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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>RSA密钥管理与加密工具</title>
<style>
:root {
--liquid-glass-bg: rgba(249, 249, 251, 0.85);
--liquid-glass-border: rgba(229, 229, 234, 0.5);
--liquid-glass-card: rgba(255, 255, 255, 0.75);
--liquid-glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
--text-primary: #1C1C1E;
--text-secondary: #636366;
--text-tertiary: #AEAEB2;
--accent-primary: #0077FF;
--accent-secondary: #4D9DFF;
--success: #34C759;
--warning: #FF9500;
--error: #FF3B30;
--radius-lg: 16px;
--radius-md: 12px;
--radius-sm: 8px;
--transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
--button-shadow-primary: rgba(0, 119, 255, 0.2);
--button-shadow-primary-hover: rgba(0, 119, 255, 0.3);
--button-shadow-danger: rgba(255, 59, 48, 0.2);
--button-shadow-danger-hover: rgba(255, 59, 48, 0.3);
--button-shadow-secondary: rgba(142, 142, 147, 0.2);
--button-shadow-warning: rgba(255, 149, 0, 0.2);
--button-shadow-warning-hover: rgba(255, 149, 0, 0.3);
}
@media (prefers-color-scheme: dark) {
:root {
--liquid-glass-bg: rgba(28, 28, 30, 0.85);
--liquid-glass-border: rgba(72, 72, 74, 0.5);
--liquid-glass-card: rgba(44, 44, 46, 0.75);
--liquid-glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
--text-primary: #F5F5F7;
--text-secondary: #AEAEB2;
--text-tertiary: #636366;
--accent-primary: #0A84FF;
--accent-secondary: #64D2FF;
--button-shadow-primary: rgba(10, 132, 255, 0.3);
--button-shadow-primary-hover: rgba(10, 132, 255, 0.4);
--button-shadow-danger: rgba(255, 69, 58, 0.3);
--button-shadow-danger-hover: rgba(255, 69, 58, 0.4);
--button-shadow-secondary: rgba(142, 142, 147, 0.3);
--button-shadow-warning: rgba(255, 149, 0, 0.3);
--button-shadow-warning-hover: rgba(255, 149, 0, 0.4);
}
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", sans-serif;
background: var(--liquid-glass-bg);
color: var(--text-primary);
line-height: 1.5;
padding: 24px;
min-height: 100vh;
backdrop-filter: blur(20px);
-webkit-backdrop-filter: blur(20px);
border: 1px solid var(--liquid-glass-border);
border-radius: var(--radius-lg);
background-image: radial-gradient(circle at 30% 30%, rgba(180, 220, 255, 0.1) 0%, transparent 80%);
}
.container { max-width: 1200px; margin: 0 auto; }
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--liquid-glass-border); }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon { width: 40px; height: 40px; background: var(--accent-primary); border-radius: 10px; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 12px rgba(0, 119, 255, 0.2); }
.logo-icon svg { width: 20px; height: 20px; fill: white; }
h1 { font-size: 28px; font-weight: 700; letter-spacing: -0.5px; color: var(--accent-primary); margin-bottom: 4px; }
.col { display: flex; gap: 24px; margin-bottom: 24px; }
@media (max-width: 768px) { .col { flex-direction: column; } }
.panel { background: var(--liquid-glass-card); border: 1px solid var(--liquid-glass-border); border-radius: var(--radius-md); padding: 24px; flex: 1; min-width: 280px; box-shadow: var(--liquid-glass-shadow); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); transition: var(--transition); }
.panel:hover { box-shadow: 0 12px 40px rgba(0,0,0,0.1); }
h2 { font-size: 20px; font-weight: 600; margin-bottom: 20px; color: var(--text-primary); display: flex; align-items: center; gap: 8px; }
h3 { font-size: 18px; font-weight: 600; margin: 24px 0 16px; color: var(--text-primary); padding-bottom: 8px; border-bottom: 1px solid var(--liquid-glass-border); }
label { display: block; margin-top: 16px; font-weight: 500; font-size: 14px; color: var(--text-secondary); }
textarea, input[type="text"], select {
width: 100%; box-sizing: border-box; padding: 12px 14px; margin-top: 8px; border: 1px solid var(--liquid-glass-border); border-radius: var(--radius-sm); background: rgba(255,255,255,0.1); color: var(--text-primary); font-family: inherit; font-size: 14px; transition: var(--transition); resize: vertical; white-space: pre-wrap; word-break: break-all;
}
textarea:focus, input[type="text"]:focus, select:focus { outline: none; border-color: var(--accent-primary); box-shadow: 0 0 0 2px rgba(10,132,255,0.2); }
