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Results tagged with roca
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user 59345
ROCA is an acronym for "Return of the Coppersmith Attack" — a vulnerability in the RSALib cryptographic software library thought to be used in millions of smart cards and other devices.
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How ROCA get the polynomial used with coppersmith
One of the important part of the attack is to find $f$ such as $f(x) \equiv 0\bmod p$.
First, you reduce $f(x)= x + (M^{-1} \bmod N) * (65537^{a} \bmod M)$ modulo $N$, to get a smaller coefficient (w …
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