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Anti-Hacking Device Disclosure Number: IPCOM000248536D
Publication Date: 2016-Dec-14
Document File: 2 page(s) / 31K

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The Prior Art Database


Described is the design of an acoustic noise generator.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 72% of the total text.


Anti-Hacking Device

An inventive way of hacking into a computer involves sensing its acoustic emissions. The

process involves sending over known sequences of characters to the targeted computer in order

to calibrate the noise emissions. Once calibrated, a cypher attack is initiated against the target

computer and acoustic emissions monitored and decoded, resulting in compromised passwords.

The proposed concept uses a random noise generator in concert with the noise generated by the

system to thwart such an attempt.

When the computer knows it is being accessed and users are providing secure

information for access, the computer can energize a noise emitting device. This device would be

adjusted to provide sounds similar in frequency and sound power levels as a typical operating

chip. The generated noise emitted by the device would be random in nature. Its purpose is to

mask the noise coming from the chip that contains sensitive information, by interfering with it.

Previous attempts to mitigate the aforementioned problem deal with acoustic shielding among

other techniques. This method has been as follows:

One may expect that placing the machine in a noisy environment will foil the attack.

However, the energy of noise generated in a typical noisy environment (such as outdoors or a

noisy room) is typically concentrated at low frequencies, below 10 kHz. Since the acoustic

leakage is usually present well above this range, such noises can be easily filtered out during the

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