{"id":517163,"date":"2023-01-23T14:00:48","date_gmt":"2023-01-23T19:00:48","guid":{"rendered":"https:\/\/www.shenyangcang.com\/?p=517163"},"modified":"2023-04-12T05:38:46","modified_gmt":"2023-04-12T05:38:46","slug":"vitalik-buterin-privacy-fix-ethereum","status":"publish","type":"post","link":"https:\/\/www.shenyangcang.com\/news\/ethereum\/vitalik-buterin-privacy-fix-ethereum\/","title":{"rendered":"Vitalik Buterin Proposes A Privacy Fix for Ethereum"},"content":{"rendered":"<p><span data-preserver-spaces=\"true\">Vitalik Buterin, the co-founder of Ethereum, recognizes the privacy problem in the most active smart contracting platform. He is proposing a\u00a0<\/span><a class=\"editor-rtfLink\" href=\"https:\/\/vitalik.ca\/general\/2023\/01\/20\/stealth.html\" target=\"_blank\" rel=\"noopener nofollow\"><span data-preserver-spaces=\"true\">stealth address system<\/span><\/a><span data-preserver-spaces=\"true\">\u00a0as a possible fix.<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">Vitalik Buterin&#8217;s idea radically differs from what Tornado Cash, a crypto mixer, and similar platforms offer. Instead of the sender having control, it would be the recipient in charge. This is crucially important because, in ordinary settings, the asset receiver would desire to keep transactions, financial or otherwise, private and away from the public&#8217;s prying eyes.\u00a0<\/span><\/p>\n<div class=\"related-reading-shortcode\">Related Reading: <a href=\"https:\/\/www.shenyangcang.com\/news\/company\/the-blockchain-that-brings-privacy-to-the-masses\/\" target=\"_blank\" rel=\"noopener \">The Blockchain that Brings Privacy to the Masses<\/a><\/div>\n<p><span data-preserver-spaces=\"true\">By default, transactions in Ethereum and other public blockchains can be traced. This characteristic is available for all users, despite the basic levels of encryptions concealing the identity of the sender and receivers.\u00a0<\/span><\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-517167 size-full\" src=\"https:\/\/www.shenyangcang.com\/wp-content\/uploads\/2023\/01\/Ethereum-Prices-.png?resize=1267%2C494\" alt=\"Vitalik Buterin Ethereum Price on January 23\" width=\"1267\" height=\"494\" srcset=\"https:\/\/www.shenyangcang.com\/wp-content\/uploads\/2023\/01\/Ethereum-Prices-.png?w=1267 1267w, https:\/\/www.shenyangcang.com\/wp-content\/uploads\/2023\/01\/Ethereum-Prices-.png?w=460 460w, https:\/\/www.shenyangcang.com\/wp-content\/uploads\/2023\/01\/Ethereum-Prices-.png?w=768 768w, https:\/\/www.shenyangcang.com\/wp-content\/uploads\/2023\/01\/Ethereum-Prices-.png?w=860 860w, https:\/\/www.shenyangcang.com\/wp-content\/uploads\/2023\/01\/Ethereum-Prices-.png?w=750 750w, https:\/\/www.shenyangcang.com\/wp-content\/uploads\/2023\/01\/Ethereum-Prices-.png?w=1140 1140w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\"><\/p>\n<p style=\"text-align: center\">Ethereum Price on January 23| Source: <a href=\"https:\/\/www.tradingview.com\/\" target=\"_blank\" rel=\"noopener nofollow\">ETHUSDT on KuCoin, Trading View<\/a><\/p>\n<h2><span data-preserver-spaces=\"true\">Vitalik Buterin Talks Stealth Addresses<\/span><\/h2>\n<p><span data-preserver-spaces=\"true\">To counter the openness in Ethereum and cushion the privacy of asset receivers, stealth addresses would be created by the sender or receiver. However, the receiver will be the one in charge. At any point in the transfer cycle, the receiver will be free to create a spending key which he can then use to create a \u201cstealth meta-address.\u201d <\/span><\/p>\n<p><span data-preserver-spaces=\"true\">This address is then sent to the sender, who does a small computation and creates a stealth address that belongs to the recipient. The recipient will always be in charge if they send assets to this address.\u00a0<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">Additional cryptographic data will be published on-chain to affirm that the receiver controls the stealth address. A key blinding mechanism is added to break the public link between the sending and receiving addresses due to the additional cryptographic data sent on-chain.