The goal of a fault injection attack is to extract a secret key which is embedded in a cryptographic device by injecting a fault during execution of the algorithm. In particular, an attacker can extract the master key of the advanced encryption standard (AES) using only a one-byte fault injection. We propose a new countermeasure method resistant to fault injection attacks by checking the differ...

Software for space applications requires significant testing. This paper presents an evaluation of the CoFI testing methodology as applied to actual space software, where deterministic fault cases derived from state-based models were executed using the software-implemented fault injection technique. Different models were used to represent the behavior of embedded software in a real satellite co...

Over the last years, an increasing number of safety-critical tasks have been demanded to computer systems. In particular, safety-critical computer-based applications are hitting markets where costs is a major issue, and thus solutions are required which conjugate fault tolerance with low costs. In this paper, a softwarebased approach for developing safety-critical applications is analyzed. By e...

Software-implemented fault injection is a powerful strategy to test fault-tolerant protocols in distributed environments. In this paper, we present ComFIRM, a communication fault injection tool we developed which minimizes the probe effect on the tested protocols. ComFIRM explores the possibility to insert code directly inside the Linux kernel in the lowest level of the protocol stack through t...

This paper describes a fully automated pre-injection analysis technique aimed at reducing the cost of fault injection campaigns. The technique reduces the fault-space by utilizing assembly-level knowledge of the target system in order to place single bit-flips in registers and memory locations only immediately before these are read by the executed instructions. This way, faults (time-location p...

A new method for injecting faults in the configuration bits of SRAM-based FPGAs is proposed. The main advantages over previous methods are its ability to simultaneously inject several faults or bit-flips in the FPGA by “pipelining” the fault injection process. The design to be tested is divided into modules. The first step in the fault injection technique would be inserting one fault in each of...

High performance computing (HPC) is increasingly subjected to faulty computations. The frequency of silent data corruptions (SDCs) in particular is expected to increase in emerging machines requiring HPC applications to handle SDCs. In this paper we, propose a robust fault injector structured through an LLVM compiler pass that allows simulation of SDCs in various applications. Although fault in...

We propose a fault-injection system (FIS) that can inject faults such as read/write margin failures and soft errors into a SRAM environment. The fault case generator (FCG) generates time-series SRAM failures in 7T/14T or 6T SRAM, and the proposed device model and fault-injection flow are applicable for system-level verification. For evaluation, an abnormal termination rate in vehicle engine con...

This paper attempts to solidify the technical issues involved in the long-standing debate about the representativeness of fault injection as a tool for measuring the dependability of general-purpose software systems. While direct fault injection seems appropriate for evaluating fault tolerant computers, most current software systems are not designed in a way that makes injection of faults direc...