Fixing a typo.
[enc-live.git] / en / mac.html
CommitLineData
4f3e4963
AIC
1<!DOCTYPE html>
2<html>
3 <head>
c1ea5176 4 <meta charset="utf-8" />
0a225228 5
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
TG
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." />
9 <meta name="viewport" content="width=device-width, initial-scale=1" />
10 <link rel="stylesheet" href="//static.fsf.org/nosvn/enc-dev0/css/main.css" />
4f3e4963
AIC
11 <link rel="shortcut icon" href="//static.fsf.org/nosvn/enc-dev0/img/favicon.ico" />
12
13 </head>
14 <body>
15<!--
16 <nav class="nav">
17 <div>
18 <ul class="lang">
19 <li class="help"><a href="http://libreplanet.org/wiki/GPG_guide">Translate this guide!</a></li>
20 </ul>
21 </div>
22 </nav>
23-->
24
25<!-- ~~~~~~~~~ GnuPG Header and introduction text ~~~~~~~~~ -->
4f3e4963 26
c0fa1642 27 <header class="row" id="header">
4f3e4963 28 <div>
c0fa1642
ZR
29 <h1>Email Self-Defense</h1>
30
31 <!-- Language list for browsers that do not have JS enabled -->
c7ea9048
ZR
32 <ul id="languages" class="os">
33 <li><a class="current" href="/en">english</a></li>
c5d213fc 34 <li><a href="/es">español</a></li>
c7ea9048
ZR
35 <li><a href="/fr">français</a></li>
36 <li><a href="/de">deutsch</a></li>
c5d213fc 37 <li><a href="/it">italiano</a></li>
c7ea9048
ZR
38 <li><a href="/pt-br">português do Brasil</a></li>
39 <li><a href="/tr">türkçe</a></li>
c5d213fc 40 <li><a href="/ro">română</a></li>
c7ea9048 41 <li><a href="/ru">русский</a></li>
8fd4a69a 42 <!--<li><a href="/ml">മലയാളം</a></li>-->
d27e43aa 43 <!--<li><a href="/ko">한국어</a></li>-->
c7ea9048 44 <li><a href="/ja">日本語</a></li>
c5d213fc 45 <li><a href="/el">ελληνικά</a></li>
8f538927 46 <!--<li><a href="/ar">العربية</a></li>-->
c7ea9048 47 </ul>
c0fa1642
ZR
48
49 <ul id="menu" class="os">
50 <li class="spacer">
fd188212 51 <a href="index.html">GNU/Linux</a>
c0fa1642
ZR
52 </li>
53 <li>
fd188212 54 <a href="mac.html" class="current">Mac OS</a>
c0fa1642
ZR
55 </li>
56 <li>
57 <a href="windows.html">Windows</a>
58 </li>
59 <li class="spacer">
60 <a href="https://fsf.org/share?u=https://u.fsf.org/zb&amp;t=Email encryption for everyone via %40fsf">
44a50574
DT
61 Share&nbsp;
62 <img src="//static.fsf.org/nosvn/enc-dev0/img/gnu-social.png"
63 class="share-logo" alt="[GNU Social]">&nbsp;
64 <img src="//static.fsf.org/nosvn/enc-dev0/img/pump.io.png"
65 class="share-logo" alt="[Pump.io]">&nbsp;
66 <img src="//static.fsf.org/nosvn/enc-dev0/img/reddit-alien.png"
67 class="share-logo" alt="[Reddit]">&nbsp;
68 <img src="//static.fsf.org/nosvn/enc-dev0/img/hacker-news.png"
69 class="share-logo" alt="[Hacker News]">
c0fa1642
ZR
70 </a>
71 </li>
72 </ul>
4f3e4963
AIC
73
74 <!-- ~~~~~~~~~ FSF Introduction ~~~~~~~~~ -->
75 <div id="fsf-intro">
c1ea5176 76 <h3><a href="http://u.fsf.org/ys"><img alt="Free Software Foundation" src="//static.fsf.org/nosvn/enc-dev0/img/fsf-logo.png" /></a></h3>
d8ced2c3 77 <span style="font-size:125%"><p>We fight for computer users' rights, and promote the development of free (as in freedom) software. Resisting bulk surveillance is very important to us.</p><p><strong>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.</strong></p></span>
4f3e4963 78
45cff628 79 <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>
0a225228 80
4f3e4963
AIC
81 </div><!-- End #fsf-intro -->
82
83 <!-- ~~~~~~~~~ Guide Introduction ~~~~~~~~~ -->
84 <div class="intro">
f99326cd 85 <p>
de0ab142 86 <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>
66a99343 87 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 coded 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>
acd2fb80
ZR
88
89<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>
90
8015decf 91<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. Let's get started!</p>
4f3e4963 92
946f0ee1 93 </div><!-- End .intro -->
0a225228 94
4f3e4963
AIC
95 </div>
96 </header><!-- End #header -->
97
6c673e6f
ZR
98<!-- ~~~~~~~~~ Section 1: Get the pieces ~~~~~~~~~ -->
99 <section class="row" id="section1">
100 <div>
4f3e4963 101 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
6c673e6f 102 <div class="section-intro">
6c673e6f 103 <h2><em>#1</em> Get the pieces</h2>
