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216 lines
14 KiB
HTML
216 lines
14 KiB
HTML
<!DOCTYPE html>
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<html class="">
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<title>Crowdsourcing a More Secure Future</title>
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<meta property="og:title" content="Crowdsourcing a More Secure Future">
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<ul class="nav navbar-nav navbar-right"><li class="dropdown top_lang_select"><a class="dropdown-toggle" onclick="return dropdownClick(this, event)" href="#"><i class="dev_top_lang_icon"></i>EN <b class="minicaret"></b></a>
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<ul class="dropdown-menu"><li class="chosen "><a href="?setln=en">English</a></li><li class="long "><a href="?setln=id">Bahasa Indonesia</a></li><li class="long "><a href="?setln=ms">Bahasa Melayu</a></li><li class=""><a href="?setln=de">Deutsch</a></li><li class=""><a href="?setln=es">Español</a></li><li class=""><a href="?setln=fr">Français</a></li><li class=""><a href="?setln=it">Italiano</a></li><li class=""><a href="?setln=nl">Nederlands</a></li><li class=""><a href="?setln=uz">O‘zbek</a></li><li class=""><a href="?setln=pl">Polski</a></li><li class="long "><a href="?setln=pt-br">Português (Brasil)</a></li><li class=""><a href="?setln=tr">Türkçe</a></li><li class=""><a href="?setln=be">Беларуская</a></li><li class=""><a href="?setln=ru">Русский</a></li><li class=""><a href="?setln=uk">Українська</a></li><li class=""><a href="?setln=ar">العربية</a></li><li class=""><a href="?setln=fa">فارسی</a></li><li class=""><a href="?setln=ko">한국어</a></li></ul></li><li class="navbar-twitter hidden-xs"><a href="https://twitter.com/telegram" target="_blank" data-track="Follow/Twitter" onclick="trackDlClick(this, event)"><i class="icon icon-twitter"></i> Twitter</a></li></ul>
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<li class=""><a href="/faq">FAQ</a></li>
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<li class=""><a href="/apps">Apps</a></li>
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<li class="hidden-xs "><a href="//core.telegram.org/api">API</a></li>
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<li class="hidden-xs "><a href="//core.telegram.org/mtproto">Protocol</a></li>
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<a href="/blog" class="side_blog_header">Recent News</a>
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<div class="side_blog_entries">
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<a href="/blog/my-profile-and-15-more" class="side_blog_entry">
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<div class="side_blog_date">Apr 25</div>
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<div class="side_blog_title">My Profile, Recommended Channels and 15 More Features</div>
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</a><a href="/blog/sticker-maker" class="side_blog_entry">
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<div class="side_blog_date">Apr 14</div>
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<div class="side_blog_title">Sticker Editor — Create Your Own Stickers</div>
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</a><a href="/blog/telegram-business" class="side_blog_entry">
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<div class="side_blog_date">Mar 31</div>
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<div class="side_blog_title">Introducing Telegram Business</div>
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</a><a href="/blog/monetization-for-channels" class="side_blog_entry">
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<div class="side_blog_date">Mar 31</div>
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<div class="side_blog_title">Sharing Revenue with Channel Owners</div>
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</a><a href="/blog/february2024" class="side_blog_entry">
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<div class="side_blog_date">Feb 29</div>
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<div class="side_blog_title">Stories for Groups and 8 More Features</div>
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</a><a href="/blog/new-saved-messages-and-9-more" class="side_blog_entry">
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<div class="side_blog_date">Jan 31</div>
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<div class="side_blog_title">Saved Messages 2.0, One-Time Voice Messages and 8 More Features</div>
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</a><a href="/blog/calls-and-bots" class="side_blog_entry">
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<div class="side_blog_date">Dec 31</div>
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<div class="side_blog_title">Colorful Calls, Thanos Snap Effect, and Better Bots</div>
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</a>
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</div>
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</div>
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</div></div>
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<div id="dev_page_content_wrap" class=" ">
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<div class="dev_page_bread_crumbs"></div>
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<h1 id="dev_page_title">Crowdsourcing a More Secure Future</h1>
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<div id="dev_page_content"><div class="blog_side_image_wrap">
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<img src="/img/tl_card_castle.png" class="blog_side_image"/>
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</div>
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<blockquote>
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<p><strong>UPD:</strong> See <a href="https://core.telegram.org/bug-bounty">this page</a> for the latest details about the <a href="https://core.telegram.org/bug-bounty">Telegram Bug Bounty Program</a>.</p>
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</blockquote>
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<p>A few days ago we launched a <a href="http://telegram.org/crypto_contest"><strong>contest</strong></a> to improve Telegram's security and are delighted to already have the first results. A <a href="http://habrahabr.ru">Russian IT-community</a> user identified a potentially vulnerable spot in our secret chat implementation. While this would not help him decipher the traffic and win <a href="http://telegram.org/crypto_contest">the contest</a>, his achievement deserves a notice — and a big prize.</p>
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<blockquote>
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<p>The habrahabr user <a href="http://habrahabr.ru/users/x7mz/">x7mz</a> had discovered that in case the Telegram server could be seized by a malicious third party, it could send different nonce numbers to each of the clients participating in a secret chat.</p>
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<p>These nonce numbers were introduced to add more randomness to the secret chat keys, mostly because of possible undiscovered vulnerabilities of the random generators on mobile devices (for example, one such vulnerability was found this August in <a href="http://android-developers.blogspot.ru/2013/08/some-securerandom-thoughts.html">android phones</a>).</p>
