Adding workshop link.
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1<!DOCTYPE html>
2<html>
3 <head>
668de811 4 <meta http-equiv="content-type" content="text/html; charset=utf-8" />
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614e3bf4 6 <title>Email Self-Defense - a guide to fighting surveillance with GnuPG encryption</title>
e4a684cf 7 <meta name="keywords" content="GnuPG, GPG, openpgp, surveillance, privacy, email, Enigmail" />
c1ea5176 8 <meta name="description" content="Email surveillance violates our fundamental rights and makes free speech risky. This guide will teach you email self-defense in 30 minutes with GnuPG." />
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10 <meta name="viewport" content="width=device-width, initial-scale=1" />
11 <link rel="stylesheet" href="//static.fsf.org/nosvn/enc-dev0/css/main.css" />
f65fbc20 12 <link rel="shortcut icon" href="//static.fsf.org/nosvn/enc-dev0/img/favicon.ico" />
05bfcb9e 13
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14 </head>
15 <body>
6c495e2d 16
2cb815ae 17<!-- ~~~~~~~~~ GnuPG Header and introduction text ~~~~~~~~~ -->
9176cae7 18
b9b57d1a 19 <header class="row" id="header">
bdf319c4 20 <div>
b3ec2c8d 21 <h1>Email Self-Defense</h1>
5a426655 22
b3ec2c8d 23 <!-- Language list for browsers that do not have JS enabled -->
2a3a3850 24 <span style="float: right">v 4.0</span>
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25 <ul id="languages" class="os">
26 <li><a class="current" href="/en">english</a></li>
c5d213fc 27 <li><a href="/es">español</a></li>
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28 <li><a href="/fr">français</a></li>
29 <li><a href="/de">deutsch</a></li>
c5d213fc 30 <li><a href="/it">italiano</a></li>
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31 <li><a href="/pt-br">português do Brasil</a></li>
32 <li><a href="/tr">türkçe</a></li>
c5d213fc 33 <li><a href="/ro">română</a></li>
b3ec2c8d 34 <li><a href="/ru">русский</a></li>
8fd4a69a 35 <!--<li><a href="/ml">മലയാളം</a></li>-->
d27e43aa 36 <!--<li><a href="/ko">한국어</a></li>-->
b3ec2c8d 37 <li><a href="/ja">日本語</a></li>
c5d213fc 38 <li><a href="/el">ελληνικά</a></li>
8f538927 39 <!--<li><a href="/ar">العربية</a></li>-->
b3ec2c8d 40 </ul>
5a426655 41
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42 <ul id="menu" class="os">
43 <li class="spacer">
44 <a href="index.html" class="current">GNU/Linux</a>
45 </li>
46 <li>
47 <a href="mac.html">Mac OS</a>
48 </li>
49 <li>
50 <a href="windows.html">Windows</a>
51 </li>
653cb9cf 52 <li class="spacer"><a href="workshops.html">Lead a workshop</a></li>
80ef766e 53
b3ec2c8d 54 <li class="spacer">
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55 <a href="https://fsf.org/share?u=https://u.fsf.org/zb&amp;t=Email encryption for everyone via %40fsf">
56 Share&nbsp;
db57ca22 57 <img src="//static.fsf.org/nosvn/enc-dev0/img/gnu-social.png"
44a50574 58 class="share-logo" alt="[GNU Social]">&nbsp;
3e6a8fb6 59 <img src="//static.fsf.org/nosvn/enc-dev0/img/pump.io.png"
44a50574 60 class="share-logo" alt="[Pump.io]">&nbsp;
3e6a8fb6 61 <img src="//static.fsf.org/nosvn/enc-dev0/img/reddit-alien.png"
44a50574 62 class="share-logo" alt="[Reddit]">&nbsp;
3e6a8fb6 63 <img src="//static.fsf.org/nosvn/enc-dev0/img/hacker-news.png"
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64 class="share-logo" alt="[Hacker News]">
65 </a>
ae5aaaee 66 </li>
b3ec2c8d 67 </ul>
6b62e8bb 68
2378bdbf 69 <!-- ~~~~~~~~~ FSF Introduction ~~~~~~~~~ -->
c919b2d2 70 <div id="fsf-intro">
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71 <h3>
72 <a href="http://u.fsf.org/ys">
73 <img alt="Free Software Foundation"
c1ea5176 74 src="//static.fsf.org/nosvn/enc-dev0/img/fsf-logo.png" />
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75 </a>
76 </h3>
77 <div class="fsf-emphasis">
78 <p>
b3d5c595 79 We fight for computer users' rights, and promote the development of free (as in freedom) software. Resisting bulk surveillance is very important to us.
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80 </p>
81 <p>
82 <strong>
d8ced2c3 83 We want to translate this guide into more languages, and make a version for encryption on mobile devices. Please donate, and help people around the world take the first step towards protecting their privacy with free software.
