Category: U-Prove

U-Prove Specifications Licensed and Sample Code Released

On March 2, 2010

In Claims, Cryptography, Documentation, Information Cards, Interoperability, Privacy, Software, Specifications, U-Prove, Windows CardSpace

U-Prove logo This morning at the RSA conference, Scott Charney announced that Microsoft has licensed the U-Prove technology under the Open Specification Promise and released sample implementations in C# and Java under the BSD license. Implementers will be interested in two specifications: the “U-Prove Cryptographic Specification V1.0”, which documents U-Prove’s cryptographic operations, and “U-Prove Technology Integration into the Identity Metasystem V1.0”, which documents how to use U-Prove tokens with WS-Trust. These specifications are intended to enable interoperable implementations.

The U-Prove technologies enable two key properties: minimal disclosure and unlinkability. For more about U-Prove and today’s Community Technology Preview (CTP) release, see the Microsoft U-Prove site, the post announcing the release, and Vittorio’s post (with links to videos).

Welcoming Credentica’s People and Privacy Technology to Microsoft

By Mike Jones

On March 6, 2008

In Claims, Cryptography, People, Privacy, U-Prove, Windows CardSpace

I’m writing today to publicly welcome Stefan Brands, Christian Paquin, and Greg Thompson, of Credentica to Microsoft’s Identity and Access Group. I’m looking forward to working with them and to us adding their fantastic minimal disclosure technology to our identity products. Like Kim, I’m excited!

I urge people to check out Stefan’s announcement, Kim’s detailed write-up about the significance of this technology (I love the phrase “Need-to-Know Internet”), and Brendon Lynch’s post on Microsoft’s Data Privacy blog.

Welcome to Microsoft!