{"id":110438,"date":"2025-10-06T12:01:57","date_gmt":"2025-10-06T11:01:57","guid":{"rendered":"https:\/\/investx.fr\/pt\/?p=110438"},"modified":"2025-10-06T12:01:58","modified_gmt":"2025-10-06T11:01:58","slug":"a-nsa-esta-a-tentar-comprometer-a-seguranca-das-criptomoedas","status":"publish","type":"post","link":"https:\/\/investx.fr\/pt\/noticias-cripto\/a-nsa-esta-a-tentar-comprometer-a-seguranca-das-criptomoedas\/","title":{"rendered":"A NSA est\u00e1 a tentar comprometer a seguran\u00e7a das criptomoedas ?"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"criptografia-pos-quantica-protecao-ou-manipulacao\">Criptografia p\u00f3s-qu\u00e2ntica : Prote\u00e7\u00e3o ou manipula\u00e7\u00e3o?<\/h2>\n\n\n\n<p>Enquanto a comunidade blockchain se movimenta para proteger as suas redes contra a amea\u00e7a da computa\u00e7\u00e3o qu\u00e2ntica, as suspeitas sobre <strong>o envolvimento da NSA<\/strong> reacendem velhos receios. <strong>Peter Todd<\/strong>, especialista em <a href=\"https:\/\/investx.fr\/pt\/aprender-criptomoedas\/cripto\/\">criptomoedas<\/a> reconhecido, afirma que a ag\u00eancia de informa\u00e7\u00f5es americana n\u00e3o procura tanto proteger as comunica\u00e7\u00f5es quanto <strong>introduzir uma backdoor criptogr\u00e1fica.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">Good read.<br><br>tl;dr: the NSA is clearly looking to backdoor crypto again with the rollout of &quot;quantum secure&quot; algorithms.<br><br>The obvious way to implement them is AND: traditional AND quantum secure. So you need to break both.<br><br>The NSA is trying to remove that seatbelt: quantum-only. <a href=\"https:\/\/t.co\/PwbLXKDEQr\">https:\/\/t.co\/PwbLXKDEQr<\/a><\/p>&mdash; Peter Todd (@peterktodd) <a href=\"https:\/\/twitter.com\/peterktodd\/status\/1975003328540238040?ref_src=twsrc%5Etfw\">October 6, 2025<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u00abA abordagem sensata consistiria em combinar algoritmos tradicionais com algoritmos p\u00f3s-qu\u00e2nticos de forma h\u00edbrida. A NSA pressiona para uma vers\u00e3o exclusivamente qu\u00e2ntica, facilitando uma potencial compromiss\u00e3o\u00bb, declara Todd.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"qual-e-o-problema-com-uma-criptografia-puramente-quantica\">Qual \u00e9 o problema com uma criptografia puramente qu\u00e2ntica ?<\/h2>\n\n\n\n<p>Atualmente, a abordagem <strong>h\u00edbrida<\/strong> \u00e9 privilegiada pelas comunidades <strong>open source<\/strong> como a do <strong><a href=\"https:\/\/investx.fr\/pt\/aprender-criptomoedas\/cripto\/bitcoin\/\">Bitcoin<\/a><\/strong>. Esta combina um <strong>algoritmo comprovado (ECDSA, RSA)<\/strong> e um <strong>algoritmo p\u00f3s-qu\u00e2ntico (Kyber, Dilithium)<\/strong>. O objetivo \u00e9 tornar qualquer ataque <strong>mais complexo<\/strong>, necessitando quebrar ambos os esquemas.<\/p>\n\n\n\n<p>Contudo, a NSA pressionaria por algoritmos <strong>exclusivamente p\u00f3s-qu\u00e2nticos no IETF.<\/strong> Um sistema n\u00e3o h\u00edbrido elimina esta redund\u00e2ncia de seguran\u00e7a. Se o algoritmo escolhido for enfraquecido, voluntariamente ou n\u00e3o, todo o edif\u00edcio criptogr\u00e1fico desmorona. Um cen\u00e1rio ideal para um ator com acesso privilegiado, como uma ag\u00eancia de informa\u00e7\u00f5es.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"o-historico-conflituoso-entre-a-nsa-e-a-criptografia-civil\">O hist\u00f3rico conflituoso entre a NSA e a criptografia civil<\/h2>\n\n\n\n<p>A preocupa\u00e7\u00e3o expressa por Peter Todd insere-se numa longa tradi\u00e7\u00e3o de desconfian\u00e7a relativamente ao papel da NSA na evolu\u00e7\u00e3o dos padr\u00f5es criptogr\u00e1ficos. Nos anos 90, tinha <strong>tentado impor o chip Clipper,<\/strong> com acesso governamental \u00ablegal\u00bb. Mais recentemente, foi acusada <strong>de ter introduzido vulnerabilidades<\/strong> em padr\u00f5es aprovados pelo NIST.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">New blog post &quot;MODPOD: The collapse of IETF&#39;s protections for dissent.