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a37f687881
This was announced on the Tillitis Blog the 2nd of October 2024, for more info visit https://tillitis.se
40 lines
802 B
C
40 lines
802 B
C
// Copyright (C) 2024 - Tillitis AB
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// SPDX-License-Identifier: BSD-2-Clause
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#include <stdbool.h>
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#include <stdint.h>
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#include <tkey/io.h>
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#include <tkey/lib.h>
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#include "mgmt_app.h"
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// Lock down what app can start from flash slot 0.
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//
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// To update this, compute the BLAKE2s digest of the device app
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// binare, see the b2s tool.
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#include "mgmt_app_digest.h"
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static uint8_t current_app_digest[32];
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int mgmt_app_init(uint8_t app_digest[32])
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{
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if (app_digest == NULL) {
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return -1;
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}
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memcpy_s(current_app_digest, sizeof(current_app_digest), app_digest,
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32);
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return 0;
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}
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// Authenticate an management app
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bool mgmt_app_authenticate(void)
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{
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return memeq(current_app_digest, allowed_app_digest, 32) != 0;
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}
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uint8_t *mgmt_app_allowed_digest(void)
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{
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return (uint8_t *)allowed_app_digest;
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}
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