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# psa-nac-firmware-reverse-engineering
### Decrypt firmware files
tar xvf PSA_ovip-int-firmware-version_21-08-25-12_NAC-r0_NAC_EUR_WAVE2.tar
bash ./Scripts/decrypt_SWL.sh SWL/ ./Firmware_Keys/WAVE2/21.08.25-12-r0.key
### Decrypt single firmware file
bash ./Scripts/decrypt_smime_file.sh ui-app-data-resource.tar.gz ./Firmware_Keys/WAVE2/21.08.25-12-r0.key
### Mount rootfs (once decrypted)
bash ./Scripts/mount_ubifs_nac.sh rootfs.fsn
ls -l /mnt/ubifs
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