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84 </strong>
85 </p>
86 </div>
36e7b21f 87
45cff628 88 <p><a href="https://crm.fsf.org/civicrm/contribute/transact?reset=1&amp;id=14&amp;pk_campaign=email_self_defense&amp;pk_kwd=guide_donate"><img alt="Donate" src="//static.fsf.org/nosvn/enc-dev0/img/en/donate.png" /></a> </p>
06d022ce 89
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90 </div><!-- End #fsf-intro -->
91
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92 <!-- ~~~~~~~~~ Guide Introduction ~~~~~~~~~ -->
93 <div class="intro">
bf4eb540 94 <p>
de0ab142 95 <a id="infographic" href="infographic.html"><img src="//static.fsf.org/nosvn/enc-dev0/img/en/infographic-button.png" alt="View &amp; share our infographic &rarr;" /></a>
7fe1d11a 96 Bulk surveillance violates our fundamental rights and makes free speech risky. This guide will teach you a basic surveillance self-defense skill: email encryption. Once you've finished, you'll be able to send and receive emails that are scrambed to make sure a surveillance agent or thief intercepting your email can't read it. All you need is a computer with an Internet connection, an email account, and about half an hour.</p>
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97
98<p>Even if you have nothing to hide, using encryption helps protect the privacy of people you communicate with, and makes life difficult for bulk surveillance systems. If you do have something important to hide, you're in good company; these are the same tools that Edward Snowden used to share his famous secrets about the NSA.</p>
99
7fe1d11a 100<p>In addition to using encryption, standing up to surveillance requires fighting politically for a <a href="http://gnu.org/philosophy/surveillance-vs-democracy.html">reduction in the amount of data collected on us</a>, but the essential first step is to protect yourself and make surveillance of your communication as difficult as possible. This guide helps you do that. If you're just starting out, don't worry about reading the "advanced" tips; they're completely non-essential to getting you up and running. Let's get started!</p>
f56da436 101
946f0ee1 102 </div><!-- End .intro -->
0a225228 103
bdf319c4 104 </div>
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105 </header><!-- End #header -->
106
2cb815ae 107<!-- ~~~~~~~~~ Section 1: Get the pieces ~~~~~~~~~ -->
6c495e2d 108 <section class="row" id="section1">
bdf319c4 109 <div>
5c207a4d 110 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
2378bdbf 111 <div class="section-intro">
2378bdbf 112 <h2><em>#1</em> Get the pieces</h2>
1b319a0f 113<p class="notes">This guide relies on software which is freely licensed; it's completely transparent and anyone can copy it or make their own version. This makes it safer from surveillance than proprietary software (like Windows). Learn more about free software at <a href="https://u.fsf.org/ys">fsf.org</a>.</p>
8015decf 114
57f57e85 115<p>Most GNU/Linux operating systems come with GnuPG installed on them, so you don't have to download it. Before configuring GnuPG though, you'll need the IceDove desktop email program installed on your computer. Most GNU/Linux distributions have IceDove installed already, though it may be under the alternate name "Thunderbird." Email programs are another way to access the same email accounts you can access in a browser (like Gmail), but provide extra features.</p>
e7485dc5 116 <p>If you already have an email program, you can skip to <a href="#step-1b">Step 1.b</a>.</p>
2378bdbf 117 </div><!-- End .section-intro -->
dbd3bf12 118
2cb815ae 119 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
2378bdbf 120 <div id="step-1a" class="step">
2cb815ae 121 <div class="sidebar">
de0ab142 122 <p><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/step1a-install-wizard.png" alt="Step 1.A: Install Wizard" /></p>
2cb815ae 123 </div><!-- /.sidebar -->
2378bdbf 124 <div class="main">
e7485dc5 125 <h3><em>Step 1.a</em> Setup your email program with your email account</h3>
7fe1d11a 126 <p>Open your email program and follow the wizard (step-by-step walkthrough) that sets it up with your email account. Look for the letters SSL, TLS, or STARTTLS to the right of the servers when you're setting up your account. If you don't see them, you will still be able to use encryption, but this means that the people running your email system are running behind the industry standard in protecting your security and privacy. We recommend that you send them a friendly email asking them to enable SSL, TLS, or STARTTLS for your email server.</p>
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128 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
129 <div class="troubleshooting">
130 <h4>Troubleshooting</h4>
131 <dl>
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132 <dt>The wizard doesn't launch</dt>
133 <dd>You can launch the wizard yourself, but the menu option for doing so is named differently in each email programs. The button to launch it will be in the program's main menu, under "New" or something similar, titled something like "Add account" or "New/Existing email account."</dd>
134 <dt>The wizard can't find my account or isn't downloading my mail</dt>
a60a6e36 135 <dd>Before searching the Web, we recommend you start by asking other people who use your email system, to figure out the correct settings.</dd>
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136 <dt class="feedback">Don't see a solution to your problem?</dt>
137 <dd class="feedback">Please let us know on the <a href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback page</a>.</dd>
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138 </dl>
139 </div><!-- /.troubleshooting -->
140
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141 </div><!-- End .main -->
142 </div><!-- End #step1-a .step -->
6c495e2d 143
2378bdbf 144 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
f44dd62f 145 <div id="step-1b" class="step">
b7e5df33 146 <div class="sidebar">
f44dd62f 147 <ul class="images">
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148 <li><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/step1b-01-tools-addons.png" alt="Step 1.B: Tools -> Add-ons" /></li>
149 <li><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/step1b-02-search.png" alt="Step 1.B: Search Add-ons" /></li>