b3d5c595 104 <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 Mac OS). To defend your freedom as well as protect yourself from surveillance, we recommend you switch to a free software operating system like GNU/Linux. Learn more about free software at <a href="https://u.fsf.org/ys">fsf.org</a>.</p>
66a99343 105 <p>To get started, you'll need a desktop email program installed on your computer. This guide works with free software versions of the Thunderbird email program, and with Thunderbird itself. Email programs are another way to access the same email accounts you can access in a browser (like Gmail), but provide extra features.</p>
97925583 106 <p>If you already have an email program, you can skip to <a href="#step-1b">Step 1.b</a>.</p>
6c673e6f
ZR
107 </div><!-- End .section-intro -->
108
109 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
110 <div id="step-1a" class="step">
111 <div class="sidebar">
de0ab142 112 <p><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/step1a-install-wizard.png" alt="Step 1.A: Install Wizard" /></p>
6c673e6f
ZR
113 </div><!-- /.sidebar -->
114 <div class="main">
97925583
ZR
115 <h3><em>Step 1.a</em> Setup your email program with your email account</h3>
116 <p>Open your email program and follow the wizard (step-by-step walkthrough) that sets it up with your email account.</p>
0a225228 117
6c673e6f
ZR
118 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
119 <div class="troubleshooting">
120 <h4>Troubleshooting</h4>
121 <dl>
97925583
ZR
122 <dt>The wizard doesn't launch</dt>
123 <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>
124 <dt>The wizard can't find my account or isn't downloading my mail</dt>
a60a6e36 125 <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>
4f3e4963
AIC
126 <dt class="feedback">Don't see a solution to your problem?</dt>
127 <dd class="feedback">Please let us know on the <a href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback page</a>.</dd>
6c673e6f
ZR
128 </dl>
129 </div><!-- /.troubleshooting -->
130
131 </div><!-- End .main -->
132 </div><!-- End #step1-a .step -->
133
256d4473 134<!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
6c673e6f 135 <div id="step-1b" class="step">
0a225228 136
256d4473 137 <div class="main">
ea15f40d 138 <h3><em>Step 1.b</em> Get GnuPG by downloading GPGTools</h3>
0a225228 139 <p>GPGTools is a software package that includes GnuPG. <a href="https://releases.gpgtools.org/GPG%20Suite%20-%202013.10.22.dmg">Download</a> and install it, choosing default options whenever asked. After it's installed, you can close any windows that it creates.</p>
256d4473
ZR
140
141 </div><!-- End .main -->
142 </div><!-- End #step1-b .step -->
143
144 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
145 <div id="step-1c" class="step">
bb28ee32 146 <div class="sidebar">
4a601c5a 147 <ul class="images">
242aedb3 148 <li><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/step1b-01-tools-addons.png" alt="Step 1.C: Tools -> Add-ons" /></li>
149 <li><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/step1b-02-search.png" alt="Step 1.C: Search Add-ons" /></li>
150 <li><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/step1b-03-install.png" alt="Step 1.C: Install Add-ons" /></li>
4a601c5a
AIC
151 </ul>
152 </div><!-- /.sidebar -->
6c673e6f 153 <div class="main">
256d4473 154 <h3><em>Step 1.c</em> Install the Enigmail plugin for your email program</h3>
6c673e6f
ZR
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>
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>
1e72473c
ZR
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>
bb28ee32
ZR
163
164 <dt class="feedback">Don't see a solution to your problem?</dt>
4f3e4963 165 <dd class="feedback">Please let us know on the <a href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback page</a>.</dd>
6c673e6f
ZR
166 </dl>
167 </div><!-- /.troubleshooting -->
168 </div><!-- End .main -->
256d4473 169 </div><!-- End #step-1c .step -->
6c673e6f
ZR
170 </div>
171 </section><!-- End #section1 -->
318714a1 172
4f3e4963
AIC
173<!-- ~~~~~~~~~ Section 2: Make your keys ~~~~~~~~~ -->
174 <section class="row" id="section2">
175 <div>
176 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
177 <div class="section-intro">