.status-card { background: rgba(10,132,255,0.1); border: 1px solid rgba(10,132,255,0.2); border-radius: var(--radius-sm); padding: 12px 16px; margin-bottom: 16px; display: flex; align-items: center; gap: 12px; }
.status-card svg { width: 18px; height: 18px; fill: var(--accent-primary); }
.warning-card {
color: var(--error); background: rgba(255,149,0,0.1); border: 1px solid rgba(255,149,0,0.2); border-radius: var(--radius-sm); padding: 12px 16px; margin: 16px 0; display: flex; align-items: center; gap: 12px; }
.warning-card svg { width: 18px; height: 18px; fill: var(--warning); }
.error-card {
color: var(--error); background: rgba(255, 59, 48, 0.1); border: 1px solid rgba(255, 59, 48, 0.2); border-radius: var(--radius-sm); padding: 12px 16px; margin: 16px 0; display: flex; align-items: center; gap: 12px; }
.error-card svg { width: 18px; height: 18px; fill: var(--error); }
.status-text { font-size: 14px; color: var(--text-primary); }
.error-text { font-size: 14px; color: var(--error); }
button { margin-top: 16px; padding: 12px 20px; background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary)); color: white; border: none; border-radius: var(--radius-sm); font-family: inherit; font-size: 14px; font-weight: 500; cursor: pointer; transition: var(--transition); display: inline-flex; align-items: center; gap: 8px; box-shadow: 0 4px 12px var(--button-shadow-primary); }
button.warning { background: linear-gradient(135deg, var(--warning), #ffb74d); box-shadow: 0 4px 12px var(--button-shadow-warning); }
button:hover { opacity: 0.9; transform: translateY(-2px); box-shadow: 0 6px 16px var(--button-shadow-primary-hover); }
button.warning:hover { box-shadow: 0 6px 16px var(--button-shadow-warning-hover); }
button:active { transform: translateY(0); }
button.secondary { background: transparent; color: var(--text-secondary); border: 1px solid var(--liquid-glass-border); box-shadow: 0 2px 6px var(--button-shadow-secondary); }
button.secondary:hover { box-shadow: 0 4px 10px var(--button-shadow-secondary); }
/* Danger：实心红色渐变 + 白色加粗文字（保持字体与字号不变） */
button.danger {
background: linear-gradient(135deg, var(--error), #ff6b60);
color: #fff;
font-weight: 700;
border: none;
border-radius: var(--radius-sm);
font-family: inherit;
font-size: 14px;
cursor: pointer;
transition: var(--transition);
display: inline-flex;
align-items: center;
gap: 8px;
box-shadow: 0 4px 12px var(--button-shadow-danger);
}
button.danger:hover {
opacity: 0.9;
transform: translateY(-2px);
box-shadow: 0 6px 16px var(--button-shadow-danger-hover);
}
hr { border: none; height: 1px; background: var(--liquid-glass-border); margin: 24px 0; }
ul { list-style: none; padding-left: 0; }
li { border-bottom: 1px solid var(--liquid-glass-border); padding: 12px 0; display: flex; justify-content: space-between; align-items: center; }
li:last-child { border-bottom: none; }
.key-item { flex: 1; }
.key-name { font-weight: 500; color: var(--text-primary); margin-bottom: 4px; }
.key-fingerprint { font-size: 13px; color: var(--text-tertiary); }
.key-fingerprint span { color: var(--text-secondary); }
.key-actions { display: flex; gap: 8px; }
.key-actions button { margin-top: 0; padding: 8px 12px; font-size: 13px; }
small { color: var(--text-tertiary); font-size: 13px; display: block; margin-top: 8px; line-height: 1.5; }
footer { margin-top: 24px; font-size: 13px; color: var(--text-tertiary); border-top: 1px solid var(--liquid-glass-border); padding-top: 16px; }
.footer-note {
background: rgba(255, 149, 0, 0.1);
border: 1px solid rgba(255, 149, 0, 0.2);
border-radius: var(--radius-sm);
padding: 12px 16px;
margin-top: 12px;
font-size: 13px;
color: var(--warning);
}
.button-group { display: flex; gap: 12px; margin-top: 16px; }
.icon { width: 18px; height: 18px; fill: currentColor; }
.textarea-container { position: relative; }
textarea { padding-right: 70px; padding-top: 30px; }
.text-action-btn {
position: absolute; background: rgba(255, 255, 255, 0.2); border: none; border-radius: var(--radius-sm); padding: 5px 10px; color: var(--text-primary);