&quot; <a href=\"https:\/\/t.co\/HoVy41bBy9\">https:\/\/t.co\/HoVy41bBy9<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/ietf?src=hash&amp;ref_src=twsrc%5Etfw\">#ietf<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/objections?src=hash&amp;ref_src=twsrc%5Etfw\">#objections<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/censorship?src=hash&amp;ref_src=twsrc%5Etfw\">#censorship<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/hybrids?src=hash&amp;ref_src=twsrc%5Etfw\">#hybrids<\/a> &#8212; Note that there&#39;s useful action here that you can take by &quot;Tuesday October 7 (in any time zone)&quot;.<\/p>&mdash; Daniel J. Bernstein (@hashbreaker) <a href=\"https:\/\/twitter.com\/hashbreaker\/status\/1975000146619629616?ref_src=twsrc%5Etfw\">October 6, 2025<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<p>Por outro lado, uma proposta batizada <strong>MODPOD<\/strong>, levada no seio do <strong>IETF<\/strong>, visaria redefinir as regras de governa\u00e7\u00e3o dos grupos de trabalho. O risco principal: fazer passar uma norma <a href=\"https:\/\/investx.fr\/pt\/aprender-criptomoedas\/\">criptogr\u00e1fica<\/a> enfraquecida sem real oposi\u00e7\u00e3o, eliminando as obje\u00e7\u00f5es consideradas \u00abincivis\u00bb ou \u00abn\u00e3o construtivas\u00bb.<\/p>\n\n\n\n<p>Para resumir, eis o que \u00e9 preciso reter :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A criptografia p\u00f3s-qu\u00e2ntica \u00e9 <strong>necess\u00e1ria<\/strong>&#8230; mas n\u00e3o a qualquer pre\u00e7o<\/li>\n\n\n\n<li>A proposta de algoritmos unicamente qu\u00e2nticos suscita uma <strong>preocupa\u00e7\u00e3o leg\u00edtima<\/strong> entre os especialistas<\/li>\n\n\n\n<li>A ind\u00fastria deve privilegiar padr\u00f5es <strong>abertos, auditados e h\u00edbridos<\/strong><\/li>\n\n\n\n<li>O debate n\u00e3o \u00e9 apenas t\u00e9cnico: \u00e9 tamb\u00e9m <strong>pol\u00edtico<\/strong>, <strong>estrat\u00e9gico<\/strong> e relaciona-se com a <strong>ciberseguran\u00e7a nacional<\/strong><\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/investx.fr\/go-bitget\/charles\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Compre as suas criptomoedas na Bitget e ganhe 10 d\u00f3lares !<\/a><\/div>\n<\/div>\n\n\n\n<p><strong>Sobre o mesmo assunto :<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/investx.fr\/pt\/noticias-cripto\/por-que-e-melhor-investir-em-solana-do-que-em-ethereum\/\"><a href=\"https:\/\/investx.fr\/pt\/noticias-cripto\/por-que-e-melhor-investir-em-solana-do-que-em-ethereum\/\">Por que \u00e9 melhor investir em Solana do que em Ethereum ?<\/a><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/investx.fr\/pt\/noticias-cripto\/ia-a-inflacao-da-tecnologia-esta-prestes-a-estourar-uma-bolha-de-mil-milhoes\/\">A infla\u00e7\u00e3o da IA est\u00e1 prestes a estourar uma bolha de mil milh\u00f5es ?<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/investx.fr\/pt\/noticias-cripto\/tres-ia-fazem-previsoes-sobre-o-preco-do-xrp-em-2025-descubra-o-que-previram\/\">Tr\u00eas IA fazem previs\u00f5es sobre o pre\u00e7o do XRP em 2025 : Descubra o que previram<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Segundo o famoso desenvolvedor de Bitcoin, a NSA estaria a tentar impor algoritmos criptogr\u00e1ficos exclusivamente &#8220;qu\u00e2nticos&#8221;, pondo em risco a seguran\u00e7a das criptomoedas. Uma situa\u00e7\u00e3o que poderia ter um impacto devastador no mercado.<\/p>\n","protected":false},"author":32,"featured_media":110437,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","faq_titre":"","questions_frequentes":"","custom_permalink":""},"categories":[45,6],"tags":[],"class_list":["post-110438","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blockchain-noticias","category-noticias-cripto"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ser\u00e1 que a NSA representa uma amea\u00e7a \u00e0s criptomoedas ?<\/title>\n<meta name=\"description\" content=\"Peter Todd alerta para uma nova tentativa da NSA de enfraquecer os standards de criptomoedas p\u00f3s-qu\u00e2nticas. 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