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>
4f3e4963
AIC
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>
318714a1 182
4f3e4963
AIC
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 decode encrypted emails other people send to you.</p>
184 </div><!-- End .section-intro -->
318714a1 185
4f3e4963
AIC
186 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
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>
4f3e4963
AIC
190 </div><!-- /.sidebar -->
191 <div class="main">
192 <h3><em>Step 2.a</em> Make a keypair</h3>
97925583
ZR
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>
194<ul>
06f59232
ZR
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>
97925583
ZR
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. Don't forget the password, or all this work will be wasted!</li>
199</ul>
bb28ee32 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>
97925583 201 <p>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). You'll learn more about the revocation certificate in <a href="#section5">Section 5</a>.</p>
318714a1 202
4f3e4963
AIC
203 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
204 <div class="troubleshooting">
205 <h4>Troubleshooting</h4>
206 <dl>
97925583
ZR
207 <dt>I can't find the Enigmail menu.</dt>
208 <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>
0a225228 209
4f3e4963
AIC
210 <dt class="feedback">Don't see a solution to your problem?</dt>
211 <dd class="feedback">Please let us know on the <a href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback page</a>.</dd>
212 </dl>
213 </div><!-- /.troubleshooting -->
214 </div><!-- End .main -->
215 </div><!-- End #step-2a .step -->
e155c686
TG
216
217 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
4f3e4963
AIC
218 <div id="step-2b" class="step">
219 <div class="main">
220 <h3><em>Step 2.b</em> Upload your public key to a keyserver</h3>
97925583 221 <p>In your email program's menu, select Enigmail &rarr; Key Management.</p>
4f3e4963 222<p>Right click on your key and select Upload Public Keys to Keyserver. Use the default keyserver in the popup.</p>
7a3d8912 223<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>
4f3e4963
AIC
224 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
225 <div class="troubleshooting">
226 <h4>Troubleshooting</h4>
227 <dl>
97925583 228 <dt>The progress bar never finishes.</dt>
66a99343 229 <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 230<dt>My key doesnt appear in the list</dt>
97925583 231 <dd>Try checking "Display All Keys by Default."</dd>
a60a6e36 232
4f3e4963
AIC
233 <dt class="feedback">Don't see a solution to your problem?</dt>
234 <dd class="feedback">Please let us know on the <a href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback page</a>.</dd>
bb28ee32 235
4f3e4963
AIC
236 </dl>
237 </div><!-- /.troubleshooting -->
4f3e4963 238 </div><!-- End .main -->
d8b88fc2 239 </div><!-- End #step-2b .step -->
e155c686 240
548ae59b
ZR
241 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
242 <div id="terminology" class="step">
243 <div class="main">
244 <h3>GnuPG, OpenPGP, what?</h3>
97925583 245 <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>
548ae59b
ZR
246 </div><!-- End .main -->
247 </div><!-- End #terminology.step-->
97925583
ZR
248
249
4f3e4963
AIC
250 </div>
251 </section><!-- End #section2 -->
252
253<!-- ~~~~~~~~~ Section 3: Try it out ~~~~~~~~~ -->
254 <section class="row" id="section3">
255 <div>
256 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
257 <div class="section-intro">
258 <h2><em>#3</em> Try it out!</h2>
b3d5c595 259 <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>
4f3e4963
AIC
260 </div><!-- End .section-intro -->
261
262 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
263 <div id="step-3a" class="step">
264 <div class="sidebar">
de0ab142 265 <p><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/section3-try-it-out.png" alt="Try it out." /></p>
4f3e4963
AIC
266 </div><!-- /.sidebar -->
267 <div class="main">
b3d5c595 268 <h3><em>Step 3.a</em> Send Edward your public key</h3>
97925583 269 <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>
4f3e4963 270
1dd15497 271<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>
