Commit | Line | Data |
---|---|---|
bdf319c4 | 1 | <!DOCTYPE html> |
19bce4d7 | 2 | <html lang="en"> |
116f80c3 | 3 | <head> |
19bce4d7 TG |
4 | <meta http-equiv="content-type" content="text/html; charset=utf-8" /> |
5 | <title>Email Self-Defense - a guide to fighting surveillance with GnuPG | |
6 | encryption</title> | |
7 | <meta name="keywords" content="GnuPG, GPG, openpgp, surveillance, privacy, | |
7b83f7f9 | 8 | email, security, GnuPG2" /> |
19bce4d7 TG |
9 | <meta name="description" content="Email surveillance violates our fundamental |
10 | rights and makes free speech risky. This guide will teach you email | |
11 | self-defense in 40 minutes with GnuPG." /> | |
12 | <meta name="viewport" content="width=device-width, initial-scale=1" /> | |
13 | <link rel="stylesheet" href="//static.fsf.org/nosvn/enc-dev0/css/main.css" /> | |
14 | <link rel="shortcut icon" | |
15 | href="//static.fsf.org/nosvn/enc-dev0/img/favicon.ico" /> | |
116f80c3 | 16 | </head> |
19bce4d7 | 17 | |
e59c77da | 18 | <body><iframe src="//static.fsf.org/nosvn/banners/2021fundraiser-spring/" style="width: 100%; height: 150px; display: block; margin: 0; border: 0 none; overflow: hidden;"></iframe> |
19 | <!--<div style="text-align: center; padding: 2.5px; background-color: #a94442; color:#fcf8e3;"><p>Due to Enigmail's PGP functionality being migrated into Icedove and Thunderbird, steps 2 and 3 of the guide are currently out of date.</p><p> Thank you for your patience while we're working on a new round of updates.</p></div>--> | |
0e203e6f | 20 | |
f12cd56f | 21 | <!-- PLACE FUNDRAISER MODAL WINDOW HERE --> |
aa082aba | 22 | |
9ad16fcf MM |
23 | <!-- Begin fsf-modal-window-elem campaign element --> |
24 | <link type="text/css" rel="stylesheet" href="https://static.fsf.org/nosvn/fonts/fa/css/font-awesome.min.css"> | |
25 | <style> | |
26 | #fsf-modal-window-elem-container div { | |
27 | -webkit-box-sizing: border-box; | |
28 | -moz-box-sizing: border-box; | |
29 | box-sizing: border-box; | |
30 | } | |
9980a4ad | 31 | |
9ad16fcf MM |
32 | @media screen and (min-width: 700px) { |
33 | ||
34 | #fsf-modal-window-elem-outer-v-center { | |
35 | display: table; | |
36 | position: absolute; | |
37 | height: 100%; | |
38 | width: 100%; | |
39 | } | |
40 | #fsf-modal-window-elem-inner-v-center { | |
41 | display: table-cell; | |
42 | vertical-align: middle; | |
43 | } | |
44 | ||
45 | #fsf-modal-window-elem { | |
46 | width: 687px; | |
47 | margin-left: auto; | |
48 | margin-right: auto; | |
49 | } | |
50 | ||
51 | #fsf-modal-window-elem-right-column { | |
52 | float: right; | |
53 | width: 280px; | |
54 | padding-left: 20px; | |
55 | color: #491e17; | |
56 | } | |
57 | ||
58 | #fsf-modal-window-elem-left-column { | |
59 | width: 100%; | |
60 | float: left; | |
61 | margin-right: -280px; | |
62 | } | |
63 | ||
64 | #fsf-modal-window-elem-text { | |
65 | margin-right: 280px; | |
66 | } | |
67 | } | |
68 | ||
69 | @media screen and (max-width: 699px) { | |
70 | ||
71 | #fsf-modal-window-elem { | |
72 | ||
73 | -ms-box-orient: horizontal; | |
74 | display: -webkit-box; | |
75 | display: -moz-box; | |
76 | display: -ms-flexbox; | |
77 | display: -moz-flex; | |
78 | display: -webkit-flex; | |
79 | display: flex; | |
80 | ||
81 | -webkit-flex-flow: row wrap; | |
82 | flex-flow: row wrap; | |
83 | } | |
84 | ||
85 | #fsf-modal-window-elem { | |
86 | width: 80vw; | |
87 | margin-left: 10vw; | |
88 | margin-right: 10vw; | |
89 | margin-top: 40px; | |
90 | margin-bottom: 40px; | |
91 | } | |
92 | ||
93 | #fsf-modal-window-elem-right-column { | |
94 | width: 100%; | |
95 | order: 1; | |
96 | } | |
97 | ||
98 | #fsf-modal-window-elem-left-column { | |
99 | width: 100%; | |
100 | order: 2; | |
101 | } | |
102 | ||
103 | #fsf-modal-window-elem-text { | |
104 | margin-top: 20px; | |
105 | } | |
106 | } | |
107 | ||
108 | @media screen and (max-width: 360px) { | |
109 | .long-button-text { | |
110 | font-size: 25px !important; | |
111 | } | |
112 | } | |
113 | ||
114 | #fsf-modal-window-elem-container { | |
115 | position: fixed; | |
116 | z-index: 10000; | |
117 | left: 0; | |
118 | top: 0; | |
119 | width: 100%; | |
120 | height: 100%; | |
121 | overflow: auto; | |
122 | background-color: rgba(0,0,0,0.8); | |
123 | ||
124 | font-weight: normal; | |
125 | } | |
126 | ||
127 | #fsf-modal-window-elem a, a:active, a:focus { | |
128 | outline: none; | |
129 | border-bottom: 0px; | |
130 | } | |
131 | ||
132 | #fsf-modal-window-elem { | |
133 | overflow: auto; | |
134 | padding: 20px; | |
135 | border-style: solid; | |
136 | border-width: 5px; | |
137 | border-color: #3a5b2c; | |
138 | border-radius: 20px; | |
139 | box-shadow: 0px 0px 10px #111111; | |
140 | background-color: #fdf7b9; | |
141 | } | |
142 | ||
143 | #fsf-modal-window-elem-header { | |
144 | width: 100%; | |
145 | } | |
146 | ||
147 | #fsf-modal-window-elem-header h2 { | |
148 | font-family: sans-serif,"Helvetica",Arial; | |
149 | font-weight: bold; | |
150 | font-size: 24px; | |
151 | color: #002047; | |
152 | /* text-shadow: 0px 0px 8px #00378c; */ | |
153 | padding-bottom: 20px; | |
154 | margin-top: 0px; | |
155 | margin-bottom: 0px; | |
156 | border: none; | |
157 | } | |
158 | ||
159 | #fsf-modal-window-elem-close-button { | |
160 | float: right; | |
161 | height: 40px; | |
162 | margin-right: -20px; | |
163 | margin-top: -20px; | |
164 | padding: 11px; | |
165 | color: #888; | |
166 | cursor: pointer; | |
167 | } | |
168 | ||
169 | #fsf-modal-window-elem-close-button:hover { | |
170 | color: #aaf; | |
171 | } | |
172 | ||
173 | #fsf-modal-window-elem-right-column { | |
174 | text-align: center; | |
175 | -webkit-user-select: none; | |
176 | -moz-user-select: none; | |
177 | -ms-user-select: none; | |
178 | user-select: none; | |
179 | } | |
180 | ||
181 | #fsf-modal-window-elem-buttons div { | |
182 | height:53.333px; | |
183 | line-height: 53.333px; | |
184 | margin-left:auto; | |
185 | margin-right:auto; | |
186 | display:block; | |
187 | } | |
188 | ||
189 | #fsf-modal-window-elem-buttons { | |
190 | } | |
191 | ||
192 | #fsf-modal-window-elem-buttons a { | |
193 | width: 100%; | |
194 | display: block; | |
195 | text-align: center; | |
196 | font-size:35px; | |
197 | color:#002047; | |
198 | text-decoration: none; | |
199 | font-family: sans-serif,"Helvetica",Arial; | |
200 | font-weight: normal; | |
201 | } | |
202 | ||
203 | #fsf-modal-window-elem-maybe-later { | |
204 | margin-top: 5px; | |
205 | margin-bottom: -5px; | |
206 | } | |
207 | ||
208 | #fsf-modal-window-elem-maybe-later a { | |
209 | color: #367c93; | |
210 | line-height: 20px; | |
211 | text-decoration: none; | |
212 | cursor: pointer; | |
213 | font-weight: normal; | |
214 | font-family: sans-serif,"Helvetica",Arial; | |
215 | font-size: 16px; | |
216 | } | |
217 | ||
218 | #fsf-modal-window-elem-text { | |
219 | } | |
220 | ||
221 | #fsf-modal-window-elem-text a { | |
222 | color: #002047; | |
223 | font-weight: 700; | |
224 | text-decoration: none; | |
225 | } | |
226 | ||
227 | #fsf-modal-window-elem-text a:hover { | |
228 | color: #fd8e1b; | |
229 | } | |
230 | ||
231 | #fsf-modal-window-elem-text a:focus { | |
232 | color: #fd8e1b; | |
233 | } | |
234 | ||
235 | #fsf-modal-window-elem-text a:active { | |
236 | color: #ffac30; | |
237 | } | |
238 | ||
239 | #fsf-modal-window-elem-text p { | |
240 | font-family: sans-serif,"Helvetica",Arial; | |
241 | font-size: 17px; | |
242 | font-weight: normal; | |
243 | margin: 0px 0px 10px 0px; | |
244 | line-height: 20px; | |
245 | color: #002047; | |
246 | /* text-shadow: 0px 0px 8px #004067;*/ | |
247 | } | |
248 | </style> | |
249 | <div id="fsf-modal-window-elem-container" style="display: none;"> | |
250 | <div id="fsf-modal-window-elem-outer-v-center"> | |
251 | <div id="fsf-modal-window-elem-inner-v-center"> | |
252 | <div id="fsf-modal-window-elem"> | |
253 | <div id="fsf-modal-window-elem-header"> | |
254 | <div id="fsf-modal-window-elem-close-button" onclick="//fsfModalWindowElemDontShowForAWhile();"> | |
255 | <i class="fa fa-close">​</i> | |
256 | </div> | |
257 | <h2>Move freedom forward with a donation to the FSF!</h2> | |
258 | </div> | |
259 | <div id="fsf-modal-window-elem-left-column"> | |
260 | <div id="fsf-modal-window-elem-text"> | |
261 | ||
262 | <p> | |
263 | ||
264 | Free software has become a vital global movement for user autonomy. | |
265 | ||
266 | </p> | |
267 | ||
268 | <p> | |
269 | ||
270 | Without free software, we cannot and will not have a free society. <b>We rely on donations from people like you, who use and appreciate our work.</b> Fuel our journey forward, and help us reach our ultimate destination: full software freedom. | |
271 | ||
272 | </p> | |
273 | ||
274 | <p> | |
275 | ||
276 | Support us with a donation today, and help us achieve our summer financial goal of USD 50,000 before July 16. | |
277 | ||
278 | </p> | |
279 | ||
280 | <p><span id="fsf-modal-window-text-link"><a href="https://www.fsf.org/appeal?mtm_campaign=summer21&mtm_kwd=learn-more&mtm_source=modal">Read more</a> | <a href="https://my.fsf.org/join?mtm_campaign=summer21&mtm_source=modal">Join</a></span></p> | |
281 | ||
282 | </div> | |
283 | </div> | |
284 | <div id="fsf-modal-window-elem-right-column"> | |
285 | <div id="fsf-modal-window-elem-buttons" style="border-radius: 20px; box-shadow: 0px 0px 5px #0c2b2b;"> | |
286 | <div style="background-color:#8c9e1e; border-top-right-radius: 20px; border-top-left-radius: 20px;"> | |
287 | <a style="text-shadow: 0px 0px 6px #d5e471;" href="https://my.fsf.org/join?mtm_campaign=summer21&mtm_source=modal" onclick="//fsfModalWindowElemFollowedLink();"><i class="fa fa-check-circle"> </i>Join</a> | |
288 | </div> | |
289 | ||
290 | <div style="background-color:#fdf7b9"> | |
291 | <a href="https://my.fsf.org/renew?mtm_campaign=summer21&mtm_source=modal" onclick="//fsfModalWindowElemFollowedLink();"><i class="fa fa-refresh"> </i>Renew</a> | |
292 | </div> | |
293 | ||
294 | <div style="background-color:#3a5b2c; border-bottom-right-radius: 20px; border-bottom-left-radius: 20px; margin-bottom: 2px"> | |
295 | <a style="text-shadow: 0px 0px 6px #c2d831;" href="https://my.fsf.org/donate?mtm_campaign=summer21&mtm_source=modal" onclick="//fsfModalWindowElemFollowedLink();"><i class="fa fa-money"> </i>Donate</a> | |
296 | </div> | |
297 | </div> | |
298 | </div> | |
299 | </div> | |
300 | </div> | |
301 | </div> | |
302 | <script> | |
303 | // @license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-3.0 | |
304 | ||
305 | // Licensed GPLv3-or-later by Andrew Engelbrecht | |
306 | ||