150 <li><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/step1b-03-install.png" alt="Step 1.B: Install Add-ons" /></li>
f44dd62f 151 </ul>
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152 </div><!-- /.sidebar -->
153 <div class="main">
154 <h3><em>Step 1.b</em> Install the Enigmail plugin for your email program</h3>
e7485dc5 155 <p>In your email program's menu, select Add-ons (it may be in the Tools section). Make sure Extensions is selected on the left. Do you see Enigmail? If so, skip this step.</p>
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156 <p>If not, search "Enigmail" with the search bar in the upper right. You can take it from here. Restart your email program when you're done.</p>
157 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
158 <div class="troubleshooting">
159 <h4>Troubleshooting</h4>
160 <dl>
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161 <dt>I can't find the menu.</dt>
162 <dd>In many new email programs, the main menu is represented by an image of three stacked horizontal bars.</dd>
61bbfa91 163
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164 <dt class="feedback">Don't see a solution to your problem?</dt>
165 <dd class="feedback">Please let us know on the <a href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback page</a>.</dd>
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166 </dl>
167 </div><!-- /.troubleshooting -->
168 </div><!-- End .main -->
f44dd62f 169 </div><!-- End #step-1b .step -->
bdf319c4 170 </div>
6c495e2d 171 </section><!-- End #section1 -->
bdf319c4 172
2cb815ae 173<!-- ~~~~~~~~~ Section 2: Make your keys ~~~~~~~~~ -->
6c495e2d 174 <section class="row" id="section2">
bdf319c4 175 <div>
5c207a4d 176 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
2378bdbf 177 <div class="section-intro">
bdf319c4 178 <h2><em>#2</em> Make your keys</h2>
bbfaa44d 179 <p>To use the GnuPG system, you'll need a public key and a private key (known together as a keypair). Each is a long string of randomly generated numbers and letters that are unique to you. Your public and private keys are linked together by a special mathematical function.</p>
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180
181<p>Your public key isn't like a physical key, because it's stored in the open in an online directory called a keyserver. People download it and use it, along with GnuPG, to encrypt emails they send to you. You can think of the keyserver as phonebook, where people who want to send you an encrypted email look up your public key.</p>
182
7fe1d11a 183<p>Your private key is more like a physical key, because you keep it to yourself (on your computer). You use GnuPG and your private key to descramble encrypted emails other people send to you.</p>
2378bdbf 184 </div><!-- End .section-intro -->
6c495e2d 185
2cb815ae 186 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
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187 <div id="step-2a" class="step">
188 <div class="sidebar">
de0ab142 189 <p><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/step2a-01-make-keypair.png" alt="Step 2.A: Make a Keypair" /></p>
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190 </div><!-- /.sidebar -->
191 <div class="main">
192 <h3><em>Step 2.a</em> Make a keypair</h3>
e7485dc5 193 <p>The Enigmail Setup wizard may start automatically. If it doesn't, select Enigmail &rarr; Setup Wizard from your email program's menu. You don't need to read the text in the window that pops up unless you'd like to, but it's good to read the text on the later screens of the wizard. Click Next with the default options selected, except in these instances:</p>
a632ae17 194<ul>
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195 <li>On the screen titled "Encryption," select "Encrypt all of my messages by default, because privacy is critical to me."</li>
196 <li>On the screen titled "Signing," select "Don't sign my messages by default."</li>
a9b758ff 197 <li>On the screen titled "Key Selection," select "I want to create a new key pair for signing and encrypting my email."</li>
7fe1d11a 198 <li>On the screen titled "Create Key," pick a strong password! Your password should be at least 12 characters and include at least one lower case and upper case letter and at least one number or punctuation symbol. Always assume surveillance agents can figure out your online passwords, so never reuse passwords for GnuPG elsewhere. Don't forget the password, or all this work will be wasted!</li>
a632ae17 199</ul>
034f3546 200 <p class="notes">The program will take a little while to finish the next step, the "Key Creation" screen. While you wait, do something else with your computer, like watching a movie or browsing the Web. The more you use the computer at this point, the faster the key creation will go.</p>
688dc100 201 <p><span style="font-weight: bold;">When the "Key Generation Completed" screen pops up, select Generate Certificate and choose to save it in a safe place on your computer (we recommend making a folder called "Revocation Certificate" in your home folder and keeping it there). This step is essential for your email self-defense, as you'll learn more about in <a href="#section5">Section 5</a>.</span></p>
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50aa6a31 203
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204 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
205 <div class="troubleshooting">
206 <h4>Troubleshooting</h4>
207 <dl>
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208 <dt>I can't find the Enigmail menu.</dt>
209 <dd>In many new email programs, the main menu is represented by an image of three stacked horizontal bars. Enigmail may be inside a section called Tools.</dd>
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210 <dt>The wizard says that it cannot find GnuPG.</dt>
211
2ba31b7b 212 <dd>Open whatever program you usually use for installing software, and search for GnuPG, then install it. Then restart the Enigmail setup wizard by going to Enigmail &rarr; Setup Wizard.</dd>
3233362f 213 <dt>More resources</dt>
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214 <dd>If you're having trouble with our instructions or just want to learn more, check out <a href="https://enigmail.wiki/Key_Management#Generating_your_own_key_pair">Enigmail's wiki instructions for key generation</a>.</dd>
