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id="dev_page_title">Winter Contest Ends</h1> <div id="dev_page_content"><div class="blog_side_image_wrap"> <img src="/img/tl_card_brick.png" class="blog_side_image"/> </div> <p>The <a href="/crypto_contest">contest</a> to decrypt intercepted traffic of Telegram produced no winners as of March, 1. As promised, today we are publishing the encryption keys necessary to decrypt the traffic.</p> <pre><code>SECRET CHAT: 2e 20 9f 9d 99 c9 fc 8a 3d dc d5 6d 21 26 46 c9 d8 1a 26 f8 ec f7 f2 7e c9 28 65 95 52 dc 1c 21 bb 95 60 b1 d8 5f 94 5f 43 8d 7e 8e 96 fa e6 89 91 a9 90 39 8b df ef 50 22 06 f8 52 80 e6 50 20 62 71 c4 b2 f5 f8 88 4d 83 ae 66 ec fe cd ec 92 26 69 72 5e 85 f9 ea 58 b0 d6 9f 5b 1e b7 68 15 76 5b 12 88 3d 17 f6 62 49 8b 1f 9d 7a 11 94 67 8d d1 ee d6 55 50 d4 51 c0 5e a5 9a 1a eb 8a 8c 7c 44 1b db 96 5a fd cd 85 47 5b f0 8a 1e b8 d6 74 a4 c7 e7 af 19 3f a6 0a ff e5 3b 9f c4 fc ea 59 af f6 72 60 16 6f 40 af 58 95 98 06 0c 22 00 d7 3d be 96 19 56 54 06 74 d2 6b 38 8d c2 a0 97 62 6d e4 10 99 b9 cf d5 0f 56 9d d3 bb 49 86 d5 15 23 86 03 c3 52 67 82 77 5e 53 e9 ba e8 63 58 ed 55 b0 ef ec 69 65 a0 e5 1d e4 b6 6e 5a 3d 5f 9b 9a 20 67 f5 d5 c4 d7 60 14 c6 56 2d 12 1b 0a DC 1: 5e a6 0d a2 9c 90 8e f4 36 d5 48 fe 76 a3 11 f6 66 13 4e 94 bb 11 32 d6 cf fd b0 2f 7b 77 bb 01 d7 42 a4 22 d3 04 e7 d2 fc 5b 32 48 d6 71 eb 18 51 19 99 76 49 46 1a 43 d8 cf cd 8a e2 fe 42 2c 36 d7 05 8b 0c 5e 00 8a 5a bc 35 4f ec 75 b4 10 e1 84 bb cb af ec e3 d6 fd 59 fd 01 83 ef 8b dd 13 50 24 5b 80 09 75 7e c3 c3 08 ba 59 f4 ec c0 87 71 ba 9f 45 8c 15 df 2a cd a5 bc 81 a9 20 fe 42 e2 65 78 02 77 80 11 0e e4 67 f3 40 cf 72 be fc c2 8d 0b ad d9 9e 6e 1a c3 03 71 39 be b9 dd df 7c 63 a6 27 45 ee 8e 00 5e 12 51 51 6c 6a 10 a6 73 3a 10 5d d8 f3 b6 c5 70 fe 91 c2 64 4b d0 74 2d 47 e7 4e 00 cf d5 d3 65 15 2b 48 9c 75 eb a8 96 aa ce 09 49 9b 5e ea 76 06 19 f3 b3 e7 7b af df 5d 68 5e 80 10 48 ec 00 35 90 d3 e5 96 c6 59 a7 44 d8 20 a8 a2 b6 93 64 4f 98 44 23 8e fd DC 2: 63 ab 0d b7 98 e1 78 ef 5f 05 9c e4 84 3b 53 b3 4f 6e d1 d3 8a 6d 59 19 32 26 73 60 c2 e2 fe ee d3 2d 74 35 18 08 ba 04 87 cf 7f d9 87 4b 64 d5 80 06 05 f5 01 56 6d c2 66 7e 2d ef f6 a3 82 3d 31 0e ed 6b 46 4c 11 d5 ec 0f 7b be 64 79 26 87 a9 d3 34 27 d8 8b aa b5 36 8b 95 2f a7 c7 2a a6 bf a9 44 51 c5 c8 06 04 78 d2 64 87 e8 13 f3 f0 9b c9 8c bc 29 01 55 a2 80 e1 e8 4e 74 53 7e 05 22 1b 51 3d 1a c5 61 b3 04 98 c2 2f 71 e3 76 2e 31 bd d8 55 15 4b 3e 34 ed 84 b2 56 d0 bd c6 9a 1a 2a 4b 2f fc 68 8e c4 e3 81 23 6f 07 3f 3a 6b 56 f6 ee 31 e6 aa 0d 49 36 6a 51 79 25 bf b6 40 64 8c e2 14 c8 70 37 cb 70 ad a1 83 ed 1f b9 78 b9 93 0c 7c 0c ed 6d c6 aa c2 d0 da 51 ce ae cf 99 8f 65 eb 5a 42 e6 ff 4a 51 a9 97 da 6e ac e5 63 c1 05 a9 fe d0 da da 43 e3 50 14 fc b1 46 ea DC 3: 16 0c be 58 e1 74 74 f5 f9 8f f8 82 71 ed 57 84 20 49 bd da 17 0e 00 a8 a4 24 71 79 86 1f ef 3e 41 70 31 de c9 c2 19 23 37 fd ec 2f fa 9e 89 29 4f a2 af 69 cf 24 3a 6e 44 5d 89 d2 8b 50 45 26 3c ff e3 d4 4d 7d b4 88 54 8c 87 09 c5 ac 09 5c e6 62 43 73 b5 3e 96 ea f3 62 76 58 1b fd 8a 36 45 65 4a fc 7b ee 7b 13 06 e5 2f 9d 8f cb b9 a7 6f 76 00 f4 9a ab 50 fb 91 e0 2b ce 28 db 95 02 a0 62 33 bb e7 41 13 7b 2c 7e ba 7c d5 87 12 33 de 44 8d 4b 76 af 59 cc 80 42 02 69 56 90 8a 5d 95 0b 3e 8b ef 65 17 fc 79 62 b4 69 1b 21 aa 89 5b 22 f6 33 67 80 d0 22 f7 76 f2 6c 4b af 