22 	MPI xa;	/* Value is guaranteed to be set. */  member
30 	mpi_free(ctx->xa);  in dh_clear_ctx()
31 	memset(ctx, 0, sizeof(*ctx));  in dh_clear_ctx()
36  *	ya = g^xa mod p; [RFC2631 sec 2.1.1]
38  *	ZZ = yb^xa mod p; [RFC2631 sec 2.1.1]
42 	/* val = base^xa mod p */  in _compute_val()
43 	return mpi_powm(val, base, ctx->xa, ctx->p);  in _compute_val()
53 	return (p_len < 1536) ? -EINVAL : 0;  in dh_check_params_length()
75 	return 0;  in dh_set_params()
87 	if (crypto_dh_decode_key(buf, len, &params) < 0)  in dh_set_secret()
90 	if (dh_set_params(ctx, &params) < 0)  in dh_set_secret()
93 	ctx->xa = mpi_read_raw_data(params.key, params.key_size);  in dh_set_secret()
94 	if (!ctx->xa)  in dh_set_secret()
97 	return 0;  in dh_set_secret()
124 	if (mpi_cmp_ui(y, 1) < 1 || mpi_cmp(y, ctx->p) >= 0)  in dh_is_pubkey_valid()
129 		MPI val = mpi_alloc(0);  in dh_is_pubkey_valid()
146 		if (ret != 0)  in dh_is_pubkey_valid()
150 	return 0;  in dh_is_pubkey_valid()
157 	MPI base, val = mpi_alloc(0);  in dh_compute_value()
158 	int ret = 0;  in dh_compute_value()
164 	if (unlikely(!ctx->xa)) {  in dh_compute_value()
190 	if (sign < 0)  in dh_compute_value()