CTF新手必看：3种奇葩JS加密解密实战（附在线工具）

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VIP免费原创最新推荐文章于 2026-05-04 05:46:24 发布 211 阅读 AI 写同款· GEO 优化 ›

CTF密码学-加解密总结零基础学黑客，搜索公众号：白帽子左一密码学基本简介密码学（在西欧语文中，源于希腊语kryptós“隐藏的”，和gráphein“书写”）是研究如何隐密地传递信息的学科。在现代特别指对信息以及其传输的数学性研究，常被认为是数学和计算机科学的分支，和信息论也密切相关。著名的密码学者Ron Rivest解释道：“密码学是关于如何在敌人存在的环境中通讯”，自工程学的角度，这相当于密码学与纯数学的异同。密码学是信息安全等相关议题，如认证、访问控制的核心。密码学的首要目的是隐藏信息的涵义，并不是隐藏信息的存阅读详情

CTF新手必看：3种奇葩JS加密解密实战指南

第一次参加CTF比赛时，我盯着屏幕上那串由表情符号组成的代码完全摸不着头脑。直到一位前辈轻描淡写地说："直接扔进Console运行就行"，才恍然大悟原来这就是传说中的AAencode。这种"原来如此"的顿悟感，正是CTF比赛中JavaScript加密解密的魅力所在。

对于刚接触CTF的新手来说，JavaScript加密就像是一道道精心设计的谜题，看似复杂的外表下往往藏着简单的解法。本文将带你系统掌握三种最具特色的JS加密方式——AAencode、Jsfuck和jjencode，从识别特征到实战解密，手把手教你破解这些"奇葩"加密。

1. 认识三种特殊JS加密

在CTF的Web题目中，JavaScript加密常以各种"面目全非"的形式出现。不同于常见的Base64、AES等标准加密，这三种加密方式更像是代码的"行为艺术"。

1.1 AAencode：用表情包写代码

AAencode可能是最"可爱"的加密方式了。它将JavaScript代码转换为一串颜文字表情，比如：

(ﾟ∀ﾟ)ﾉ♨ヽ(ﾟ∀ﾟ)ﾉ

这种加密的特点是：

大量使用日语字符和表情符号
通常以(ﾟ∀ﾟ)开头
保留了代码的可执行性

识别技巧：如果看到一堆"笑脸"、"音符"等颜文字组合，极可能就是AAencode。

1.2 Jsfuck：六字符编程艺术

Jsfuck堪称最极简的编程语言，仅用6个字符[]()!+就能表达任何JavaScript代码。例如：

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Jsfuck的特点包括：