Callas at Kiwicon in Wellington, New Zealand (2012)
Known for
Internet Security
Jon Callas is an American computer security expert,[1] software engineer, user experience designer, and technologist who is the co-founder and former CTO of the global encrypted communications service Silent Circle.[2] He has held major positions at Digital Equipment Corporation, Apple, PGP, and Entrust, and is considered "one of the most respected and well-known names in the mobile security industry."[3] Callas is credited with creating several Internet Engineering Task Force (IETF) standards, including OpenPGP, DKIM,[4] and ZRTP, which he wrote.[3] Prior to his work at Entrust, he was Chief Technical Officer and co-founder of PGP Corporation and the former Chief Technical Officer of Entrust.
On his website, Callas describes himself as "an entrepreneur and innovator in information and business security, including cryptography, operating system security, public key infrastructure, and intellectual property rights," as well as "an innovator in human-computer interactions, collaboration and social virtual reality."[5]
He has also worked for Bruce Schneier's Counterpane Internet Security, was one of the primary authors of the DKIM method, and was Chief Scientist of the original PGP, Inc. founded by Phil Zimmermann. Callas is a member of the Infosec think tank The Shmoo Group.
^Interview with Jon Callas, CTO of PGP Corporation. Help Net Security, 2011. Retrieved 17 July 2011.
^ abTrutta, Filip (Jul 26, 2011). "Former Apple Security Expert Jon Callas Joins Entrust". softpedia.
^Mimoso, Michael (May 23, 2016). "Apple has hired cryptography pioneer Jon Callas for a third time. Callas, who previously at Apple helped design and implement encryption systems for Macs, was most recently at Silent Circle". Threatpost.
JonCallas is an American computer security expert, software engineer, user experience designer, and technologist who is the co-founder and former CTO...
cryptographically secured mobile phone; founder of the GNU Radio project JonCallas: technical lead on OpenPGP specification; co-founder and Chief Technical...
Jon Phipps McCalla (born 1947) is a senior United States district judge of the United States District Court for the Western District of Tennessee. Born...
Wilcox-O'Hearn, Colin Plumb, JonCallas and Alan Johnston and was submitted to the Internet Engineering Task Force (IETF) by Zimmermann, Callas and Johnston on March...
to PGP, the list of words was further refined, with contributions by JonCallas. More recently, it has been used in Zfone and the ZRTP protocol, the successor...
chaired by Barry Leiba and Stephen Farrell, with Eric Allman of sendmail, JonCallas of PGP Corporation, Mark Delany and Miles Libbey of Yahoo!, and Jim Fenton...
"association model") for the Wireless USB standard. Along with Mike Janke and JonCallas, in 2012 he co-founded Silent Circle, a secure hardware and subscription...
and by Broadcom in 2019. PGP Corporation was co-founded in June 2002 by JonCallas and Phil Dunkelberger (who became CEO), based in Menlo Park, California...
The Dark Mail Alliance team originally consisted of Phil Zimmermann, JonCallas, Mike Janke, and Ladar Levison. As of August 2023[update], the only original...
Ferguson, Stefan Lucks, Doug Whiting, Mihir Bellare, Tadayoshi Kohno, JonCallas, and Jesse Walker. Threefish works on words of 64 bits (unsigned Little...
Secret Jason Calacanis Mahalo.com, Weblogs, Inc. Dalton Caldwell Snocap JonCallas PGP Corporation, Silent Circle Garrett Camp Uber, StumbleUpon Colin Campbell...
secure connection between its clients. Phil Zimmermann, Alan Johnston, and JonCallas have proposed a new VoIP encryption protocol called ZRTP. They have an...
as Callas was rooted in 19th-century bel canto. Callas was a dramatic soprano, whereas Tebaldi considered herself essentially a lyric soprano. Callas and...
Ardoin, John (1991). The Callas Legacy. Old Tappen, New Jersey: Scribner and Sons. ISBN 0-684-19306-X. L'Invité Du Dimanche, The Callas Conversations, Vol....
and Diff'rent Strokes (1984–1985). She returned to Broadway to play Maria Callas in the play Master Class in 1997 and to play Mrs. Meers in the musical Thoroughly...
Don Carlos, Andrea Chenier, Herod in Salome, Giasone in Medea (with Maria Callas in the title role), Pollione in Norma and rarely heard parts such as Cellini...
traviata at La Scala in 1955 with Maria Callas and an equally famous Anna Bolena (also at La Scala) in 1957 with Callas. A significant 1958 Royal Opera House...
Lamar at Paramount". The Hollywood Reporter. Retrieved April 11, 2024. Callas, Brad (March 9, 2022). "Kendrick Lamar and Dave Free's pgLang Announces...
officially signs with Motown Records". Revolt. Retrieved March 12, 2023. Callas, Brad (October 24, 2022). "YoungBoy Never Broke Has Signed a Deal With Motown"...
Scala with Maria Callas in 1955 (Andrea Chénier, Norma) and starred with Callas in "Norma" at the Met in 1956, amongst other Callas pairings. Del Monaco...
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