{"version":"https://jsonfeed.org/version/1.1","title":"苏迟但到的主页","home_page_url":"https://kexohproject.pages.dev","feed_url":"https://kexohproject.pages.dev/json/","description":"<p>你好，欢迎访问个人主页！</p><p>擅长密码学，安全分析，数字水印等技术。</p><p>你可以联系我通过:findmykexin@gmail.com或者知乎私信。</p><p>我的知乎链接：<a href=\"https://www.zhihu.com/people/su-chi-dan-dao\" rel=\"noopener noreferrer\" target=\"_blank\">苏迟但到 - 知乎 (zhihu.com)</a></p><p>我的github链接：<a href=\"https://github.com/kexinoh\" rel=\"noopener noreferrer\" target=\"_blank\">kexinoh</a></p>","icon":"https://kexohcdn.gptapi.cyou/kexohproject/production/images/channel-2e54d141ee195646ca12a9d16507a908.jpg","favicon":"https://kexohcdn.gptapi.cyou/kexohproject/production/images/favicon-340a2925d02a0386f3b954a032834917.jpg","authors":[{"name":"苏迟但到"}],"language":"zh-cn","items":[{"id":"nKGlhnaqNsR","title":"AI 诈骗在全国爆发，骗子用换脸拟声技术佯装好友，受害者十分钟被骗 430 万，从技术角度看如何避免？","content_html":"<p></p><figure data-size=\"normal\"><noscript><img src=\"https://pic1.zhimg.com/v2-caf072a8cc145d37ac3fe31db0e5cfd4_b.jpg\" data-rawwidth=\"1080\" data-rawheight=\"1575\" data-size=\"normal\" data-original-token=\"v2-bba64bd86ee94e5361611998fbc68c24\" data-default-watermark-src=\"https://pic2.zhimg.com/v2-77b9b5d289f768b6b693fd0228ada345_b.jpg\" class=\"origin_image zh-lightbox-thumb\" width=\"1080\" data-original=\"https://pic1.zhimg.com/v2-caf072a8cc145d37ac3fe31db0e5cfd4_r.jpg\"/></noscript><img src=\"data:image/svg+xml;utf8,&lt;svg xmlns=&#39;http://www.w3.org/2000/svg&#39; width=&#39;1080&#39; height=&#39;1575&#39;&gt;&lt;/svg&gt;\" data-rawwidth=\"1080\" data-rawheight=\"1575\" data-size=\"normal\" data-original-token=\"v2-bba64bd86ee94e5361611998fbc68c24\" data-default-watermark-src=\"https://pic2.zhimg.com/v2-77b9b5d289f768b6b693fd0228ada345_b.jpg\" class=\"origin_image zh-lightbox-thumb lazy\" width=\"1080\" data-original=\"https://pic1.zhimg.com/v2-caf072a8cc145d37ac3fe31db0e5cfd4_r.jpg\" data-actualsrc=\"https://pic1.zhimg.com/v2-caf072a8cc145d37ac3fe31db0e5cfd4_b.jpg\"/></figure><p data-pid=\"8ahbvaHD\">这道题我知道答案。</p><p data-pid=\"XAGyapAG\">我举个现实的例子来告诉大家思路。</p><p data-pid=\"YLNSzGhl\">舒肤佳的盒子上也有防伪标志，是几个黑色细线被包装到一层薄膜里面，然后扫描旁边的二维码可以获得对应的出厂图像，只需要简单对比即可。</p><p data-pid=\"Qe-Dbns-\">这个技术的优点在于伪造成本极高，想要几个细小的短线以相同的姿态被塑封进去是困难的，但是舒肤佳的成本却是简单的拍张照片。</p><p data-pid=\"fPxoWLDb\">这里面用关键就是让伪造成本远大于生成成本，这其实是密码学的陷门函数的思想。</p><p data-pid=\"rsXBekbe\">所以在这一类里面还有腾讯的人脸识别技术。它在识别人脸的时候会改变屏幕下面的背景光，而背景光映射到环境中的计算是极高的。腾讯可以验证脸上的光线和屏幕光线变化的规律即可。</p><p data-pid=\"_pLuuNE3\">在现在也只有少数高端显卡支持光追，黑客想要绕过它的成本很高，因此通过这个方案简单的就破解了人脸识别的活体检测技术.</p><p class=\"ztext-empty-paragraph\"><br/></p><p data-pid=\"Po-NbkaU\">总结，我们要在做防伪验证的时候构建不对称优势。</p>","content_text":"\n\n[https://pic1.zhimg.com/v2-caf072a8cc145d37ac3fe31db0e5cfd4_b.jpg][data:image/svg+xml;utf8,&lt;svg\nxmlns=&#39;http://www.w3.org/2000/svg&#39; width=&#39;1080&#39;\nheight=&#39;1575&#39;&gt;&lt;/svg&gt;]\n\n这道题我知道答案。\n\n我举个现实的例子来告诉大家思路。\n\n舒肤佳的盒子上也有防伪标志，是几个黑色细线被包装到一层薄膜里面，然后扫描旁边的二维码可以获得对应的出厂图像，只需要简单对比即可。\n\n这个技术的优点在于伪造成本极高，想要几个细小的短线以相同的姿态被塑封进去是困难的，但是舒肤佳的成本却是简单的拍张照片。\n\n这里面用关键就是让伪造成本远大于生成成本，这其实是密码学的陷门函数的思想。\n\n所以在这一类里面还有腾讯的人脸识别技术。它在识别人脸的时候会改变屏幕下面的背景光，而背景光映射到环境中的计算是极高的。腾讯可以验证脸上的光线和屏幕光线变化的规律即可。\n\n在现在也只有少数高端显卡支持光追，黑客想要绕过它的成本很高，因此通过这个方案简单的就破解了人脸识别的活体检测技术.\n\n\n\n\n总结，我们要在做防伪验证的时候构建不对称优势。","date_published":"2023-05-22T13:00:20.000Z","_microfeed":{"web_url":"https://kexohproject.pages.dev/i/ai-430-nKGlhnaqNsR/","json_url":"https://kexohproject.pages.dev/i/nKGlhnaqNsR/json/","rss_url":"https://kexohproject.pages.dev/i/nKGlhnaqNsR/rss/","guid":"nKGlhnaqNsR","status":"published","itunes:title":"New Article Title for iTunes","date_published_short":"Mon May 22 2023","date_published_ms":1684760420000}}],"_microfeed":{"microfeed_version":"0.1.2","base_url":"https://kexohproject.pages.dev","categories":[{"name":"Education","categories":[{"name":"Language Learning"}]},{"name":"Technology"}],"subscribe_methods":[{"name":"RSS","type":"rss","url":"https://kexohproject.pages.dev/rss/","image":"https://kexohproject.pages.dev/assets/brands/subscribe/rss.png","enabled":true,"editable":false,"id":"4KlfbtkEfzy"},{"name":"JSON","type":"json","url":"https://kexohproject.pages.dev/json/","image":"https://kexohproject.pages.dev/assets/brands/subscribe/json.png","enabled":true,"editable":false,"id":"DVFm7TYiNSq"}],"description_text":"你好，欢迎访问个人主页！\n\n擅长密码学，安全分析，数字水印等技术。\n\n你可以联系我通过:findmykexin@gmail.com或者知乎私信。\n\n我的知乎链接：苏迟但到 - 知乎 (zhihu.com)\n\n我的github链接：kexinoh","copyright":"©2024","itunes:type":"episodic","items_sort_order":"newest_first"}}