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    <![CDATA[<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>]]>
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    <title>现代密码学的安全归约证明中，困难问题实例是如何嵌入模拟方案的？能否举例说明？</title>
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    <pubDate>Fri, 08 Jul 2022 03:31:32 GMT</pubDate>
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      <![CDATA[<p data-pid="Hq-tmXVR">先来一道题</p><figure data-size="normal"><noscript><img src="https://pic2.zhimg.com/v2-fc6cb00252032b258fa9e5e843d8e201_b.jpg" data-caption="" data-size="normal" data-rawwidth="1907" data-rawheight="1334" data-original-token="v2-2acc163fa74a0d6cb834256787731972" data-default-watermark-src="https://pic1.zhimg.com/v2-cdb74dfc009659a24563a49f51be6b20_b.jpg" class="origin_image zh-lightbox-thumb" width="1907" data-original="https://pic2.zhimg.com/v2-fc6cb00252032b258fa9e5e843d8e201_r.jpg"/></noscript><img src="data:image/svg+xml;utf8,&lt;svg xmlns=&#39;http://www.w3.org/2000/svg&#39; width=&#39;1907&#39; height=&#39;1334&#39;&gt;&lt;/svg&gt;" data-caption="" data-size="normal" data-rawwidth="1907" data-rawheight="1334" data-original-token="v2-2acc163fa74a0d6cb834256787731972" data-default-watermark-src="https://pic1.zhimg.com/v2-cdb74dfc009659a24563a49f51be6b20_b.jpg" class="origin_image zh-lightbox-thumb lazy" width="1907" data-original="https://pic2.zhimg.com/v2-fc6cb00252032b258fa9e5e843d8e201_r.jpg" data-actualsrc="https://pic2.zhimg.com/v2-fc6cb00252032b258fa9e5e843d8e201_b.jpg"/></figure><p data-pid="PQ4tONTy">再来一个答案</p><figure data-size="normal"><noscript><img src="https://pic2.zhimg.com/v2-a99d01f3e60eddd02a15cbff476e37bd_b.jpg" data-caption="" data-size="normal" data-rawwidth="1222" data-rawheight="607" data-original-token="v2-d587cfdad502cd3b70a19fc5a68835c5" data-default-watermark-src="https://pic3.zhimg.com/v2-55b4da99c6ae63dfabf2aee4b5af3fa2_b.jpg" class="origin_image zh-lightbox-thumb" width="1222" data-original="https://pic2.zhimg.com/v2-a99d01f3e60eddd02a15cbff476e37bd_r.jpg"/></noscript><img src="data:image/svg+xml;utf8,&lt;svg xmlns=&#39;http://www.w3.org/2000/svg&#39; width=&#39;1222&#39; height=&#39;607&#39;&gt;&lt;/svg&gt;" data-caption="" data-size="normal" data-rawwidth="1222" data-rawheight="607" data-original-token="v2-d587cfdad502cd3b70a19fc5a68835c5" data-default-watermark-src="https://pic3.zhimg.com/v2-55b4da99c6ae63dfabf2aee4b5af3fa2_b.jpg" class="origin_image zh-lightbox-thumb lazy" width="1222" data-original="https://pic2.zhimg.com/v2-a99d01f3e60eddd02a15cbff476e37bd_r.jpg" data-actualsrc="https://pic2.zhimg.com/v2-a99d01f3e60eddd02a15cbff476e37bd_b.jpg"/></figure><p data-pid="mm5iV_jQ">目的上，它是证明敌手优势最终会归于一个困难问题上。</p><p data-pid="ADrXSR3i">我们可以通过反证法来证明，证明两个问题</p><p data-pid="3GRs3Ls4">1.该困难问题被解决的情况下，该方案会被攻破。</p><p data-pid="zBjh47Fu">2.该方案被攻破的情况下，该困难问题也会被解决。</p><p data-pid="wwigNN_g">如果以上两个条件都成立的话，我们就可以认为是安全性基于该困难问题。</p><p></p>]]>
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