307 | var startTime, endTime, switchTextTime; | |
308 | ||
309 | startTime = new Date('2021-06-15T04:00:00Z'); | |
310 | switchTextTime = new Date('2021-08-17T04:00:00Z'); | |
311 | // endTime is unused. | |
312 | endTime = new Date('2021-08-17T04:00:00Z'); | |
313 | ||
314 | // Possibly switch the text that is displayed in the modal window, depending | |
315 | // upon the current date. | |
316 | function fsfModalWindowElemMaybeSwitchText () { | |
317 | ||
318 | var now; | |
319 | ||
320 | now = new Date(); | |
321 | if (now.getTime() < switchTextTime.getTime()) { | |
322 | return; // Do not switch the text | |
323 | } | |
324 | ||
325 | // Switch text | |
326 | document.getElementById("fsf-modal-window-elem-text").innerHTML =' \ | |
327 | \ | |
328 | <p>Free software has become a vital global movement for user autonomy.<\/p><p>Without free software, we cannot and will not have a free society. <b>We rely on donations from people like you, who use and appreciate our work.<\/b> Fuel our journey forward, and help us reach our ultimate destination: full software freedom.<\/p><p>Support us with a donation today, and help us achieve our summer financial goal of USD 50,000 before July 16.<\/p> \ | |
329 | \ | |
330 | <p><span id="fsf-modal-window-text-link"><a href="https://www.fsf.org/appeal?mtm_campaign=summer21&mtm_kwd=learn-more&mtm_source=modal">Read more<\/a> | <a href="https://my.fsf.org/join?mtm_campaign=summer21&mtm_source=modal">Join<\/a><\/span><\/p>'; | |
331 | } | |
332 | ||
333 | // Show fsf-modal-window-elem if it has not been previously closed by | |
334 | // the user, nor recently hit "maybe later", | |
335 | // and the campaign is still happening | |
336 | function fsfModalWindowElemMaybeShow () { | |
337 | ||
338 | var pattern, noShowFsfModalWindowElementP, now; | |
339 | ||
340 | // See if cookie says not to show element | |
341 | pattern = /showFsfSpring2021FundraiserModalWindowElementP\s*=\s*false/; | |
342 | noShowFsfModalWindowElementP = pattern.test(document.cookie); | |
343 | ||
344 | //// Uncomment here to enable modal window hiding | |
345 | if (!noShowFsfModalWindowElementP) { | |
346 | setTimeout(function () { | |
347 | // display the element | |
348 | document.getElementById("fsf-modal-window-elem-container").style.display="block"; | |
349 | }, 0); | |
350 | } | |
351 | } | |
352 | ||
353 | // Call this first to set the proper text. | |
354 | fsfModalWindowElemMaybeSwitchText(); | |
355 | // Check if appeal is the url. | |
356 | if (window.location.href.indexOf("appeal") == -1) { | |
357 | // Call this right away to avoid flicker. | |
358 | fsfModalWindowElemMaybeShow(); | |
359 | } | |
360 | ||
361 | // Get the time `plusDays` in the future. | |
362 | // This can be a fraction. | |
363 | function daysInFuture (plusDays) { | |
364 | var now, future; | |
365 | ||
366 | now = new Date(); | |
367 | future = new Date(now.getTime() + Math.floor(1000 * 60 * 60 * 24 * plusDays)); | |
368 | return future.toGMTString(); | |
369 | } | |
370 | ||
371 | // Hide the fsf-modal-window-elem | |
372 | function fsfModalWindowElemHide () { | |
373 | document.getElementById("fsf-modal-window-elem-container").style.display="none"; | |
374 | } | |
375 | ||
376 | // Optionally hide elem and set a cookie to keep the fsf-modal-window-elem hidden for the next `forDays`. | |
377 | function fsfModalWindowElemDontShowForDays (forDays, hideNow) { | |
378 | if (hideNow === true) { | |
379 | fsfModalWindowElemHide(); | |
380 | } | |
381 | //document.cookie = "showFsfSpring2021FundraiserModalWindowElementP=false; path=/; domain=.fsf.org; expires=" + daysInFuture(forDays); | |
382 | document.cookie = "showFsfSpring2021FundraiserModalWindowElementP=false; path=/; SameSite=Strict; Secure; expires=" + daysInFuture(forDays); | |
383 | } | |
384 | ||
385 | // Hide the element from now to two weeks after closing it | |
386 | function fsfModalWindowElemDontShowForAWhile () { | |
387 | fsfModalWindowElemDontShowForDays(7, true); | |
388 | } | |
389 | ||
390 | // Keep the element visible for now, but do not show it for a while | |
391 | function fsfModalWindowElemFollowedLink () { | |
392 | fsfModalWindowElemDontShowForDays(14, false); | |
393 | } | |
394 | ||
395 | // Check if visiting appeal page. | |
396 | if (window.location.href.indexOf("appeal") > -1) { | |
397 | fsfModalWindowElemDontShowForAWhile(); | |
398 | } | |
399 | ||
400 | // Close popup if user clicks trasparent part | |
401 | document.getElementById("fsf-modal-window-elem-container").addEventListener("click", function(event){ | |
402 | fsfModalWindowElemDontShowForAWhile(); | |
403 | }); | |
404 | ||
405 | // Do not close popup if clicking non-trasparent part (with the text and buttons) | |
406 | document.getElementById("fsf-modal-window-elem").addEventListener("click", function(event){ | |
407 | event.stopPropagation(); | |
408 | }); | |
409 | ||
410 | // Close popup if user clicks X icon | |
411 | document.getElementById("fsf-modal-window-elem-close-button").addEventListener("click", function(event){ | |
412 | fsfModalWindowElemDontShowForAWhile(); | |
413 | }); | |
414 | ||
415 | // Disable popup if user clicks one of the main buttons | |
416 | document.getElementById("fsf-modal-window-elem-buttons").addEventListener("click", function(event){ | |
417 | fsfModalWindowElemFollowedLink(); | |
418 | }); | |
419 | ||
420 | // Disable popup if user clicks one of the "Read more" link | |
421 | document.getElementById("fsf-modal-window-text-link").addEventListener("click", function(event){ | |
422 | fsfModalWindowElemFollowedLink(); | |
423 | }); | |
424 | ||
425 | // Close popup if user presses escape key | |
426 | window.addEventListener("keydown", function (event) { | |
427 | switch (event.key) { | |
428 | case "Escape": | |
429 | fsfModalWindowElemDontShowForAWhile(); | |
430 | break; | |
431 | default: | |
432 | return; | |
433 | } | |
434 | }, true); | |
435 | // @license-end | |
436 | </script> | |
437 | </div> | |
438 | <!-- End fsf-modal-window-elem campaign element --> | |
9980a4ad | 439 | |
19bce4d7 TG |
440 | <!-- ~~~~~~~~~ GnuPG Header and introduction text ~~~~~~~~~ --> |
441 | <header class="row" id="header"><div> | |
116f80c3 | 442 | |
e59c77da | 443 | |
19bce4d7 | 444 | <h1>Email Self-Defense</h1> |
116f80c3 | 445 | |
19bce4d7 TG |
446 | <!-- Language list for browsers that do not have JS enabled --> |
447 | <ul id="languages" class="os"> | |
7c4f505e | 448 | <li><a class="current" href="/en">English - v4.0</a></li> |
c1fa777e | 449 | <li><a href="/cs">čeština - v4.0</a></li> |
f7d7ddc2 | 450 | <li><a href="/de">Deutsch - v4.0</a></li> |
7c4f505e ZR |
451 | <li><a href="/el">ελληνικά - v3.0</a></li> |
452 | <li><a href="/es">español - v4.0</a></li> | |
453 | <li><a href="/fa">فارسی - v4.0</a></li> | |
454 | <li><a href="/fr">français - v4.0</a></li> | |
455 | <li><a href="/it">italiano - v3.0</a></li> | |
456 | <li><a href="/ja">日本語 - v4.0</a></li> | |
7c4f505e ZR |
457 | <li><a href="/pt-br">português do Brasil - v3.0</a></li> |
458 | <li><a href="/ro">română - v3.0</a></li> | |
459 | <li><a href="/ru">русский - v4.0</a></li> | |
9197724d | 460 | <li><a href="/sq">Shqip - v4.0</a></li> |
7c4f505e ZR |
461 | <li><a href="/sv">svenska - v4.0</a></li> |
462 | <li><a href="/tr">Türkçe - v4.0</a></li> | |
597f7b15 | 463 | <li><a href="/zh-hans">简体中文 - v4.0</a></li> |
ce9d37a4 TG |
464 | <li><a href="https://libreplanet.org/wiki/GPG_guide/Translation_Guide"> |
465 | <strong><span style="color: #2F5FAA;">Translate!</span></strong></a></li> | |
19bce4d7 TG |
466 | </ul> |
467 | ||
468 | <ul id="menu" class="os"> | |
469 | <li class="spacer"><a href="index.html" class="current">GNU/Linux</a></li> | |
470 | <li><a href="mac.html">Mac OS</a></li> | |
471 | <li><a href="windows.html">Windows</a></li> | |
f211d856 I |
472 | <li class="spacer"><a href="workshops.html">Teach your friends</a></li> |
473 | <li class="spacer"><a | |
474 | href="https://fsf.org/share?u=https://u.fsf.org/zb&t=Email encryption for everyone via %40fsf"> | |
475 | Share | |
476 | <img src="//static.fsf.org/nosvn/enc-dev0/img/gnu-social.png" class="share-logo" | |
19bce4d7 | 477 | alt="[GNU Social]" /> |
d06ce723 TG |
478 | <img src="//static.fsf.org/nosvn/enc-dev0/img/mastodon.png" class="share-logo" |
479 | alt="[Mastodon]" /> | |
f211d856 | 480 | <img src="//static.fsf.org/nosvn/enc-dev0/img/reddit-alien.png" class="share-logo" |
19bce4d7 | 481 | alt="[Reddit]" /> |
f211d856 I |
482 | <img src="//static.fsf.org/nosvn/enc-dev0/img/hacker-news.png" class="share-logo" |
483 | alt="[Hacker News]" /></a></li> | |
19bce4d7 TG |
484 | </ul> |
485 | ||
486 | <!-- ~~~~~~~~~ FSF Introduction ~~~~~~~~~ --> | |
487 | <div id="fsf-intro"> | |
488 | ||
489 | <h3><a href="http://u.fsf.org/ys"><img | |
490 | alt="Free Software Foundation" | |
491 | src="//static.fsf.org/nosvn/enc-dev0/img/fsf-logo.png" /> | |
492 | </a></h3> | |
493 | ||
494 | <div class="fsf-emphasis"> | |
495 | ||
496 | <p>We fight for computer users' rights, and promote the development of free (as | |
497 | in freedom) software. Resisting bulk surveillance is very important to us.</p> | |
498 | ||
499 | <p><strong>Please donate to support Email Self-Defense. We need to keep | |
500 | improving it, and making more materials, for the benefit of people around | |
501 | the world taking the first step towards protecting their privacy.</strong></p> | |
502 | ||
503 | </div> | |
504 | ||
505 | <p><a | |
e59c77da | 506 | href="https://crm.fsf.org/civicrm/contribute/transact?reset=1&id=14&pk_campaign=email_self_defense&mtm_kwd=guide_donate"><img |
19bce4d7 TG |
507 | alt="Donate" |
508 | src="//static.fsf.org/nosvn/enc-dev0/img/en/donate.png" /></a></p> | |
509 | ||
510 | </div><!-- End #fsf-intro --> | |
511 | ||
512 | <!-- ~~~~~~~~~ Guide Introduction ~~~~~~~~~ --> | |
513 | <div class="intro"> | |
514 | ||
515 | <p><a id="infographic" href="infographic.html"><img | |
516 | src="//static.fsf.org/nosvn/enc-dev0/img/en/infographic-button.png" | |
517 | alt="View & share our infographic →" /></a> | |
518 | Bulk surveillance violates our fundamental rights and makes free speech | |
5b97f4df TG |
519 | risky. This guide will teach you a basic surveillance self-defense skill: email |
520 | encryption. Once you've finished, you'll be able to send and receive emails | |
521 | that are scrambled to make sure a surveillance agent or thief intercepting | |
522 | your email can't read them. All you need is a computer with an Internet | |
523 | connection, an email account, and about forty minutes.</p> | |
19bce4d7 TG |
