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538
documents/macos/schluessel_erstellen/schluessel_erstellen.lyx
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#LyX 1.4.3 created this file. For more info see http://www.lyx.org/
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\lyxformat 245
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\begin_layout Title
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Ein eigenes Schlüsselpaar erstellen
|
||||
\end_layout
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||||
|
||||
\begin_layout Author
|
||||
E-Mails verschlüsseln
|
||||
\end_layout
|
||||
|
||||
\begin_layout Standard
|
||||
Die folgende Anleitung beschreibt die Erstellung eines eigenen Schlüsselpaars.
|
||||
Dein Schlüsselpaar gliedert sich in zwei Teile: einen privaten Schlüssel,
|
||||
den du tunlichst hütest wie deinen Augapfel und den öffentlichen Schlüssel,
|
||||
der für deine KorrespondenzpartnerInnen bestimmt ist.
|
||||
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|
||||
|
||||
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|
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Mit dem öffentlichen Schlüssel deines Adressaten verschlüsselst du eine
|
||||
E-Mail, welche nur der Empfänger/die Empfängerin mit Hilfe seines/ihres
|
||||
privaten Schlüssels wieder entschlüsseln kann.
|
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|
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|
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|
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Um eine verschlüsselte E-Mail versenden zu können, musst du erstmal den
|
||||
öffentlichen Schlüssel deiner Zielperson besitzen.
|
||||
Diese wiederum benötigt deinen öffentlichen Schlüssel, um dir verschlüsselt
|
||||
antworten zu können.
|
||||
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|
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|
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Ausführlichere Infos zur Funktionsweise der Verschlüsselung findest du auf
|
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der Seite
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status collapsed
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htmladdnormallink{Asymmetrische Verschlüsselung}{../asymmetrie/asymmetrie.html}
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.
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|
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Ein Schlüsselpaar erstellen
|
||||
\end_layout
|
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|
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\begin_layout Standard
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Öffne Thunderbird und starte die Schlüsselverwaltung über das Menü
|
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end{rawhtml}
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\end_layout
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\end_inset
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OpenPGP -> Schlüssel verwalten...
|
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:
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|
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\begin_inset Graphics
|
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filename bilder/thunderbird_menue_schluessel_verwalten.png
|
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\end_inset
|
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|
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|
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\end_layout
|
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\begin_layout Caption
|
||||
Die Schlüsselverwaltung starten
|
||||
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|
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|
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|
||||
\end_layout
|
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|
||||
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|
||||
Beim ersten Start erscheint der OpenPGP-Assistent.
|
||||
Da dieser ein paar wichtige Einstellungen nicht anbietet, muss er an dieser
|
||||
Stelle abgebrochen werden.
|
||||
Danach öffnet sich automatisch die Schlüsselverwaltung.
|
||||
Hier kannst du nun dein neues Schlüsselpaar erstellen.
|
||||
Klicke dazu im Menü der Schlüsselverwaltung auf
|
||||
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|
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|
||||
\end_inset
|
||||
|
||||
Erzeugen -> Neues Schlüsselpaar...
|
||||
\begin_inset ERT
|
||||
status collapsed
|
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|
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|
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|
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|
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\begin_layout Standard
|
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end{rawhtml}
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\end_layout
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\end_inset
|
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|
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:
|
||||
\end_layout
|
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|
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|
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\begin_inset Float figure
|
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wide false
|
||||
sideways false
|
||||
status open
|
||||
|
||||
\begin_layout Standard
|
||||
\align center
|
||||
\begin_inset Graphics
|
||||
filename bilder/em-schluessel_erzeugen01.png
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Caption
|
||||
Anlegen eines neuen Schlüsselpaars
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Standard
|
||||
Zur Erstellung benötigst du folgende Informationen:
|
||||
\end_layout
|
||||
|
||||
\begin_layout Standard
|
||||
\begin_inset Float figure
|
||||
wide false
|
||||
sideways false
|
||||
status open
|
||||
|
||||
\begin_layout Standard
|
||||
\begin_inset Graphics
|
||||
filename bilder/em-schluessel_erzeugen02.png
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Caption
|
||||
Hier werden alle Informationen zum Schlüsselpaar gesammelt
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Enumerate
|
||||
Benutzer-ID: die E-Mail-Adresse mit der du künftig E-Mails ver- und entschlüssel
|
||||
n willst
|
||||
\end_layout
|
||||
|
||||
\begin_layout Enumerate
|
||||
Passphrase: so wird ein Passwortsatz bezeichnet
|
||||
\end_layout
|
||||
|
||||
\begin_deeper
|
||||
\begin_layout Itemize
|
||||
Die Passphrase sichert, dass wirklich nur du deine E-Mails ver- und entschlüssel
|
||||
n kannst.