215
216
0a225228 217
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218 <dt class="feedback">Don't see a solution to your problem?</dt>
219 <dd class="feedback">Please let us know on the <a href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback page</a>.</dd>
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220 </dl>
221 </div><!-- /.troubleshooting -->
7fe1d11a 222 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
18d05e65 223
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224 <div class="troubleshooting">
225 <h4>Advanced</h4>
226 <dl>
227 <dt>Strong Passphrases with Diceware</dt>
25bcf5c3 228 <dd>Human-made passwords tend to either be very easy to guess, or difficult to memorise and easy to forget. Fortunately, if your privacy is more important to you than an extra 10 to 15 minutes of your time, you can use dice to come up with a password which is both strong and memorable using the 'diceware' method.</dd>
2a3a3850 229
9db171b0 230<dd>To use the diceware method, you will need dice (preferably 5, but 1 will do) and <a href="http://world.std.com/~reinhold/diceware.wordlist.asc">this list of words</a>. Do not substitute computer dice for physical dice. Notice that each word on the word list corresponds to a unique five-digit number. Role one dice five times, or five dice once to select the first word. Don't rearrange or discard words, because doing so makes the process much less secure. Repeat this process until you have at least six words, and there's your password.</dd>
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231
232 <dt>Command-line key generation</dt>
2a3a3850 233 <dd>If you prefer using the command line for a higher degree of control, you can follow the documentation from the <a href="http://www.dewinter.com/gnupg_howto/english/GPGMiniHowto-3.html#ss3.1">GnuPG Mini Howto</a> or <a href="https://www.gnupg.org/gph/en/manual/c14.html#AEN25">The GNU Privacy Handbook</a>. Make sure you stick with "RSA and RSA" (the default), because it's newer and more secure than algorithms recommended in the old previously mentioned documentation.</dd>
18d05e65 234
e5774e67 235 <dt>Advanced key pairs</dt>
2bbef580 236 <dd>When GnuPG creates a new keypair, it compartmentalizes the encryption function from the signing function through <a href="https://wiki.debian.org/Subkeys">subkeys</a>. If you use subkeys carefully, you can keep your GnuPG identity much more secure and recover from a compromised key much more quickly. <a href="https://alexcabal.com/creating-the-perfect-gpg-keypair/">Alex Cabal</a> and <a href="http://keyring.debian.org/creating-key.html">the Debian wiki</a> provide good guides for setting up a secure subkey configuration.</dd>
29db7a83 237 </dl>
7fe1d11a 238 </div><!-- /.troubleshooting -->
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239 </div><!-- End .main -->
240 </div><!-- End #step-2a .step -->
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241
242
243
548ae59b 244 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
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245 <div id="step-2b" class="step">
246 <div class="main">
247 <h3><em>Step 2.b</em> Upload your public key to a keyserver</h3>
2ba31b7b 248 <p>In your email program's menu, select Enigmail &rarr; Key Management.</p>
8bd50444 249<p>Right click on your key and select Upload Public Keys to Keyserver. Use the default keyserver in the popup.</p>
7a3d8912 250<p class="notes">Now someone who wants to send you an encrypted message can download your public key from the Internet. There are multiple keyservers that you can select from the menu when you upload, but they are all copies of each other, so it doesn't matter which one you use. However, it sometimes takes a few hours for them to match each other when a new key is uploaded.</p>
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251 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
252 <div class="troubleshooting">
253 <h4>Troubleshooting</h4>
254 <dl>
1536eb6d 255 <dt>The progress bar never finishes.</dt>
66a99343 256 <dd>Close the upload popup, make sure you are connected to the Internet, and try again. If that doesn't work, try again, selecting a different keyserver.</dd>
f0264d3e 257<dt>My key doesnt appear in the list</dt>
b40f9711 258 <dd>Try checking "Display All Keys by Default."</dd>
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259 <dt>More documentation</dt>
260 <dd>If you're having trouble with our instructions or just want to learn more, check out <a href="https://www.enigmail.net/documentation/quickstart-ch2.php#id2533620">Enigmail's documentation</a>.</dd>
a60a6e36 261
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262 <dt class="feedback">Don't see a solution to your problem?</dt>
263 <dd class="feedback">Please let us know on the <a href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback page</a>.</dd>
601e0398 264
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265 </dl>
266 </div><!-- /.troubleshooting -->
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267
268 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
269 <div class="troubleshooting">
270 <h4>Advanced</h4>
271 <dl>
272 <dt>Uploading a key from the command-line</dt>
273 <dd>You can also upload your keys to a keyserver through the <a href="https://help.ubuntu.com/community/GnuPrivacyGuardHowto#Uploading_the_key_to_Ubuntu_keyserver">command-line</a>. <a href="https://sks-keyservers.net/overview-of-pools.php">this webpage</a> maintains a good list highly interconnected keyservers. You can also <a href="https://www.gnupg.org/gph/en/manual/x56.html#AEN64">directly export your key</a> as a file on your computer.</dd>
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274
275 </dl>
276 </div><!-- /.troubleshooting -->
8bd50444 277 </div><!-- End .main -->
d8b88fc2 278 </div><!-- End #step-2b .step -->
e155c686 279
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280 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
281 <div id="terminology" class="step">
282 <div class="main">
283 <h3>GnuPG, OpenPGP, what?</h3>
2ba31b7b 284 <p>In general, the terms GnuPG, GPG, GNU Privacy Guard, OpenPGP and PGP are used interchangeably. Technically, OpenPGP (Pretty Good Privacy) is the encryption standard, and GNU Privacy Guard (often shortened to GPG or GnuPG) is the program that implements the standard. Enigmail is a plug-in program for your email program that provides an interface for GnuPG.</p>