524 | |
525 | <p>Even if you have nothing to hide, using encryption helps protect the privacy | |
526 | of people you communicate with, and makes life difficult for bulk surveillance | |
527 | systems. If you do have something important to hide, you're in good company; | |
528 | these are the same tools that whistleblowers use to protect their identities | |
80b64e11 | 529 | while shining light on human rights abuses, corruption, and other crimes.</p> |
19bce4d7 TG |
530 | |
531 | <p>In addition to using encryption, standing up | |
532 | to surveillance requires fighting politically for a <a | |
e59c77da | 533 | href="https://gnu.org/philosophy/surveillance-vs-democracy.html">reduction |
19bce4d7 TG |
534 | in the amount of data collected on us</a>, but the essential first step is |
535 | to protect yourself and make surveillance of your communication as difficult | |
536 | as possible. This guide helps you do that. It is designed for beginners, but | |
537 | if you already know the basics of GnuPG or are an experienced free software | |
538 | user, you'll enjoy the advanced tips and the <a href="workshops.html">guide | |
539 | to teaching your friends</a>.</p> | |
540 | ||
541 | </div><!-- End .intro --> | |
542 | </div></header><!-- End #header --> | |
543 | ||
544 | <!-- ~~~~~~~~~ Section 1: Get the pieces ~~~~~~~~~ --> | |
545 | <section class="row" id="section1"><div> | |
546 | ||
547 | <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ --> | |
548 | <div class="section-intro"> | |
549 | ||
550 | <h2><em>#1</em> Get the pieces</h2> | |
551 | ||
552 | <p class="notes">This guide relies on software which is <a | |
553 | href="https://www.gnu.org/philosophy/free-sw.html">freely licensed</a>; | |
554 | it's completely transparent and anyone can copy it or make their | |
555 | own version. This makes it safer from surveillance than proprietary | |
80b64e11 | 556 | software (like Windows or macOS). Learn more about free software at <a |
19bce4d7 TG |
557 | href="https://u.fsf.org/ys">fsf.org</a>.</p> |
558 | ||
559 | <p>Most GNU/Linux operating systems come with GnuPG installed on them, | |
7b83f7f9 | 560 | so you don't have to download it. Before configuring your encryption setup with this guide, though, you'll need a desktop email program based on Thunderbird installed on your computer. Many GNU/Linux distributions have Thunderbird installed already. If you're using a <a href="https://www.gnu.org/distros/free-distros.html">fully free distribution of GNU/Linux</a>, we recommend installing "Icedove" instead. Programs like these are another way to access the same email accounts you can access in a browser (like Gmail), but provide extra features.</p> |
19bce4d7 TG |
561 | |
562 | <p>If you already have an email program, you can skip to <a | |
7b83f7f9 | 563 | href="#section2">Step 2</a>.</p> |
19bce4d7 TG |
564 | |
565 | </div><!-- End .section-intro --> | |
566 | ||
567 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
568 | <div id="step-1a" class="step"> | |
569 | <div class="sidebar"> | |
570 | ||
571 | <p><img | |
7b83f7f9 | 572 | src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step1a-install-wizard.png" |
19bce4d7 TG |
573 | alt="Step 1.A: Install Wizard" /></p> |
574 | ||
575 | </div><!-- /.sidebar --> | |
576 | <div class="main"> | |
577 | ||
578 | <h3><em>Step 1.a</em> Set up your email program with your email account</h3> | |
579 | ||
580 | <p>Open your email program and follow the wizard (step-by-step walkthrough) | |
581 | that sets it up with your email account.</p> | |
582 | ||
19bce4d7 TG |
583 | <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ --> |
584 | <div class="troubleshooting"> | |
585 | ||
586 | <h4>Troubleshooting</h4> | |
587 | ||
588 | <dl> | |
589 | <dt>The wizard doesn't launch</dt> | |
590 | <dd>You can launch the wizard yourself, but the menu option for doing so is | |
591 | named differently in each email program. The button to launch it will be in | |
592 | the program's main menu, under "New" or something similar, titled something | |
593 | like "Add account" or "New/Existing email account."</dd> | |
594 | ||
595 | <dt>The wizard can't find my account or isn't downloading my mail</dt> | |
596 | <dd>Before searching the Web, we recommend you start by asking other people | |
597 | who use your email system, to figure out the correct settings.</dd> | |
598 | ||
19bce4d7 TG |
599 | <dt>I can't find the menu.</dt> |
600 | <dd>In many new email programs, the main menu is represented by an image of | |
601 | three stacked horizontal bars.</dd> | |
602 | ||
19bce4d7 TG |
603 | <dt class="feedback">Don't see a solution to your problem?</dt> |
604 | <dd class="feedback">Please let us know on the <a | |
605 | href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback | |
606 | page</a>.</dd> | |
607 | </dl> | |
608 | ||
609 | </div><!-- /.troubleshooting --> | |
610 | </div><!-- End .main --> | |
7b83f7f9 | 611 | </div><!-- End #step1-a .step --> |
80b64e11 | 612 | |
613 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
614 | <div id="terminology" class="step"> | |
615 | <div class="main"> | |
616 | ||
617 | <h3>GnuPG,OpenPGP, what?</h3> | |
618 | ||
619 | <p>In general, the terms GnuPG, GPG, GNU Privacy Guard, OpenPGP and PGP | |
620 | are used interchangeably. Technically, OpenPGP (Pretty Good Privacy) is the | |
621 | encryption standard, and GNU Privacy Guard (often shortened to GPG or GnuPG) | |
622 | is the program that implements the standard. Most email programs provide an interface for GnuPG. There is also a newer version of GnuPG, called GnuPG2.</p> | |
623 | ||
624 | </div><!-- End .main --> | |
625 | </div><!-- End #terminology.step--> | |
626 | ||
19bce4d7 TG |
627 | </div></section><!-- End #section1 --> |
628 | ||
629 | <!-- ~~~~~~~~~ Section 2: Make your keys ~~~~~~~~~ --> | |
7b83f7f9 | 630 | <section id="section2" class="row"><div> |
19bce4d7 TG |
631 | |
632 | <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ --> | |
633 | <div class="section-intro"> | |
634 | ||
635 | <h2><em>#2</em> Make your keys</h2> | |
7b83f7f9 | 636 | <p><img style="float:right; width:400px; margin-bottom:20px;" src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/step2a-01-make-keypair.png" alt="A robot with a head shaped like a key holding a private and a public key"/></p> |
19bce4d7 TG |
637 | |
638 | <p>To use the GnuPG system, you'll need a public key and a private key (known | |
639 | together as a keypair). Each is a long string of randomly generated numbers | |
640 | and letters that are unique to you. Your public and private keys are linked | |
641 | together by a special mathematical function.</p> | |
642 | ||
643 | <p>Your public key isn't like a physical key, because it's stored in the open | |
644 | in an online directory called a keyserver. People download it and use it, | |
645 | along with GnuPG, to encrypt emails they send to you. You can think of the | |
646 | keyserver as a phonebook; people who want to send you encrypted email can | |
647 | look up your public key.</p> | |
648 | ||
649 | <p>Your private key is more like a physical key, because you keep it to | |
650 | yourself (on your computer). You use GnuPG and your private key together to | |
651 | descramble encrypted emails other people send to you. <span style="font-weight: | |
c902d991 | 652 | bold;">You should never share your private key with anyone, under any |
19bce4d7 TG |
653 | circumstances.</span></p> |
654 | ||
655 | <p>In addition to encryption and decryption, you can also use these keys to | |
656 | sign messages and check the authenticity of other people's signatures. We'll | |
657 | discuss this more in the next section.</p> | |
658 | ||
659 | </div><!-- End .section-intro --> | |
660 | ||
661 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
662 | <div id="step-2a" class="step"> | |
663 | <div class="sidebar"> | |
19bce4d7 | 664 | <p><img |
7b83f7f9 | 665 | src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step2a-02-make-keypair.png" |
666 | alt="Step 2.A: Make your Keypair" text="Make a keypair" /></p> | |
667 | <br /> | |
668 | <p><img | |
669 | src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step2a-03-make-keypair.png" | |
670 | alt="Step 2.A: Set your passphrase" /></p> | |
671 | <br /> | |
19bce4d7 TG |
672 | |
673 | </div><!-- /.sidebar --> | |
674 | <div class="main"> | |
675 | ||
676 | <h3><em>Step 2.a</em> Make a keypair</h3> | |
7b83f7f9 | 677 | <h6>Make your keypair</h6> |
80b64e11 | 678 | <p>We will use the command line to create a keypair using the gnupg program. This should be installed on your GNU/Linux operating system. |
7b83f7f9 | 679 | Open a terminal using <text style="color:#2f5faa; font-family: monospace;">ctrl + alt + t</text>, or find it in your applications, and use the following code to create your keypair:</p> |
19bce4d7 | 680 | |
7b83f7f9 | 681 | <p># <text style="color:#2f5faa; font-family: monospace;">gpg --full-generate-key</text> to start the process.</p> |
682 | <p># To answer what kind of key you would like to create, select the default option <text style="color:#2f5faa; font-family: monospace;"> 1 RSA and RSA<text>.</p> | |
683 | <p># Enter the following keysize: <text style="color:#2f5faa; font-family: monospace;">4096</text> for a strong key.</p> | |
684 | <p># Choose the expiration date, we suggest <text style="color:#2f5faa; font-family: monospace;">2y</text> (2 years).</p> | |
e59c77da | 685 | <p>Follow the prompts to continue setting up with your personal details.</p> |
19bce4d7 | 686 | |
7b83f7f9 | 687 | <br /> |
688 | <h6>Set your passphrase</h6> | |
689 | <p>On the screen titled "Passphrase," pick a strong password! You can | |
19bce4d7 TG |
690 | do it manually, or you can use the Diceware method. Doing it manually |
691 | is faster but not as secure. Using Diceware takes longer and requires | |
4d10d72d | 692 | dice, but creates a password that is much harder for attackers to figure |
19bce4d7 | 693 | out. To use it, read the section "Make a secure passphrase with Diceware" in <a |
f211d856 | 694 | href="https://theintercept.com/2015/03/26/passphrases-can-memorize-attackers-cant-guess/"> |
7b83f7f9 | 695 | this article</a> by Micah Lee.</p> |
696 | ||
19bce4d7 | 697 | |
7b83f7f9 | 698 | <p>If you'd like to pick a passphrase manually, come up with something |
19bce4d7 TG |
699 | you can remember which is at least twelve characters long, and includes |
700 | at least one lower case and upper case letter and at least one number or | |
