Horizontal Side Channel Attacks and Countermeasures on the ISW Masking Scheme
A common countermeasure against side channel attacks consists in using the masking scheme originally introduced by Ishai, Sahai and Wagner (ISW) at Crypto 2003, and further generalized by Rivain and Prouff at CHES 2010. The countermeasure is provably secure in the probing model, and it was showed by Duc, Dziembowski and Faust at Eurocrypt 2014 that the proof can be extended to the more realistic noisy leakage model. However the extension only applies if the leakage noise \sigma increases at least linearly with the masking order (n\ which is not necessarily possible in practice.
CHES