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285 </div><!-- End .main -->
286 </div><!-- End #terminology.step-->
287
8bd50444 288
bdf319c4 289 </div>
6c495e2d 290 </section><!-- End #section2 -->
bdf319c4 291
2cb815ae 292<!-- ~~~~~~~~~ Section 3: Try it out ~~~~~~~~~ -->
6c495e2d 293 <section class="row" id="section3">
bdf319c4 294 <div>
5c207a4d 295 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
2378bdbf 296 <div class="section-intro">
2378bdbf 297 <h2><em>#3</em> Try it out!</h2>
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298 <p>Now you'll try a test correspondence with a computer program named Edward, which knows how to use encryption. Except where noted, these are the same steps you'd follow when corresponding with a real, live person.</p>
299
c5727b4b 300 <p>NOTE: Edward is currently having some technical difficulties, so he may take a long time to respond, or not respond at all. We're sorry about this and we're working hard to fix it. Your key will still work even without testing with Edward.</p>
3568a584 301 </div><!-- End .section-intro -->
5c207a4d 302
2cb815ae 303 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
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304 <div id="step-3a" class="step">
305 <div class="sidebar">
de0ab142 306 <p><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/section3-try-it-out.png" alt="Try it out." /></p>
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307 </div><!-- /.sidebar -->
308 <div class="main">
b3d5c595 309 <h3><em>Step 3.a</em> Send Edward your public key</h3>
2ba31b7b 310 <p>This is a special step that you won't have to do when corresponding with real people. In your email program's menu, go to Enigmail &rarr; Key Management. You should see your key in the list that pops up. Right click on your key and select Send Public Keys by Email. This will create a new draft message, as if you had just hit the Write button.</p>
43bd32d7 311
1dd15497 312<p>Address the message to edward-en@fsf.org. Put at least one word (whatever you want) in the subject and body of the email. Don't send yet.</p>
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313
314<p>There should be an icon of a yellow key in the bottom right of the composition window. This means that encryption is on, however, we want this first special message to Edward to be unencrypted. Click the key icon once to turn encryption off. The key should become grey, with a blue dot on it (to alert you that the setting has been changed from the default). Once encryption is off, hit Send.</p>
43bd32d7 315
b3d5c595 316<p class="notes">It may take two or three minutes for Edward to respond. In the meantime, you might want to skip ahead and check out the <a href="#section5">Use it Well</a> section of this guide. Once he's responded, head to the next step. From here on, you'll be doing just the same thing as when corresponding with a real person.</p>
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317
318<p>When you open Edward's reply, Enigmail may prompt you for your password before using your private key to decrypt it.</p>
2378bdbf 319 </div><!-- End .main -->
d8b88fc2 320 </div><!-- End #step-3a .step -->
6c495e2d 321
2cb815ae 322 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
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323 <div id="step-3b" class="step">
324 <div class="main">
325 <h3><em>Step 3.b</em> Send a test encrypted email</h3>
c8a248b8 326 <p>Write a new email in your email program, addressed to edward-en@fsf.org. Make the subject "Encryption test" or something similar and write something in the body.</p>
d77ed4f0 327 <p>The key in the bottom right of the window should be yellow, meaning encryption is on. This will be your default from now on.</p>
d325c924 328 <p class="notes">Next to the key, you'll notice an icon of a pencil. Clicking this tells Enigmail to add a special, unique signature to your message, generated using your private key. This is a separate feature from encryption, and you don't have to use it for this guide.</p>
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329 <p>Click Send. Enigmail will pop up a window that says "Recipients not valid, not trusted or not found."</p>
330
357dc69d 331 <p>To encrypt an email to Edward, you need his public key, so now you'll have Enigmail download it from a keyserver. Click Download Missing Keys and use the default in the pop-up that asks you to choose a keyserver. Once it finds keys, check the first one (Key ID starting with C), then select ok. Select ok in the next pop-up.</p>
5c207a4d 332
c8a248b8 333 <p>Now you are back at the "Recipients not valid, not trusted or not found" screen. Check the box in front of Edward's key and click Send.</p>
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334
335<p class="notes">Since you encrypted this email with Edward's public key, Edward's private key is required to decrypt it. Edward is the only one with his private key, so no one except him &mdash; not even you &mdash; can decrypt it.</p>
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336 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
337 <div class="troubleshooting">
338 <h4>Troubleshooting</h4>
339 <dl>
b3d5c595 340 <dt>Enigmail can't find Edward's key</dt>
7a944c0b 341 <dd>Close the pop-ups that have appeared since you clicked Send. Make sure you are connected to the Internet and try again. If that doesn't work, repeat the process, choosing a different keyserver when it asks you to pick one.</dd>
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342 <dt>More resources</dt>
343 <dd>If you're still having trouble with our instructions or just want to learn more, check out <a href="https://enigmail.wiki/Signature_and_Encryption#Encrypting_a_message">Enigmail's wiki</a>.</dd>
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344 <dt class="feedback">Don't see a solution to your problem?</dt>
345 <dd class="feedback">Please let us know on the <a href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback page</a>.</dd>
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346 </dl>
347 </div><!-- /.troubleshooting -->
348 </div><!-- End .main -->
