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+---
+title: 签名(安全)
+slug: Glossary/Signature/Security
+tags:
+ - Cryptography
+ - Glossary
+ - Privacy
+ - Security
+translation_of: Glossary/Signature/Security
+---
+<p><strong>签名</strong>或<em>数字签名</em>是 {{glossary("protocol","协议")}},表明消息是真实的。</p>
+
+<p>从给定消息的{{glossary("hash")}},<strong>签名过程</strong>首先使用实体的私有{{glossary("key")}}生成链接到签名实体的数字签名。</p>
+
+<p>收到消息后的<strong>验证过程</strong></p>
+
+<ul>
+ <li><em>验证发件人</em><em> - </em>使用发件人的公钥来{{glossary("decryption","解码")}}签名并恢复只能用发件人的私钥创建的哈希</li>
+ <li><em>检查消息完整性 - </em>将哈希与接收到的文档中新计算的哈希进行比较(如果文档被篡改,两个哈希将不同)</li>
+</ul>
+
+<p>如果私钥被泄密或收件人被欺骗地给出错误的公钥,系统就会失败。</p>
+
+<h2 id="了解更多">了解更多</h2>
+
+<h3 id="基础知识">基础知识</h3>
+
+<ul>
+ <li>{{Interwiki("wikipedia", "Digital signature")}} on Wikipedia</li>
+ <li>See {{glossary("digest")}}, {{glossary("encryption")}}</li>
+</ul>
+
+<h3 id="技术参考">技术参考</h3>
+
+<ul>
+ <li><a href="/zh-CN/docs/Web/Security/Information_Security_Basics">信息安全基础​​​​​​​</a></li>
+</ul>