cursor: pointer; display: flex; align-items: center; gap: 4px; font-size: 12px; transition: background 0.2s; z-index: 10; box-shadow: 0 1px 3px var(--button-shadow-secondary);
right: 10px;
}
.text-action-btn:hover { background: rgba(255,255,255,0.3); box-shadow: 0 2px 5px var(--button-shadow-secondary); }
/* 让“粘贴”在上，“复制”在下（DOM顺序也已保持粘贴在复制上方） */
.paste-btn { top: 5px; }
.copy-btn { top: 35px; }
/* 通知样式（跟随光标的小气泡） */
.notification {
position: fixed;
background: rgba(0, 0, 0, 0.85);
color: white;
padding: 8px 16px;
border-radius: var(--radius-sm);
z-index: 1000;
opacity: 0;
transition: opacity 0.3s, transform 0.3s;
pointer-events: none;
transform: translate(-50%, -50%) scale(0.8);
font-size: 14px;
max-width: 90vw;
text-align: center;
box-shadow: 0 4px 12px rgba(0,0,0,0.15);
white-space: nowrap;
width: auto;
}
.notification.show {
opacity: 1;
transform: translate(-50%, -100%) scale(1);
}
</style>
</head>
<body>
<div class="container">
<header>
<div class="logo">
<div class="logo-icon">
<!-- 将标题左侧图标替换为“锁” -->
<svg viewBox="0 0 24 24">
<path d="M18,8A2,2 0 0,1 20,10V20A2,2 0 0,1 18,22H6A2,2 0 0,1 4,20V10C4,8.89 4.9,8 6,8H7V6A5,5 0 0,1 12,1A5,5 0 0,1 17,6V8H18M12,3A3,3 0 0,0 9,6V8H15V6A3,3 0 0,0 12,3Z"></path>
</svg>
</div>
<div><h1>RSA 加密工具</h1></div>
</div>
</header>
<div class="col">
<div class="panel">
<h2>
<svg class="icon" viewBox="0 0 24 24">
<path d="M22,19L22,21L2,21L2,19L22,19M21,7L20,7L20,5C20,3.9 19.1,3 18,3L6,3C4.9,3 4,3.9 4,5L4,7L3,7C2.45,7 2,7.45 2,8L2,16C2,16.55 2.45,17 3,17L21,17C21.55,17 22,16.55 22,16L22,8C22,7.45 21.55,7 21,7M13,7L11,7L11,5L13,5L13,7M9,7L7,7L7,5L9,5L9,7M17,7L15,7L15,5L17,5L17,7M9,15L7,15L7,13L9,13L9,15M13,15L11,15L11,13L13,13L13,15M17,15L15,15L15,13L17,13L17,15M9,11L7,11L7,9L9,9L9,11M13,11L11,11L11,9L13,9L13,11M17,11L15,11L15,9L17,9L17,11Z"></path>
</svg>
自身密钥
</h2>
<div class="status-card">
<svg class="icon" viewBox="0 0 24 24">
<path d="M11,9H13V7H11M12,20C7.59,20 4,16.41 4,12C4,7.59 7.59,4 12,4C16.41,4 20,7.59 20,12C20,16.41 16.41,20 12,20M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2M11,17H13V11H11V17Z"></path>
</svg>
<div class="status-text" id="ownKeyStatus">尚未生成密钥</div>
</div>
<!-- 按钮：红色实心渐变 + 白色加粗 -->
<button id="genKeyBtn" class="danger">
<svg class="icon" viewBox="0 0 24 24">
<path d="M17,13H13V17H11V13H7V11H11V7H13V11H17M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2Z"></path>
</svg>
生成 2048 位 RSA 密钥对
</button>
<!-- 警告卡改为 error 红色 -->
<div class="error-card">
<!--
<svg class="icon" viewBox="0 0 24 24">
<path d="M11,15H13V17H11V15M11,7H13V13H11V7M12,2C6.47,2 2,6.5 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2M12,20A8,8 0 0,1 4,12A8,8 0 0,1 12,4A8,8 0 0,1 20,12A8,8 0 0,1 12,20Z"></path>
</svg>
-->
<div class="error-text"><strong>注意：</strong>若重新生成密钥对，之前的密钥对将立即失效并无法再解密以前的信息。<strong>此操作没有任何确认信息，且无法恢复。</strong></div>
</div>
<div class="error-card">
<!--
<svg class="icon" viewBox="0 0 24 24">
<path d="M11,15H13V17H11V15M11,7H13V13H11V7M12,2C6.47,2 2,6.5 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2M12,20A8,8 0 0,1 4,12A8,8 0 0,1 12,4A8,8 0 0,1 20,12A8,8 0 0,1 12,20Z"></path>
</svg>
-->
<div class="error-text"><strong>您的密钥只保存在本地，请勿清除本网站的浏览数据，否则您的密钥将永久失效且无法恢复！</strong>若浏览数据被删除，您将无法再解密他人用您的旧密钥加密的的信息。<strong>如果您发现旧密钥丢失，请将新生成的公钥发送给他人，同时重新导入他人公钥。</strong></div>
</div>
<label>导出公钥（PEM）</label>
<div class="textarea-container">
<textarea id="ownPublicPem" rows="4" readonly></textarea>
<!-- 已按要求移除右上角按钮 -->
</div>
<div class="button-group">
<button id="copyPubBtn">
<svg class="icon" viewBox="0 0 24 24">
<path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path>
</svg>
复制公钥到剪贴板
</button>
</div>
<hr />
<h3>
<svg class="icon" viewBox="0 0 24 24">
<path d="M18,8A2,2 0 0,1 20,10V20A2,2 0 0,1 18,22H6A2,2 0 0,1 4,20V10C4,8.89 4.9,8 6,8H7V6A5,5 0 0,1 12,1A5,5 0 0,1 17,6V8H18M12,3A3,3 0 0,0 9,6V8H15V6A3,3 0 0,0 12,3Z"></path>
</svg>
加/解密
</h3>
<label>选择加密公钥</label>
<select id="encryptKeySelect">
<option value="">（我的公钥）</option>
</select>
<label>明文 / 要加密的文本</label>
<div class="textarea-container">
<textarea id="plaintext" rows="6" placeholder="解密后的内容将显示在这里 / 输入要加密的明文"></textarea>
<!-- 粘贴在上 -->
