Apple Encrypted Archive

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File Format
Name Apple Encrypted Archive
Ontology
Extension(s) .aea

Apple Encrypted Archive is a proprietary file format that can compress, encrypt, and sign files. The decrypted and decompressed payload often contains an Apple Archive.[1][2]

iOS 18 firmware images have started to use AEA-encrypted DMG files.[3]

AppleArchive.png

File Information

AEA archive files begin with the hex values "41454131"

References

  1. https://keith.github.io/xcode-man-pages/aea.1.html
  2. https://www.theiphonewiki.com/wiki/Apple_Encrypted_Archive
  3. https://x.com/EliotAndres/status/1800453152938082308
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