349 </div><!-- End #step-3b .step -->
43bd32d7 350
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351 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
352 <div id="step-headers_unencrypted" class="step">
353 <div class="main">
6e1b0fa2 354 <h3><em>Important:</em> Security tips</h3>
452ac60c 355 <p>Even if you encrypt your email, the subject line is not encrypted, so don't put private information there. The sending and receiving addresses aren't encrypted either, so a surveillance system can still figure out who you're communicating with. Also, surveillance agents will know that you're using GnuPG, even if they can't figure out what you're saying. When you send attachments, Enigmail will give you an option of whether you want to encrypt them.</p>
7a944c0b 356
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357 </div><!-- End .main -->
358 </div><!-- End #step-headers_unencrypted .step-->
359
360
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361 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
362 <div id="step-3c" class="step">
363 <div class="main">
364 <h3><em>Step 3.c</em> Receive a response</h3>
97925583 365 <p>When Edward receives your email, he will use his private key to decrypt it, then use your public key (which you sent him in <a href="#step-3a">Step 3.A</a>) to encrypt his reply to you.</p>
668de811 366
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367 <p class="notes">It may take two or three minutes for Edward to respond. In the meantime, you might want to skip ahead and check out the <a href="#section5">Use it Well</a> section of this guide.</p>
368 <p>When you receive Edward's email and open it, Enigmail will automatically detect that it is encrypted with your public key, and then it will use your private key to decrypt it.</p>
369 <p>Notice the bar that Enigmail shows you above the message, with information about the status of Edward's key.</p>
2378bdbf 370 </div><!-- End .main -->
43bd32d7 371 </div><!-- End #step-3c .step -->
6c495e2d 372
61bbfa91 373<!-- STEP 3D IS COMMENTED OUT UNTIL WE FIND A WAY TO VALIDATE SIGNATURES
43bd32d7 374 <div id="step-3d" class="step">
2378bdbf 375 <div class="main">
43bd32d7 376 <h3><em>Step 3.d</em> Send a test signed email to a friend</h3>
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377 <p>Write a new email in your email program, addressed to a friend. If you want, tell them about this guide!</p>
378 <p>Before sending the email, click the icon of the pencil in the bottom right of the composition window (it should turn yellow). This tells Enigmail to sign the email with you private key.</p>
379 <p>After you click send, Enigmail will ask you for your password. It will do this any time it needs to use your public key.</p>
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380 </div>
381 </div>-->
bdf319c4 382 </div>
d351e1bf 383 </section><!-- End #section3 -->
61bbfa91 384
bdf319c4 385
2cb815ae 386<!-- ~~~~~~~~~ Section 4: Learn the Web of Trust ~~~~~~~~~ -->
6c495e2d 387 <section class="row" id="section4">
bdf319c4 388 <div>
5c207a4d 389 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
2378bdbf 390 <div class="section-intro">
2378bdbf 391 <h2><em>#4</em> Learn the Web of Trust</h2>
b0ce405b 392 <p>Email encryption is a powerful technology, but it has a weakness; it requires a way to verify that a person's public key is actually theirs. Otherwise, there would be no way to stop an attacker from making an email address with your friend's name, creating keys to go with it and impersonating your friend. That's why the free software programmers that developed email encryption created keysigning and the Web of Trust.</p>
eacb2880 393
66a99343 394<p>When you sign someone's key, you are publicly saying that you trust that it does belong to them and not an impostor. People who use your public key can see the number of signatures it has. Once you've used GnuPG for a long time, you may have hundreds of signatures. The Web of Trust is the constellation of all GnuPG users, connected to each other by chains of trust expressed through signatures, forming a giant network. The more signatures a key has, and the more signatures its signers' keys have, the more trustworthy that key is.</p>
eacb2880 395
2ba31b7b 396<p>People's public keys are usually identified by their key fingerprint, which is a string of digits like F357AA1A5B1FA42CFD9FE52A9FF2194CC09A61E8 (for Edward's key). You can see the fingerprint for your public key, and other public keys saved on your computer, by going to Enigmail &rarr; Key Management in your email program's menu, then right clicking on the key and choosing Key Properties. It's good practice to share your fingerprint wherever you share your email address, so that people can double-check that they have the correct public key when they download yours from a keyserver.</p>
6ce3ff70 397
c8a248b8 398<p class="notes">You may also see public keys referred to by their key ID, which is simply the last 8 digits of the fingerprint, like C09A61E8 for Edward. The key ID is visible directly from the Key Management window. This key ID is like a person's first name (it is a useful shorthand but may not be unique to a given key), whereas the fingerprint actually identifies the key uniquely without the possibility of confusion. If you only have the key ID, you can still look up the key (as well as its fingerprint), like you did in Step 3, but if multiple options appear, you'll need the fingerprint of the person to whom are trying to communicate to verify which one to use.</p>
6ce3ff70 399
eacb2880 400
2378bdbf 401 </div><!-- End .section-intro -->
6c495e2d 402
2cb815ae 403 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
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404 <div id="step-4a" class="step">
405 <div class="sidebar">
de0ab142 406 <p><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/section4-web-of-trust.png" alt="Section 4: Web of Trust" /></p>
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407 </div><!-- /.sidebar -->
408 <div class="main">
409 <h3><em>Step 4.a</em> Sign a key</h3>
2ba31b7b 410 <p>In your email program's menu, go to Enigmail &rarr; Key Management.</p>
b3d5c595 411 <p>Right click on Edward's public key and select Sign Key from the context menu.</p>
