{"version":"1.0","type":"link","title":"Zendian problem - Newikis","description":"The Zendian problem was an exercise in communication intelligence operations (mainly traffic analysis and cryptanalysis) devised by Lambros D. Callimahos as part of an advanced course, CA-400, that Callimahos taught to National Security Agency cryptanalysts starting in the 1950s.","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}