Double Counting in $2^t$-ary RSA Precomputation Reveals the Secret Exponent

Masahiro Kaminaga, Hideki Yoshikawa, Toshinori Suzuki

A new fault attack, double counting attack (DCA), on the precomputation of $2^t$-ary modular exponentiation for a classical RSA digital signature (i.e., RSA without the Chinese rem…