LastPass OTP

http://www.youtube.com/watch?v=-6lO280MJ0w&feature=mfu_in_order&playnext=1&videos=lHT4wtQzIak



in order to build in the one time passwords, wouldn't that involve LP knowing your password and username? From one of the other videos, he said that username and pass is hashed, and that is used for authentication. That is then hashed again, to encyprt the database. In order to provide the OTP, somehow the database has to be decypted without them knowing the key, which doesn't seem like the case.

http://www.youtube.com/watch?v=r9Q_anb7pwg