66a99343 412 <p>In the window that pops up, select "I will not answer" and click ok.</p>
c8a248b8 413 <p>Now you should be back at the Key Management menu. Select Keyserver &rarr; Upload Public Keys and hit ok.</p>
b3d5c595 414 <p class="notes">You've just effectively said "I trust that Edward's public key actually belongs to Edward." This doesn't mean much because Edward isn't a real person, but it's good practice.</p>
eacb2880 415
399c9783 416
0fe6e02e 417 <!--<div id="pgp-pathfinder">
399c9783 418 <form enctype="application/x-www-form-urlencoded" action="/mk_path.cgi" method="get">
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419 <p><strong>From:</strong> <input type="text" placeholder="xD41A008" name="FROM"></p>
420 <p><strong>To:</strong> <input type="text" placeholder="50BD01x4" name="TO"></p>
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421 <p class="buttons"><input type="submit" value="trust paths" name="PATHS"> <input type="reset" value="reset" name=".reset"></p>
422 </form>
423 </div><!-- End #pgp-pathfinder -->
424
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425 </div><!-- End .main -->
426 </div><!-- End #step-4a .step -->
e155c686 427
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428 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
429 <div id="step-sign_real_keys" class="step">
430 <div class="main">
431 <h3><em>Important:</em> check people's identification before signing their keys</h3>
19d4fe06 432 <p>Before signing a real person's key, always make sure it actually belongs to them, and that they are who they say they are. Ask them to show you their ID (unless you trust them very highly) and their public key fingerprint -- not just the shorter public key ID, which could refer to another key as well. In Enigmail, answer honestly in the window that pops up and asks "How carefully have you verified that the key you are about to sign actually belongs to the person(s) named above?".</p>
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433 </div><!-- End .main -->
434 </div><!-- End #step-sign_real_keys .step-->
435
436
437
bdf319c4 438 </div>
6c495e2d 439 </section><!-- End #section4 -->
bdf319c4 440
2cb815ae 441<!-- ~~~~~~~~~ Section 5: Use it well ~~~~~~~~~ -->
5c207a4d 442 <section id="section5" class="row">
bdf319c4 443 <div>
5c207a4d 444 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
2378bdbf 445 <div class="section-intro">
2378bdbf 446 <h2><em>#5</em> Use it well</h2>
19e80165 447<p>Everyone uses GnuPG a little differently, but it's important to follow some basic practices to keep your email secure. Not following them, you risk the privacy of the people you communicate with, as well as your own, and damage the Web of Trust.</p>
2378bdbf 448 </div><!-- End .section-intro -->
6c495e2d 449
2cb815ae 450 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
2378bdbf 451 <div id="step-5a" class="step">
3fe46e6b 452 <div class="sidebar">
de0ab142 453 <p><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/section5-01-use-it-well.png" alt="Section 5: Use it Well" /></p>
3fe46e6b 454 </div><!-- /.sidebar -->
2378bdbf 455 <div class="main">
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456 <h3>When should I encrypt?</h3>
457
66a99343 458 <p>The more you can encrypt your messages, the better. If you only encrypt emails occasionally, each encrypted message could raise a red flag for surveillance systems. If all or most of your email is encrypted, people doing surveillance won't know where to start.</p>
19e80165 459
acd2fb80 460<p>That's not to say that only encrypting some of your email isn't helpful -- it's a great start and it makes bulk surveillance more difficult.</p>
0a225228 461
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462 </div><!-- End .main -->
463 </div><!-- End #step-5a .step -->
464
7e60af07 465 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
2378bdbf 466 <div id="step-5b" class="step">
7e60af07 467 <div class="sidebar">
de0ab142 468 <p><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/section5-02-use-it-well.png" alt="Section 5: Use it Well" /></p>
7e60af07 469 </div><!-- /.sidebar -->
2378bdbf 470 <div class="main">
2a3a3850 471 <h3>Be wary of invalid keys</h3>
40e65992 472 <p>GnuPG makes email safer, but it's still important to watch out for invalid keys, which might have fallen into the wrong hands. Email encrypted with invalid keys might be readable by surveillance programs.</p>
2ba31b7b 473 <p>In your email program, go back to the second email that Edward sent you. Because Edward encrypted it with your public key, it will have a message from Enigmail at the top, which most likely says "Enigmail: Part of this message encrypted."</p>
023d4279 474<p><b>When using GnuPG, make a habit of glancing at that bar. The program will warn you there if you get an email encrypted with a key that can't be trusted.</b></p>
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475 </div><!-- End .main -->
476 </div><!-- End #step-5b .step -->
6c495e2d 477
7e60af07 478 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
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479 <div id="step-5c" class="step">
480 <div class="main">
19e80165 481 <h3>Copy your revocation certificate to somewhere safe</h3>
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482 <p>Remember when you created your keys and saved the revocation certificate that GnuPG made? It's time to copy that certificate onto the safest digital storage that you have -- the ideal thing is a flash drive, disk, or hard drive stored in a safe place in your home.</p>
483<p>If your private key ever gets lost or stolen, you'll need this certificate file to let people know that you are no longer using that keypair.</p>
2378bdbf 484 </div><!-- End .main -->
19e80165 485 </div><!-- End #step-5c .step -->
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486
487 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
488 <div id="step-lost_key" class="step">
489 <div class="main">
19e80165 490 <h3><em>Important:</em> act swiftly if someone gets your private key</h3>
034f3546 491 <p>If you lose your private key or someone else gets ahold of it (say, by stealing or cracking your computer), it's important to revoke it immediately before someone else uses it to read your encrypted email. This guide doesn't cover how to revoke a key, but you can follow the <a href="https://www.gnupg.org/gph/en/manual.html#AEN305">instructions on the GnuPG site</a>. After you're done revoking, send an email to everyone with whom you usually use your key to make sure they know.</p>
