The U-Prove™ technology is the culmination of over two decades of academic research in modern cryptography on how to reconcile seemingly conflicting requirements in cross-domain identity and access management. The cryptographic details of the technology are described in a book authored by Dr. Brands that has been published by The MIT Press; with the permission of the publisher we have made it available for free download from this site. For a summary of the privacy and multi-party security features of the U-Prove technology, see unique features. Watch the four-minute introductory video for a high-level overview of the technology.