701 | punctuation symbol. Never pick a password you've used elsewhere. Don't use | |
702 | any recognizable patterns, such as birthdays, telephone numbers, pets' names, | |
703 | song lyrics, quotes from books, and so on.</p> | |
704 | ||
7b83f7f9 | 705 | <br /> |
19bce4d7 TG |
706 | |
707 | <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ --> | |
708 | <div class="troubleshooting"> | |
709 | ||
710 | <h4>Troubleshooting</h4> | |
19bce4d7 | 711 | <dl> |
e59c77da | 712 | <dt>GnuPG is not installed</dt> |
7b83f7f9 | 713 | <dd> |
714 | GPG is not installed. You can check if this is the case with the command <text style="color:#2f5faa; font-family: monospace;">gnupg --version</text> | |
715 | If Gnupg is not installed, it would bring up the following result: | |
716 | <text style="color:#2f5faa; font-family: monospace;">Command 'gpg' not found, but can be installed with: | |
717 | sudo apt install gnupg</text>. Follow that command and install the program.</dd> | |
718 | ||
719 | <dt>I took too long to create my passphrase</dt> | |
80b64e11 | 720 | <dd>That's okay. It's important to think about your passphrase, when you're ready, just follow the steps to create your key again.</dd> |
7b83f7f9 | 721 | |
722 | <dt>How can i see my key?</dt> | |
723 | <dd> | |
80b64e11 | 724 | Use the following command to see all keys <text style="color:#2f5faa; font-family: monospace;">gnupg --list-keys</text>. Yours should be listed in there, and later, so will Edward's (<a href="#section3">section 3</a>). If you want to see only your key, you can use <text style="color:#2f5faa; font-family: monospace;">gnupg --list-key [your@email]</text> |
7b83f7f9 | 725 | You can also use <text style="color:#2f5faa; font-family: monospace;">gnupg --list-secret-key</text> to see your own private key.</dd> |
19bce4d7 | 726 | |
19bce4d7 | 727 | <dt>More resources</dt> |
7b83f7f9 | 728 | <dd>For more information about this process, you can also refer to <a |
729 | href="https://www.gnupg.org/gph/en/manual/c14.html#AEN25">The GNU Privacy | |
730 | Handbook</a>. Make sure you stick with "RSA and RSA" (the default), | |
731 | because it's newer and more secure than the algorithms the documentation | |
80b64e11 | 732 | recommends. Also make sure your key is at least 4096 if you |
733 | want to be secure.</dd> | |
19bce4d7 TG |
734 | |
735 | <dt class="feedback">Don't see a solution to your problem?</dt> | |
736 | <dd class="feedback">Please let us know on the <a | |
737 | href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback | |
738 | page</a>.</dd> | |
739 | </dl> | |
740 | ||
741 | </div><!-- /.troubleshooting --> | |
742 | ||
743 | <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ --> | |
744 | <div class="troubleshooting"> | |
745 | ||
746 | <h4>Advanced</h4> | |
19bce4d7 | 747 | <dl> |
19bce4d7 TG |
748 | <dt>Advanced key pairs</dt> |
749 | <dd>When GnuPG creates a new keypair, it compartmentalizes | |
750 | the encryption function from the signing function through <a | |
751 | href="https://wiki.debian.org/Subkeys">subkeys</a>. If you use | |
7b83f7f9 | 752 | subkeys carefully, you can keep your GnuPG identity more |
19bce4d7 TG |
753 | secure and recover from a compromised key much more quickly. <a |
754 | href="https://alexcabal.com/creating-the-perfect-gpg-keypair/">Alex Cabal</a> | |
755 | and <a href="http://keyring.debian.org/creating-key.html">the Debian wiki</a> | |
756 | provide good guides for setting up a secure subkey configuration.</dd> | |
19bce4d7 TG |
757 | |
758 | </div><!-- /.troubleshooting --> | |
759 | </div><!-- End .main --> | |
760 | </div><!-- End #step-2a .step --> | |
761 | ||
762 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
763 | <div id="step-2b" class="step"> | |
7b83f7f9 | 764 | <div class="sidebar"> |
765 | <p><img | |
766 | src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step2b-04-upload-and-certificate.png" | |
80b64e11 | 767 | alt="Step 2.B: Send to server and generate a certificate" /></p> |
19bce4d7 | 768 | |
7b83f7f9 | 769 | </div><!-- /.sidebar --> |
770 | <div class="main"> | |
19bce4d7 | 771 | |
7b83f7f9 | 772 | <h3><em>Step 2.b</em> Some important steps following creation</h3> |
19bce4d7 | 773 | |
7b83f7f9 | 774 | <h6>Upload your key to a keyserver</h6> |
775 | <p>We will upload your key to a keyserver, so if someone wants to send you an encrypted message, they can download your public key from the Internet. There are multiple keyservers | |
19bce4d7 TG |
776 | that you can select from the menu when you upload, but they are all copies |
777 | of each other, so it doesn't matter which one you use. However, it sometimes | |
778 | takes a few hours for them to match each other when a new key is uploaded.</p> | |
7b83f7f9 | 779 | <p># Copy your keyID <text style="color:#2f5faa; font-family: monospace;">gnupg --list-key [your@email]</text> will list your public ("pub") key information, including your keyID, which is a unique list of numbers and letters. Copy this keyID, so you can use it in the following command.</p> |
780 | <p># Upload your key to a server: <text style="color:#2f5faa; font-family: monospace;">gpg --send-key [keyID]</text></p> | |
781 | ||
782 | <br /> | |
783 | ||
7b83f7f9 | 784 | <h6>Export your key to a file</h6> |
785 | <p>Use the following command to export your secret key so you can import it into your email client at the next <a href=#section3>step</a>. To avoid getting your key compromised, store this in a safe place, and make sure that if it is transferred, it is done so in a trusted way. Exporting your keys can be done with the following commands:</p> | |
786 | ||
787 | <text style="color:#2f5faa; font-family: monospace;"> | |
788 | <p>$ gpg --export-secret-keys -a keyid > my_secret_key.asc</p> | |
789 | <p>$ gpg --export -a keyid > my_public_key.asc</p> | |
790 | </text> | |
791 | ||
792 | <br /> | |
19bce4d7 | 793 | |
80b64e11 | 794 | <h6>Generate a revocation certificate</h6> |
795 | <p>Just in case you lose your key, or it gets compromised, you want to generate a certificate and choose to save it in a safe place on your computer for now (please refer to <a href="#step-6c"> step 6.C for how to best store your revocation cerficate safely). This step is essential for your email self-defense, as you'll learn more about in <a href="#section5">Section | |
796 | 5</a>.</p> | |
797 | <p># Copy your keyID <text style="color:#2f5faa; font-family: monospace;">gnupg --list-key [your@email]</text> will list your public ("pub") key information, including your keyID, which is a unique list of numbers and letters. Copy this keyID, so you can use it in the following command.</p> | |
798 | <p># Upload your key to a server: <text style="color:#2f5faa; font-family: monospace;">gpg --output revoke.asc [keyID]</text></p> | |
799 | <p># It will prompt you to give a reason for revocation, we recommend to use <text style="color:#2f5faa; font-family: monospace;">1 "key has been compromised"</text></p> | |
800 | <p># You don't have to fill in a reason, but you can, then press enter for an empty line, and comfirm your selection.</p> | |
801 | ||
802 | <br /> | |
803 | ||
19bce4d7 TG |
804 | <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ --> |
805 | <div class="troubleshooting"> | |
806 | ||
807 | <h4>Troubleshooting</h4> | |
808 | ||
809 | <dl> | |
80b64e11 | 810 | <dt>My key is doesn't seem to be working or I get a "permission denied".</dt> |
7b83f7f9 | 811 | <dd>Like everything other file or folder, gpg keys are subject to permissions. If these are not set correctly, your system may not be accepting your keys, you can follow the next steps to check, and update to the right permissions.</p> |
19bce4d7 | 812 | |
7b83f7f9 | 813 | # Check your permissions: <text style="color:#2f5faa; font-family: monospace;">ls -l ~/.gnupg/*</text></p> |
814 | # Set permissions to read, write, execute for only yourself, no others. This is the recommended permission for your folder, you can use the code <text style="color:#2f5faa"> | |
815 | chmod 700 ~/.gnupg</text>.</p> | |
816 | # Set permissions to read, write for only yourself, no others. This is the recommended permission for the keys inside your folder, you can use the code: <text style="color:#2f5faa; font-family: monospace;">chmod 600 ~/.gnupg/*</text>.</p> | |
19bce4d7 | 817 | |
7b83f7f9 | 818 | <p class="notes"><p>If you have (for any reason) created your own folders inside ~/.gnupg, you must also additionally apply execute permissions to that folder. Folders require execution privileges to be opened. For more information on permissions, you can check out <a href="https://helpdeskgeek.com/linux-tips/understanding-linux-permissions-chmod-usage/">this detailed information guide</a>.</p> |
819 | </dd> | |
19bce4d7 TG |
820 | <dt class="feedback">Don't see a solution to your problem?</dt> |
821 | <dd class="feedback">Please let us know on the <a | |
822 | href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback | |
823 | page</a>.</dd> | |
824 | </dl> | |
825 | ||
826 | </div><!-- /.troubleshooting --> | |
827 | ||
828 | <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ --> | |
829 | <div class="troubleshooting"> | |
830 | ||
831 | <h4>Advanced</h4> | |
832 | ||
833 | <dl> | |
7b83f7f9 | 834 | <dt>More about keyservers</dt> |
835 | <dd>You can find some more keyserver information<a | |
836 | href="https://www.gnupg.org/gph/en/manual/x457.html">in this manual</a>. <a | |
19bce4d7 TG |
837 | href="https://sks-keyservers.net/overview-of-pools.php">The sks Web site</a> |
838 | maintains a list of highly interconnected keyservers. You can also <a | |
839 | href="https://www.gnupg.org/gph/en/manual/x56.html#AEN64">directly export | |
840 | your key</a> as a file on your computer.</dd> | |
7b83f7f9 | 841 | |
842 | <dt>Transferring your keys</dt> | |
843 | <dd>Use the following commands transfer your keys. To avoid getting your key compromised, store it in a safe place, and make sure that if it is transferred, it is done so in a trusted way. Importing and exporting a key can be done with the following commands:</p> | |
844 | ||
845 | <text style="color:#2f5faa; font-family: monospace;"> | |
846 | $ gpg --export-secret-keys -a keyid > my_private_key.asc</p> | |
847 | $ gpg --export -a keyid > my_public_key.asc</p> | |
848 | </text> | |
849 | ||
850 | <text style="color:#2f5faa; font-family: monospace;"> | |
851 | $ gpg --import my_private_key.asc</p> | |
852 | $ gpg --import my_public_key.asc</p> | |
853 | </text> | |
854 | ||
855 | Ensure that the Key ID printed is the correct one, and if so, then go ahead and add ultimate trust for it:</p> | |
