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[CTF(x)]corrupt – 150pts

Description:

defund's method of corrupting images is pretty crude.

題目只給了一張損壞了的圖片

{CTF(x)}[Forensics]corrupt - 150pts

Solution:

把圖片扔上 https://online.officerecovery.com/pixrecovery/後得出

{CTF(x)}[Forensics]corrupt - 150pts

把圖片扔入photoshop , 發現圖片分別在R G B中都有一部份的數值比較高

{CTF(x)}[Forensics]corrupt - 150pts

最後調整成

{CTF(x)}[Forensics]corrupt - 150pts

得出

{CTF(x)}[Forensics]corrupt - 150pts

雖然一定有更好的方法 , 可是因為技術不足 , 只能做成這樣了

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