<\/span><\/p>\n<div class=\"related-reading-shortcode\">Related Reading: <a href=\"https:\/\/www.shenyangcang.com\/news\/monero\/newly-discovered-monero-xmr-glitch-will-negatively-affect-transactions-privacy\/\" target=\"_blank\" rel=\"noopener \">Newly Discovered Monero (XMR) Glitch Will Negatively Affect Transaction\u2019s Privacy<\/a><\/div>\n<p><span data-preserver-spaces=\"true\">Vitalik also proposes the integration of ZK-SNARKs to boost privacy further when using stealth addresses. Integrating ZK SNARKs would increase the difficulty of linking transactors, a benefit for the receiving address seeking more privacy.<\/span><\/p>\n<h2><span data-preserver-spaces=\"true\">Different from Tornado Cash<\/span><\/h2>\n<p><span data-preserver-spaces=\"true\">Vitalik explains in his research blog that the stealth address system provides a different kind of privacy offered by Tornado Cash. The co-founder notes that Tornado Cash is only suitable for individuals who want to send assets to their addresses. While Tornado Cash is widely popular and used by thousands to obscure ETH and ERC-20 transactions, it cannot hide the receiving address of assets complying with the ERC-721 standard, mainly NFTs.\u00a0<\/span><\/p>\n<p><span data-preserver-spaces=\"true\">In early August 2022, the United States Treasury Department barred U.S. citizens from using the mixer. The Under Secretary of the Treasury for Terrorism and Financial Intelligence, Brian Nelson,\u00a0<\/span><a class=\"editor-rtfLink\" href=\"https:\/\/home.treasury.gov\/news\/press-releases\/jy0916\" target=\"_blank\" rel=\"noopener nofollow\"><span data-preserver-spaces=\"true\">said<\/span><\/a><span data-preserver-spaces=\"true\">\u00a0the Tornado Cash creators had failed to add adequate controls to prevent the tool from being used to launder money. <\/span><\/p>\n<p><span data-preserver-spaces=\"true\">Treasury alleged that North Korean hackers and other agents had used the tool to launder billions of dollars since 2019. Most of the laundered funds came from Decentralized Finance (DeFi) and exchange hacks.\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vitalik Buterin, the co-founder of Ethereum, recognizes the privacy problem in the most active smart contracting platform. He is proposing a\u00a0stealth address system\u00a0as a possible fix. Vitalik Buterin&#8217;s idea radically differs from what Tornado Cash, a crypto mixer, and similar platforms offer. Instead of the sender having control, it would be the recipient in charge. This is crucially important because, in ordinary settings, the asset receiver would desire to keep transactions, financial or otherwise, private and away from the public&#8217;s prying eyes.\u00a0 Related Reading: The Blockchain that Brings Privacy to the Masses By default, transactions in Ethereum and other public blockchains can be traced. This characteristic is available for all users, despite the basic levels of encryptions concealing the identity of the sender and receivers.\u00a0 Ethereum Price on January 23| Source: ETHUSDT on KuCoin, Trading View Vitalik Buterin Talks Stealth Addresses To counter the openness in Ethereum and cushion the privacy of asset receivers, stealth addresses would be created by the sender or receiver. However, the receiver will be the one in charge. At any point in the transfer cycle, the receiver will be free to create a spending key which he can then use to create a \u201cstealth meta-address.\u201d This address is then sent to the sender, who does a small computation and creates a stealth address that belongs to the recipient. The recipient will always be in charge if they send assets to this address.\u00a0 Additional cryptographic data will be published on-chain to affirm that the receiver controls the stealth address. A key blinding mechanism is added to break the public link between the sending and receiving addresses due to the additional cryptographic data sent on-chain. Related Reading: Newly Discovered Monero (XMR) Glitch Will Negatively Affect Transaction\u2019s Privacy Vitalik also proposes the integration of ZK-SNARKs to boost privacy further when using stealth addresses. Integrating ZK SNARKs would increase the difficulty of linking transactors, a benefit for the receiving address seeking more privacy. Different from Tornado Cash Vitalik explains in his research blog that the stealth address system provides a different kind of privacy offered by Tornado Cash. The co-founder notes that Tornado Cash is only suitable for individuals who want to send assets to their addresses. While Tornado Cash is widely popular and used by thousands to obscure ETH and ERC-20 transactions, it cannot hide the receiving address of assets complying with the ERC-721 standard, mainly NFTs.