<button class="text-action-btn paste-btn" data-target="plaintext">
<svg class="icon" viewBox="0 0 24 24" width="14" height="14">
<path d="M19,20H5V4H7V7H17V4H19M12,2A1,1 0 0,1 13,3A1,1 0 0,1 12,4A1,1 0 0,1 11,3A1,1 0 0,1 12,2M9,4H15V6H9V4M4,8H20V21H4V8Z"></path>
</svg>
粘贴
</button>
<!-- 复制在下 -->
<button class="text-action-btn copy-btn" data-target="plaintext">
<svg class="icon" viewBox="0 0 24 24" width="14" height="14">
<path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path>
</svg>
复制
</button>
</div>
<button id="encryptBtn">
<svg class="icon" viewBox="0 0 24 24">
<path d="M12,17A2,2 0 0,0 14,15C14,13.89 13.1,13 12,13A2,2 0 0,0 10,15A2,2 0 0,0 12,17M18,8A2,2 0 0,1 20,10V20A2,2 0 0,1 18,22H6A2,2 0 0,1 4,20V10C4,8.89 4.9,8 6,8H7V6A5,5 0 0,1 12,1A5,5 0 0,1 17,6V8H18M12,3A3,3 0 0,0 9,6V8H15V6A3,3 0 0,0 12,3Z"></path>
</svg>
加密（使用所选他人公钥）
</button>
<label>密文（Base64）</label>
<div class="textarea-container">
<textarea id="ciphertext" rows="6" placeholder="加密后的内容将显示在这里 / 输入要解密的密文"></textarea>
<!-- 粘贴在上 -->
<button class="text-action-btn paste-btn" data-target="ciphertext">
<svg class="icon" viewBox="0 0 24 24" width="14" height="14">
<path d="M19,20H5V4H7V7H17V4H19M12,2A1,1 0 0,1 13,3A1,1 0 0,1 12,4A1,1 0 0,1 11,3A1,1 0 0,1 12,2M9,4H15V6H9V4M4,8H20V21H4V8Z"></path>
</svg>
粘贴
</button>
<!-- 复制在下 -->
<button class="text-action-btn copy-btn" data-target="ciphertext">
<svg class="icon" viewBox="0 0 24 24" width="14" height="14">
<path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path>
</svg>
复制
</button>
</div>
<button id="decryptBtn">
<svg class="icon" viewBox="0 0 24 24">
<path d="M2,5.27L3.28,4L20,20.72L18.73,22L15.73,19H6A2,2 0 0,1 4,17V10C4,8.9 4.9,8 6,8H8.73L2,5.27M8,15H6V17H8V15M9,15V17H13.73L9,12.27V15M14,10H18C19.1,10 20,10.9 20,12V15.18L18,13.18V12H16V13.18L14,11.18V10M9,10V10.18L7.82,9H6V10H9M18,8V6C18,4.9 17.1,4 16,4H14V6H16V8H14V10H16V12H14V14H16.82L20,17.18V12C20,10.9 19.1,10 18,10H16V8H18Z"></path>
</svg>
解密（使用你的本地私钥）
</button>
</div>
<div class="panel">
<h2>
<svg class="icon" viewBox="0 0 24 24">
<path d="M16 17V19H2V17S2 13 9 13 16 17 16 17M12.5 7.5A3.5 3.5 0 1 0 9 11A3.5 3.5 0 0 0 12.5 7.5M15.94 13A5.32 5.32 0 0 1 18 17V19H22V17S22 13.37 15.94 13M15 4A3.39 3.39 0 0 0 13.07 4.59A5 5 0 0 1 13.07 10.41A3.39 3.39 0 0 0 15 11A3.5 3.5 0 0 0 15 4Z"></path>
</svg>
他人公钥管理
</h2>
<label>添加公钥名称</label>
<input id="newKeyName" type="text" placeholder="例如：Alice 工作密钥">
<label>粘贴 PEM（SubjectPublicKeyInfo）</label>
<div class="textarea-container">
<textarea id="pastePem" rows="6" placeholder="粘贴公钥内容..."></textarea>
<!-- 只有粘贴按钮即可 -->
<button class="text-action-btn paste-btn" data-target="pastePem">
<svg class="icon" viewBox="0 0 24 24" width="14" height="14">
<path d="M19,20H5V4H7V7H17V4H19M12,2A1,1 0 0,1 13,3A1,1 0 0,1 12,4A1,1 0 0,1 11,3A1,1 0 0,1 12,2M9,4H15V6H9V4M4,8H20V21H4V8Z"></path>
</svg>
粘贴
</button>
</div>
<button id="addPemBtn">
<svg class="icon" viewBox="0 0 24 24">
<path d="M19,20H5V4H7V7H17V4H19M9,11H15V15H11V13H9V11M15,3H21V9H15V3M17,5V7H19V5H17M3,3H9V9H3V3M5,5V7H7V5H5M3,15H9V21H3V15M5,17V19H7V17H5Z"></path>
</svg>
添加PEM
</button>
<hr />
<h3>
<svg class="icon" viewBox="0 0 24 24">
<path d="M4,6H20V16H4M20,18A2,2 0 0,0 22,16V6C22,4.89 21.1,4 20,4H4C2.89,4 2,4.89 2,6V16A2,2 0 0,0 4,18H0V20H24V18H20Z"></path>
</svg>
密钥库
</h3>
<ul id="keyList"></ul>
<small>点击删除以移除密钥。本地加密存储（AES-GCM），并显示 SHA-256 指纹末 4 位。</small>
</div>
</div>
<footer>
<div>运行环境：支持 WebCrypto 的浏览器</div>
<div class="footer-note">
<strong>注意：</strong>本网站由 AI 生成，所有加密和解密操作均在本地运行，所有用户数据均只保存在本地。本网站仅供学习与交流 RSA 加密相关知识，用户使用本网站时须遵守法律法规和道德准则，严禁将本网站用于商业用途或非法用途。一切因用户个人行为引发的法律责任由其自行承担。
</div>
</footer>
</div>
<script>
// 数据库和存储配置
const dbName = "rsa_offline_db_v1";
const storeKeys = "externalKeys";
const storeMeta = "meta";
let db = null;
let symmetricKey = null;
let privateKey = null;
let publicKey = null;
// 元素引用
const ownPublicPemTextarea = document.getElementById('ownPublicPem');
const ownKeyStatus = document.getElementById('ownKeyStatus');
const encryptKeySelect = document.getElementById('encryptKeySelect');
const keyList = document.getElementById('keyList');
// 初始化
