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#include <furi-hal-crypto.h>
#include <furi-hal-bt.h>
#include <furi.h>
#include <shci.h>
#define TAG "FuriHalCrypto"
CRYP_HandleTypeDef crypt;
void furi_hal_crypto_init() {
FURI_LOG_I(TAG, "Init OK");
}
bool furi_hal_crypto_store_add_key(FuriHalCryptoKey* key, uint8_t* slot) {
furi_assert(key);
furi_assert(slot);
if(!furi_hal_bt_is_alive()) {
return false;
}
SHCI_C2_FUS_StoreUsrKey_Cmd_Param_t pParam;
size_t key_data_size = 0;
if(key->type == FuriHalCryptoKeyTypeMaster) {
pParam.KeyType = KEYTYPE_MASTER;
} else if(key->type == FuriHalCryptoKeyTypeSimple) {
pParam.KeyType = KEYTYPE_SIMPLE;
} else if(key->type == FuriHalCryptoKeyTypeEncrypted) {
pParam.KeyType = KEYTYPE_ENCRYPTED;
key_data_size += 12;
} else {
furi_crash("Incorrect key type");
}
if(key->size == FuriHalCryptoKeySize128) {
pParam.KeySize = KEYSIZE_16;
key_data_size += 16;
} else if(key->size == FuriHalCryptoKeySize256) {
pParam.KeySize = KEYSIZE_32;
key_data_size += 32;
} else {
furi_crash("Incorrect key size");
}
memcpy(pParam.KeyData, key->data, key_data_size);
return SHCI_C2_FUS_StoreUsrKey(&pParam, slot) == SHCI_Success;
}
bool furi_hal_crypto_store_load_key(uint8_t slot, const uint8_t* iv) {
furi_assert(slot > 0 && slot <= 100);
if(!furi_hal_bt_is_alive()) {
return false;
}
crypt.Instance = AES1;
crypt.Init.DataType = CRYP_DATATYPE_32B;
crypt.Init.KeySize = CRYP_KEYSIZE_256B;
crypt.Init.Algorithm = CRYP_AES_CBC;
crypt.Init.pInitVect = (uint32_t*)iv;
crypt.Init.KeyIVConfigSkip = CRYP_KEYIVCONFIG_ONCE;
crypt.Init.pKey = NULL;
furi_check(HAL_CRYP_Init(&crypt) == HAL_OK);
if(SHCI_C2_FUS_LoadUsrKey(slot) == SHCI_Success) {
return true;
} else {
furi_check(HAL_CRYP_DeInit(&crypt) == HAL_OK);
return false;
}
}
bool furi_hal_crypto_store_unload_key(uint8_t slot) {
if(!furi_hal_bt_is_alive()) {
return false;
}
furi_check(HAL_CRYP_DeInit(&crypt) == HAL_OK);
return SHCI_C2_FUS_UnloadUsrKey(slot) == SHCI_Success;
}
bool furi_hal_crypto_encrypt(const uint8_t* input, uint8_t* output, size_t size) {
return HAL_CRYP_Encrypt(&crypt, (uint32_t*)input, size / 4, (uint32_t*)output, 1000) == HAL_OK;
}
bool furi_hal_crypto_decrypt(const uint8_t* input, uint8_t* output, size_t size) {
return HAL_CRYP_Decrypt(&crypt, (uint32_t*)input, size / 4, (uint32_t*)output, 1000) == HAL_OK;
}
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