diff options
Diffstat (limited to 'src/lib/pubkey/ecdsa/ecdsa.cpp')
| -rw-r--r-- | src/lib/pubkey/ecdsa/ecdsa.cpp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/lib/pubkey/ecdsa/ecdsa.cpp b/src/lib/pubkey/ecdsa/ecdsa.cpp index 72551c8c7..8b0248770 100644 --- a/src/lib/pubkey/ecdsa/ecdsa.cpp +++ b/src/lib/pubkey/ecdsa/ecdsa.cpp @@ -55,9 +55,11 @@ class ECDSA_Signature_Operation : public PK_Ops::Signature_with_EMSA m_order(ecdsa.domain().get_order()), m_base_point(ecdsa.domain().get_base_point(), m_order), m_x(ecdsa.private_value()), - m_mod_order(m_order), - m_emsa(emsa) + m_mod_order(m_order) { +#if defined(BOTAN_HAS_RFC6979_GENERATOR) + m_rfc6979_hash = hash_for_emsa(emsa); +#endif } size_t max_input_bits() const override { return m_order.bits(); } @@ -70,7 +72,9 @@ class ECDSA_Signature_Operation : public PK_Ops::Signature_with_EMSA Blinded_Point_Multiply m_base_point; const BigInt& m_x; Modular_Reducer m_mod_order; - std::string m_emsa; +#if defined(BOTAN_HAS_RFC6979_GENERATOR) + std::string m_rfc6979_hash; +#endif }; secure_vector<uint8_t> @@ -80,7 +84,7 @@ ECDSA_Signature_Operation::raw_sign(const uint8_t msg[], size_t msg_len, const BigInt m(msg, msg_len); #if defined(BOTAN_HAS_RFC6979_GENERATOR) - const BigInt k = generate_rfc6979_nonce(m_x, m_order, m, hash_for_emsa(m_emsa)); + const BigInt k = generate_rfc6979_nonce(m_x, m_order, m, m_rfc6979_hash); #else const BigInt k = BigInt::random_integer(rng, 1, m_order); #endif |