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53 lines
1.6 KiB
53 lines
1.6 KiB
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdint.h>
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#ifndef ANDROID_HARDWARE_HW_AUTH_TOKEN_H
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#define ANDROID_HARDWARE_HW_AUTH_TOKEN_H
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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const uint8_t HW_AUTH_TOKEN_VERSION = 0;
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typedef enum {
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HW_AUTH_NONE = 0,
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HW_AUTH_PASSWORD = 1 << 0,
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HW_AUTH_FINGERPRINT = 1 << 1,
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// Additional entries should be powers of 2.
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HW_AUTH_ANY = UINT32_MAX,
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} hw_authenticator_type_t;
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/**
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* Data format for an authentication record used to prove successful authentication.
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*/
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typedef struct __attribute__((__packed__)) {
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uint8_t version; // Current version is 0
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uint64_t challenge;
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uint64_t user_id; // secure user ID, not Android user ID
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uint64_t authenticator_id; // secure authenticator ID
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uint32_t authenticator_type; // hw_authenticator_type_t, in network order
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uint64_t timestamp; // in network order
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uint8_t hmac[32];
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} hw_auth_token_t;
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#ifdef __cplusplus
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} // extern "C"
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#endif // __cplusplus
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#endif // ANDROID_HARDWARE_HW_AUTH_TOKEN_H
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