A method and a system for extending distributed logon services to an off-line computing device includes encrypting, on the off-line computing device, a one-time password, a nonce, and a unique identifier to generate an authorization request message. In one system, a liquid including polysaccharide and a liquid including a cross linking agent are mixed in a cannula to form a cross linked polysaccharide fiber in the cannula. The LED module contains a shell or outer surface having a matching form factor as the housing for making physical contact with the housing over a sufficient surface area to provide good thermal contact. Thus, the charging of the capacitor can be performed even during the control for chargingdischarging the piezoelectric actuator.