A system for managing sensitive data is described. The system prevents a system administrator from accessing sensitive data by storing data and identifier information on different computer systems. Each query is encrypted using two codes, the first code readable only by an identifier database and a second...http://www.google.es/patents/US6148342?utm_source=gb-gplus-sharePatente US6148342 - Secure database management system for confidential records using separately encrypted identifier and access request
Secure database management system for confidential records using separately ...