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<p>As was pointed out, this solution would have also made it possible for the visual representations of the shared secret key to be identical in case of a man-in-the-middle attack — provided such attack was done by the seized server. Obviously, the server has been under Telegram's control all this time, so this theoretical threat never had a chance to come to life.</p>
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</blockquote>
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<p>The developer who found the potential weakness has earned a reward of <strong>$100,000</strong>. We have contacted him to find out how he would like to collect his prize.</p>
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<p>A similar reward awaits anyone who finds viable ways of compromising <a href="https://core.telegram.org/mtproto">MTProto’s</a> security (and there is an outstanding reward of $200,000 for <a href="http://telegram.org/crypto_contest">deciphering Telegram traffic</a>). All submissions to <strong>security@telegram.org</strong> which result in a change of code or configuration are eligible for bounties, ranging from <strong>$500</strong> to <strong>$100,000</strong> or more, depending on the severity of the issue.</p>
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<p>This story showcases the importance of keeping the <a href="https://core.telegram.org/mtproto">protocol specification</a> and <a href="http://telegram.org/source">source code</a> open — this way thousands of bright minds from all over the world can help us find potential vulnerabilities and improve the protocol.</p>
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<p>Let’s keep on looking for any weak spots. Together we can make Telegram unbreakable.</p>
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<p>December 21, 2013<br><em>The Telegram Team</em></p>
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</div>
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</div>
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<div class="tl_main_share clearfix">
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<a href="https://t.me/share/url?url=https%3A%2F%2Ftelegram.org%2Fblog%2Fcrowdsourcing-a-more-secure-future&text=A%20guy%20from%20Russia%20just%20earned%20%24100%2C000.%20Crowdsourcing%20a%20More%20Secure%20Future" class="tl_telegram_share_btn" id="tl_telegram_share_btn" data-text="A guy from Russia just earned $100,000. Crowdsourcing a More Secure Future" data-url="https://telegram.org/blog/crowdsourcing-a-more-secure-future"><i class="tl_telegram_share_icon"></i><span class="tl_telegram_share_label" target="_blank">Forward</span></a>
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</div>
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</div>
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<div class="tl_main_recent_news_wrap tlb_other_news_wrap tl_blog_list_page_wrap">
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<h3 class="tl_main_recent_news_header">
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<a href="/blog">Other News</a>
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</h3>
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<div class="tl_main_recent_news_cards clearfix">
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<a class="dev_blog_card_link_wrap" href="/blog/my-profile-and-15-more"><div class="dev_blog_card_wrap">
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<img class="dev_blog_card_image" src="https://telegram.org/file/400780400283/2/u3yTafRoh-g.259708/f2ec7d02b0bf09876e" />
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<div class="dev_blog_card_alltext_wrap">
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<h4 class="dev_blog_card_title">My Profile, Recommended Channels and 15 More Features</h4>
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<div class="dev_blog_card_lead">This month we've added more than 15 new features, including recommended channels, a way to view your own profile and display your channel…</div>
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</div>
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<div class="dev_blog_card_date">Apr 25, 2024</div>
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</div></a><a class="dev_blog_card_link_wrap" href="/blog/sticker-maker"><div class="dev_blog_card_wrap">
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<img class="dev_blog_card_image" src="https://telegram.org/file/400780400906/1/nG_ME-jFfII.256820/2569601ad1ecf4c3c2" />
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<div class="dev_blog_card_alltext_wrap">
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<h4 class="dev_blog_card_title">Sticker Editor — Create Your Own Stickers</h4>
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<div class="dev_blog_card_lead">Starting today, anyone can quickly create stickers and entire sticker sets using a new powerful editor — without leaving Telegram.</div>
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</div>
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<div class="dev_blog_card_date">Apr 14, 2024</div>
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</div></a><a class="dev_blog_card_link_wrap" href="/blog/telegram-business"><div class="dev_blog_card_wrap">
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<img class="dev_blog_card_image" src="https://telegram.org/file/400780400268/1/6Avx2xeE-E8.239216/5a7f21012854ea61ce" />
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<div class="dev_blog_card_alltext_wrap">
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<h4 class="dev_blog_card_title">Introducing Telegram Business</h4>
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<div class="dev_blog_card_lead">Starting today, anyone can turn their Telegram account into a business account – and get access to business features, such as opening hours, location, quick replies, automated messages…</div>
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</div>
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<div class="dev_blog_card_date">Mar 31, 2024</div>
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</div></a><a class="dev_blog_card_link_wrap" href="/blog/monetization-for-channels"><div class="dev_blog_card_wrap">
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<img class="dev_blog_card_image" src="https://telegram.org/file/400780400191/1/EVk7lrjHV1k.216056/76e92be4b951903eeb" />
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<div class="dev_blog_card_alltext_wrap">
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<h4 class="dev_blog_card_title">Sharing Revenue with Channel Owners</h4>
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<div class="dev_blog_card_lead">Today, we're introducing one of the most generous reward systems in the history of social media. Telegram channel owners can now receive 50% of the revenue from ads displayed in their…</div>
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</div>
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<div class="dev_blog_card_date">Mar 31, 2024</div>
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</div></a>
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</div>
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<h5>Telegram</h5>
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Telegram is a cloud-based mobile and desktop messaging app with a focus on security and speed.
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