115 lines
3.0 KiB
C
115 lines
3.0 KiB
C
// Author: redlineo, romanov.pd@gmail.com
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#ifndef RED_CRYPTO_H
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#define RED_CRYPTO_H
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#include QMK_KEYBOARD_H
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#include "quantum.h"
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// includes of red_crypto
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#include "kc_to_ascii.h"
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#include "utils.h"
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#include "red_menu.h"
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// includes for EEPROM, tested on STM32L432xx
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#ifdef STM32L432xx
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# include "eeprom.h"
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# include "eeprom_stm32_defs.h"
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# include "eeprom_stm32_l4.h"
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#endif
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// not tested!!!
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// #ifdef USE_RED_KUZNECHIK_128
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// #include "kuznechik_128bit.h"
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// #endif
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#define MASTER_KEY_LEN 32
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#ifdef USE_RED_KUZNECHIK_8
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# include "kuznechik_8bit.h"
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# ifdef USE_SHA256_KEY
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# undef MASTER_KEY_LEN
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# define MASTER_KEY_LEN 128
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# include "sha256.h"
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# endif
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#endif
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#ifdef USE_RED_AES_256
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# include "aes.h"
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#endif
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#define MAX_KEY_LEN 128
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#define BLOCK_SIZE 16
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#ifndef INIT_STORAGE_SIZE
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# define INIT_STORAGE_SIZE 5
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#endif
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#ifndef INIT_STORAGE_PASS_LEN
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# define INIT_STORAGE_PASS_LEN 64
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#endif
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#ifdef INIT_STORAGE_PASS_LEN
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# if (INIT_STORAGE_PASS_LEN % 16 != 0)
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# error "Password length must be multiply of 16 (16,32,64...)"
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# endif
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#endif
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// example for encrypted 64 byte password
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// const uint8_t red_enc_pass[STORAGE_SIZE][STORAGE_PASS_LEN] = {
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// {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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// 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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// 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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// 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
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// };
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enum red_crypto_keys {
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RED_CRY_M = SAFE_RANGE + 0x80, // added safe range offset
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RED_MENU,
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RED_RNG,
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RED_TEST,
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RED_LOCK, // TODO: add autolock feature
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RED_RST_EE, // resetting EEPROM by clearing RED bytes
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RED_PASS1,
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RED_PASS2,
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RED_PASS3,
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RED_PASS4,
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RED_PASS5,
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RED_PASS6,
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RED_PASS7,
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RED_PASS8,
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RED_PASS9,
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RED_PASS10,
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};
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enum red_crypto_states {
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RED_IDLE = 0,
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RED_KEY_READ,
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RED_MENU_EXIT,
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};
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// uint8_t storage_size = INIT_STORAGE_SIZE;
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// uint8_t storage_pass_len = INIT_STORAGE_PASS_LEN;
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#define EEPROM_PASS_OFFSET 3 + 3 + 1 + 1 + 4 + 1
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#define STORAGE_SIZE (EEPROM_PASS_OFFSET + INIT_STORAGE_SIZE * INIT_STORAGE_PASS_LEN)
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typedef union {
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uint8_t raw[STORAGE_SIZE];
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struct {
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uint8_t init_var[3]; // if in eeprom is bytes "RED", then it's not first flash or first power-on, or in eeprom is old red_crypto
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uint8_t version[3]; // red_crypto library version
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uint8_t storage_size;
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uint8_t storage_pass_len;
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uint32_t memory_usage;
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uint8_t password_count;
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uint8_t passwords[INIT_STORAGE_SIZE * INIT_STORAGE_PASS_LEN];
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};
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} red_crypto_storage_eeprom;
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red_crypto_storage_eeprom enc_pass;
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uint8_t crypto_process_record_user(uint16_t keycode, keyrecord_t *record);
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uint8_t *encrypt_pass_kuzn(const uint8_t *new_pass, const uint8_t new_pass_length);
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void crypto_eeprom_init(void);
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#endif
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