856 | <text style="color:#2f5faa; font-family: monospace;"> | |
857 | $ gpg --edit-key [your@email]</p> | |
858 | </text> | |
859 | ||
860 | Because this is your key, you should choose <text style="color:#2f5faa; font-family: monospace;">ultimate</text>. You shouldn't trust anyone else's key ultimately. | |
80b64e11 | 861 | |
862 | <p class="notes"> Refer to <a href="#step-2b">troubleshoot in step 2.B</a> for more information on permissions. When transferring keys, your permissions may get mixed, and errors may be prompted. These have are easily avoided when your folders and files have the right permissions</p> | |
7b83f7f9 | 863 | </dd> |
19bce4d7 TG |
864 | </dl> |
865 | ||
866 | </div><!-- /.troubleshooting --> | |
867 | </div><!-- End .main --> | |
868 | </div><!-- End #step-2b .step --> | |
19bce4d7 TG |
869 | </div></section><!-- End #section2 --> |
870 | ||
7b83f7f9 | 871 | <!-- ~~~~~~~~~ Section 3: Set up email encryption ~~~~~~~~~ --> |
872 | <section id="section3" class="row"><div> | |
19bce4d7 TG |
873 | |
874 | <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ --> | |
875 | <div class="section-intro"> | |
876 | ||
7b83f7f9 | 877 | <h2><em>#3</em> Set up email encryption</h2> |
878 | <p class="notes"><p>Icedove and Thunderbird email programs have PGP functionality integrated, which makes it pretty easy to work with. We'll take you through the steps of integrating and using your key in these email clients.</p> | |
879 | ||
880 | </div><!-- End .section-intro --> | |
881 | ||
882 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
883 | <div id="step-3a" class="step"> | |
884 | <div class="sidebar"> | |
885 | ||
886 | <p><img src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step3a-open-key-manager.png" | |
887 | alt="Step 3.A: Thunderbird Menu" /></p> | |
cf02c02f | 888 | <br /> |
7b83f7f9 | 889 | <p><img src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step3a-import-from-file.png" |
890 | alt="Step 3.A: Import From File" /></p> | |
cf02c02f | 891 | <br /> |
7b83f7f9 | 892 | <p><img src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step3a-select-file.png" |
893 | alt="Step 3.A: Select File" /></p> | |
cf02c02f | 894 | <br /> |
7b83f7f9 | 895 | <p><img src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step3a-success.png" |
896 | alt="Step 3.A: Success" /></p> | |
897 | </div><!-- /.sidebar --> | |
898 | <div class="main"> | |
899 | ||
900 | <h3><em>Step 3.a</em> Set up your email with encryption</h3> | |
901 | Once you have set up your email with encryption, you can start contributing to encrypted traffic on the Internet. First we'll get your email client to import your secret key, and we will also learn how to get other people's public keys from servers so you can send and receive encrypted email. | |
902 | ||
903 | <p># Open your email client and use "Tools" → <text style="color:#2f5faa;">OpenPGP Manager</p></text></p> | |
904 | <p># Under "File" → <text style="color:#2f5faa;">Import Secret Key(s) From File</text></p> | |
905 | <p># Select the file you saved under the name [my_secret_key.asc] in step <a href="#step-3b">step 3.b</a> when you exported your key</p> | |
906 | <p># Unlock with your passphrase</p> | |
907 | <p># You will receive a "OpenPGP keys successfully imported" window to confirm success</p> | |
80b64e11 | 908 | <p># Go to "Edit" (in Icedove) or "Tools" (in Thunderbird) → "Account settings" → "End-To-End Encryption", and make sure your key is imported and select <text style="color:#2f5faa;">Treat this key as a Personal Key</text>.</p> |
19bce4d7 | 909 | |
7b83f7f9 | 910 | </div><!-- End .main --> |
911 | ||
912 | <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ --> | |
913 | <div class="sidebar"> | |
914 | ||
915 | <p><img src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step3a-troubleshoot.png" | |
916 | alt="Step 3.A: Troubleshoot" /></p> | |
917 | </div><!-- /.sidebar --> | |
918 | ||
919 | <div class="main"> | |
920 | <div class="troubleshooting"> | |
921 | <h4>Troubleshooting</h4> | |
922 | <dl> | |
923 | <dt>I'm not sure the import worked correctly</dt> | |
924 | <dd> | |
925 | Under "Edit" (in Icedove) or "Tools" (in Thunderbird) look for "Account settings" → "End-To-End Encryption" you can see if your personal key associated with this email is found. If it is not, you can try again via the <text style="color:#2f5faa;">Add key</text> option. Make sure you have the correct, active, secret key file. | |
926 | </dd> | |
927 | ||
928 | <dt class="feedback">Don't see a solution to your problem?</dt> | |
929 | <dd class="feedback">Please let us know on the <a | |
930 | href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback | |
931 | page</a>.</dd> | |
932 | </dl> | |
933 | ||
934 | </div><!-- /.troubleshooting --> | |
935 | </div><!-- End .main --> | |
936 | </div><!-- End #step3-a .step --> | |
937 | </div></section><!-- End #section3 --> | |
938 | ||
939 | <!-- ~~~~~~~~~ Section 4: Try it out ~~~~~~~~~ --> | |
940 | <section class="row" id="section4"><div> | |
941 | ||
942 | <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ --> | |
943 | <div class="section-intro"> | |
944 | ||
945 | <h2><em>#4</em> Try it out!</h2> | |
946 | <p><img style="float:right; width:250px; margin-bottom:20px;" src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/section3-try-it-out.png" alt="Illustration of a person in a house with a cat connected to a server"/></p> | |
19bce4d7 TG |
947 | <p>Now you'll try a test correspondence with a computer program named Edward, |
948 | who knows how to use encryption. Except where noted, these are the same | |
949 | steps you'd follow when corresponding with a real, live person.</p> | |
950 | ||
951 | <!-- <p>NOTE: Edward is currently having some technical difficulties, so he | |
952 | may take a long time to respond, or not respond at all. We're sorry about | |
953 | this and we're working hard to fix it. Your key will still work even without | |
954 | testing with Edward.</p> --> | |
955 | </div><!-- End .section-intro --> | |
956 | ||
957 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
7b83f7f9 | 958 | <div id="step-4a" class="step"> |
19bce4d7 TG |
959 | <div class="sidebar"> |
960 | ||
961 | <p><img | |
7b83f7f9 | 962 | src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step4a-send-key-to-Edward.png" |
963 | alt="Step 4.A Send key to Edward." /></p> | |
19bce4d7 TG |
964 | |
965 | </div><!-- /.sidebar --> | |
966 | <div class="main"> | |
967 | ||
7b83f7f9 | 968 | <h3><em>Step 4.a</em> Send Edward your public key</h3> |
19bce4d7 TG |
969 | |
970 | <p>This is a special step that you won't have to do when corresponding | |
7b83f7f9 | 971 | with real people. In your email program's menu, go to "Tools" → "OpenPGP Key |
972 | Manager". You should see your key in the list that pops up. Right click | |
80b64e11 | 973 | on your key and select <text style="color:#2f5faa;">Send Public Keys by Email</text>. This will create a new draft message, as if you had just hit the "Write" button, but in the attachment you will find your public keyfile.</p> |
19bce4d7 TG |
974 | |
975 | <p>Address the message to <a | |
976 | href="mailto:edward-en@fsf.org">edward-en@fsf.org</a>. Put at least one word | |
977 | (whatever you want) in the subject and body of the email. Don't send yet.</p> | |
978 | ||
80b64e11 | 979 | <p>We want Edward to be able to open the email with your keyfile, so we want this first special message to be unencrypted. Make sure encryption is turned off by using the dropdown menu "Security" and select <text style="color:#2f5faa">Do Not Encrypt</text>. Once encryption is off, hit Send.</p> |
19bce4d7 TG |
980 | |
981 | <p class="notes">It may take two or three minutes for Edward to | |
982 | respond. In the meantime, you might want to skip ahead and check out the <a | |
7b83f7f9 | 983 | href="#section6">Use it Well</a> section of this guide. Once he's responded, |
19bce4d7 TG |
984 | head to the next step. From here on, you'll be doing just the same thing as |
985 | when corresponding with a real person.</p> | |
986 | ||
7b83f7f9 | 987 | <p>When you open Edward's reply, GnuPG may prompt you for your passphrase |
19bce4d7 TG |
988 | before using your private key to decrypt it.</p> |
989 | ||
990 | </div><!-- End .main --> | |
7b83f7f9 | 991 | </div><!-- End #step-4a .step --> |
19bce4d7 TG |
992 | |
993 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
7b83f7f9 | 994 | <div id="step-4b" class="step"> |
995 | <div class="sidebar"> | |
19bce4d7 | 996 | |
7b83f7f9 | 997 | <p><img |
998 | src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step4b-option1-verify-key.png" | |
999 | alt="Step 4.B Option 1. Verify key" /></p> | |
cf02c02f | 1000 | |
1001 | <br /> | |
7b83f7f9 | 1002 | <p><img |
1003 | src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step4b-option2-import-key.png" | |
1004 | alt="Step 4.B Option 2. Import key" /></p> | |
1005 | </div><!-- /.sidebar --> | |
19bce4d7 | 1006 | |
7b83f7f9 | 1007 | <div class="main"> |
19bce4d7 | 1008 | |
7b83f7f9 | 1009 | <h3><em>Step 4.b</em> Send a test encrypted email</h3> |
1010 | <h6>Get Edward's key</h6> | |
80b64e11 | 1011 | <p>To encrypt an email to Edward, you need its public key, so now you'll have |
7b83f7f9 | 1012 | to download it from a keyserver. You can do this in two different ways:</p> |
1013 | <p>Option 1. In the email answer you received from Edward as a response to your first email, Edward's public key was included. On the right of the email, just above the writing area, you will find an "OpenPGP" button that has a lock and a little wheel next to it. Click that, and select <text style="color:#2f5faa">Discover</text> next to the text: "This message was sent with a key that you don't have yet." A popup with Edward's key details will follow. | |
19bce4d7 | 1014 | |
7b83f7f9 | 1015 | <p>Option 2. Open your OpenPGP manager and under "Keyserver" choose <text style="color:#2f5faa">Discover Keys Online</text>. Here, fill in Edward's email address, and import Edward's key. |
19bce4d7 | 1016 | |
7b83f7f9 | 1017 | <p>The option <text style="color:#2f5faa">Accepted (unverified)</text> will add this key to your key manager, and now it can be used to send encrypted emails and to verify digital signatures from Edward.</p> |
19bce4d7 | 1018 | |
7b83f7f9 | 1019 | <p class="notes">Edward has many different emails associated with its key, you can safely import the key.</p> |
19bce4d7 TG |
1020 | |
1021 | <p class="notes">Since you encrypted this email with Edward's public key, | |