69 07 0f 2c 3a af 67 6b 74 c0 7f 8c 83 85 85 8e 47 b7 55 42 c1 3d 70 33 9d 87 60 7c f6 8b 99 96 1d af 82 b8 d2 37 c7 a3 fc ac 25 fe 77 f0 29 4d 82 a4 15 89 cb c2 27 ae 4f 16 d6 b8 4c cb de 2a 59 d7 DC 4: b4 aa dc bc 8e e5 6a f4 9f 7b 65 de cd 1c 28 3d f1 58 f6 03 e1 34 9d 63 54 b0 15 a7 b8 a6 45 4e de dd cd e4 1a 54 d7 9b fe 46 05 c7 62 19 d9 7a c0 00 6b e6 72 83 3d 15 00 99 d9 9b 97 c0 4a a8 85 e7 85 3c 3f a4 2f 6a 57 0b 3c b0 2a 97 65 6f bf 4e 0d 93 f7 55 3b 3a 39 a1 1a 0f db 9d 7a df 5b c6 9b 45 9a ea e4 27 92 8c c3 d2 75 53 66 e4 1c 29 f1 14 fc fd e8 c0 c8 12 47 ee 5a 92 f1 bf 1f 6f 8e 95 a5 90 81 37 d6 5d bd 5c 4c 41 61 29 6e 4f 7e 83 e1 b9 ef 00 00 de 25 33 f4 df 1a 94 f0 e7 1c fd 35 c0 75 65 88 ef c5 aa b5 c9 7d 0e e4 6d b7 9f 10 ca 4b f0 c9 c7 2d 30 20 e9 e1 b8 03 de a2 60 4e 3f 59 dc 36 a2 50 f8 52 5e 32 c8 c1 84 87 84 d6 54 42 dd ab b4 1b d6 fe e4 29 d3 70 4e 3e 48 ba 86 80 39 b7 94 3c 31 18 f8 bd 7b d8 89 6b 32 77 5c 89 4a a1 ca 18 ba 1e 6a 87 6a DC 5: 4c 76 1f 87 08 53 54 cb 12 fd 01 bd bd e6 42 d2 6b 47 4b d8 0b 6a eb 9f 24 8b ee 77 1f 8b a5 3f f5 f1 c7 80 05 80 2c 20 29 7c 3c 14 59 2b 5e 7f 69 58 3b 7e 07 37 25 67 3d 18 ac f2 28 43 63 8f a5 41 c1 ba 53 dd eb 3d 36 0d 7b d3 14 f7 f9 83 aa 0c 81 20 89 e0 c7 d7 e9 ef 11 aa 43 ca 54 2a 9f 69 0f 1d 99 ef f6 55 14 71 6d a3 1e c2 75 fb 1c 88 f7 c0 21 64 5d 34 db 3f a4 e7 a9 f0 af 9f 9d 14 a4 3a 49 7c 50 e6 45 24 3a cb a4 a6 2a 35 dd 6c 9c ce 87 24 d1 ff 13 19 15 43 89 a4 8c 39 66 a2 22 df 4e 94 76 e1 89 b5 03 7a 2b 34 e7 39 09 f9 22 5d cb 36 4e ce 37 e7 cf 7d ab b5 8b db 81 c6 c8 f4 c7 7c 3a 22 59 fc e6 32 19 aa 46 d2 95 96 61 61 e6 cc 57 f0 0e 87 5c 7d 5b 87 e7 64 28 c6 03 38 3c 0b a6 5e 4a 21 a3 67 af e5 b3 88 cc 9d 03 98 33 ac c6 87 b4 b6 82 42 c4 41 33 39</code></pre> <p><br/></p> <p>We would like to use this opportunity to thank the users ABC, <a href="https://twitter.com/defusesec">@DefuseSec</a>, <a href="https://twitter.com/hackappcom">@hackappcom</a>, <a href="https://twitter.com/morj">@Morj</a> and <a href="https://telegram.org/blog/crowdsourcing-a-more-secure-future">x7mz</a> who helped us further improve security of the client apps and expand <a href="https://core.telegram.org/mtproto/security_guidelines">guidelines</a> for third-party developers.</p> <p>Since we have no winner in the current challenge, we are going to launch a new competition, with an easier task, but a larger prize. The new competition will allow participants not only to intercept traffic, but to manipulate it as well. We are now building the tools that will enable the contestants to perform all kinds of active attacks. Once the platform is ready later this month, we will announce the new contest on Twitter. Please follow us at <a href="https://twitter.com/telegram">@telegram</a>!</p> <p>March 2, 2014<br><em>The Telegram Team</em></p> </div> </div> <div class="tl_main_share clearfix"> <a href="https://t.me/share/url?url=https%3A%2F%2Ftelegram.org%2Fblog%2Fwinter-contest-ends&text=Our%20%24200%2C000%20contest%20ends%2C%20but%20there%27ll%20be%20a%20bigger%20one" class="tl_telegram_share_btn" id="tl_telegram_share_btn" data-text="Our $200,000 contest ends, but there'll be a bigger one" data-url="https://telegram.org/blog/winter-contest-ends"><i class="tl_telegram_share_icon"></i><span class="tl_telegram_share_label" target="_blank">Forward</span></a> <a