1 // Copyright 2022, The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 //! Local types that are equivalent to those generated for the SharedSecret HAL interface 16 17 use crate::{cbor_type_error, AsCborValue, CborError}; 18 use alloc::{ 19 format, 20 string::{String, ToString}, 21 vec::Vec, 22 }; 23 use kmr_derive::AsCborValue; 24 25 pub const KEY_AGREEMENT_LABEL: &str = "KeymasterSharedMac"; 26 pub const KEY_CHECK_LABEL: &str = "Keymaster HMAC Verification"; 27 28 #[derive(Debug, Clone, Eq, Hash, PartialEq, Default, AsCborValue)] 29 pub struct SharedSecretParameters { 30 pub seed: Vec<u8>, 31 pub nonce: Vec<u8>, 32 } 33