1022 | Edward's private key is required to decrypt it. Edward is the only one with | |
80b64e11 | 1023 | its private key, so no one except Edward can decrypt it.</p> |
19bce4d7 | 1024 | |
7b83f7f9 | 1025 | <br /> |
1026 | <h6>Send Edward an encrpyted email</h6> | |
1027 | ||
1028 | <p># Write a new email in your email program, addressed to <a | |
1029 | href="mailto:edward-en@fsf.org">edward-en@fsf.org</a>. Make the subject | |
1030 | "Encryption test" or something similar and write something in the body.</p> | |
1031 | ||
1032 | <p>This time, make sure encryption is turned on by using the drowpdown menu "Security" and select <text style="color:#2f5faa">Require Encryption</text>. Once encryption is on, hit Send.</p> | |
1033 | ||
1034 | <br /> | |
1035 | ||
19bce4d7 TG |
1036 | <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ --> |
1037 | <div class="troubleshooting"> | |
1038 | ||
1039 | <h4>Troubleshooting</h4> | |
1040 | ||
1041 | <dl> | |
7b83f7f9 | 1042 | <dt>"Recipients not valid, not trusted or not found"</dt> |
80b64e11 | 1043 | <dd>You may be trying to send an encrypted email to someone when you do not have their public key yet. Make sure you follow the steps above to import the key to your key manager. Open OpenPGP Key Manager to make sure the recipient is listed there.</dd> |
7b83f7f9 | 1044 | |
1045 | <dt>Unable to send message</dt> | |
1046 | <dd>You could get the following message when trying to send your encrypted email: "Unable to send this message with end-to-end encryption, because there are problems with the keys of the following recipients: edward-en@fsf.org." This usually means you imported the key with the "unaccepted (unverified) option, if you go to the "key properties" of this key by right clicking on the key in the OpenPGP Key Manager, you can select the option <text style="color:#2f5faa">Yes, but I have not verified that this is the correct key.</text> in the "Acceptance" option at the bottom of this window. Resend the email.</dd> | |
1047 | ||
1048 | <dt>I can't find Edward's key</dt> | |
19bce4d7 TG |
1049 | <dd>Close the pop-ups that have appeared since you clicked Send. Make sure |
1050 | you are connected to the Internet and try again. If that doesn't work, repeat | |
1051 | the process, choosing a different keyserver when it asks you to pick one.</dd> | |
1052 | ||
1053 | <dt>Unscrambled messages in the Sent folder</dt> | |
1054 | <dd>Even though you can't decrypt messages encrypted to someone else's key, | |
1055 | your email program will automatically save a copy encrypted to your public key, | |
1056 | which you'll be able to view from the Sent folder like a normal email. This | |
1057 | is normal, and it doesn't mean that your email was not sent encrypted.</dd> | |
1058 | ||
19bce4d7 TG |
1059 | <dt class="feedback">Don't see a solution to your problem?</dt> |
1060 | <dd class="feedback">Please let us know on the <a | |
1061 | href="https://libreplanet.org/wiki/GPG_guide/Public_Review">feedback | |
1062 | page</a>.</dd> | |
1063 | </dl> | |
1064 | ||
1065 | </div><!-- /.troubleshooting --> | |
1066 | ||
1067 | <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ --> | |
1068 | <div class="troubleshooting"> | |
1069 | ||
1070 | <h4>Advanced</h4> | |
1071 | ||
1072 | <dl> | |
1073 | <dt>Encrypt messages from the command line</dt> | |
1074 | <dd>You can also encrypt and decrypt messages and files from the <a | |
1075 | href="https://www.gnupg.org/gph/en/manual/x110.html">command line</a>, | |
1076 | if that's your preference. The option --armor makes the encrypted output | |
1077 | appear in the regular character set.</dd> | |
1078 | </dl> | |
1079 | ||
1080 | </div><!-- /.troubleshooting --> | |
1081 | </div><!-- End .main --> | |
7b83f7f9 | 1082 | </div><!-- End #step-4b .step --> |
19bce4d7 TG |
1083 | |
1084 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
1085 | <div id="step-headers_unencrypted" class="step"> | |
1086 | <div class="main"> | |
1087 | ||
1088 | <h3><em>Important:</em> Security tips</h3> | |
19e80165 | 1089 | |
19bce4d7 TG |
1090 | <p>Even if you encrypt your email, the subject line is not encrypted, so |
1091 | don't put private information there. The sending and receiving addresses | |
1092 | aren't encrypted either, so a surveillance system can still figure out who | |
1093 | you're communicating with. Also, surveillance agents will know that you're | |
1094 | using GnuPG, even if they can't figure out what you're saying. When you | |
7b83f7f9 | 1095 | send attachments, you can choose to encrypt them or not, |
19bce4d7 | 1096 | independent of the actual email.</p> |
bdf319c4 | 1097 | |
e72398d7 MB |
1098 | <p>For greater security against potential attacks, you can turn off |
1099 | HTML. Instead, you can render the message body as plain text. In order | |
c0c01f86 | 1100 | to do this in Thunderbird, go to View > Message Body As > Plain |
e72398d7 MB |
1101 | Text.</p> |
1102 | ||
19bce4d7 TG |
1103 | </div><!-- End .main --> |
1104 | </div><!-- End #step-headers_unencrypted .step--> | |
d85363e7 | 1105 | |
19bce4d7 | 1106 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> |
7b83f7f9 | 1107 | <div id="step-4c" class="step"> |
1108 | <div class="sidebar"> | |
1109 | ||
1110 | <p><img | |
1111 | src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step4c-Edward-response.png" | |
1112 | alt="Step 4.C Edward's response" /></p> | |
1113 | ||
1114 | </div><!-- /.sidebar --> | |
1115 | ||
19bce4d7 TG |
1116 | <div class="main"> |
1117 | ||
7b83f7f9 | 1118 | <h3><em>Step 4.c</em> Receive a response</h3> |
19bce4d7 | 1119 | |
80b64e11 | 1120 | <p>When Edward receives your email, it will use its private key to decrypt |
f54f2134 | 1121 | it, then reply to you. </p> |
19bce4d7 TG |
1122 | |
1123 | <p class="notes">It may take two or three minutes for Edward to | |
1124 | respond. In the meantime, you might want to skip ahead and check out the <a | |
7b83f7f9 | 1125 | href="#section6">Use it Well</a> section of this guide.</p> |
1126 | ||
1127 | <p>Edward will send you an encrypted email back saying your email was received and decypted. Your email client will automatically decrypt Edward's message.</p> | |
1128 | ||
80b64e11 | 1129 | <p class="notes">The OpenPGP button in the email will show a little green checkmark over the lock symbol to show the message is encypted, and a little orange warning sign which means that you have accepted the key, but not verified it. When you have not yet accepted the key, you will see a little question mark there. Clicking the prompts in this button will lead you to key properties as well.</p> |
19bce4d7 | 1130 | |
19bce4d7 | 1131 | </div><!-- End .main --> |
7b83f7f9 | 1132 | </div><!-- End #step-4c .step --> |
19bce4d7 TG |
1133 | |
1134 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
7b83f7f9 | 1135 | <div id="step-4d" class="step"> |
19bce4d7 TG |
1136 | <div class="main"> |
1137 | ||
80b64e11 | 1138 | <h3><em>Step 4.d</em> Send a signed test email</h3> |
19bce4d7 TG |
1139 | |
1140 | <p>GnuPG includes a way for you to sign messages and files, verifying that | |
1141 | they came from you and that they weren't tampered with along the way. These | |
1142 | signatures are stronger than their pen-and-paper cousins -- they're impossible | |
1143 | to forge, because they're impossible to create without your private key | |
1144 | (another reason to keep your private key safe).</p> | |
1145 | ||
1146 | <p>You can sign messages to anyone, so it's a great way to make people | |
1147 | aware that you use GnuPG and that they can communicate with you securely. If | |
1148 | they don't have GnuPG, they will be able to read your message and see your | |
1149 | signature. If they do have GnuPG, they'll also be able to verify that your | |
1150 | signature is authentic.</p> | |
1151 | ||
1152 | <p>To sign an email to Edward, compose any message to him and click the | |
1153 | pencil icon next to the lock icon so that it turns gold. If you sign a | |
1154 | message, GnuPG may ask you for your password before it sends the message, | |
1155 | because it needs to unlock your private key for signing.</p> | |
1156 | ||
7b83f7f9 | 1157 | <p>In "Account Settings" → "End-To-End-Encryption" you can opt to <text style="color:#2f5faa">add digital signature by default</text>.</p> |
19bce4d7 | 1158 | |
7b83f7f9 | 1159 | </div><!-- End .main --> |
1160 | </div><!-- End #step-4d .step --> | |
19bce4d7 TG |
1161 | |
1162 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
7b83f7f9 | 1163 | <div id="step-4e" class="step"> |
19bce4d7 TG |
1164 | <div class="main"> |
1165 | ||
7b83f7f9 | 1166 | <h3><em>Step 4.e</em> Receive a response</h3> |
19bce4d7 | 1167 | |
f54f2134 Z |
1168 | <p>When Edward receives your email, he will use your public key (which |
1169 | you sent him in <a href="#step-3a">Step 3.A</a>) to verify the message | |
80b64e11 | 1170 | you sent has not been tampered with and to encrypt a reply to you.</p> |
19bce4d7 TG |
1171 | |
1172 | <p class="notes">It may take two or three minutes for Edward to | |
1173 | respond. In the meantime, you might want to skip ahead and check out the <a | |
7b83f7f9 | 1174 | href="#section6">Use it Well</a> section of this guide.</p> |
19bce4d7 TG |
1175 | |
1176 | <p>Edward's reply will arrive encrypted, because he prefers to use encryption | |
1177 | whenever possible. If everything goes according to plan, it should say | |
1178 | "Your signature was verified." If your test signed email was also encrypted, | |
1179 | he will mention that first.</p> | |
1180 | ||
7b83f7f9 | 1181 | <p>When you receive Edward's email and open it, your email client will |
f54f2134 Z |
1182 | automatically detect that it is encrypted with your public key, and |
1183 | then it will use your private key to decrypt it.</p> | |
1184 | ||
19bce4d7 | 1185 | </div><!-- End .main --> |
7b83f7f9 | 1186 | </div><!-- End #step-4e .step --> |
19bce4d7 TG |
1187 | </div></section> |
1188 | ||
7b83f7f9 | 1189 | <!-- ~~~~~~~~~ Section 5: Learn the Web of Trust ~~~~~~~~~ --> |
1190 | <section class="row" id="section5"><div> | |
19bce4d7 TG |
1191 | |
1192 | <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ --> | |
1193 | <div class="section-intro"> | |
1194 | ||
7b83f7f9 | 1195 | <h2><em>#5</em> Learn the Web of Trust</h2> |
1196 | <p><img style="float:right; width:250px; margin-bottom:20px;" src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/section4-web-of-trust.png" alt="Illustration of keys all interconnected with a web of lines"/></p> | |
19bce4d7 TG |
1197 | |
