mirror of
https://github.com/polhenarejos/pico-hsm
synced 2026-06-08 07:43:34 +02:00
66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
/*
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* This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
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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 _DKEK_H_
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#define _DKEK_H_
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#include "crypto_utils.h"
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#ifdef ENABLE_EMULATION
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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 int save_dkek_key(uint8_t, const uint8_t *key);
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extern int store_dkek_key(uint8_t, 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 import_dkek_share(uint8_t, const uint8_t *share);
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extern int dkek_kcv(uint8_t, uint8_t *kcv);
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extern int mkek_encrypt(uint8_t *data, size_t len);
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extern int mkek_decrypt(uint8_t *data, size_t len);
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extern int dkek_encode_key(uint8_t, void *key_ctx, int key_type, uint8_t *out, size_t *out_len, const uint8_t *, size_t);
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extern int dkek_type_key(const uint8_t *in);
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extern int dkek_decode_key(uint8_t, void *key_ctx, const uint8_t *in, size_t in_len, int *key_size_out, uint8_t **, size_t *);
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#define MAX_DKEK_ENCODE_KEY_BUFFER (8+1+12+6+(8+2*4+2*4096/8+3+13)+16)
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#define MAX_KEY_DOMAINS 16
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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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typedef struct mse {
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uint8_t Qpt[65];
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uint8_t key_enc[12 + 32];
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bool init;
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} mse_t;
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extern mse_t mse;
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extern int mse_decrypt_ct(uint8_t *, size_t);
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#endif
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