Merge branch 'master' of vcs.fsf.org:enc
[enc-live.git] / en / windows.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 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." />
4f3e4963 9
c1ea5176
TG
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" />
4f3e4963
AIC
12 <link rel="shortcut icon" href="//static.fsf.org/nosvn/enc-dev0/img/favicon.ico" />
13
14 </head>
15 <body>
16<!--
17 <nav class="nav">
18 <div>
19 <ul class="lang">
20 <li class="help"><a href="http://libreplanet.org/wiki/GPG_guide">Translate this guide!</a></li>
21 </ul>
22 </div>
23 </nav>
24-->
25
26<!-- ~~~~~~~~~ GnuPG Header and introduction text ~~~~~~~~~ -->
4f3e4963 27
c0fa1642 28 <header class="row" id="header">
4f3e4963 29 <div>
c0fa1642
ZR
30 <h1>Email Self-Defense</h1>
31
32 <!-- Language list for browsers that do not have JS enabled -->
c7ea9048
ZR
33 <ul id="languages" class="os">
34 <li><a class="current" href="/en">english</a></li>
8fd4a69a 35 <!--<li><a href="/es">español</a></li>-->
c7ea9048
ZR
36 <li><a href="/fr">français</a></li>
37 <li><a href="/de">deutsch</a></li>
989d24e8 38 <!--<li><a href="/it">italiano</a></li>-->
c7ea9048
ZR
39 <li><a href="/pt-br">português do Brasil</a></li>
40 <li><a href="/tr">türkçe</a></li>
89647b8f 41 <!--<li><a href="/ro">română</a></li>-->
c7ea9048 42 <li><a href="/ru">русский</a></li>
8fd4a69a 43 <!--<li><a href="/ml">മലയാളം</a></li>-->
d27e43aa 44 <!--<li><a href="/ko">한국어</a></li>-->
c7ea9048 45 <li><a href="/ja">日本語</a></li>
3085b76a 46 <!--<li><a href="/el">ελληνικά</a></li>-->
8f538927 47 <!--<li><a href="/ar">العربية</a></li>-->
c7ea9048 48 </ul>
c7ea9048 49
c0fa1642
ZR
50 <ul id="menu" class="os">
51 <li class="spacer">
fd188212 52 <a href="index.html">GNU/Linux</a>
c0fa1642
ZR
53 </li>
54 <li>
55 <a href="mac.html">Mac OS</a>
56 </li>
57 <li>
fd188212 58 <a href="windows.html" class="current">Windows</a>
c0fa1642
ZR
59 </li>
60 <li class="spacer">
61 <a href="https://fsf.org/share?u=https://u.fsf.org/zb&amp;t=Email encryption for everyone via %40fsf">
62 #EmailSelfDefense
63 </a>
64 </li>
65 </ul>
4f3e4963
AIC
66
67 <!-- ~~~~~~~~~ FSF Introduction ~~~~~~~~~ -->
68 <div id="fsf-intro">
c1ea5176 69 <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>
b3d5c595 70 <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 heavily promote tools like this in-person and online, to help as many people as possible take the first step towards using free software to protect their privacy. Can you make a donation or become a member to help us achieve this goal?</strong></p></span>
4f3e4963 71
c1ea5176 72 <p><a href="https://crm.fsf.org/civicrm/contribute/transact?reset=1&id=14&pk_campaign=esd&pk_kwd=guide_donate"><img alt="Donate" src="//static.fsf.org/nosvn/enc-dev0/img/en/donate.png"/></a> <a href="https://u.fsf.org/yr"><img alt="Join now" src="//static.fsf.org/nosvn/enc-dev0/img/en/join.png"/></a></p>
0a225228 73
4f3e4963
AIC
74 </div><!-- End #fsf-intro -->
75
76 <!-- ~~~~~~~~~ Guide Introduction ~~~~~~~~~ -->
77 <div class="intro">
f99326cd 78 <p>
de0ab142 79 <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 80 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
81
82<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>
83
8015decf 84<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 85
0a225228 86 </div>
4f3e4963
AIC
87 </div>
88 </header><!-- End #header -->
89
6c673e6f
ZR
90<!-- ~~~~~~~~~ Section 1: Get the pieces ~~~~~~~~~ -->
91 <section class="row" id="section1">
92 <div>
4f3e4963 93 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
6c673e6f 94 <div class="section-intro">
6c673e6f 95 <h2><em>#1</em> Get the pieces</h2>
81e841e8 96 <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). 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 97 <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>
8ab87065 98 <p>If you already have one of these, you can skip to <a href="#step-1b">Step 1.b</a>.</p>
6c673e6f
ZR
99 </div><!-- End .section-intro -->
100
101 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
102 <div id="step-1a" class="step">
103 <div class="sidebar">