97925583
ZR
272
273<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>
4f3e4963 274
b3d5c595 275<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>
97925583
ZR
276
277<p>When you open Edward's reply, Enigmail may prompt you for your password before using your private key to decrypt it.</p>
4f3e4963 278 </div><!-- End .main -->
d8b88fc2 279 </div><!-- End #step-3a .step -->
4f3e4963
AIC
280
281 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
282 <div id="step-3b" class="step">
283 <div class="main">
284 <h3><em>Step 3.b</em> Send a test encrypted email</h3>
97925583
ZR
285 <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>
286 <p>They key in the bottom right of the window should be yellow, meaning encryption is on. This will be your default from now on.</p>
7b37c2c4 287 <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>
b3d5c595 288 <p>Click Send. Enigmail will pop up a window that says "Recipients not valid, not trusted or not found."</p>
4f3e4963 289
357dc69d 290 <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>
4f3e4963 291
97925583
ZR
292 <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>
293
294<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>
4f3e4963
AIC
295 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
296 <div class="troubleshooting">
297 <h4>Troubleshooting</h4>
298 <dl>
b3d5c595 299 <dt>Enigmail can't find Edward's key</dt>
97925583 300 <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>
4f3e4963
AIC
301 <dt class="feedback">Don't see a solution to your problem?</dt>
302 <dd class="feedback">Please let us know on the <a href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback page</a>.</dd>
303 </dl>
304 </div><!-- /.troubleshooting -->
305 </div><!-- End .main -->
306 </div><!-- End #step-3b .step -->
307
308 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
309 <div id="step-headers_unencrypted" class="step">
310 <div class="main">
6e1b0fa2 311 <h3><em>Important:</em> Security tips</h3>
81e841e8 312 <p>Even if you encrypted 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 they could be read by a surveillance system. When you send attachments, Enigmail will give you an option of whether you want to encrypt them.</p>
97925583 313
4f3e4963
AIC
314 </div><!-- End .main -->
315 </div><!-- End #step-headers_unencrypted .step-->
316
317
318 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
319 <div id="step-3c" class="step">
320 <div class="main">
321 <h3><em>Step 3.c</em> Receive a response</h3>
97925583
ZR
322 <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>
323
b3d5c595
ZR
324 <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>
325 <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>
326 <p>Notice the bar that Enigmail shows you above the message, with information about the status of Edward's key.</p>
4f3e4963
AIC
327 </div><!-- End .main -->
328 </div><!-- End #step-3c .step -->
329
330<!-- STEP 3D IS COMMENTED OUT UNTIL WE FIND A WAY TO VALIDATE SIGNATURES
331 <div id="step-3d" class="step">
332 <div class="main">
333 <h3><em>Step 3.d</em> Send a test signed email to a friend</h3>
334 <p>Write a new email in your email program, addressed to a friend. If you want, tell them about this guide!</p>
335 <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>
336 <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>
337 </div>
338 </div>-->
339 </div>
340 </section><!-- End #section3 -->
341
342
343<!-- ~~~~~~~~~ Section 4: Learn the Web of Trust ~~~~~~~~~ -->
344 <section class="row" id="section4">
345 <div>
346 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
347 <div class="section-intro">
348 <h2><em>#4</em> Learn the Web of Trust</h2>
b0ce405b 349 <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>
4f3e4963 350
66a99343 351<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>
4f3e4963 352
97925583 353<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 354
97925583 355<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 356
bb28ee32 357
4f3e4963 358 </div><!-- End .section-intro -->
318714a1 359
4f3e4963
AIC
360 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
361 <div id="step-4a" class="step">