href="https://twitter.com/share" class="tl_twitter_share_btn" id="tl_twitter_share_btn" data-text="Our $200,000 contest ends, but there'll be a bigger one" data-url="https://telegram.org/blog/winter-contest-ends" data-via="Telegram">Tweet <span class="tl_twitter_share_cnt"></span></a> </div> </div> <div class="tl_main_recent_news_wrap tlb_other_news_wrap tl_blog_list_page_wrap"> <h3 class="tl_main_recent_news_header"> <a href="/blog">Other News</a> </h3> <div class="tl_main_recent_news_cards clearfix"> <a class="dev_blog_card_link_wrap" href="/blog/video-stickers-better-reactions"><div class="dev_blog_card_wrap"> <img class="dev_blog_card_image" src="https://telegram.org/file/464001234/e805/Z0pNrCJET-E.104373/a38ce74977bc53b064" /> <div class="dev_blog_card_alltext_wrap"> <h4 class="dev_blog_card_title">Video Stickers, Better Reactions and More</h4> <div class="dev_blog_card_lead">This update brings easy-to-make video stickers, better reactions with more compact animations and extra emoji, a button to review unseen…</div> </div> <div class="dev_blog_card_date">Jan 31, 2022</div> </div></a><a class="dev_blog_card_link_wrap" href="/blog/reactions-spoilers-translations"><div class="dev_blog_card_wrap"> <img class="dev_blog_card_image" src="https://telegram.org/file/464001488/d35b/oNi_rR0In0o.124097/c74f7d759893b78bfb" /> <div class="dev_blog_card_alltext_wrap"> <h4 class="dev_blog_card_title">Reactions, Spoilers, Translation and QR Codes</h4> <div class="dev_blog_card_lead">Telegram's 12th update of the year introduces reactions, message translation, themed QR codes, hidden text (spoilers), and more.</div> </div> <div class="dev_blog_card_date">Dec 30, 2021</div> </div></a><a class="dev_blog_card_link_wrap" href="/blog/protected-content-delete-by-date-and-more"><div class="dev_blog_card_wrap"> <img class="dev_blog_card_image" src="https://telegram.org/file/464001572/2/u_lvhH-CjJ0.99595/a7fca60f9c9e6e193c" /> <div class="dev_blog_card_alltext_wrap"> <h4 class="dev_blog_card_title">Protected Content, Delete by Date, Device Management and More</h4> <div class="dev_blog_card_lead">Today's update brings tools to prevent others from saving content from groups and channels, the ability to delete messages for specific…</div> </div> <div class="dev_blog_card_date">Dec 7, 2021</div> </div></a><a class="dev_blog_card_link_wrap" href="/blog/shared-media-scrolling-calendar-join-requests-and-more"><div class="dev_blog_card_wrap"> <img class="dev_blog_card_image" src="https://telegram.org/file/464001930/3/yPTwxfusWZg.174275/3f847742c263cdae99" /> <div class="dev_blog_card_alltext_wrap"> <h4 class="dev_blog_card_title">Hyper-Speed Scrolling and Calendar View for Shared Media, Join Requests, Global Chat Themes on iOS and More</h4> <div class="dev_blog_card_lead">Today's update brings new ways to find memories in shared media with accelerated scrolling…</div> </div> <div class="dev_blog_card_date">Nov 3, 2021</div> </div></a> </div> </div> </div> </div> </div> <div class="footer_wrap"> <div class="footer_columns_wrap footer_desktop"> <div class="footer_column footer_column_telegram"> <h5>Telegram</h5> <div class="footer_telegram_description"></div> Telegram is a cloud-based mobile and desktop messaging app with a focus on security and speed. </div> <div class="footer_column"> <h5><a 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