Methods and systems for storing secret information in a digital vault include obtaining from a user answers to a number of different questions, and identifying which subsets or combinations of the questions for which correct answers later provided by an entity will enable that entity to gain access to...http://www.google.es/patents/US20070124321?utm_source=gb-gplus-sharePatente US20070124321 - Storing digital secrets in a vault
Número de solicitud: 11/265,539 Número de publicación: US 2007/0124321 A1 Fecha de presentación: 2 Nov 2005 Patente emitida: US7739733 ( Fecha de emisión 15 Jun 2010)