de0ab142 104 <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
105 </div><!-- /.sidebar -->
106 <div class="main">
66a99343 107 <h3><em>Step 1.a</em> Setup your email program with your email account (if it isn't already)</h3>
6c673e6f 108 <p>Open your email program and follow the wizard that sets it up with your email account.</p>
0a225228 109
6c673e6f
ZR
110 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
111 <div class="troubleshooting">
112 <h4>Troubleshooting</h4>
113 <dl>
114 <dt>What's a wizard?</dt>
115 <dd>A wizard is a series of windows that pop up to make it easy to get something done on a computer, like installing a program. You click through it, selecting options as you go.</dd>
a60a6e36
ZR
116 <dt>My email program can't find my account or isn't downloading my mail</dt>
117 <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
118 <dt class="feedback">Don't see a solution to your problem?</dt>
119 <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
120 </dl>
121 </div><!-- /.troubleshooting -->
122
123 </div><!-- End .main -->
124 </div><!-- End #step1-a .step -->
125
256d4473 126<!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
6c673e6f 127 <div id="step-1b" class="step">
0a225228 128
256d4473 129 <div class="main">
ea15f40d 130 <h3><em>Step 1.b</em> Get GnuPG by downloading GPG4Win</h3>
0a225228 131 <p>GPG4Win is a software package that includes GnuPG. <a href="http://files.gpg4win.org/gpg4win-2.2.1.exe">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
132
133 </div><!-- End .main -->
134 </div><!-- End #step1-b .step -->
135
136 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
137 <div id="step-1c" class="step">
bb28ee32 138 <div class="sidebar">
4f3e4963 139 <ul class="images">
242aedb3 140 <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>
141 <li><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/step1b-02-search.png" alt="Step 1.C: Search Add-ons" /></li>
142 <li><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/step1b-03-install.png" alt="Step 1.C: Install Add-ons" /></li>
4f3e4963
AIC
143 </ul>
144 </div><!-- /.sidebar -->
6c673e6f 145 <div class="main">
256d4473 146 <h3><em>Step 1.c</em> Install the Enigmail plugin for your email program</h3>
6c673e6f
ZR
147 <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>
148 <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>
149 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
150 <div class="troubleshooting">
151 <h4>Troubleshooting</h4>
152 <dl>
bb28ee32
ZR
153 <dt>I can't find the menu.</dt>
154 <dd>In many new email programs, the main menu is represented by an image of three stacked horizontal bars.</dd>
155
4f3e4963
AIC
156 <dt class="feedback">Don't see a solution to your problem?</dt>
157 <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
158 </dl>
159 </div><!-- /.troubleshooting -->
160 </div><!-- End .main -->
256d4473 161 </div><!-- End #step-1c .step -->
6c673e6f
ZR
162 </div>
163 </section><!-- End #section1 -->
6b62e8bb 164
4f3e4963
AIC
165<!-- ~~~~~~~~~ Section 2: Make your keys ~~~~~~~~~ -->
166 <section class="row" id="section2">
167 <div>
168 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
169 <div class="section-intro">
170 <h2><em>#2</em> Make your keys</h2>
bbfaa44d 171 <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
172
173<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>
6b62e8bb 174
4f3e4963
AIC
175<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>
176 </div><!-- End .section-intro -->
177
178 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
179 <div id="step-2a" class="step">
180 <div class="sidebar">
de0ab142 181 <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
182 </div><!-- /.sidebar -->
183 <div class="main">
184 <h3><em>Step 2.a</em> Make a keypair</h3>
185 <p>In your email program's menu, select OpenPGP &rarr; Setup Wizard. 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.</p>
186 <p>On the second screen, titled "Signing," select "No, I want to create per-recipient rules for emails that need to be signed."</p>
