| // Copyright 2022 The Pigweed Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| // use this file except in compliance with the License. You may obtain a copy of |
| // the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| // License for the specific language governing permissions and limitations under |
| // the License. |
| #pragma once |
| |
| #include <cstdint> |
| |
| namespace pw::bluetooth::low_energy { |
| |
| // The LE Security Mode of a BLE device determines the possible security |
| // properties of the device. The security mode does not make specific guarantees |
| // about the current security properties of a device's connections; it sets |
| // restrictions on the allowable security properties. See Core Spec v5.2 Vol. 3, |
| // Part C 10.2 for more details. |
| enum class SecurityMode : uint8_t { |
| // In LE Security Mode 1, communication is secured by encryption, and |
| // BLE-based services may specify varying requirements for authentication, key |
| // size, or Secure Connections protection on the encryption keys. |
| kMode1 = 0, |
| |
| // In Secure Connections Only mode, all secure communication must use 128 bit, |
| // authenticated, and LE Secure Connections-generated encryption keys. If |
| // these encryption key properties cannot be satisfied by a device due to |
| // system constraints, any connection involving such a device will not be able |
| // to secure the link at all. This mode does not prevent unencrypted |
| // communication; it merely enforces stricter policies on all encrypted |
| // communication. |
| kSecureConnectionsOnly = 1 |
| }; |
| |
| } // namespace pw::bluetooth::low_energy |