\u00a0 In early August 2022, the United States Treasury Department barred U.S. citizens from using the mixer. The Under Secretary of the Treasury for Terrorism and Financial Intelligence, Brian Nelson,\u00a0said\u00a0the Tornado Cash creators had failed to add adequate controls to prevent the tool from being used to launder money. Treasury alleged that North Korean hackers and other agents had used the tool to launder billions of dollars since 2019. Most of the laundered funds came from Decentralized Finance (DeFi) and exchange hacks.\u00a0<\/p>\n","protected":false},"author":384,"featured_media":517166,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[13625],"tags":[8323,1946,87693,86642,4398],"class_list":["post-517163","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ethereum","tag-eth","tag-ethereum","tag-stealth-addresses","tag-tornado-cash","tag-vitalik-buterin"],"acf":[],"yoast_head":"\n<title>Vitalik Buterin Proposes A Privacy Fix for Ethereum<\/title>\n<meta name=\"description\" content=\"Vitalik Buterin, the co-founder of Ethereum, recognizes the privacy problem in the most active smart contracting platform. 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He is proposing a\u00a0stealth\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.shenyangcang.com\/news\/ethereum\/vitalik-buterin-privacy-fix-ethereum\/\" \/>\n<meta property=\"og:site_name\" content=\"NewsBTC\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/newsbtc\" \/>\n<meta property=\"article:published_time\" content=\"2023-01-23T19:00:48+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-04-12T05:38:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.shenyangcang.com\/wp-content\/uploads\/2023\/01\/Blockchain-Ethereum-Privacy.png\" \/>\n\t<meta property=\"og:image:width\" content=\"960\" \/>\n\t<meta property=\"og:image:height\" content=\"617\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Dalmas Ngetich\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Dalmas_Ngetich\" \/>\n<meta name=\"twitter:site\" content=\"@newsbtc\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dalmas Ngetich\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\/\/www.shenyangcang.com\/news\/ethereum\/vitalik-buterin-privacy-fix-ethereum\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.shenyangcang.com\/news\/ethereum\/vitalik-buterin-privacy-fix-ethereum\/\"},\"author\":{\"name\":\"Dalmas Ngetich\",\"@id\":\"https:\/\/www.shenyangcang.com\/#\/schema\/person\/08a2c46e8c02b51b9464d6e0bf2b1586\"},\"headline\":\"Vitalik Buterin Proposes A Privacy Fix for Ethereum\",\"datePublished\":\"2023-01-23T19:00:48+00:00\",\"dateModified\":\"2023-04-12T05:38:46+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.shenyangcang.com\/news\/ethereum\/vitalik-buterin-privacy-fix-ethereum\/\"},\"wordCount\":493,\"publisher\":{\"@id\":\"https:\/\/www.shenyangcang.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.shenyangcang.com\/news\/ethereum\/vitalik-buterin-privacy-fix-ethereum\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.shenyangcang.com\/wp-content\/uploads\/2023\/01\/Blockchain-Ethereum-Privacy.png?fit=960%2C617\",\"keywords\":[\"ETH\",\"ethereum\",\"Stealth Addresses\",\"Tornado Cash\",\"Vitalik Buterin\"],\"articleSection\":[\"Ethereum\"],\"inLanguage\":\"en-US\",\"copyrightYear\":\"2023\",\"copyrightHolder\":{\"@id\":\"https:\/\/www.shenyangcang.com\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.shenyangcang.com\/news\/ethereum\/vitalik-buterin-privacy-fix-ethereum\/\",\"url\":\"https:\/\/www.shenyangcang.com\/news\/ethereum\/vitalik-buterin-privacy-fix-ethereum\/\",\"name\":\"Vitalik Buterin Proposes A Privacy Fix for Ethereum\",\"isPartOf\":{\"@id\":\"https:\/\/www.shenyangcang.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.shenyangcang.com\/news\/ethereum\/vitalik-buterin-privacy-fix-ethereum\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.shenyangcang.com\/news\/ethereum\/vitalik-buterin-privacy-fix-ethereum\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.shenyangcang.com\/wp-content\/uploads\/2023\/01\/Blockchain-Ethereum-Privacy.png?fit=960%2C617\",\"datePublished\":\"2023-01-23T19:00:48+00:00\",\"dateModified\":\"2023-04-12T05:38:46+00:00\",\"description\":\"Vitalik Buterin, the co-founder of Ethereum, recognizes the privacy problem in the most active smart contracting platform. 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