Jon Callas

Jon Callas
Callas at Kiwicon in Wellington, New Zealand (2012)
Known forInternet 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[5] 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."[6]

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.

  1. ^ Interview with Jon Callas, CTO of PGP Corporation. Help Net Security, 2011. Retrieved 17 July 2011.
  2. ^ http://www.linkedin.com/in/joncallas [self-published source]
  3. ^ a b Trutta, Filip (Jul 26, 2011). "Former Apple Security Expert Jon Callas Joins Entrust". softpedia.
  4. ^ 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.
  5. ^ Whittaker, Zack (February 4, 2016). "PGP co-founder: Ad companies are the biggest privacy problem today, not governments". ZDNet. Retrieved June 23, 2024.
  6. ^ "Jon Callas" (PDF). Merry Meet.