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492 </div><!-- End .main -->
493 </div><!-- End #step-lost_key .step-->
494
0a225228 495 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~
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496 <div id="step-5d" class="step">
497 <div class="main">
b0ce405b 498 <h3>Make your public key part of your online identity</h3>
be23bf7b 499 <p> First add your public key fingerprint to your email signature, then compose an email to at least five of your friends, telling them you just set up GnuPG and mentioning your public key fingerprint. Link to this guide and ask them to join you. Don't forget that there's also an awesome <a href="infographic.html">infographic to share.</a></p>
b0ce405b 500
be23bf7b 501<p class="notes">Start writing your public key fingerprint anywhere someone would see your email address: your social media profiles, blog, Website, or business card. (At the Free Software Foundation, we put ours on our <a href="https://fsf.org/about/staff">staff page</a>.) We need to get our culture to the point that we feel like something is missing when we see an email address without a public key fingerprint.</p>
0a225228 502 </div><!-- End .main
bbfaa44d 503 </div> End #step-5d .step-->
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504
505
bdf319c4 506 </div>
6c495e2d 507 </section><!-- End #section5 -->
bdf319c4 508
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509
510
2cb815ae 511<!-- ~~~~~~~~~ Section 6: Next steps ~~~~~~~~~ -->
6c495e2d 512 <section class="row" id="section6">
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513 <div id="step-click_here" class="step">
514 <div class="main">
c6345aa7 515 <h2><a href="next_steps.html">Great job! Check out the next steps.</a></h2>
0a225228 516
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517 </div><!-- End .main -->
518 </div><!-- End #step-click_here .step-->
bb28ee32 519
6c495e2d 520 </section><!-- End #section6 -->
bdf319c4 521
2cb815ae 522<!-- ~~~~~~~~~ FAQ ~~~~~~~~~ -->
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523<!-- When un-commenting this section go to main.css and search
524 for /* Guide Sections Background */ then add #faq to the desired color
0a225228 525
6c495e2d 526 <section class="row" id="faq">
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527 <div>
528 <div class="sidebar">
529 <h2>FAQ</h2>
f44dd62f 530 </div>
6c495e2d 531
bdf319c4 532 <div class="main">
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533 <dl>
534 <dt>My key expired</dt>
535 <dd>Answer coming soon.</dd>
536
537 <dt>Who can read encrypted messages? Who can read signed ones?</dt>
538 <dd>Answer coming soon.</dd>
539
540 <dt>My email program is opening at times I don't want it to open/is now my default program and I don't want it to be.</dt>
541 <dd>Answer coming soon.</dd>
542 </dl>
f44dd62f 543 </div>
bdf319c4 544 </div>
f44dd62f 545 </section> --><!-- End #faq -->
bdf319c4 546
2cb815ae 547<!-- ~~~~~~~~~ Footer ~~~~~~~~~ -->
6c495e2d 548 <footer class="row" id="footer">
bdf319c4 549 <div>
bdf319c4 550 <div id="copyright">
c1ea5176 551 <h4><a href="https://u.fsf.org/ys"><img alt="Free Software Foundation" src="//static.fsf.org/nosvn/enc-dev0/img/fsf-logo.png" /></a></h4>
6aec3aeb 552 <p>Copyright &copy; 2014 <a href="https://u.fsf.org/ys">Free Software Foundation</a>, Inc. <a href="https://my.fsf.org/donate/privacypolicy.html">Privacy Policy</a>. <a href="https://u.fsf.org/yr">Join.</a></p>
2ba31b7b 553 <p><em>Version 3.0. <a href="http://agpl.fsf.org/emailselfdefense.fsf.org/edward/CURRENT/edward.tar.gz">Source code of Edward reply bot by Josh Drake &lt;zamnedix@gnu.org&gt; available under the GNU General Public License.</a></em></p>
0db2fdd1 554<p>The images on this page are under a <a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 license (or later version)</a>, and the rest of it is under a <a href="https://creativecommons.org/licenses/by-sa/4.0">Creative Commons Attribution-ShareAlike 4.0 license (or later version)</a>. &mdash; <a href="http://www.gnu.org/licenses/license-list.html#OtherLicenses">Why these licenses?</a></p>
d325c924 555 <p>Download the source package for <a href="emailselfdefense_source.zip">this guide</a>. Fonts used in the guide &amp; infographic: <a href="https://www.google.com/fonts/specimen/Dosis">Dosis</a> by Pablo Impallari, <a href="http://www.google.com/fonts/specimen/Signika">Signika</a> by Anna Giedry&#347;, <a href="http://www.google.com/fonts/specimen/Archivo+Narrow">Archivo Narrow</a> by Omnibus-Type, <a href="http://www.thegopherarchive.com/gopher-files-hacks-pxl2000-119351.htm">PXL-2000</a> by Florian Cramer.</p>
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556 <p>
557 <a href="//weblabels.fsf.org/emailselfdefense.fsf.org/"
558 rel="jslicense">
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560 </a>
561 </p>
6c495e2d 562 </div><!-- /#copyright -->
7e60af07 563 <p class="credits">
2013b270 564 Infographic and guide design by <a rel="external" href="http://jplusplus.org"><strong>Journalism++</strong> <img src="//static.fsf.org/nosvn/enc-dev0/img/jplusplus.png" alt="Journalism++" /></a>
7e60af07 565 </p><!-- /.credits -->
bdf319c4 566 </div>
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567 </footer><!-- End #footer -->
568
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569 <script src="//static.fsf.org/nosvn/enc-dev0/js/jquery-1.11.0.min.js"></script>
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ad76913c 571
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572 <!-- Piwik -->
573 <script type="text/javascript">
574 /*
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584
585 This program is distributed in the hope that it will be useful,
586 but WITHOUT ANY WARRANTY; without even the implied warranty of
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596 var _paq = _paq || [];
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603 (function() {
604 var u=(("https:" == document.location.protocol) ? "https" : "http") + "://piwik.fsf.org/";
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612 </body>
613</html>