Strengthening Sequential Side-Channel Attacks Through Change Detection

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...

Thwarting Cache Side-Channel Attacks Through Dynamic Software Diversity

We explore software diversity as a defense against side-channel attacks by dynamically and systematically randomizing the control flow of programs. Existing software diversity techniques transform each program trace identically. Our diversity based technique instead transforms programs to make each program trace unique. This approach offers probabilistic protection against both online and off-l...

Soft Analytical Side-Channel Attacks

In this paper, we introduce a new approach to side-channel key recovery, that combines the low time/memory complexity and noise tolerance of standard (divide and conquer) differential power analysis with the optimal data complexity of algebraic side-channel attacks. Our fundamental contribution for this purpose is to change the way of expressing the problem, from the system of equations used in...