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Fix issue relate to generating publickey from seed. #110

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Merged
Franziska-Mueller merged 1 commit into from
Dec 17, 2025
Merged

Fix issue relate to generating publickey from seed. #110

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11 changes: 11 additions & 0 deletions k12_and_key_utils.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1277,6 +1277,13 @@ static void table_lookup_fixed_base(point_precomp_t P, unsigned int digit, unsig
}
}

// MSVC (VC2022 17.14 specifically) does not strictly preserve left-to-right evaluation order.
// So turn off the optimization for 2 functions
// - multiply
// - Montgomery_multiply_mod_order
#ifdef _MSC_VER
#pragma optimize( "", off )
#endif
static void multiply(const unsigned long long* a, const unsigned long long* b, unsigned long long* c)
{
unsigned long long u, v, uv;
Expand Down Expand Up @@ -1343,6 +1350,10 @@ static void Montgomery_multiply_mod_order(const unsigned long long* ma, const un
}
}

#ifdef _MSC_VER
#pragma optimize( "", on )
#endif

static void eccnorm(point_extproj_t P, point_t Q)
{ // Normalize a projective point (X1:Y1:Z1), including full reduction

Expand Down