187 <p>Use the default options until you reach the screen titled "Create Key".</p>
188 <p>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!</p>
bb28ee32 189 <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>
7b37c2c4 190 <p>When the OpenPGP Confirm 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>. The setup wizard will ask you to move it onto an external device, but that isn't necessary at this moment.</p>
6b62e8bb 191
4f3e4963
AIC
192 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
193 <div class="troubleshooting">
194 <h4>Troubleshooting</h4>
195 <dl>
196 <dt>I can't find the OpenPGP menu.</dt>
197 <dd>In many new email programs, the main menu is represented by an image of three stacked horizontal bars. OpenPGP may be inside a section called Tools.</dd>
0a225228 198
4f3e4963
AIC
199 <dt class="feedback">Don't see a solution to your problem?</dt>
200 <dd class="feedback">Please let us know on the <a href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback page</a>.</dd>
201 </dl>
202 </div><!-- /.troubleshooting -->
203 </div><!-- End .main -->
204 </div><!-- End #step-2a .step -->
205 <div id="step-2b" class="step">
206 <div class="main">
207 <h3><em>Step 2.b</em> Upload your public key to a keyserver</h3>
208 <p>In your email program's menu, select OpenPGP &rarr; Key Management.</p>
209<p>Right click on your key and select Upload Public Keys to Keyserver. Use the default keyserver in the popup.</p>
7a3d8912 210<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
211 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
212 <div class="troubleshooting">
213 <h4>Troubleshooting</h4>
214 <dl>
215 <dt>The progress bar never finishes</dt>
66a99343 216 <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
ZR
217<dt>My key doesnt appear in the list</dt>
218 <dd>Try checking Show Default Keys.</dd>
a60a6e36 219
4f3e4963
AIC
220 <dt class="feedback">Don't see a solution to your problem?</dt>
221 <dd class="feedback">Please let us know on the <a href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback page</a>.</dd>
bb28ee32 222
4f3e4963
AIC
223 </dl>
224 </div><!-- /.troubleshooting -->
225
bb28ee32 226
4f3e4963
AIC
227
228 </div><!-- End .main -->
229 </div><!-- End #step-2a .step -->
548ae59b
ZR
230 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
231 <div id="terminology" class="step">
232 <div class="main">
233 <h3>GnuPG, OpenPGP, what?</h3>
234 <p>You're using a program called GnuPG, but the menu in your email program is called OpenPGP. Confusing, right? In general, the terms GnuPG, GPG, GNU Privacy Guard, OpenPGP and PGP are used interchangeably, though they all have slightly different meanings.</p>
235 </div><!-- End .main -->
236 </div><!-- End #terminology.step-->
4f3e4963
AIC
237 </div>
238 </section><!-- End #section2 -->
239
240<!-- ~~~~~~~~~ Section 3: Try it out ~~~~~~~~~ -->
241 <section class="row" id="section3">
242 <div>
243 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
244 <div class="section-intro">
245 <h2><em>#3</em> Try it out!</h2>
b3d5c595 246 <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
247 </div><!-- End .section-intro -->
248
249 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
250 <div id="step-3a" class="step">
251 <div class="sidebar">
de0ab142 252 <p><img src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/section3-try-it-out.png" alt="Try it out." /></p>
4f3e4963
AIC
253 </div><!-- /.sidebar -->
254 <div class="main">
b3d5c595 255 <h3><em>Step 3.a</em> Send Edward your public key</h3>
4f3e4963
AIC
256 <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 OpenPGP &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>
257
fd188212 258<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, then hit send.</p>
4f3e4963 259
b3d5c595 260<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>
4f3e4963
AIC
261 </div><!-- End .main -->
262 </div><!-- End #step-3b .step -->
263
264 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
265 <div id="step-3b" class="step">
266 <div class="main">
267 <h3><em>Step 3.b</em> Send a test encrypted email</h3>