document.addEventListener('DOMContentLoaded', async () => {
await openDB();
await ensureSymmetricKey();
const loaded = await loadOwnKeysFromStore();
if(!loaded) {
// 首次无本地“我的密钥” => 立即自动生成并提示
await generateOwnKeyPair();
ownKeyStatus.textContent = '已自动生成 RSA-2048 密钥对（私钥已加密存储）';
const pem = await exportOwnPublicPEM();
ownPublicPemTextarea.value = pem;
// 在页面上端弹出提醒（用一个近似位置）
showNotification('已自动生成密钥对', {clientX: window.innerWidth/2, clientY: 60});
} else if(loaded) {
ownKeyStatus.textContent = '已加载本地密钥对（私钥已加密存储）';
const pubSpkiBase64 = await getMeta('own.public.spki');
if(pubSpkiBase64) {
ownPublicPemTextarea.value = spkiToPem(base64ToArrayBuffer(pubSpkiBase64));
}
}
await reloadExternalKeysUI();
// 绑定事件
document.getElementById('genKeyBtn').addEventListener('click', generateKeyPairHandler);
document.getElementById('copyPubBtn').addEventListener('click', copyPublicKeyHandler);
document.getElementById('encryptBtn').addEventListener('click', encryptHandler);
document.getElementById('decryptBtn').addEventListener('click', decryptHandler);
document.getElementById('addPemBtn').addEventListener('click', addPemHandler);
keyList.addEventListener('click', handleKeyListActions);
// 复制按钮事件
document.querySelectorAll('.copy-btn').forEach(btn => {
btn.addEventListener('click', function(e) {
const targetId = this.getAttribute('data-target');
const textarea = document.getElementById(targetId);
copyToClipboard(textarea.value);
showNotification('已复制', e);
});
});
// 粘贴按钮事件
document.querySelectorAll('.paste-btn').forEach(btn => {
btn.addEventListener('click', async function(e) {
const targetId = this.getAttribute('data-target');
const textarea = document.getElementById(targetId);
try {
const text = await navigator.clipboard.readText();
textarea.value = text;
showNotification('已粘贴', e);
} catch (err) {
showNotification('粘贴失败', e);
console.error('粘贴失败:', err);
}
});
});
});
// 在光标位置或目标文本框中央显示通知（按触发来源智能定位）
function showNotification(message, event) {
// 创建通知元素
const notif = document.createElement('div');
notif.className = 'notification';
notif.textContent = message;
document.body.appendChild(notif);
// 默认位置（若无法定位到具体文本框或传入了自定义坐标）
let x = window.innerWidth / 2;
let y = 60;
let placeAtElementCenter = false;
// 如果触发事件来自带 data-target 的按钮（复制/粘贴），优先定位到对应文本框的中央
try {
if (event && event.target && event.target.dataset && event.target.dataset.target) {
const targetId = event.target.dataset.target;
const el = document.getElementById(targetId);
if (el) {
const rect = el.getBoundingClientRect();
x = event.clientX;
y = event.clientY;
placeAtElementCenter = false
} else if (typeof event.clientX === 'number' && typeof event.clientY === 'number') {
x = event.clientX; y = event.clientY;
}
} else if (event && typeof event.clientX === 'number' && typeof event.clientY === 'number') {
// 非复制/粘贴的鼠标事件（保持原来的基于光标的行为）
x = event.clientX;
y = event.clientY;
} else if (event && event.clientX && event.clientY) {
x = event.clientX; y = event.clientY;
}
} catch (e) {
// 保持默认值
}
// 放置并动画显示
notif.style.left = `${x}px`;
if (placeAtElementCenter) {
// 将通知的中心对齐到文本框中央（垂直和水平都居中）
notif.style.top = `${y - 28}px`;
// 初始微缩并居中位置，随后放大到 1
notif.style.transform = 'translate(-50%, -50%) scale(0.8)';
// 强制触发重绘后过渡到最终状态以获得动画
requestAnimationFrame(() => {
requestAnimationFrame(() => {
notif.style.opacity = '1';
notif.style.transform = 'translate(-50%, -50%) scale(1)';
});
});
} else {
// 原先的“在光标上方，且使阴影最下端与光标对齐”的行为保持不变
// 阴影向下扩展约 16px，因此把 top 上移 16px（与之前约定一致）
notif.style.top = `${y - 28}px`;
notif.style.transform = 'translate(-50%, -50%) scale(0.8)';
requestAnimationFrame(() => {
requestAnimationFrame(() => {
notif.style.opacity = '1';
// 使用与 .notification.show 相同的视觉位置（底部中心对齐）
notif.style.transform = 'translate(-50%, -100%) scale(1)';
});
});
}
// 自动隐藏：1 秒后收起并移除
setTimeout(() => {
// 收起动画
notif.style.opacity = '0';
if (placeAtElementCenter) {
notif.style.transform = 'translate(-50%, -50%) scale(0.8)';
} else {
notif.style.transform = 'translate(-50%, -100%) scale(0.8)';
}
setTimeout(() => {
if (notif && notif.parentNode) notif.parentNode.removeChild(notif);
}, 300);
}, 1000);
}
// 复制到剪贴板
async function copyToClipboard(text) {
