SRP_Calc_client_key_ex
return SRP_Calc_client_key_ex(N, B, g, x, a, u, NULL, NULL);
BIGNUM *SRP_Calc_client_key_ex(const BIGNUM *N, const BIGNUM *B, const BIGNUM *g,
|| (K = SRP_Calc_client_key_ex(s->srp_ctx.N, s->srp_ctx.B,