WeChall - Illuminati
Challenge
Illuminati (Stegano) We found a document from the Illuminati, which is told to contain the hidden password to enter their vault. They are known to be masters of steganography, but maybe you can figure the password out for us. Good luck! gizmore
"A place to gather, a place to hide, should be well hidden and plain in sight. Where should you start how to begin, if nothings here except a thin phrase of text and random words, are you still lost does the brain hurts?"
Solution
挑战附带了一个自定义字体文件 sometimes.ttf 和 CSS 文件
some.css。CSS 中通过 5 个无效的 font-weight
声明拼出 wrong。
sometimes.ttf 实际上是一个 SFD (SplineFont)
格式的字体文件，其中的句号字符（.）被修改了。
1 | ❯ file sometimes.ttf |
解法步骤： 1. 下载
https://www.wechall.net/challenge/illuminati/sometimes.ttf
2. 用 FontForge 打开该字体文件 3. 查看 period/句号字符（U+002E） 4. 该
glyph 内部绘有密码文本 ILLUMOSATMO