DSA_PrivateKey::DSA_PrivateKey(const AlgorithmIdentifier& alg_id,
                               const secure_vector<uint8_t>& key_bits) :
   DL_Scheme_PrivateKey(alg_id, key_bits, DL_Group::ANSI_X9_57)
   {
   m_y = m_group.power_g_p(m_x);
   }
DSA_PrivateKey::DSA_PrivateKey(const AlgorithmIdentifier& alg_id,
                               const secure_vector<uint8_t>& key_bits) :
   DL_Scheme_PrivateKey(alg_id, key_bits, DL_Group::ANSI_X9_57)
   {
   m_y = m_group.power_g_p(m_x);
   }