Sylvain "tnt" Munaut smunaut
marcan
/ rpi_cam_auth.py
Created
January 25, 2019 07:48
Raspberry Pi Camera V2 DRM authentication example
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import hmac, hashlib | |
| # Data from I²C trace at https://hackaday.io/project/19480-raspberry-pi-camera-v21-reversed/log/52547-i2c-logic-analyzer-trace | |
| # Secret key from VideoCore blob | |
| # serial[8], serial[7:4], serial[3:0] | |
| serial = bytes.fromhex("EE8C196D8301230B59") | |
| # rPi -> camera random number | |
| numIn = bytes.fromhex("5805F3C898C3133154498E082F2E703516F2DBD1") |