try { await navigator.clipboard.writeText(text); }
catch (err) { console.error('复制失败:', err); }
}
// 数据库操作
async function openDB() {
return new Promise((resolve, reject) => {
const req = indexedDB.open(dbName, 1);
req.onupgradeneeded = (ev) => {
const idb = ev.target.result;
if(!idb.objectStoreNames.contains(storeKeys)) {
idb.createObjectStore(storeKeys, { keyPath: "fingerprint" });
}
if(!idb.objectStoreNames.contains(storeMeta)) {
idb.createObjectStore(storeMeta, { keyPath: "k" });
}
};
req.onsuccess = () => { db = req.result; resolve(db); };
req.onerror = () => reject(req.error);
});
}
async function getMeta(k) {
return new Promise((res, rej) => {
const tx = db.transaction(storeMeta, "readonly");
const store = tx.objectStore(storeMeta);
const r = store.get(k);
r.onsuccess = () => res(r.result ? r.result.v : null);
r.onerror = () => rej(r.error);
});
}
async function putMeta(k, v) {
return new Promise((res, rej) => {
const tx = db.transaction(storeMeta, "readwrite");
const store = tx.objectStore(storeMeta);
const r = store.put({ k, v });
r.onsuccess = () => res(true);
r.onerror = () => rej(r.error);
});
}
async function ensureSymmetricKey() {
if(symmetricKey) return symmetricKey;
const rawBase64 = await getMeta('symKeyRaw');
if(rawBase64) {
const raw = base64ToArrayBuffer(rawBase64);
symmetricKey = await crypto.subtle.importKey('raw', raw, { name: 'AES-GCM' }, false, ['encrypt','decrypt']);
return symmetricKey;
}
symmetricKey = await crypto.subtle.generateKey({ name:'AES-GCM', length:256 }, true, ['encrypt','decrypt']);
const exported = await crypto.subtle.exportKey('raw', symmetricKey);
await putMeta('symKeyRaw', arrayBufferToBase64(exported));
return symmetricKey;
}
async function saveExternalKey(item) {
const tx = db.transaction(storeKeys, 'readwrite');
const store = tx.objectStore(storeKeys);
return new Promise((res, rej) => {
const r = store.put(item);
r.onsuccess = () => res(true);
r.onerror = () => rej(r.error);
});
}
async function getAllExternalKeysFromDB() {
return new Promise((res, rej) => {
const tx = db.transaction(storeKeys, 'readonly');
const store = tx.objectStore(storeKeys);
const r = store.getAll();
r.onsuccess = () => res(r.result || []);
r.onerror = () => rej(r.error);
});
}
async function deleteExternalKeyDB(fingerprint) {
return new Promise((res, rej) => {
const tx = db.transaction(storeKeys, 'readwrite');
const store = tx.objectStore(storeKeys);
const r = store.delete(fingerprint);
r.onsuccess = () => res(true);
r.onerror = () => rej(r.error);
});
}
// 加解密函数
function arrayBufferToBase64(buffer) {
const bytes = new Uint8Array(buffer);
let binary = '';
for (let i=0; i<bytes.byteLength; i++) binary += String.fromCharCode(bytes[i]);
return btoa(binary);
}
function base64ToArrayBuffer(base64) {
const binary = atob(base64);
const len = binary.length;
const bytes = new Uint8Array(len);
for(let i=0;i<len;i++) bytes[i] = binary.charCodeAt(i);
return bytes.buffer;
}
function buf2hex(buffer) { return [...new Uint8Array(buffer)].map(b => b.toString(16).padStart(2,'0')).join(''); }
function shortFingerprintHex(hex) { return hex.slice(-4); }
function pemToArrayBuffer(pem) {
const b64 = pem.replace(/-----BEGIN PUBLIC KEY-----/g,'').replace(/-----END PUBLIC KEY-----/g,'').replace(/\s+/g,'');
return base64ToArrayBuffer(b64);
}
function spkiToPem(spkiBuffer) {
const b64 = arrayBufferToBase64(spkiBuffer);
const lines = b64.match(/.{1,64}/g)||[];
return "-----BEGIN PUBLIC KEY-----\n"+lines.join("\n")+"\n-----END PUBLIC KEY-----\n";
}
async function spkiFingerprintHex(spkiBuffer) {
const hash = await crypto.subtle.digest('SHA-256', spkiBuffer);
return buf2hex(hash);
}
async function exportOwnPublicPEM() {
if(!publicKey) return '';
const spki = await crypto.subtle.exportKey('spki', publicKey);
return spkiToPem(spki);
}
async function generateOwnKeyPair() {
const kp = await crypto.subtle.generateKey(
{ name: 'RSA-OAEP', modulusLength: 2048, publicExponent: new Uint8Array([0x01,0x00,0x01]), hash: 'SHA-256' },
true,
['encrypt','decrypt']
);
privateKey = kp.privateKey;
publicKey = kp.publicKey;
