1 /****************************************************************************** 2 * 3 * Copyright 2019 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 #pragma once 19 20 #include <array> 21 22 namespace bluetooth { 23 namespace security { 24 25 struct EcdhPublicKey { 26 std::array<uint8_t, 32> x; 27 std::array<uint8_t, 32> y; 28 }; 29 30 /* this generates private and public Eliptic Curve Diffie Helman keys */ 31 std::pair<std::array<uint8_t, 32>, EcdhPublicKey> GenerateECDHKeyPair(); 32 33 /* This function validates that the given public key (point) lays on the special 34 * Bluetooth curve */ 35 bool ValidateECDHPoint(EcdhPublicKey pk); 36 37 std::array<uint8_t, 32> ComputeDHKey(std::array<uint8_t, 32> my_private_key, EcdhPublicKey remote_public_key); 38 39 } // namespace security 40 } // namespace bluetooth 41