AEA decryption doesn't work on temporary directories on non-MacOS systems

[Jonathan-David7]

What happened?

AEA decryption using ipsw fw aea <aea_encrypted_dmg> doesn't work on temporary directories on non-MacOS systems.
Tested on Linux, decrypting from /tmp didn't work.
Here's the output from my machine:

$ file /tmp/jon/092-09224-209.dmg.aea
/tmp/jon/092-09224-209.dmg.aea: data
$ ipsw fw aea -o . /tmp/jon/092-09224-209.dmg.aea
   ⨯ failed to parse AEA: failed to parse AEA: open /tmp/jon/092-09224-209.dmg.aea: no such file or directory

How can we reproduce this?

1. Extract an AEA-encrypted DMG (.dmg.aea) file from an IPSW/OTA update file.
2. Move the AEA DMG file to a temporary directory (could be anything in /tmp on Linux).
3. Try to decrypt the AEA DMG file from the temporary directory (to anywhere, it doesn't matter): ipsw fw aea /tmp/<path_to_aea_dmg>.

ipsw version

3.1.565

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Additional context

No response

[Hamm0udx]

Please make a video with the steps. I am a big fan of your work, but I did not understand the method.

[blacktop]

hmm on linux all this is doing is a Golang os.Open

ipsw/pkg/aea/decrypt.go

Line 355 in 3e9ffe1

f, err := os.Open(in)

[arpan-joardar]

same happening in windows as well

[blacktop]

Does it happen when you use wls?

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