Editing Phil Zimmermann (section)

===Arms Export Control Act investigation===
After a report from [[RSA Security]], who were in a licensing dispute with regard to the use of the RSA algorithm in PGP, the [[United States Customs Service]] started a criminal investigation of Zimmermann, for allegedly violating the [[Arms Export Control Act]].<ref name="Kafka territory">{{cite magazine|last=Sussman|first=Vic|author-link=Vic Sussman|title=Lost in Kafka Territory|url=https://www.usnews.com/usnews/news/articles/950403/archive_010975.htm|magazine=U.S. News & World Report|access-date=27 May 2012|date=March 26, 1995|url-status=dead|archive-url=https://web.archive.org/web/20130616165334/http://www.usnews.com/usnews/news/articles/950403/archive_010975.htm|archive-date=16 June 2013}}</ref> The United States Government had long regarded cryptographic software as a munition, and thus subject to [[export of cryptography|arms trafficking export controls]]. At that time, PGP was considered to be impermissible ("high-strength") for export from the United States. The maximum strength allowed for legal export has since been raised and now allows PGP to be exported. The investigation lasted three years, but was finally dropped without filing charges after MIT Press published the source code of PGP.<ref>{{Cite book|isbn = 0262240394|title = PGP Source Code and Internals|last1 = Zimmermann|first1 = Philip R.|year = 1995| publisher=MIT Press }}</ref> 

In 1995, Zimmermann published the book ''PGP Source Code and Internals'' as a way to bypass limitations on exporting digital code. Zimmermann's introduction says the book contains "all of the C source code to a software package called PGP" and that the unusual publication in book form of the complete source code for a computer program was a direct response to the U.S. government's criminal investigation of Zimmermann for violations of U.S. export restrictions as a result of the international spread of PGP's use.<ref name=philbook>{{cite web |url=https://philzimmermann.com/EN/essays/BookPreface.html |title=Author's preface to the book: "PGP Source Code and Internals" |access-date=2020-05-26}}</ref>

After the government dropped its case without indictment in early 1996, Zimmermann founded PGP Inc. and released an updated version of PGP and some additional related products. 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 [[NortonLifeLock|Symantec]] acquired PGP Corporation in 2010.<ref name="philbio">{{cite web |title=Phil Zimmermann's Homepage: Background |url=http://www.philzimmermann.com/EN/background/index.html |access-date=2012-01-12}}</ref> Zimmermann is also a fellow at the Stanford Law School's [[Stanford Center for Internet and Society|Center for Internet and Society]]. He was a principal designer of the cryptographic key agreement protocol (the "association model") for the [[Wireless USB]] standard.