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Pardon my ignorance, but would it be possible to use X-rays to read the contents of memory? Say, in a TPM or Secure Enclave? I feel like if you had an accurate
by deegles 10y ago
Pardon my ignorance, but would it be possible to use X-rays to read the contents of memory? Say, in a TPM or Secure Enclave? I feel like if you had an accurate enough beam you could detect if a memory cell is "charged" or not.
- anfractuosity 10y agoI'm not sure about whether you can do that with x-rays, however you might find this paper interesting - 'Reverse engineering Flash EEPROM memories using Scanning Electron Microscopy' - http://www.cl.cam.ac.uk/~sps32/cardis2016_sem.pdf http://www.cl.cam.ac.uk/~sps32/cardis2016_sem.pdf
- ComputerGuru 10y agoThank you for that relevant article and interesting read. I don't know why you're being downvoted, but I did my part to restore the balance.
- goldenkey 10y agoX-rays are ionizing radiation. You would just corrupt the fuck out of the memory.
- simias 10y agoI'm far from an expert on the subject but as far as I know you can only see the structure of the chip (how the transistors are wired together, basically), not the current state of the logic. So you can use this to dump a hardwired ROM but not dynamic content.
- ooqr 10y agoThis isn't exactly what you asked for, but you might be interested in it anyway. https://arstechnica.com/gadgets/2013/02/ice-type-attacks-give-enemies-access-to-your-android-phones-data/ https://arstechnica.com/gadgets/2013/02/ice-type-attacks-giv...