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https://github.com/DarkFlippers/unleashed-firmware
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322bdf049d
* Crypto: correct key provisioning procedure. * Format Sources * Cli: target for bootloder in device_info
75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
#include <furi-hal-crypto.h>
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#include <furi.h>
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#include <shci.h>
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CRYP_HandleTypeDef crypt;
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void furi_hal_crypto_init() {
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FURI_LOG_I("FuriHalCrypto", "Init OK");
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}
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bool furi_hal_crypto_store_add_key(FuriHalCryptoKey* key, uint8_t* slot) {
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furi_assert(key);
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furi_assert(slot);
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SHCI_C2_FUS_StoreUsrKey_Cmd_Param_t pParam;
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size_t key_data_size = 0;
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if (key->type == FuriHalCryptoKeyTypeMaster) {
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pParam.KeyType = KEYTYPE_MASTER;
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} else if (key->type == FuriHalCryptoKeyTypeSimple) {
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pParam.KeyType = KEYTYPE_SIMPLE;
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} else if (key->type == FuriHalCryptoKeyTypeEncrypted) {
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pParam.KeyType = KEYTYPE_ENCRYPTED;
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key_data_size += 12;
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} else {
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furi_crash("Incorrect key type");
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}
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if (key->size == FuriHalCryptoKeySize128) {
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pParam.KeySize = KEYSIZE_16;
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key_data_size += 16;
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} else if (key->size == FuriHalCryptoKeySize256) {
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pParam.KeySize = KEYSIZE_32;
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key_data_size += 32;
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} else {
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furi_crash("Incorrect key size");
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}
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memcpy(pParam.KeyData, key->data, key_data_size);
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return SHCI_C2_FUS_StoreUsrKey(&pParam, slot) == SHCI_Success;
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}
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bool furi_hal_crypto_store_load_key(uint8_t slot, const uint8_t* iv) {
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furi_assert(slot > 0 && slot <= 100);
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crypt.Instance = AES1;
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crypt.Init.DataType = CRYP_DATATYPE_32B;
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crypt.Init.KeySize = CRYP_KEYSIZE_256B;
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crypt.Init.Algorithm = CRYP_AES_CBC;
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crypt.Init.pInitVect = (uint32_t*)iv;
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crypt.Init.pKey = NULL;
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furi_check(HAL_CRYP_Init(&crypt) == HAL_OK);
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if (SHCI_C2_FUS_LoadUsrKey(slot) == SHCI_Success) {
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return true;
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} else {
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furi_check(HAL_CRYP_DeInit(&crypt) == HAL_OK);
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return false;
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}
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}
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bool furi_hal_crypto_store_unload_key(uint8_t slot) {
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furi_check(HAL_CRYP_DeInit(&crypt) == HAL_OK);
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return SHCI_C2_FUS_UnloadUsrKey(slot) == SHCI_Success;
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}
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bool furi_hal_crypto_encrypt(const uint8_t *input, uint8_t *output, size_t size) {
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return HAL_CRYP_Encrypt(&crypt, (uint32_t*)input, size/4, (uint32_t*)output, 1000) == HAL_OK;
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}
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bool furi_hal_crypto_decrypt(const uint8_t *input, uint8_t *output, size_t size) {
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return HAL_CRYP_Decrypt(&crypt, (uint32_t*)input, size/4, (uint32_t*)output, 1000) == HAL_OK;
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}
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