8 #include <botan/blinding.h>
9 #include <botan/numthry.h>
21 m_modulus_bits(modulus.bits()),
26 const BigInt k = blinding_nonce();
31 BigInt Blinder::blinding_nonce()
const
33 return BigInt(m_rng, m_modulus_bits - 1);
39 throw Exception(
"Blinder not initialized, cannot blind");
43 if((BOTAN_BLINDING_REINIT_INTERVAL > 0) && (m_counter > BOTAN_BLINDING_REINIT_INTERVAL))
45 const BigInt k = blinding_nonce();
52 m_e = m_reducer.
square(m_e);
53 m_d = m_reducer.
square(m_d);
62 throw Exception(
"Blinder not initialized, cannot unblind");
Blinder(const BigInt &modulus, RandomNumberGenerator &rng, std::function< BigInt(const BigInt &)> fwd_func, std::function< BigInt(const BigInt &)> inv_func)
BigInt multiply(const BigInt &x, const BigInt &y) const
BigInt unblind(const BigInt &x) const
RandomNumberGenerator & m_rng
BigInt blind(const BigInt &x) const
BigInt square(const BigInt &x) const