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diff --git a/help/C/usage-mail.sgml b/help/C/usage-mail.sgml index 36ed168af9..a096bc90c7 100644 --- a/help/C/usage-mail.sgml +++ b/help/C/usage-mail.sgml @@ -1583,6 +1583,7 @@ with quoted materials and the relevant replies interspersed--> </figure> </para> </sect2> + <sect2 id="usage-mail-subscriptions"> <title>Subscription Management</title> <para> @@ -1605,9 +1606,154 @@ with quoted materials and the relevant replies interspersed--> will check for new messages whenever you press the <guibutton>Get Mail</guibutton> button. </para> + </sect2> + </sect1> + + <sect1 id="encryption"> + <title>Encryption</title> + <sect2 id="encryption-whatis"> + <title>What is Encryption?</title> + <para> + Encryption is an ancient method of changing readable text to unreadable + text that dates back to Egyptian times. Encryption takes the statement + "Evolution" and turns it into something which cannot be read without help + through decryption. + <example> + <title>Encryption Example</title> + <para> + Kevin orders an <application>Evolution</application> t-shirt from + Ximian, Inc. over the internet. He puts in his credit card number + which is 1234-567-8901. For security, his computer encrypts the + credit card number so it can be safely transmitted over the internet. + The number now is @#$23ui7yr87#@!48970fsd, which holds no intentional + resemblance to the inital number. When the information gets to + Ximian, Inc. it'll be decrypted into the inital number. + </para> + </example> + Encryption can be used in email in two ways: to verify that the sender is + the real sender, and to hide the message while in transmission. + <application>Evolution</application> has the capability to do both. + </para> + </sect2> + <sect2 id="encryption-keygen"> + <title>Generating your PGP key</title> + <para> + First, you need to create a PGP key. To do this, you'll need GPG + installed. + </para> + <tip> + <title>GPG Versions</title> + <para> + This manual covers version 1.0.6 of GPG. If your version is different, + this may not be entirely accurate. You may find out your version number + by typing in: <command>gpg --version</command>. + </para> + </tip> + <para> + You can start by typing in: <command>gpg --gen-key</command>. At the + first question, select 1. The next question asks you about key length. + The longer the key, more stronger it is. However, the longer the key, the + longer it takes to generate. This is your choice. However, 1024 bits + (default) should be adequate. The next question asks you if you want your + key to expire. Expiring keys make your key invalid after a certain amount + of time, so old keys don't float around active. This is the same concept + as a coupon at a supermarket. Next, you'll type in your Real name, your + email address, and a comment. You should not forge this information, as + it is used later to verify who you are. Assuming that all your + information is correct, press "O" to continue. GPG now asks you for a + passphrase. This is a password which you will need to decrypt and encrypt + messages. This can be any length, with any characters in it. It is case + sensitive, which means that it does know the difference between capital + letters and lower-case. Now your key is generated. It is recommend you + surf the internet, read your email, or write a letter in a word + processor. This help creates randomness in the key. + </para> + <para> + Once this is completed, you'll be dropped back to the command line. + Now you can view your key information by typing <command>gpg + --list-keys</command>. You should see something similar to this: + <example id="gpg-list-keys"> + <title>GPG Listing Keys</title> + <para> + /home/bob/.gnupg/pubring.gpg + ---------------------------- + pub 1024D/32j38dk2 2001-06-20 bob <bob@bob.com> + sub 1024g/289sklj3 2001-06-20 [expires: 2002-11-14] + </para> + </example> + You'll now need to upload your public key to a keyserver, so that your + friends can use your key. You'll need to know the ID of your key, which + is after the 1024D on the line beginning with pub. For this example, it + is 32j38dk2. You now type in <command>gpg --send-keys --keyserver + wwwkeys.pgp.net 32j38dk2</command>. Substitute your key ID for 32j38dk2. + You will be prompted to type in your password <!-- verify that you need to + enter your password here --> and your key will be uploaded for your + friends to download. + </para> + </sect2> + <sect2 id="encrypt-evo-integ"> + <title>Setting up Evolution's Encryption</title> + <para> + You'll need to open + <menuchoice> + <guimenu>Tools</guimenu> + <guimenuitem>Mail Settings</guimenuitem> + </menuchoice> + Once there, select the account you'd like to associate the key to and click + the <guibutton>Edit</guibutton> button. In the + <guilabel>Security</guilabel> tab is a section labeled <guilabel>Pretty + Goog Privacy</guilabel>. Enter your key ID and click + <guibutton>OK</guibutton>. Your key is now integrated into your identity + in <application>Evolution</application>. + </para> + </sect2> + <sect2 id="encrypt-sending"> + <title>Sending Encrypted Messages</title> + <para> + You can either sign or encrypt a message. When you sign a message, verify + that you were the one who sent it, and that no one is forging your + identity. Encrypting a message makes it impossible for someone with + prying eyes to view it while it's in tranmission. + </para> + </sect2> + + <sect2 id="sign-msg"> + <title>Signing a Message</title> + <para> + To sign a message, you simply click + <menuchoice> + <guimenu>Security</guimenu> + <guimenuitem>PGP Sign</guimenuitem> + </menuchoice> + . You will be prompted for your PGP password. Once you enter it, + click <guibutton>OK</guibutton> and your message will be signed. + </para> </sect2> + + <sect2 id="encrypt-msg"> + <title>Encrypting a Message</title> + <para> + Encrypting a message is very similar to signing a message. You simply + click the menu item + <menuchoice> + <guimenu>Security</guimenu> + <guimenuitem>PGP Encrypt</guimenuitem> + </menuchoice> + </para> + </sect2> + <sect2 id="unencrypting"> + <title>Unencrypting a Recieved Message</title> + <para> + Sometimes, a friend will send you a message which is encrypted. In order + for you to read it, you need to unencrypt it. + </para> + <para> + When you view the encrypted message, <application>Evolution</application> + will prompt you for your PGP password. You type in your PGP password and + the message is then decrypted. + </para> + </sect2> </sect1> </chapter> - |