superr / oppo_ozip_decrypt

Oppo Firmware .ozip decrypter

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oppo_decrypt_ozip

Oppo/Oneplus .ozip Firmware decrypter

Tested with CPH1707EX, CPH1611EX OTA Zip and Python 3.6

  • ozipdecrypt.py : Decrypt Oppo .ozip to .zip
  • decrypt.py : Decrypts any part of the firmware

Based on python >=3.6

Prerequirement:

sudo apt install python3-pip
pip3 install -r requirements.txt

Usage:

  • OTA OZIP decryption:
./ozipdecrypt.py CPH1707EX_OTA_0070_all.ozip

File will be decrypted as *.zip or boot.img.dec

License:

Share, modify and use as you like, but refer the original author !

Tutorial:

For a tutorial on aes key extraction, head over here.

For extraction of libpatchapply.so or /sbin/recovery, use:

./ofp_libextract.py [your_ofp_file]

If you're getting a recovery.cpio.7z file, extract using 7z to get the /sbin/recovery file.

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Oppo Firmware .ozip decrypter


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