[Cryptography] GHCQ Penetration of Belgacom
ryacko at gmail.com
Wed Dec 24 14:46:33 EST 2014
> | I think it would be very hard to find a backdoor suggested by
> | Norm Hardy. Modify the CPU to detect when two specific floating
> | point numbers are multiplied. When they are, execute the next
> | instruction in privileged mode.
> It's my second-hand understanding that it would take perhaps 3,000
> gates to implement intentional sensitivity to a pre-designed kill
> packet. The addition of 3,000 gates to any current chipset will
> never be found in current hardware, e.g., the iPhone 6 has two
> billion transistors on the system chip.
> Others more knowledgeable welcome to correct my understanding.
3,000 gates might be too high, infact, given the recent BadBIOS malware,
it's entirely possible to alter a CPU's microcode. so 0 gates is possible,
hell, OS-level root kits are also possible
you never know
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