexdigest(arg)[0...32]
end