SonarSnoop: active acoustic side-channel attacks

Acoustic Side-Channel Attacks on Printers

We examine the problem of acoustic emanations of printers. We present a novel attack that recovers what a dotmatrix printer processing English text is printing based on a record of the sound it makes, if the microphone is close enough to the printer. In our experiments, the attack recovers up to 72 % of printed words, and up to 95 % if we assume contextual knowledge about the text, with a micro...

A Sound for a Sound: Mitigating Acoustic Side Channel Attacks on Password Keystrokes with Active Sounds

Keyboard acoustic side channel attacks have been shown to utilize the audio leakage from typing on the keyboard to infer the typed words up to a certain degree of accuracy. Researchers have continued to improve upon the accuracy of such attacks by employing different techniques and attack vectors such as feature extraction and classification, keyboard geometry and triangulation. While research ...

Side channel parameter characteristics of code injection attacks

Embedded systems are suggestive targets for code injection attacks in the recent years. Software protection mechanisms, and in general computers, are not usually applicable in embedded systems since they have limited resources like memory and process power. In this paper we investigate side channel characteristics of embedded systems and their applicability in code injection attack detection. T...

EMpowering Side-Channel Attacks

Algebraic Side-Channel Attacks

In 2002, algebraic attacks using overdefined systems of equations have been proposed as a potentially very powerful cryptanalysis technique against block ciphers. However, although a number of convincing experiments have been performed against certain reduced algorithms, it is not clear wether these attacks can be successfully applied in general and to a large class of ciphers. In this paper, w...