39 	const char *a, *b;          /* The coefficients.  For Twisted Edwards  member
55 	.a   = "0xfffffffeffffffffffffffffffffffffffffffff00000000fffffffffffffffc",
66 	MPI p, a, b;  in sm2_ec_ctx_init()  local
71 	a = mpi_scanval(ecp->a);  in sm2_ec_ctx_init()
73 	if (!p || !a || !b)  in sm2_ec_ctx_init()
108 	mpi_ec_init(ec, ecp->model, ecp->dialect, 0, p, a, b);  in sm2_ec_ctx_init()
117 	mpi_free(a);  in sm2_ec_ctx_init()
285 	if (sm2_z_digest_update(desc, ec->a, pbytes) ||  in sm2_compute_z_digest()
394 	MPI a;  in sm2_set_pub_key()  local
398 	a = mpi_read_raw_data(key, keylen);  in sm2_set_pub_key()
399 	if (!a)  in sm2_set_pub_key()
402 	mpi_normalize(a);  in sm2_set_pub_key()
403 	rc = sm2_ecc_os2ec(ec->Q, a);  in sm2_set_pub_key()
404 	mpi_free(a);  in sm2_set_pub_key()