1198 | <p>Email encryption is a powerful technology, but it has a weakness; | |
1199 | it requires a way to verify that a person's public key is actually | |
1200 | theirs. Otherwise, there would be no way to stop an attacker from making | |
1201 | an email address with your friend's name, creating keys to go with it and | |
1202 | impersonating your friend. That's why the free software programmers that | |
1203 | developed email encryption created keysigning and the Web of Trust.</p> | |
1204 | ||
1205 | <p>When you sign someone's key, you are publicly saying that you've verified | |
1206 | that it belongs to them and not someone else.</p> | |
1207 | ||
1208 | <p>Signing keys and signing messages use the same type of mathematical | |
1209 | operation, but they carry very different implications. It's a good practice | |
1210 | to generally sign your email, but if you casually sign people's keys, you | |
1211 | may accidently end up vouching for the identity of an imposter.</p> | |
1212 | ||
1213 | <p>People who use your public key can see who has signed it. Once you've | |
1214 | used GnuPG for a long time, your key may have hundreds of signatures. You | |
1215 | can consider a key to be more trustworthy if it has many signatures from | |
1216 | people that you trust. The Web of Trust is a constellation of GnuPG users, | |
1217 | connected to each other by chains of trust expressed through signatures.</p> | |
1218 | ||
1219 | </div><!-- End .section-intro --> | |
1220 | ||
1221 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
7b83f7f9 | 1222 | <div id="step-5a" class="step"> |
19bce4d7 TG |
1223 | <div class="sidebar"> |
1224 | ||
1225 | <p><img | |
cf02c02f | 1226 | src="//static.fsf.org/nosvn/enc-dev1/img/en/screenshots/step5a-key-properties.png" |
7b83f7f9 | 1227 | alt="Section 5: trusting a key" /></p> |
19bce4d7 TG |
1228 | |
1229 | </div><!-- /.sidebar --> | |
1230 | <div class="main"> | |
1231 | ||
7b83f7f9 | 1232 | <h3><em>Step 5.a</em> Sign a key</h3> |
19bce4d7 | 1233 | |
7b83f7f9 | 1234 | <p>In your email program's menu, go to OpenPGP Key Manager and select <text style="color:#2f5faa">Key properties</text> by right clicking on Edward's key.</p> |
19bce4d7 | 1235 | |
7b83f7f9 | 1236 | <p>Under "Your Acceptance", you can select <text style="color:#2f5faa">Yes, I've verified in person this key has the correct fingerprint"</text></p> |
19bce4d7 TG |
1237 | |
1238 | <p class="notes">You've just effectively said "I trust that Edward's public | |
1239 | key actually belongs to Edward." This doesn't mean much because Edward isn't | |
7b83f7f9 | 1240 | a real person, but it's good practice, and for real people it is important. You can read more about signing a person's key in the <a href="#check-ids-before-signing">check IDs before signing</a> section</p> |
19bce4d7 TG |
1241 | |
1242 | <!--<div id="pgp-pathfinder"> | |
1243 | ||
1244 | <form enctype="application/x-www-form-urlencoded" action="/mk_path.cgi" | |
1245 | method="get"> | |
1246 | ||
f211d856 | 1247 | <p><strong>From:</strong><input type="text" value="xD41A008" |
19bce4d7 TG |
1248 | name="FROM"></p> |
1249 | ||
f211d856 | 1250 | <p><strong>To:</strong><input type="text" value="50BD01x4" name="TO"></p> |
19bce4d7 TG |
1251 | |
1252 | <p class="buttons"><input type="submit" value="trust paths" name="PATHS"><input | |
1253 | type="reset" value="reset" name=".reset"></p> | |
1254 | ||
1255 | </form> | |
1256 | ||
1257 | </div>End #pgp-pathfinder --> | |
1258 | </div><!-- End .main --> | |
7b83f7f9 | 1259 | </div><!-- End #step-5a .step --> |
19bce4d7 TG |
1260 | |
1261 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
1262 | <div id="step-identify_keys" class="step"> | |
1263 | <div class="main"> | |
1264 | ||
1265 | <h3>Identifying keys: Fingerprints and IDs</h3> | |
1266 | ||
1267 | <p>People's public keys are usually identified by their key fingerprint, | |
1268 | which is a string of digits like F357AA1A5B1FA42CFD9FE52A9FF2194CC09A61E8 | |
1269 | (for Edward's key). You can see the fingerprint for your public key, and | |
7b83f7f9 | 1270 | other public keys saved on your computer, by going to OpenPGP Key |
19bce4d7 TG |
1271 | Management in your email program's menu, then right clicking on the key |
1272 | and choosing Key Properties. It's good practice to share your fingerprint | |
1273 | wherever you share your email address, so that people can double-check that | |
1274 | they have the correct public key when they download yours from a keyserver.</p> | |
1275 | ||
c0c01f86 MB |
1276 | <p class="notes">You may also see public keys referred to by a shorter |
1277 | key ID. This key ID is visible directly from the Key Management | |
1278 | window. These eight character key IDs were previously used for | |
1279 | identification, which used to be safe, but is no longer reliable. You | |
1280 | need to check the full fingerprint as part of verifying you have the | |
1281 | correct key for the person you are trying to contact. Spoofing, in | |
1282 | which someone intentionally generates a key with a fingerprint whose | |
1283 | final eight characters are the same as another, is unfortunately | |
1284 | common.</p> | |
19bce4d7 TG |
1285 | |
1286 | </div><!-- End .main --> | |
1287 | </div><!-- End #step-identify_keys .step--> | |
1288 | ||
1289 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
1290 | <div id="check-ids-before-signing" class="step"> | |
1291 | <div class="main"> | |
1292 | ||
1293 | <h3><em>Important:</em> What to consider when signing keys</h3> | |
1294 | ||
1295 | <p>Before signing a person's key, you need to be confident that it actually | |
1296 | belongs to them, and that they are who they say they are. Ideally, this | |
1297 | confidence comes from having interactions and conversations with them over | |
1298 | time, and witnessing interactions between them and others. Whenever signing | |
1299 | a key, ask to see the full public key fingerprint, and not just the shorter | |
1300 | key ID. If you feel it's important to sign the key of someone you've just | |
1301 | met, also ask them to show you their government identification, and make | |
7b83f7f9 | 1302 | sure the name on the ID matches the name on the public key.</p> |
19bce4d7 TG |
1303 | |
1304 | <!-- ~~~~~~~~~ Troubleshooting ~~~~~~~~~ --> | |
1305 | <div class="troubleshooting"> | |
1306 | ||
1307 | <h4>Advanced</h4> | |
1308 | ||
1309 | <dl> | |
1310 | <dt>Master the Web of Trust</dt> | |
1311 | <dd>Unfortunately, trust does not spread between users the way <a | |
1312 | href="http://fennetic.net/irc/finney.org/~hal/web_of_trust.html">many people | |
1313 | think</a>. One of best ways to strengthen the GnuPG community is to deeply <a | |
1314 | href="https://www.gnupg.org/gph/en/manual/x334.html">understand</a> the Web of | |
1315 | Trust and to carefully sign as many people's keys as circumstances permit.</dd> | |
19bce4d7 TG |
1316 | </dl> |
1317 | ||
1318 | </div><!-- /.troubleshooting --> | |
1319 | </div><!-- End .main --> | |
1320 | </div><!-- End #check-ids-before-signing .step--> | |
7b83f7f9 | 1321 | </div></section><!-- End #section5 --> |
d85363e7 | 1322 | |
7b83f7f9 | 1323 | <!-- ~~~~~~~~~ Section 6: Use it well ~~~~~~~~~ --> |
1324 | <section id="section6" class="row"><div> | |
19bce4d7 TG |
1325 | |
1326 | <!-- ~~~~~~~~~ section introduction: interspersed text ~~~~~~~~~ --> | |
1327 | <div class="section-intro"> | |
1328 | ||
7b83f7f9 | 1329 | <h2><em>#6</em> Use it well</h2> |
19bce4d7 TG |
1330 | |
1331 | <p>Everyone uses GnuPG a little differently, but it's important to follow | |
1332 | some basic practices to keep your email secure. Not following them, you | |
1333 | risk the privacy of the people you communicate with, as well as your own, | |
1334 | and damage the Web of Trust.</p> | |
1335 | ||
1336 | </div><!-- End .section-intro --> | |
1337 | ||
1338 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
7b83f7f9 | 1339 | <div id="step-6a" class="step"> |
19bce4d7 TG |
1340 | <div class="sidebar"> |
1341 | ||
1342 | <p><img | |
1343 | src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/section5-01-use-it-well.png" | |
7b83f7f9 | 1344 | alt="Section 6: Use it Well (1)" /></p> |
19bce4d7 TG |
1345 | |
1346 | </div><!-- /.sidebar --> | |
1347 | <div class="main"> | |
1348 | ||
1349 | <h3>When should I encrypt? When should I sign?</h3> | |
1350 | ||
1351 | <p>The more you can encrypt your messages, the better. If you only encrypt | |
1352 | emails occasionally, each encrypted message could raise a red flag for | |
1353 | surveillance systems. If all or most of your email is encrypted, people | |
1354 | doing surveillance won't know where to start. That's not to say that only | |
1355 | encrypting some of your email isn't helpful -- it's a great start and it | |
1356 | makes bulk surveillance more difficult.</p> | |
1357 | ||
1358 | <p>Unless you don't want to reveal your own identity (which requires other | |
1359 | protective measures), there's no reason not to sign every message, whether or | |
1360 | not you are encrypting. In addition to allowing those with GnuPG to verify | |
1361 | that the message came from you, signing is a non-intrusive way to remind | |
1362 | everyone that you use GnuPG and show support for secure communication. If you | |
1363 | often send signed messages to people that aren't familiar with GnuPG, it's | |
1364 | nice to also include a link to this guide in your standard email signature | |
1365 | (the text kind, not the cryptographic kind).</p> | |
1366 | ||
1367 | </div><!-- End .main --> | |
7b83f7f9 | 1368 | </div><!-- End #step-6a .step --> |
19bce4d7 TG |
1369 | |
1370 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
7b83f7f9 | 1371 | <div id="step-6b" class="step"> |
19bce4d7 TG |
1372 | <div class="sidebar"> |
1373 | ||
1374 | <p><img | |
1375 | src="//static.fsf.org/nosvn/enc-dev0/img/en/screenshots/section5-02-use-it-well.png" | |
7b83f7f9 | 1376 | alt="Section 6: Use it Well (2)" /></p> |
19bce4d7 TG |
1377 | |
1378 | </div><!-- /.sidebar --> | |
1379 | <div class="main"> | |
1380 | ||
1381 | <h3>Be wary of invalid keys</h3> | |
1382 | ||
1383 | <p>GnuPG makes email safer, but it's still important to watch out for invalid | |
1384 | keys, which might have fallen into the wrong hands. Email encrypted with | |
1385 | invalid keys might be readable by surveillance programs.</p> | |
1386 | ||
1387 | <p>In your email program, go back to the first encrypted email that Edward | |
1388 | sent you. Because Edward encrypted it with your public key, it will have a | |
