diff options
Diffstat (limited to 'src/lib/math/numbertheory/reducer.cpp')
| -rw-r--r-- | src/lib/math/numbertheory/reducer.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/lib/math/numbertheory/reducer.cpp b/src/lib/math/numbertheory/reducer.cpp index 0468d004b..ec0071eac 100644 --- a/src/lib/math/numbertheory/reducer.cpp +++ b/src/lib/math/numbertheory/reducer.cpp @@ -84,7 +84,8 @@ void Modular_Reducer::reduce(BigInt& t1, const BigInt& x, secure_vector<word>& w t1.add(ws.data(), m_mod_words + 2, BigInt::Positive); - t1.reduce_below(m_modulus, ws); + // Per HAC this step requires at most 2 subtractions + t1.ct_reduce_below(m_modulus, ws, 2); if(x.is_negative() && t1.is_nonzero()) { |