Zimmermann (born 1954) is an American computer scientist and cryptographer.
degree in computer science from Florida Atlantic University in Boca Raton, Florida in 1978.
In the 1980s, Zimmermann worked in Boulder, Colorado as a software engineer on the Nuclear Weapons Freeze Campaign as a military policy analyst. ==PGP== In 1991, he wrote the popular Pretty Good Privacy (PGP) program, and made it available (together with its source code) through public FTP for download, the first widely available program implementing public-key cryptography.
In the 1980s, Zimmermann worked in Boulder, Colorado as a software engineer on the Nuclear Weapons Freeze Campaign as a military policy analyst. ==PGP== In 1991, he wrote the popular Pretty Good Privacy (PGP) program, and made it available (together with its source code) through public FTP for download, the first widely available program implementing public-key cryptography.
The investigation lasted three years, but was finally dropped without filing charges after MIT Press published the source code of PGP. In 1995, Zimmermann published the book PGP Source Code and Internals as a way to bypass limitations on exporting digital code.
export restrictions as a result of the international spread of PGP's use. After the government dropped its case without indictment in early 1996, Zimmermann founded PGP Inc.
That company was acquired by Network Associates (NAI) in December 1997, and Zimmermann stayed on for three years as a Senior Fellow.
NAI decided to drop the product line and in 2002, PGP was acquired from NAI by a new company called PGP Corporation.
Zimmermann served as a special advisor and consultant to that firm until Symantec acquired PGP Corporation in 2010.
He was a principal designer of the cryptographic key agreement protocol (the "association model") for the Wireless USB standard. == Silent Circle == Along with Mike Janke and Jon Callas, in 2012 he co-founded Silent Circle, a secure hardware and subscription based software security company. === Dark Mail Alliance === In October 2013, Zimmermann, along with other key employees from Silent Circle, teamed up with Lavabit founder Ladar Levison to create the Dark Mail Alliance.
He was a principal designer of the cryptographic key agreement protocol (the "association model") for the Wireless USB standard. == Silent Circle == Along with Mike Janke and Jon Callas, in 2012 he co-founded Silent Circle, a secure hardware and subscription based software security company. === Dark Mail Alliance === In October 2013, Zimmermann, along with other key employees from Silent Circle, teamed up with Lavabit founder Ladar Levison to create the Dark Mail Alliance.
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