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It appears that after they discovered the ECC encoding, they simply ignored the ECC data to extract the image. What if some deliberate (correctable) bit errors
by anonymousiam 5y ago
It appears that after they discovered the ECC encoding, they simply ignored the ECC data to extract the image. What if some deliberate (correctable) bit errors were scattered through the image? They have the code that implements the ECC algorithm. If I were them, I would have used it and perhaps even submitted a patch to binwalk so it would automatically recognize/decode the image.
Also, now that they have the image, they could try to override the geofence/fuse protections by running it on an SoC without the fuse blown, and a SDR-based GPS spoofer. Seems like a fun endeavor.
- PragmaticPulp 5y ago> Also, now that they have the image, they could try to override the geofence/fuse protections by running it on an SoC without the fuse blown, It’s a custom SoC. They can’t just buy one off the shelf.
- exikyut 5y agoI might be mistaken, but the geofencing might be based on the specific satellite you were connecting to, correlated with the time of day. And very likely verified/audit-logged on the satellite side too.