51 lines
2.4 KiB
C
51 lines
2.4 KiB
C
/*
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* This file is part of the Pico Keys SDK distribution (https://github.com/polhenarejos/pico-keys-sdk).
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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 _CRYPTO_UTILS_H_
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#define _CRYPTO_UTILS_H_
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#include "mbedtls/ecp.h"
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#include "mbedtls/md.h"
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#define PICO_KEYS_KEY_RSA 0x000f // It is a mask
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#define PICO_KEYS_KEY_RSA_1K 0x0001
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#define PICO_KEYS_KEY_RSA_2K 0x0002
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#define PICO_KEYS_KEY_RSA_3K 0x0004
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#define PICO_KEYS_KEY_RSA_4k 0x0008
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#define PICO_KEYS_KEY_EC 0x0010
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#define PICO_KEYS_KEY_AES 0x0f00 // It is a mask
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#define PICO_KEYS_KEY_AES_128 0x0100
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#define PICO_KEYS_KEY_AES_192 0x0200
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#define PICO_KEYS_KEY_AES_256 0x0400
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#define PICO_KEYS_KEY_AES_512 0x0800 /* For AES XTS */
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#define PICO_KEYS_AES_MODE_CBC 1
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#define PICO_KEYS_AES_MODE_CFB 2
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#define IV_SIZE 16
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extern void double_hash_pin(const uint8_t *pin, uint16_t len, uint8_t output[32]);
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extern void hash_multi(const uint8_t *input, uint16_t len, uint8_t output[32]);
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extern void hash256(const uint8_t *input, size_t len, uint8_t output[32]);
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extern void generic_hash(mbedtls_md_type_t md, const uint8_t *input, size_t len, uint8_t *output);
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extern int aes_encrypt(const uint8_t *key, const uint8_t *iv, uint16_t key_size, int mode, uint8_t *data, uint16_t len);
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extern int aes_decrypt(const uint8_t *key, const uint8_t *iv, uint16_t key_size, int mode, uint8_t *data, uint16_t len);
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extern int aes_encrypt_cfb_256(const uint8_t *key, const uint8_t *iv, uint8_t *data, uint16_t len);
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extern int aes_decrypt_cfb_256(const uint8_t *key, const uint8_t *iv, uint8_t *data, uint16_t len);
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extern mbedtls_ecp_group_id ec_get_curve_from_prime(const uint8_t *prime, size_t prime_len);
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#endif
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