const spki = await crypto.subtle.exportKey('spki', publicKey);
const pkcs8 = await crypto.subtle.exportKey('pkcs8', privateKey);
const sym = await ensureSymmetricKey();
const iv = crypto.getRandomValues(new Uint8Array(12));
const enc = await crypto.subtle.encrypt({ name:'AES-GCM', iv }, sym, pkcs8);
await putMeta('own.private.enc', arrayBufferToBase64(enc));
await putMeta('own.private.iv', arrayBufferToBase64(iv));
await putMeta('own.public.spki', arrayBufferToBase64(spki));
await putMeta('own.generated', (new Date()).toISOString());
return { spki, pkcs8 };
}
async function loadOwnKeysFromStore() {
const encBase64 = await getMeta('own.private.enc');
const ivBase64 = await getMeta('own.private.iv');
const spkiBase64 = await getMeta('own.public.spki');
if(!encBase64 || !ivBase64 || !spkiBase64) return false;
const enc = base64ToArrayBuffer(encBase64);
const iv = base64ToArrayBuffer(ivBase64);
const spki = base64ToArrayBuffer(spkiBase64);
const sym = await ensureSymmetricKey();
try {
const pkcs8 = await crypto.subtle.decrypt({ name:'AES-GCM', iv: new Uint8Array(iv) }, sym, enc);
privateKey = await crypto.subtle.importKey('pkcs8', pkcs8, { name:'RSA-OAEP', hash:'SHA-256' }, true, ['decrypt']);
publicKey = await crypto.subtle.importKey('spki', spki, { name:'RSA-OAEP', hash:'SHA-256' }, true, ['encrypt']);
return true;
} catch (e) {
console.error("Failed to decrypt/import stored own key:", e);
return false;
}
}
async function addExternalKeyFromSPKI(spkiBuffer, name) {
const fp = await spkiFingerprintHex(spkiBuffer);
const all = await getAllExternalKeysFromDB();
if(all.find(i=>i.fingerprint === fp)) throw new Error("公钥已存在");
const sym = await ensureSymmetricKey();
const iv = crypto.getRandomValues(new Uint8Array(12));
const enc = await crypto.subtle.encrypt({ name:'AES-GCM', iv }, sym, spkiBuffer);
const item = {
fingerprint: fp,
name: name || ("导入密钥 " + new Date().toLocaleDateString()),
createdAt: (new Date()).toISOString(),
spki_enc: arrayBufferToBase64(enc),
iv: arrayBufferToBase64(iv)
};
await saveExternalKey(item);
return item;
}
async function reloadExternalKeysUI() {
const items = await getAllExternalKeysFromDB();
keyList.innerHTML = '';
while(encryptKeySelect.options.length>1) encryptKeySelect.remove(1);
for(const it of items) {
const li = document.createElement('li');
li.innerHTML = `
<div class="key-item">
<div class="key-name">${escapeHtml(it.name)}</div>
<div class="key-fingerprint">指纹: <span>${it.fingerprint.slice(-12)} (…${shortFingerprintHex(it.fingerprint)})</span></div>
</div>
<div class="key-actions">
<button class="secondary use-key" data-fp="${it.fingerprint}">选用</button>
<button class="danger delete-key" data-fp="${it.fingerprint}">删除</button>
</div>
`;
keyList.appendChild(li);
const opt = document.createElement('option');
opt.value = it.fingerprint;
opt.textContent = `${it.name} (${it.fingerprint.slice(-4)})`;
encryptKeySelect.appendChild(opt);
}
}
async function importPemString(pemText, name) {
let spkiBuf;
try {
if(pemText.includes('-----BEGIN PUBLIC KEY-----')) {
spkiBuf = pemToArrayBuffer(pemText);
} else {
spkiBuf = base64ToArrayBuffer(pemText.trim());
}
await crypto.subtle.importKey('spki', spkiBuf, { name:'RSA-OAEP', hash:'SHA-256' }, true, ['encrypt']);
} catch(e) {
throw new Error("无效PEM/DER格式: "+e.message);
}
const item = await addExternalKeyFromSPKI(spkiBuf, name);
return item;
}
async function encryptDataWithPublic(spkiArrayBuffer, plainArrayBuffer) {
const pub = await crypto.subtle.importKey('spki', spkiArrayBuffer, { name:'RSA-OAEP', hash:'SHA-256' }, true, ['encrypt']);
const keyBytes = 2048/8;
const hashLen = 32;
const maxChunk = keyBytes - 2*hashLen - 2;
const plainBytes = new Uint8Array(plainArrayBuffer);
const outChunks = [];
for(let off=0; off<plainBytes.length; off += maxChunk) {
const slice = plainBytes.slice(off, Math.min(off+maxChunk, plainBytes.length));
const enc = await crypto.subtle.encrypt({ name:'RSA-OAEP' }, pub, slice);
outChunks.push(new Uint8Array(enc));
}
let totalLen = outChunks.reduce((s,c)=>s+c.length,0);
const joined = new Uint8Array(totalLen);
let pos=0;
for(const c of outChunks) { joined.set(c,pos); pos+=c.length; }
