Stefan Brands
Stefan Brands is the inventor of an improved Digital credential based on secret-key certificates. Brands' credentials, which are the topic of his Ph.D. Thesis [1] improve on David Chaum's initial RSA Blind signature based system and work in both the discrete log and strong RSA assumption settings. Digital credentials have applications in privacy-enhancing technology and electronic cash.
Stefan was the founder of Credentica, [2] which developed his credentials under the brand name U-Prove and in 2008 sold[3] the technology[4] to Microsoft.[5][6][7][8] Prior to Credentica, Stefan licensed earlier versions of the technology to DigiCash[9][10] and Zero-Knowledge Systems.[11][12][13]
He holds a Ph.D. in cryptography from Eindhoven University of Technology and a M.Sc. in mathematics from University of Utrecht.
References
- ^ Rethinking Public Key Infrastructures and Digital Certificates; Building in Privacy - MIT Press - 2000
- ^ Credentica web site. Credentica.com. Retrieved on 29 November 2011.
- ^ Wired News: Microsoft Promises Not to Hoard Crypto-Based ID Protection. Wired.com. Retrieved on 29 November 2011.
- ^ McCullagh, Declan. (16 December 2002) CNET News: Perspective: Tech's answer to Big Brother. News.com.com. Retrieved on 29 November 2011.
- ^ Heath, William. (4 April 2008) Microsoft lines up with the good guys on identity tech. The Register. Retrieved on 29 November 2011.
- ^ Microsoft Press Release: Progress Toward a Safer, More Trusted Internet. Microsoft.com (2 March 2010). Retrieved on 29 November 2011.
- ^ Bright, Peter. (3 March 2010) Microsoft open-sources clever U-Prove identity framework. Ars Technica. Retrieved on 29 November 2011.
- ^ Microsoft Progress on End-to-End Trust. Microsoft.com. Retrieved on 29 November 2011.
- ^ How DigiCash Blew Everything, NEXT magazine, January 1999
- ^ “Minting” electronic cash by David Chaum and Stefan Brands, in: IEEE Spectrum special issue on electronic money, February 1997
- ^ Zero-Knowledge Systems: Press Release. Replay.waybackmachine.org (7 April 2000). Retrieved on 29 November 2011.
- ^ Wired News: A New ID-Less ID System. Wired.com. Retrieved on 29 November 2011.
- ^ Wall Street Journal: Zero-Knowledge Is Hoping to Cash In On Move to Anonymous Funds for Web. Cryptome.org. Retrieved on 29 November 2011.