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ec: Avoid exposing internal function
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3 changed files with 12 additions and 4 deletions
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@ -313,7 +313,7 @@ static void point_add(u8* r, const u8* p, const u8* q)
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elt_add(ry, s, rx);
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}
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void point_mul(u8* d, const u8* a, const u8* b) // a is bignum
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static void point_mul(u8* d, const u8* a, const u8* b) // a is bignum
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{
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u32 i;
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u8 mask;
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@ -410,6 +410,12 @@ void ec_priv_to_pub(const u8* k, u8* Q)
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point_mul(Q, k, ec_G);
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}
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std::array<u8, 60> ComputeSharedSecret(const u8* private_key, const u8* public_key)
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{
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std::array<u8, 60> shared_secret;
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point_mul(shared_secret.data(), private_key, public_key);
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return shared_secret;
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}
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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