return joined.buffer;
}
async function decryptDataWithPrivate(cipherArrayBuffer) {
if(!privateKey) throw new Error("未加载私钥");
const blockSize = 2048/8;
const bytes = new Uint8Array(cipherArrayBuffer);
const out = [];
for(let off=0; off<bytes.length; off += blockSize) {
const chunk = bytes.slice(off, Math.min(off+blockSize, bytes.length));
const dec = await crypto.subtle.decrypt({ name:'RSA-OAEP' }, privateKey, chunk);
out.push(new Uint8Array(dec));
}
let total = out.reduce((s,c)=>s+c.length,0);
const joined = new Uint8Array(total);
let p=0;
for(const c of out) { joined.set(c,p); p+=c.length; }
return joined.buffer;
}
// 事件处理器
async function generateKeyPairHandler(e) {
const btn = document.getElementById('genKeyBtn');
btn.disabled = true;
try {
await generateOwnKeyPair();
ownKeyStatus.textContent = '已生成 RSA-2048 密钥对（私钥已加密存储）';
const pem = await exportOwnPublicPEM();
ownPublicPemTextarea.value = pem;
await reloadExternalKeysUI();
showNotification('密钥对已生成', e);
} catch(e) {
showNotification('生成失败: ' + e.message, e);
console.error(e);
} finally {
btn.disabled = false;
}
}
async function copyPublicKeyHandler(e) {
const pem = ownPublicPemTextarea.value;
if(!pem) { showNotification('没有公钥可以复制', e); return; }
try {
await navigator.clipboard.writeText(pem);
showNotification('已复制', e);
} catch (e) {
showNotification('复制失败: ' + e.message, e);
}
}
async function encryptHandler(e) {
try {
const fp = encryptKeySelect.value || null;
let spkiBuf;
if(!fp) {
const pubSpkiBase64 = await getMeta('own.public.spki');
if(!pubSpkiBase64) { showNotification('请先生成密钥', e); return; }
spkiBuf = base64ToArrayBuffer(pubSpkiBase64);
} else {
const items = await getAllExternalKeysFromDB();
const item = items.find(i=>i.fingerprint===fp);
if(!item) { showNotification('选定密钥找不到', e); return; }
const sym = await ensureSymmetricKey();
const enc = base64ToArrayBuffer(item.spki_enc);
const iv = base64ToArrayBuffer(item.iv);
const plain = await crypto.subtle.decrypt({ name:'AES-GCM', iv: new Uint8Array(iv) }, sym, enc);
spkiBuf = plain;
}
const text = document.getElementById('plaintext').value || '';
if(!text) { showNotification('请输入要加密的文本', e); return; }
const encBuf = await encryptDataWithPublic(spkiBuf, new TextEncoder().encode(text));
document.getElementById('ciphertext').value = arrayBufferToBase64(encBuf);
showNotification('加密完成', e);
} catch(e) {
showNotification('加密失败: ' + e.message, e);
console.error(e);
}
}
async function decryptHandler(e) {
try {
const loaded = await loadOwnKeysFromStore();
if(!loaded) { showNotification('未找到本地私钥，请先生成密钥', e); return; }
const b64 = document.getElementById('ciphertext').value.trim();
if(!b64) { showNotification('请输入 Base64 密文', e); return; }
const cipherBuf = base64ToArrayBuffer(b64);
const decBuf = await decryptDataWithPrivate(cipherBuf);
const txt = new TextDecoder().decode(decBuf);
document.getElementById('plaintext').value = txt;
showNotification('解密完成', e);
} catch(e) {
showNotification('解密失败: ' + e.message, e);
console.error(e);
}
}
async function addPemHandler(e) {
const pem = document.getElementById('pastePem').value.trim();
if(!pem) { showNotification('请输入 PEM', e); return; }
try {
await importPemString(pem, document.getElementById('newKeyName').value);
showNotification('导入成功', e);
document.getElementById('pastePem').value = '';
document.getElementById('newKeyName').value = '';
await reloadExternalKeysUI();
} catch(e) {
showNotification('导入失败: '+e.message, e);
}
}
function handleKeyListActions(e) {
if(e.target.classList.contains('use-key')) {
const fp = e.target.dataset.fp;
encryptKeySelect.value = fp;
showNotification('已选用密钥', e);
} else if(e.target.classList.contains('delete-key')) {
const fp = e.target.dataset.fp;
const keyName = e.target.closest('li').querySelector('.key-name').textContent;
deleteExternalKeyDB(fp)
.then(() => { showNotification(`已删除公钥: ${keyName}`, e); reloadExternalKeysUI(); })
.catch(err => { showNotification(`删除失败: ${err.message}`, e); });
}
}
// 辅助函数
function escapeHtml(s) {
return String(s).replace(/[&<>"']/g, m => ({'&':'&','<':'<','>':'>','"':'"',"'":'''})[m]);
}
</script>
</body>
</html>