362 <div class="sidebar">
de0ab142 363 <p><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/section4-web-of-trust.png" alt="Section 4: Web of Trust" /></p>
4f3e4963
AIC
364 </div><!-- /.sidebar -->
365 <div class="main">
366 <h3><em>Step 4.a</em> Sign a key</h3>
97925583 367 <p>In your email program's menu, go to Enigmail &rarr; Key Management.</p>
b3d5c595 368 <p>Right click on Edward's public key and select Sign Key from the context menu.</p>
66a99343 369 <p>In the window that pops up, select "I will not answer" and click ok.</p>
97925583 370 <p>Now you should be back at the Key Management menu. Select Keyserver &rarr; Upload Public Keys and hit ok.</p>
b3d5c595 371 <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>
4f3e4963
AIC
372
373
bb28ee32 374 <!--<div id="pgp-pathfinder">
4f3e4963
AIC
375 <form enctype="application/x-www-form-urlencoded" action="/mk_path.cgi" method="get">
376 <p><strong>From:</strong> <input type="text" placeholder="xD41A008" name="FROM"></p>
377 <p><strong>To:</strong> <input type="text" placeholder="50BD01x4" name="TO"></p>
378 <p class="buttons"><input type="submit" value="trust paths" name="PATHS"> <input type="reset" value="reset" name=".reset"></p>
379 </form>
380 </div><!-- End #pgp-pathfinder -->
381
382 </div><!-- End .main -->
383 </div><!-- End #step-4a .step -->
e155c686 384
4f3e4963
AIC
385 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
386 <div id="step-sign_real_keys" class="step">
387 <div class="main">
388 <h3><em>Important:</em> check people's identification before signing their keys</h3>
19d4fe06 389 <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>
4f3e4963
AIC
390 </div><!-- End .main -->
391 </div><!-- End #step-sign_real_keys .step-->
392
393
394
395 </div>
396 </section><!-- End #section4 -->
397
398<!-- ~~~~~~~~~ Section 5: Use it well ~~~~~~~~~ -->
399 <section id="section5" class="row">
400 <div>
401 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
402 <div class="section-intro">
403 <h2><em>#5</em> Use it well</h2>
404<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>
405 </div><!-- End .section-intro -->
406
407 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
408 <div id="step-5a" class="step">
409 <div class="sidebar">
de0ab142 410 <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>
4f3e4963
AIC
411 </div><!-- /.sidebar -->
412 <div class="main">
413 <h3>When should I encrypt?</h3>
414
66a99343 415 <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>
4f3e4963 416
bb28ee32 417<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 418
4f3e4963
AIC
419 </div><!-- End .main -->
420 </div><!-- End #step-5a .step -->
421
422 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
423 <div id="step-5b" class="step">
424 <div class="sidebar">
de0ab142 425 <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>
4f3e4963
AIC
426 </div><!-- /.sidebar -->
427 <div class="main">
bb28ee32 428 <h3><em>Important:</em> Be wary of invalid keys</h3>
40e65992 429 <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>
97925583 430 <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>
4f3e4963
AIC
431<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>
432 </div><!-- End .main -->
433 </div><!-- End #step-5b .step -->
434
435 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
436 <div id="step-5c" class="step">
437 <div class="main">
438 <h3>Copy your revocation certificate to somewhere safe</h3>
66a99343
ZR
439 <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>
440<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>
4f3e4963
AIC
441 </div><!-- End .main -->
442 </div><!-- End #step-5c .step -->
443
444 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
445 <div id="step-lost_key" class="step">
446 <div class="main">
447 <h3><em>Important:</em> act swiftly if someone gets your private key</h3>
bb28ee32 448 <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>
4f3e4963
AIC
449 </div><!-- End .main -->
450 </div><!-- End #step-lost_key .step-->
451
0a225228 452 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~
4f3e4963
AIC
453 <div id="step-5d" class="step">
454 <div class="main">
