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Jan arbeitet seit 2020 an Projekten des Support–Teams und der Internen IT, nachdem er bereits sein Praktikum im Rahmen seines Informatikstudiums bei credativ absolvierte und auch seine Bachelorarbeit zum Thema Einmalpasswörter, Zwei–Faktor–Authentisierung und OpenVPN bei credativ schrieb. Bereits zu Schulzeiten interessierte er sich für Freie Software, Netzwerke und Telekommunikation und richtete zusammen mit Mitschülern ein Internetcafé ein, auf dessen Server und Clients Debian GNU/Linux seinen Dienst verrichtete.
10 December 2020
In the article Two-Factor Authentication for OpenSSH and OpenVPN, a simple way was presented to increase the security of PAM-enabled services through two-factor authentication. With the TOTP method used, a time-limited one-time password is generated based on a shared secret. Depending on the method and encoding, the shared secret consists of 32 or even 40 […]
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