b3d5c595 268 <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. Don't send it yet.</p>
941218c0 269 <p>Click the icon of the key in the bottom right of the composition window (it should turn yellow). This tells Enigmail to encrypt the email.</p>
7b37c2c4 270 <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 271 <p>Click Send. Enigmail will pop up a window that says "Recipients not valid, not trusted or not found."</p>
4f3e4963 272
357dc69d 273 <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 274
b3d5c595 275 <p>Now you are back at the "Recipients not valid, not trusted or not found" screen. Select Edward's key from the list and click Ok. If the message doesn't send automatically, you can hit send now.</p>
4f3e4963
AIC
276 <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ -->
277 <div class="troubleshooting">
278 <h4>Troubleshooting</h4>
279 <dl>
b3d5c595 280 <dt>Enigmail can't find Edward's key</dt>
4f3e4963
AIC
281 <dd>Close the pop-ups that have appeared since you clicked. 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>
282 <dt class="feedback">Don't see a solution to your problem?</dt>
283 <dd class="feedback">Please let us know on the <a href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback page</a>.</dd>
284 </dl>
285 </div><!-- /.troubleshooting -->
286 </div><!-- End .main -->
287 </div><!-- End #step-3b .step -->
288
289 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
290 <div id="step-headers_unencrypted" class="step">
291 <div class="main">
6e1b0fa2 292 <h3><em>Important:</em> Security tips</h3>
81e841e8 293 <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>
6e1b0fa2 294<p>It's also good practice to click the key icon in your email composition window <strong>before</strong> you start to write. Otherwise, your email client could save an unencrypted draft on the mail server, potentially exposing it to snooping.</p>
4f3e4963
AIC
295 </div><!-- End .main -->
296 </div><!-- End #step-headers_unencrypted .step-->
297
298
299 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
300 <div id="step-3c" class="step">
301 <div class="main">
302 <h3><em>Step 3.c</em> Receive a response</h3>
b3d5c595
ZR
303 <p>When Edward receives your email, he will use his private key to decrypt it, then fetch your public key from a keyserver and use it to encrypt a response to you.</p>
304 <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>
305 <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>
306 <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>
307 <p>Notice the bar that Enigmail shows you above the message, with information about the status of Edward's key.</p>
4f3e4963
AIC
308 </div><!-- End .main -->
309 </div><!-- End #step-3c .step -->
310
311<!-- STEP 3D IS COMMENTED OUT UNTIL WE FIND A WAY TO VALIDATE SIGNATURES
312 <div id="step-3d" class="step">
313 <div class="main">
314 <h3><em>Step 3.d</em> Send a test signed email to a friend</h3>
315 <p>Write a new email in your email program, addressed to a friend. If you want, tell them about this guide!</p>
316 <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>
317 <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>
318 </div>
319 </div>-->
320 </div>
321 </section><!-- End #section3 -->
322
323
b3d5c595 324
4f3e4963
AIC
325<!-- ~~~~~~~~~ Section 4: Learn the Web of Trust ~~~~~~~~~ -->
326 <section class="row" id="section4">
327 <div>
328 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
329 <div class="section-intro">
330 <h2><em>#4</em> Learn the Web of Trust</h2>
b0ce405b 331 <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 332
66a99343 333<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 334
2334cfdb 335<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 OpenPGP &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 336
2334cfdb 337<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 338
bb28ee32 339
4f3e4963
AIC
340 </div><!-- End .section-intro -->
341
342 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
343 <div id="step-4a" class="step">
344 <div class="sidebar">
