BEGIN:VCALENDAR PRODID;X-RICAL-TZSOURCE=TZINFO:-//com.denhaven2/NONSGML ri_cal gem//EN CALSCALE:GREGORIAN VERSION:2.0 BEGIN:VTIMEZONE TZID;X-RICAL-TZSOURCE=TZINFO:Europe/Berlin BEGIN:DAYLIGHT DTSTART:20170326T020000 RDATE:20170326T020000 TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT DTEND;TZID=Europe/Berlin;VALUE=DATE-TIME:20170617T151500 DTSTART;TZID=Europe/Berlin;VALUE=DATE-TIME:20170617T143000 DTSTAMP;VALUE=DATE-TIME:20170604T151838Z UID:85a0a5a0-a01f-4e14-ad3c-fed68ee97805@frab.ccczh.ch DESCRIPTION:This talk will introduce GNU Taler\, a new electronic payment system designed to provide a reasonable trade-off between privacy for c itizens and transparency for governments. Building on fundamental ideas from Chaum's DigiCash for anonymous payments\, GNU Taler introduces new cryptographic mechanisms to give change and refunds\, and implements a modern protocol with dramatic usability improvements for secure online p ayments.\n URL:https://www.cosin.ch/fahrplan/2017/events/14.html SUMMARY:GNU Taler ORGANIZER:cosin LOCATION:cosin - Lecture Room END:VEVENT END:VCALENDAR