diff options
Diffstat (limited to 'src/lib/pubkey/gost_3410/gost_3410.cpp')
| -rw-r--r-- | src/lib/pubkey/gost_3410/gost_3410.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/lib/pubkey/gost_3410/gost_3410.cpp b/src/lib/pubkey/gost_3410/gost_3410.cpp index 0fcca1b8d..b0c94fb7e 100644 --- a/src/lib/pubkey/gost_3410/gost_3410.cpp +++ b/src/lib/pubkey/gost_3410/gost_3410.cpp @@ -9,6 +9,7 @@ #include <botan/gost_3410.h> #include <botan/internal/pk_ops_impl.h> +#include <botan/internal/point_mul.h> #include <botan/reducer.h> #include <botan/der_enc.h> #include <botan/ber_dec.h> @@ -151,7 +152,7 @@ class GOST_3410_Verification_Operation final : public PK_Ops::Verification_with_ const std::string& emsa) : PK_Ops::Verification_with_EMSA(emsa), m_group(gost.domain()), - m_public_point(gost.public_point()) + m_gy_mul(m_group.get_base_point(), gost.public_point()) {} size_t max_input_bits() const override { return m_group.get_order_bits(); } @@ -162,7 +163,7 @@ class GOST_3410_Verification_Operation final : public PK_Ops::Verification_with_ const uint8_t sig[], size_t sig_len) override; private: const EC_Group m_group; - const PointGFp& m_public_point; + const PointGFp_Multi_Point_Precompute m_gy_mul; }; bool GOST_3410_Verification_Operation::verify(const uint8_t msg[], size_t msg_len, @@ -189,7 +190,7 @@ bool GOST_3410_Verification_Operation::verify(const uint8_t msg[], size_t msg_le const BigInt z1 = m_group.multiply_mod_order(s, v); const BigInt z2 = m_group.multiply_mod_order(-r, v); - const PointGFp R = m_group.point_multiply(z1, m_public_point, z2); + const PointGFp R = m_gy_mul.multi_exp(z1, z2); if(R.is_zero()) return false; |