b0ce405b 455 <h3>Make your public key part of your online identity</h3>
be23bf7b 456 <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>
726784e1 457
be23bf7b 458<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 459 </div><!-- End .main
97925583 460 </div> End #step-5d .step-->
6b62e8bb
ZR
461
462
4f3e4963
AIC
463 </div>
464 </section><!-- End #section5 -->
6b62e8bb 465
97925583
ZR
466
467
4f3e4963
AIC
468<!-- ~~~~~~~~~ Section 6: Next steps ~~~~~~~~~ -->
469 <section class="row" id="section6">
132dc8fb 470 <div id="step-click_here" class="step">
4f3e4963 471 <div class="main">
c6345aa7 472 <h2><a href="next_steps.html">Great job! Check out the next steps.</a></h2>
0a225228 473
4f3e4963 474 </div><!-- End .main -->
132dc8fb 475 </div><!-- End #step-click_here .step-->
726784e1 476
4f3e4963
AIC
477 </section><!-- End #section6 -->
478
479<!-- ~~~~~~~~~ FAQ ~~~~~~~~~ -->
480<!-- When un-commenting this section go to main.css and search
481 for /* Guide Sections Background */ then add #faq to the desired color
0a225228 482
4f3e4963
AIC
483 <section class="row" id="faq">
484 <div>
485 <div class="sidebar">
486 <h2>FAQ</h2>
487 </div>
488
489 <div class="main">
490 <dl>
491 <dt>My key expired</dt>
492 <dd>Answer coming soon.</dd>
493
494 <dt>Who can read encrypted messages? Who can read signed ones?</dt>
495 <dd>Answer coming soon.</dd>
496
497 <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>
498 <dd>Answer coming soon.</dd>
499 </dl>
500 </div>
501 </div>
502 </section> --><!-- End #faq -->
503
504<!-- ~~~~~~~~~ Footer ~~~~~~~~~ -->
505 <footer class="row" id="footer">
506 <div>
507 <div id="copyright">
c1ea5176 508 <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>
4f3e4963 509 <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>
97925583 510 <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>
d1553a11 511<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>
7b37c2c4 512 <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>
d1553a11
ZR
513 <p>
514 <a href="//weblabels.fsf.org/emailselfdefense.fsf.org/"
515 rel="jslicense">
516 JavaScript license information
517 </a>
518 </p>
4f3e4963
AIC
519 </div><!-- /#copyright -->
520 <p class="credits">
521 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>
522 </p><!-- /.credits -->
523 </div>
524 </footer><!-- End #footer -->
525
526 <script src="//static.fsf.org/nosvn/enc-dev0/js/jquery-1.11.0.min.js"></script>
527 <script src="//static.fsf.org/nosvn/enc-dev0/js/scripts.js"></script>
528
529 <!-- Piwik -->
530 <script type="text/javascript">
531 /*
532 @licstart The following is the entire license notice for the
533 JavaScript code in this page.
534
535 Copyright 2014 Matthieu Aubry
536
537 This program is free software: you can redistribute it and/or modify
538 it under the terms of the GNU General Public License as published by
539 the Free Software Foundation, either version 3 of the License, or
540 (at your option) any later version.
541
542 This program is distributed in the hope that it will be useful,
543 but WITHOUT ANY WARRANTY; without even the implied warranty of
544 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
545 GNU General Public License for more details.
546
547 You should have received a copy of the GNU General Public License
548 along with this program. If not, see http://www.gnu.org/licenses/.
549
550 @licend The above is the entire license notice
551 for the JavaScript code in this page.
552 */
553 var _paq = _paq || [];
554 _paq.push(["setDocumentTitle", document.domain + "/" + document.title]);
555 _paq.push(["setCookieDomain", "*.www.fsf.org"]);
556 _paq.push(["setDomains", ["*.www.fsf.org","*.www.fsf.org"]]);
557 _paq.push(["trackPageView"]);
558 _paq.push(["enableLinkTracking"]);
559
560 (function() {
561 var u=(("https:" == document.location.protocol) ? "https" : "http") + "://piwik.fsf.org/";
562 _paq.push(["setTrackerUrl", u+"piwik.php"]);
563 _paq.push(["setSiteId", "5"]);
564 var d=document, g=d.createElement("script"), s=d.getElementsByTagName("script")[0]; g.type="text/javascript";
565 g.defer=true; g.async=true; g.src=u+"piwik.js"; s.parentNode.insertBefore(g,s);
566 })();
567 </script>
568 <!-- End Piwik Code -->
4f3e4963
AIC
569 </body>
570</html>