adb + hash

[andro75]

Hello everyone, I would like to use the adb tool (android debug bridge) to perform android backups, does anyone know if there is the possibility of creating logical and physical copies with the commands (backup and pull of adb or dd and dcfldd for linux) and at the same time have hash the original and the copy executed?
Can you report the syntax?
Thank you!

 

[ocnbrze]

Hello everyone, I would like to use the adb tool (android debug bridge) to perform android backups, does anyone know if there is the possibility of creating logical and physical copies with the commands (backup and pull of adb or dd and dcfldd for linux) and at the same time have hash the original and the copy executed?
Can you report the syntax?
Thank you!

backup of what is the question. is the device rooted? or is this more of a development question?

 

[andro75]

Hello, they are two different things, with adb and the abckup and pull commands it is not necessary to root the device and make a logical copy, while if you want to make a physical copy with dd you need to root the device

 

[bcrichster]

Your best bet with Android backups is usually to install a custom recovery like TWRP (Team Win Recovery Project) and manually make the backups thru that. Nowadays, you don't necessarily need a Rooted device to do so, just an unlocked bootloader in order to install said custom recovery. Attention, Verizon branded devices CAN NOT be Rooted or bootloader unlocked. ..BUT you CAN sometimes bring an unlocked & Rooted device to VZW with their BYOD program. That being said, you usually still need a Rooted device (for permission purposes) to make backups thru adb function anyways.. especially being as you simply CANNOT easily make backups from a phone powered down and/or not booted into the normal system without Root (booted) or custom recovery

 

[andro75]

Hi, I'm talking about another use, the backup I mean is a logical or physical backup that can be used as evidence in court for which it is necessary to "crystallize" the backup with a hash to verify that the copy is the same as the original , the speech is quite complex, but what I need is
-how to backup with adb and backup command (is it possible to calculate the hash?)
-how to backup with adb and pull command (is it possible to calculate the hash?)
-how to backup with dd or dcdfldd (can you calculate hash?)
These are the standards used for this type of business.