de0ab142 345 <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
346 </div><!-- /.sidebar -->
347 <div class="main">
348 <h3><em>Step 4.a</em> Sign a key</h3>
349 <p>In your email program's menu, go to OpenPGP &rarr; Key Management.</p>
b3d5c595 350 <p>Right click on Edward's public key and select Sign Key from the context menu.</p>
66a99343
ZR
351 <p>In the window that pops up, select "I will not answer" and click ok.</p>
352 <p>In your email program's menu, go to OpenPGP &rarr; Key Management &rarr; Keyserver &rarr; Upload Public Keys and hit ok.</p>
b3d5c595 353 <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
354
355
bb28ee32 356 <!--<div id="pgp-pathfinder">
4f3e4963
AIC
357 <form enctype="application/x-www-form-urlencoded" action="/mk_path.cgi" method="get">
358 <p><strong>From:</strong> <input type="text" placeholder="xD41A008" name="FROM"></p>
359 <p><strong>To:</strong> <input type="text" placeholder="50BD01x4" name="TO"></p>
360 <p class="buttons"><input type="submit" value="trust paths" name="PATHS"> <input type="reset" value="reset" name=".reset"></p>
361 </form>
362 </div><!-- End #pgp-pathfinder -->
363
364 </div><!-- End .main -->
365 </div><!-- End #step-4a .step -->
366 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
367 <div id="step-sign_real_keys" class="step">
368 <div class="main">
369 <h3><em>Important:</em> check people's identification before signing their keys</h3>
19d4fe06 370 <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
371 </div><!-- End .main -->
372 </div><!-- End #step-sign_real_keys .step-->
373
374
375
376 </div>
377 </section><!-- End #section4 -->
378
379<!-- ~~~~~~~~~ Section 5: Use it well ~~~~~~~~~ -->
380 <section id="section5" class="row">
381 <div>
382 <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ -->
383 <div class="section-intro">
384 <h2><em>#5</em> Use it well</h2>
385<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>
386 </div><!-- End .section-intro -->
387
388 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
389 <div id="step-5a" class="step">
390 <div class="sidebar">
de0ab142 391 <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
392 </div><!-- /.sidebar -->
393 <div class="main">
394 <h3>When should I encrypt?</h3>
395
66a99343 396 <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 397
bb28ee32 398<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 399
4f3e4963
AIC
400 </div><!-- End .main -->
401 </div><!-- End #step-5a .step -->
402
403 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
404 <div id="step-5b" class="step">
405 <div class="sidebar">
de0ab142 406 <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
407 </div><!-- /.sidebar -->
408 <div class="main">
bb28ee32 409 <h3><em>Important:</em> Be wary of invalid keys</h3>
40e65992 410 <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>
b3d5c595 411 <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 OpenPGP at the top, which most likely says "OpenPGP: Part of this message encrypted."</p>
4f3e4963
AIC
412<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>
413 </div><!-- End .main -->
414 </div><!-- End #step-5b .step -->
415
416 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
417 <div id="step-5c" class="step">
418 <div class="main">
419 <h3>Copy your revocation certificate to somewhere safe</h3>
66a99343
ZR
420 <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>
421<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
422 </div><!-- End .main -->
423 </div><!-- End #step-5c .step -->
424
425 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ -->
426 <div id="step-lost_key" class="step">
427 <div class="main">
428 <h3><em>Important:</em> act swiftly if someone gets your private key</h3>
bb28ee32 429 <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
430 </div><!-- End .main -->
431 </div><!-- End #step-lost_key .step-->
432
0a225228 433 <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~
4f3e4963
AIC
434 <div id="step-5d" class="step">
435 <div class="main">
b0ce405b 436 <h3>Make your public key part of your online identity</h3>
