Abstract: A method and apparatus provide centralized encryption key management for sharing data across diverse entities. In particular, the present invention relates to a universal and regulatory compliant system and method for sharing personal data records across diverse entities while maintaining unique identifiers at each entity for protecting the identity of any particular person. The present invention enables multiple organizations to be able to share their respective disparate data in a manner in which the disparate personal data records can be aggregated and manipulated by a single entity without putting the personal data records at risk.