BEGIN:VCALENDAR PRODID;X-RICAL-TZSOURCE=TZINFO:-//Calagator//EN CALSCALE:GREGORIAN X-WR-CALNAME:Calagator METHOD:PUBLISH VERSION:2.0 BEGIN:VTIMEZONE TZID;X-RICAL-TZSOURCE=TZINFO:America/Los_Angeles BEGIN:DAYLIGHT DTSTART:20150308T020000 RDATE:20150308T020000 TZOFFSETFROM:-0800 TZOFFSETTO:-0700 TZNAME:PDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT CREATED;VALUE=DATE-TIME:20150421T212719Z DTEND;TZID=America/Los_Angeles;VALUE=DATE-TIME:20150504T203000 DTSTART;TZID=America/Los_Angeles;VALUE=DATE-TIME:20150504T190000 DTSTAMP;VALUE=DATE-TIME:20150421T212719Z LAST-MODIFIED;VALUE=DATE-TIME:20150421T212719Z UID:http://calagator.org/events/1250468299 DESCRIPTION:**The History of Cryptography at Portland Underground Grad Sc hool** \;\n \;\nWith the rise of privacy concerns in digital space s\, encryption technology has become an increasingly important modern t opic. But the practice of secure communications\, and the practice of br eaking it\, have been around for centuries. Come examine the origins of cryptography\, from Caesar ciphers to modern day techniques and even lea rn some basic crypto methods that can be done by hand. \;\n \;\n*T his is a four week class and requires reservations. See the website!* 3\;\n\n\nTags: cryptography\, crypto\, privacy\, history\n\nImported fro m: http://calagator.org/events/1250468299 URL:http://www.pugspdx.com/classes SUMMARY:The History of Cryptography LOCATION:Taborspace: 5441 SE Belmont St\, Portland\, Oregon 97215 US SEQUENCE:1 END:VEVENT END:VCALENDAR