be23bf7b 437 <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 438
be23bf7b 439<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 440 </div><!-- End .main
4f3e4963
AIC
441 </div><!-- End #step-5d .step-->
442
443
444 </div>
445 </section><!-- End #section5 -->
446
447<!-- ~~~~~~~~~ Section 6: Next steps ~~~~~~~~~ -->
448 <section class="row" id="section6">
132dc8fb 449 <div id="step-click_here" class="step">
bb28ee32 450 <div class="main">
0a225228
DT
451 <h2><a href="next_steps.html">Click here when you're done</a></h2>
452
bb28ee32 453 </div><!-- End .main -->
132dc8fb 454 </div><!-- End #step-click_here .step-->
bb28ee32 455
4f3e4963
AIC
456 </section><!-- End #section6 -->
457
458<!-- ~~~~~~~~~ FAQ ~~~~~~~~~ -->
459<!-- When un-commenting this section go to main.css and search
460 for /* Guide Sections Background */ then add #faq to the desired color
0a225228 461
4f3e4963
AIC
462 <section class="row" id="faq">
463 <div>
464 <div class="sidebar">
465 <h2>FAQ</h2>
466 </div>
467
468 <div class="main">
469 <dl>
470 <dt>My key expired</dt>
471 <dd>Answer coming soon.</dd>
472
473 <dt>Who can read encrypted messages? Who can read signed ones?</dt>
474 <dd>Answer coming soon.</dd>
475
476 <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>
477 <dd>Answer coming soon.</dd>
478 </dl>
479 </div>
480 </div>
481 </section> --><!-- End #faq -->
482
483<!-- ~~~~~~~~~ Footer ~~~~~~~~~ -->
484 <footer class="row" id="footer">
485 <div>
486 <div id="copyright">
c1ea5176 487 <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 488 <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>
cb552487 489 <p><em>Version 2.0. <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 490<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 491 <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
492 <p>
493 <a href="//weblabels.fsf.org/emailselfdefense.fsf.org/"
494 rel="jslicense">
495 JavaScript license information
496 </a>
497 </p>
4f3e4963
AIC
498 </div><!-- /#copyright -->
499 <p class="credits">
500 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>
501 </p><!-- /.credits -->
502 </div>
503 </footer><!-- End #footer -->
504
505 <script src="//static.fsf.org/nosvn/enc-dev0/js/jquery-1.11.0.min.js"></script>
506 <script src="//static.fsf.org/nosvn/enc-dev0/js/scripts.js"></script>
507
508 <!-- Piwik -->
509 <script type="text/javascript">
510 /*
511 @licstart The following is the entire license notice for the
512 JavaScript code in this page.
513
514 Copyright 2014 Matthieu Aubry
515
516 This program is free software: you can redistribute it and/or modify
517 it under the terms of the GNU General Public License as published by
518 the Free Software Foundation, either version 3 of the License, or
519 (at your option) any later version.
520
521 This program is distributed in the hope that it will be useful,
522 but WITHOUT ANY WARRANTY; without even the implied warranty of
523 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
524 GNU General Public License for more details.
525
526 You should have received a copy of the GNU General Public License
527 along with this program. If not, see http://www.gnu.org/licenses/.
528
529 @licend The above is the entire license notice
530 for the JavaScript code in this page.
531 */
532 var _paq = _paq || [];
533 _paq.push(["setDocumentTitle", document.domain + "/" + document.title]);
534 _paq.push(["setCookieDomain", "*.www.fsf.org"]);
535 _paq.push(["setDomains", ["*.www.fsf.org","*.www.fsf.org"]]);
536 _paq.push(["trackPageView"]);
537 _paq.push(["enableLinkTracking"]);
6b62e8bb 538
4f3e4963
AIC
539 (function() {
540 var u=(("https:" == document.location.protocol) ? "https" : "http") + "://piwik.fsf.org/";
541 _paq.push(["setTrackerUrl", u+"piwik.php"]);
542 _paq.push(["setSiteId", "5"]);
543 var d=document, g=d.createElement("script"), s=d.getElementsByTagName("script")[0]; g.type="text/javascript";
544 g.defer=true; g.async=true; g.src=u+"piwik.js"; s.parentNode.insertBefore(g,s);
545 })();
546 </script>
547 <!-- End Piwik Code -->
548 </body>
549</html>