|
||||
Sie besteht idealerweise aus mehreren Groß- und Kleinbuchstaben, Sonderzeichen
|
||||
und Zahlen (insgesamt mindestens fünfzehn Zeichen, besser wären zwanzig
|
||||
oder mehr).
|
||||
Dadurch kann sie kaum von Fremden erraten werden.
|
||||
Wichtig ist natürlich, dass du sie nicht vergisst.
|
||||
Um dies zu erleichtern gibt es viele Tricks, eine leicht merkbare, aber
|
||||
sichere Passphrase zu finden:
|
||||
\end_layout
|
||||
|
||||
\begin_deeper
|
||||
\begin_layout Itemize
|
||||
denke an ein Lied, das du gut kennst und nimm die Anfangsbuchstaben (oder
|
||||
die zweiten, ...
|
||||
usw.) jedes Wortes, dazwischen verteilst du Sonderzeichen und Zahlen
|
||||
\end_layout
|
||||
|
||||
\begin_layout Itemize
|
||||
denke dir einen sinnlosen Satz aus und baue ein paar Rechtschreibfehler
|
||||
und Sonderzeichen ein, z.B: Dat Koerriwurst schmoeckt n8ch #imt &nd #ucker
|
||||
\begin_inset Foot
|
||||
status collapsed
|
||||
|
||||
\begin_layout Standard
|
||||
Genau dieses Beispiel solltest du natürlich nicht verwenden.
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\end_deeper
|
||||
\end_deeper
|
||||
\begin_layout Standard
|
||||
Nachdem du alle Angaben überprüft hast, klicke auf das Register
|
||||
\emph on
|
||||
Erweitert
|
||||
\emph default
|
||||
(1) und erhöhe die
|
||||
\emph on
|
||||
Schlüsselstärke
|
||||
\emph default
|
||||
auf 4096 Bits (2) - somit bleiben deine E-Mails ein paar Jahrhunderte länger
|
||||
geheim :)
|
||||
\end_layout
|
||||
|
||||
\begin_layout Standard
|
||||
\begin_inset Float figure
|
||||
wide false
|
||||
sideways false
|
||||
status open
|
||||
|
||||
\begin_layout Standard
|
||||
\align center
|
||||
\begin_inset Graphics
|
||||
filename bilder/em-schluessel_erzeugen03.png
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Caption
|
||||
Erweiterte Einstellungen
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Standard
|
||||
Durch einen Klick auf die Schaltfläche
|
||||
\emph on
|
||||
Schlüsselpaar erzeugen
|
||||
\emph default
|
||||
beginnt die automatische Erzeugung deines Schlüsselpaares.
|
||||
Nun hast du einige Minuten Pause.
|
||||
Die kannst du z.B.
|
||||
mit Browsen im Internet verbringen.
|
||||
Nach der Erzeugung des Schlüsselpaares wirst du gefragt, ob du ein Wiederrufsze
|
||||
rtifikat erzeugen willst.
|
||||
Es ist empfehlenswert dies zu tun:
|
||||
\end_layout
|
||||
|
||||
\begin_layout Standard
|
||||
\begin_inset Float figure
|
||||
wide false
|
||||
sideways false
|
||||
status open
|
||||
|
||||
\begin_layout Standard
|
||||
\align center
|
||||
\begin_inset Graphics
|
||||
filename bilder/em-schluessel_erzeugen06.png
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Caption
|
||||
Bestätige die Erzeugung eines Widerrufszertifikats
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Standard
|
||||
Nachdem du das Widerrufszertifikat gespeichert hast, ist die Schlüsselerzeugung
|
||||
vollständig abgeschlossen.
|
||||
Dein soeben erzeugtes Schlüsselpaar taucht nun auch in der Schlüsselverwaltung
|
||||
auf:
|
||||
\end_layout
|
||||
|
||||
\begin_layout Standard
|
||||
\begin_inset Float figure
|
||||
wide false
|
||||
sideways false
|
||||
status open
|
||||
|
||||
\begin_layout Standard
|
||||
\align center
|
||||
\begin_inset Graphics
|
||||
filename bilder/em_schluesselverwaltung03.png
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Caption
|
||||
Der neue Schlüssel erscheint in der Schlüsselverwaltung
|
||||
\end_layout
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\begin_layout Standard
|
||||
\begin_inset Include \input{progress/schluesselbund.inc}
|
||||
preview false
|
||||
|
||||
\end_inset
|
||||
|
||||
|
||||
\end_layout
|
||||
|
||||
\end_body
|
||||
\end_document
|