80b64e11 | 1389 | green checkmark a at the top "OpenPGP" button.</p> |
19bce4d7 | 1390 | |
7b83f7f9 | 1391 | <p><b>When using GnuPG, make a habit of glancing at that button. The program |
4227f3fd | 1392 | will warn you there if you get an email signed with a key that can't |
19bce4d7 TG |
1393 | be trusted.</b></p> |
1394 | ||
1395 | </div><!-- End .main --> | |
7b83f7f9 | 1396 | </div><!-- End #step-6b .step --> |
19bce4d7 TG |
1397 | |
1398 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
7b83f7f9 | 1399 | <div id="step-6c" class="step"> |
19bce4d7 TG |
1400 | <div class="main"> |
1401 | ||
1402 | <h3>Copy your revocation certificate to somewhere safe</h3> | |
1403 | ||
1404 | <p>Remember when you created your keys and saved the revocation certificate | |
80b64e11 | 1405 | that GnuPG made? It's time to copy that certificate onto the safest storage that you have -- a flash drive, disk, or hard drive stored in a safe place in your home could work, not on a device you carry with you regularly. The safest way we know is actually to print the revocation certificate and store it in a safe place.</p> |
19bce4d7 TG |
1406 | |
1407 | <p>If your private key ever gets lost or stolen, you'll need this certificate | |
1408 | file to let people know that you are no longer using that keypair.</p> | |
1409 | ||
1410 | </div><!-- End .main --> | |
7b83f7f9 | 1411 | </div><!-- End #step-6c .step --> |
19bce4d7 TG |
1412 | |
1413 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ --> | |
1414 | <div id="step-lost_key" class="step"> | |
1415 | <div class="main"> | |
1416 | ||
1417 | <h3><em>Important:</em> act swiftly if someone gets your private key</h3> | |
1418 | ||
1419 | <p>If you lose your private key or someone else gets ahold | |
1420 | of it (say, by stealing or cracking your computer), it's | |
1421 | important to revoke it immediately before someone else uses | |
1422 | it to read your encrypted email or forge your signature. This | |
1423 | guide doesn't cover how to revoke a key, but you can follow these <a | |
1424 | href="https://www.hackdiary.com/2004/01/18/revoking-a-gpg-key/">instructions</a>. | |
1425 | After you're done revoking, make a new key and send an email to everyone | |
1426 | with whom you usually use your key to make sure they know, including a copy | |
1427 | of your new key.</p> | |
1428 | ||
1429 | </div><!-- End .main --> | |
1430 | </div><!-- End #step-lost_key .step--> | |
1431 | ||
7b83f7f9 | 1432 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ |
19bce4d7 TG |
1433 | <div id="webmail-and-GnuPG" class="step"> |
1434 | <div class="main"> | |
1435 | ||
1436 | <h3>Webmail and GnuPG</h3> | |
1437 | ||
1438 | <p>When you use a web browser to access your email, you're using webmail, | |
1439 | an email program stored on a distant website. Unlike webmail, your desktop | |
1440 | email program runs on your own computer. Although webmail can't decrypt | |
1441 | encrypted email, it will still display it in its encrypted form. If you | |
1442 | primarily use webmail, you'll know to open your email client when you receive | |
1443 | a scrambled email.</p> | |
1444 | ||
1445 | </div><!-- End .main --> | |
1446 | </div><!-- End #webmail-and-GnuPG .step--> | |
1447 | ||
1448 | <!-- ~~~~~~~~~ a div for each step ~~~~~~~~~ | |
7b83f7f9 | 1449 | <div id="step-6d" class="step"> |
19bce4d7 TG |
1450 | <div class="main"> |
1451 | ||
1452 | <h3>Make your public key part of your online identity</h3> | |
1453 | ||
1454 | <p> First add your public key fingerprint to your email signature, then | |
1455 | compose an email to at least five of your friends, telling them you just | |
1456 | set up GnuPG and mentioning your public key fingerprint. Link to this guide | |
1457 | and ask them to join you. Don't forget that there's also an awesome <a | |
1458 | href="infographic.html">infographic to share.</a></p> | |
1459 | ||
1460 | <p class="notes">Start writing your public key fingerprint anywhere someone | |
1461 | would see your email address: your social media profiles, blog, Website, | |
1462 | or business card. (At the Free Software Foundation, we put ours on our | |
1463 | <a href="https://fsf.org/about/staff">staff page</a>.) We need to get our | |
1464 | culture to the point that we feel like something is missing when we see an | |
1465 | email address without a public key fingerprint.</p> | |
1466 | ||
1467 | </div>--><!-- End .main | |
7b83f7f9 | 1468 | </div> End #step-6d .step--> |
1469 | </div></section><!-- End #section6 --> | |
19bce4d7 | 1470 | |
7b83f7f9 | 1471 | <!-- ~~~~~~~~~ Section 7: Next steps ~~~~~~~~~ --> |
116f80c3 | 1472 | <section class="row" id="section6"> |
19bce4d7 TG |
1473 | <div id="step-click_here" class="step"> |
1474 | <div class="main"> | |
0a225228 | 1475 | |
19bce4d7 | 1476 | <h2><a href="next_steps.html">Great job! Check out the next steps.</a></h2> |
bb28ee32 | 1477 | |
19bce4d7 TG |
1478 | </div><!-- End .main --> |
1479 | </div><!-- End #step-click_here .step--> | |
7b83f7f9 | 1480 | </section><!-- End #section7 --> |
bdf319c4 | 1481 | |
19bce4d7 | 1482 | <!-- ~~~~~~~~~ FAQ ~~~~~~~~~ --> |
f44dd62f | 1483 | <!-- When un-commenting this section go to main.css and search |
116f80c3 | 1484 | for /* Guide Sections Background */ then add #faq to the desired color |
19bce4d7 | 1485 | <section class="row" id="faq"><div> |
116f80c3 | 1486 | <div class="sidebar"> |
19bce4d7 | 1487 | |
116f80c3 | 1488 | <h2>FAQ</h2> |
6c495e2d | 1489 | |
19bce4d7 | 1490 | </div> |
116f80c3 | 1491 | <div class="main"> |
19bce4d7 | 1492 | |
116f80c3 ZR |
1493 | <dl> |
1494 | <dt>My key expired</dt> | |
1495 | <dd>Answer coming soon.</dd> | |
6c495e2d | 1496 | |
116f80c3 ZR |
1497 | <dt>Who can read encrypted messages? Who can read signed ones?</dt> |
1498 | <dd>Answer coming soon.</dd> | |
6c495e2d | 1499 | |
19bce4d7 TG |
1500 | <dt>My email program is opening at times I don't want it to open/is now my |
1501 | default program and I don't want it to be.</dt> | |
116f80c3 ZR |
1502 | <dd>Answer coming soon.</dd> |
1503 | </dl> | |
19bce4d7 | 1504 | |
116f80c3 ZR |
1505 | </div> |
1506 | </div> | |
1507 | </section> --><!-- End #faq --> | |
bdf319c4 | 1508 | |
19bce4d7 TG |
1509 | <!-- ~~~~~~~~~ Footer ~~~~~~~~~ --> |
1510 | <footer class="row" id="footer"><div> | |
1511 | <div id="copyright"> | |
1512 | ||
1513 | <h4><a href="https://u.fsf.org/ys"><img | |
1514 | alt="Free Software Foundation" | |
1515 | src="//static.fsf.org/nosvn/enc-dev0/img/fsf-logo.png" /></a></h4> | |
1516 | ||
7b83f7f9 | 1517 | <p>Copyright © 2021 <a |
19bce4d7 TG |
1518 | href="https://u.fsf.org/ys">Free Software Foundation</a>, Inc. <a |
1519 | href="https://my.fsf.org/donate/privacypolicy.html">Privacy Policy</a>. Please | |
1520 | support our work by <a href="https://u.fsf.org/yr">joining us as an associate | |
1521 | member.</a></p> | |
1522 | ||
1523 | <p>The images on this page are under a <a | |
1524 | href="https://creativecommons.org/licenses/by/4.0/">Creative Commons | |
1525 | Attribution 4.0 license (or later version)</a>, and the rest of it is under | |
1526 | a <a href="https://creativecommons.org/licenses/by-sa/4.0">Creative Commons | |
1527 | Attribution-ShareAlike 4.0 license (or later version)</a>. Download the <a | |
f211d856 I |
1528 | href="http://agpl.fsf.org/emailselfdefense.fsf.org/edward/CURRENT/edward.tar.gz"> |
1529 | source code of Edward reply bot</a> by Andrew Engelbrecht | |
a3a9a0ac | 1530 | <andrew@engelbrecht.io> and Josh Drake <zamnedix@gnu.org>, |
19bce4d7 TG |
1531 | available under the GNU Affero General Public License. <a |
1532 | href="http://www.gnu.org/licenses/license-list.html#OtherLicenses">Why these | |
1533 | licenses?</a></p> | |
1534 | ||
1535 | <p>Fonts used in the guide & infographic: <a | |
1536 | href="https://www.google.com/fonts/specimen/Dosis">Dosis</a> by Pablo | |
1537 | Impallari, <a href="http://www.google.com/fonts/specimen/Signika">Signika</a> | |
1538 | by Anna Giedryś, <a | |
1539 | href="http://www.google.com/fonts/specimen/Archivo+Narrow">Archivo | |
1540 | Narrow</a> by Omnibus-Type, <a | |
1541 | href="https://libreplanet.org/wiki/GPG_guide/Graphics_Howto#Pitfalls">PXL-2000</a> | |
1542 | by Florian Cramer.</p> | |
1543 | ||
1544 | <p>Download the <a href="emailselfdefense_source.zip">source package</a> | |
1545 | for this guide, including fonts, image source files and the text of Edward's | |
1546 | messages.</p> | |
1547 | ||
1548 | <p>This site uses the Weblabels standard for labeling <a | |
1549 | href="https://www.fsf.org/campaigns/freejs">free JavaScript</a>. View | |
1550 | the JavaScript <a href="//weblabels.fsf.org/emailselfdefense.fsf.org/" | |
1551 | rel="jslicense">source code and license information</a>.</p> | |
1552 | ||
1553 | </div><!-- /#copyright --> | |
1554 | ||
1555 | <p class="credits">Infographic and guide design by <a rel="external" | |
1556 | href="http://jplusplus.org"><strong>Journalism++</strong><img | |
1557 | src="//static.fsf.org/nosvn/enc-dev0/img/jplusplus.png" | |
1558 | alt="Journalism++" /></a></p><!-- /.credits --> | |
1559 | </div></footer><!-- End #footer --> | |
116f80c3 | 1560 | |
116f80c3 | 1561 | |
f211d856 I |
1562 | <script type="text/javascript" |
1563 | src="//static.fsf.org/nosvn/enc-dev0/js/jquery-1.11.0.min.js"></script> | |
1564 | <script type="text/javascript" | |
1565 | src="//static.fsf.org/nosvn/enc-dev0/js/scripts.js"></script> | |
116f80c3 | 1566 | <!-- Piwik --> |
e609e128 AE |
1567 | <script type="text/javascript"> |
1568 | // @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-2.0-or-later | |
1569 | var _paq = _paq || []; | |
1570 | _paq.push(["trackPageView"]); | |
1571 | _paq.push(["enableLinkTracking"]); | |
1572 | ||
1573 | (function() { | |
1574 | var u = (("https:" == document.location.protocol) ? "https" : "http") + "://"+"piwik.fsf.org//"; | |
1575 | _paq.push(["setTrackerUrl", u+"piwik.php"]); | |
1576 | _paq.push(["setSiteId", "13"]); | |
1577 | var d=document, g=d.createElement("script"), s=d.getElementsByTagName("script")[0]; g.type="text/javascript"; | |
1578 | g.defer=true; g.async=true; g.src=u+"piwik.js"; s.parentNode.insertBefore(g,s); | |
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1580 | // @license-end | |
1581 | </script> | |
1582 | <!-- End Piwik Code --> | |
1583 | <!-- Piwik Image Tracker --> | |
1584 | <noscript><img src="https://piwik.fsf.org//piwik.php?idsite=13&rec=1" style="border:0" alt="" /></noscript> | |
1585 | <!-- End Piwik --> | |
116f80c3 | 1586 | </body> |
bdf319c4 | 1587 | </html> |