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 <stdint.h> 21 #include <array> 22 23 namespace bluetooth { 24 namespace security { 25 26 struct EcdhPublicKey { 27 std::array<uint8_t, 32> x; 28 std::array<uint8_t, 32> y; 29 }; 30 31 /* this generates private and public Eliptic Curve Diffie Helman keys */ 32 std::pair<std::array<uint8_t, 32>, EcdhPublicKey> GenerateECDHKeyPair(); 33 34 /* This function validates that the given public key (point) lays on the special 35 * Bluetooth curve */ 36 bool ValidateECDHPoint(EcdhPublicKey pk); 37 38 std::array<uint8_t, 32> ComputeDHKey(std::array<uint8_t, 32> my_private_key, EcdhPublicKey remote_public_key); 39 40 } // namespace security 41 } // namespace bluetooth 42