Jon Callas

IRL Name: 
Jon Callas

Jon Callas is an American computer security expert who is the former Chief Technical Officer of Entrust, co-founder of Silent Circle and PGP Corporation. He is an author of cryptographic standards including OpenPGP and DKIM, and a frequent author and commentator. He has also worked for a number of companies including Counterpane Internet Security, Apple, DEC, and others.


He the principal author of The IETF OpenPGP standard, which is presently RFC2440 since mid '97.

He has also worked for Bruce Schneier's Counterpane Internet Security, and was Chief Scientist of the original PGP, Inc. founded by Phil Zimmermann.