Hardware attack on RSA implementation

Researchers at the University of Michigan have succeeded in accessing the private RSA key used by an embedded processor by manipulating the power supply to the processor. The attack targets the calculation of RSA signatures using the FWE (fixed window exponentiation) algorithm, which is used, for example, in the OpenSSL cryptographic library. The attack was carried out on a SPARC-based Leon3 Soc embedded processor, which runs on an FPGA from Xilinx and is, according to the researchers, a representative embedded system.

Click here to read the complete University of Michigan white paper about this subject.

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