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An asymmetric (e.g. public-key) cryptosystem, based on modular exponentiation with big exponents and modulus. RSA can be used both for signature and encryption with proper paddings.
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How ROCA get the polynomial used with coppersmith
I'm trying to understand the ROCA attack on RSA from Matus Nemec et al. but I'm stuck on how they goes from the constraint they have expressed has:
$$f(x) = x ∗ M' + (65537^{a'} \mod M') \pmod p$$
To …