diff options
Diffstat (limited to 'src/lib/pubkey/dsa/dsa.cpp')
| -rw-r--r-- | src/lib/pubkey/dsa/dsa.cpp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/lib/pubkey/dsa/dsa.cpp b/src/lib/pubkey/dsa/dsa.cpp index c419eec97..706722d72 100644 --- a/src/lib/pubkey/dsa/dsa.cpp +++ b/src/lib/pubkey/dsa/dsa.cpp @@ -83,9 +83,11 @@ class DSA_Signature_Operation : public PK_Ops::Signature_with_EMSA m_q(dsa.group_q()), m_x(dsa.get_x()), m_powermod_g_p(dsa.group_g(), dsa.group_p()), - m_mod_q(dsa.group_q()), - m_emsa(emsa) + m_mod_q(dsa.group_q()) { +#if defined(BOTAN_HAS_RFC6979_GENERATOR) + m_rfc6979_hash = hash_for_emsa(emsa); +#endif } size_t max_input_bits() const override { return m_q.bits(); } @@ -97,7 +99,9 @@ class DSA_Signature_Operation : public PK_Ops::Signature_with_EMSA const BigInt& m_x; Fixed_Base_Power_Mod m_powermod_g_p; Modular_Reducer m_mod_q; - std::string m_emsa; +#if defined(BOTAN_HAS_RFC6979_GENERATOR) + std::string m_rfc6979_hash; +#endif }; secure_vector<uint8_t> @@ -111,7 +115,7 @@ DSA_Signature_Operation::raw_sign(const uint8_t msg[], size_t msg_len, #if defined(BOTAN_HAS_RFC6979_GENERATOR) BOTAN_UNUSED(rng); - const BigInt k = generate_rfc6979_nonce(m_x, m_q, i, hash_for_emsa(m_emsa)); + const BigInt k = generate_rfc6979_nonce(m_x, m_q, i, m_rfc6979_hash); #else const BigInt k = BigInt::random_integer(rng, 1, m_q); #endif |