47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/*
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* This file is part of the Pico Fido distribution (https://github.com/polhenarejos/pico-fido).
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* Copyright (c) 2022 Pol Henarejos.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _KEK_H_
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#define _KEK_H_
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#include "crypto_utils.h"
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#if defined(ENABLE_EMULATION) || defined(ESP_PLATFORM)
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#include <stdbool.h>
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#endif
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extern int load_mkek(uint8_t *);
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extern int store_mkek(const uint8_t *);
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extern void init_mkek();
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extern void release_mkek(uint8_t *);
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extern int mkek_encrypt(uint8_t *data, uint16_t len);
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extern int mkek_decrypt(uint8_t *data, uint16_t len);
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#define MKEK_IV_SIZE (IV_SIZE)
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#define MKEK_KEY_SIZE (32)
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#define MKEK_KEY_CS_SIZE (4)
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#define MKEK_SIZE (MKEK_IV_SIZE + MKEK_KEY_SIZE + MKEK_KEY_CS_SIZE)
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#define MKEK_IV(p) (p)
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#define MKEK_KEY(p) (MKEK_IV(p) + MKEK_IV_SIZE)
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#define MKEK_CHECKSUM(p) (MKEK_KEY(p) + MKEK_KEY_SIZE)
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#define DKEK_KEY_SIZE (32)
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extern uint8_t mkek_mask[MKEK_KEY_SIZE];
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extern bool has_mkek_mask;
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#endif
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