DSA_Verification_Operation::DSA_Verification_Operation(const DSA_PublicKey& dsa) : q(dsa.group_q()), y(dsa.get_y()) { powermod_g_p = Fixed_Base_Power_Mod(dsa.group_g(), dsa.group_p()); powermod_y_p = Fixed_Base_Power_Mod(y, dsa.group_p()); mod_p = Modular_Reducer(dsa.group_p()); mod_q = Modular_Reducer(dsa.group_q()); }
/* * Default_ELG_Op Constructor */ Default_ELG_Op::Default_ELG_Op(const DL_Group& group, const BigInt& y, const BigInt& x) : p(group.get_p()) { powermod_g_p = Fixed_Base_Power_Mod(group.get_g(), p); powermod_y_p = Fixed_Base_Power_Mod(y, p); mod_p = Modular_Reducer(p); if(x != 0) powermod_x_p = Fixed_Exponent_Power_Mod(x, p); }