diff options
Diffstat (limited to 'src/lib/pubkey/sm2/sm2.cpp')
| -rw-r--r-- | src/lib/pubkey/sm2/sm2.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/lib/pubkey/sm2/sm2.cpp b/src/lib/pubkey/sm2/sm2.cpp index 2af888bbc..9ef30d9bf 100644 --- a/src/lib/pubkey/sm2/sm2.cpp +++ b/src/lib/pubkey/sm2/sm2.cpp @@ -83,7 +83,6 @@ class SM2_Signature_Operation final : public PK_Ops::Signature const std::string& ident, const std::string& hash) : m_group(sm2.domain()), - m_base_point(m_group.get_base_point(), m_group.get_order()), m_x(sm2.private_value()), m_da_inv(sm2.get_da_inv()), m_hash(HashFunction::create_or_throw(hash)) @@ -102,12 +101,12 @@ class SM2_Signature_Operation final : public PK_Ops::Signature private: const EC_Group m_group; - Blinded_Point_Multiply m_base_point; const BigInt& m_x; const BigInt& m_da_inv; std::vector<uint8_t> m_za; std::unique_ptr<HashFunction> m_hash; + std::vector<BigInt> m_ws; }; secure_vector<uint8_t> @@ -115,7 +114,7 @@ SM2_Signature_Operation::sign(RandomNumberGenerator& rng) { const BigInt k = BigInt::random_integer(rng, 1, m_group.get_order()); - const PointGFp k_times_P = m_base_point.blinded_multiply(k, rng); + const PointGFp k_times_P = m_group.blinded_base_point_multiply(k, rng, m_ws); const BigInt e = BigInt::decode(m_hash->final()); const BigInt r = m_group.mod_order(k_times_P.get_affine_x() + e); |