diff options
Diffstat (limited to 'src/math/numbertheory/powm_mnt.cpp')
-rw-r--r-- | src/math/numbertheory/powm_mnt.cpp | 44 |
1 files changed, 19 insertions, 25 deletions
diff --git a/src/math/numbertheory/powm_mnt.cpp b/src/math/numbertheory/powm_mnt.cpp index 421470364..0f674ba03 100644 --- a/src/math/numbertheory/powm_mnt.cpp +++ b/src/math/numbertheory/powm_mnt.cpp @@ -33,13 +33,12 @@ void Montgomery_Exponentiator::set_base(const BigInt& base) SecureVector<word> workspace(z.size()); g[0] = (base >= modulus) ? (base % modulus) : base; - bigint_mul(&z[0], z.size(), &workspace[0], - g[0].data(), g[0].size(), g[0].sig_words(), - R2.data(), R2.size(), R2.sig_words()); - bigint_monty_redc(&z[0], z.size(), - &workspace[0], - modulus.data(), mod_words, mod_prime); + bigint_monty_mul(&z[0], z.size(), + g[0].data(), g[0].size(), g[0].sig_words(), + R2.data(), R2.size(), R2.sig_words(), + modulus.data(), mod_words, mod_prime, + &workspace[0]); g[0].assign(&z[0], mod_words + 1); @@ -52,13 +51,11 @@ void Montgomery_Exponentiator::set_base(const BigInt& base) const size_t y_sig = y.sig_words(); zeroise(z); - bigint_mul(&z[0], z.size(), &workspace[0], - x.data(), x.size(), x_sig, - y.data(), y.size(), y_sig); - - bigint_monty_redc(&z[0], z.size(), - &workspace[0], - modulus.data(), mod_words, mod_prime); + bigint_monty_mul(&z[0], z.size(), + x.data(), x.size(), x_sig, + y.data(), y.size(), y_sig, + modulus.data(), mod_words, mod_prime, + &workspace[0]); g[i].assign(&z[0], mod_words + 1); } @@ -80,12 +77,11 @@ BigInt Montgomery_Exponentiator::execute() const for(size_t k = 0; k != window_bits; ++k) { zeroise(z); - bigint_sqr(&z[0], z.size(), &workspace[0], - x.data(), x.size(), x.sig_words()); - bigint_monty_redc(&z[0], z.size(), - &workspace[0], - modulus.data(), mod_words, mod_prime); + bigint_monty_sqr(&z[0], z.size(), + x.data(), x.size(), x.sig_words(), + modulus.data(), mod_words, mod_prime, + &workspace[0]); x.assign(&z[0], mod_words + 1); } @@ -95,13 +91,11 @@ BigInt Montgomery_Exponentiator::execute() const const BigInt& y = g[nibble-1]; zeroise(z); - bigint_mul(&z[0], z.size(), &workspace[0], - x.data(), x.size(), x.sig_words(), - y.data(), y.size(), y.sig_words()); - - bigint_monty_redc(&z[0], z.size(), - &workspace[0], - modulus.data(), mod_words, mod_prime); + bigint_monty_mul(&z[0], z.size(), + x.data(), x.size(), x.sig_words(), + y.data(), y.size(), y.sig_words(), + modulus.data(), mod_words, mod_prime, + &workspace[0]); x.assign(&z[0], mod_words + 1); } |