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update totp

Browse Source 
https://github.com/akopachov/flipper-zero_authenticator
This commit is contained in:
MX
2022-10-17 21:22:34 +03:00
parent 4f7ca617cc
commit 04d67ca8ae
10 changed files with 234 additions and 77 deletions
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51
applications/plugins/totp/scenes/authenticate/totp_scene_authenticate.c
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@@ -6,10 +6,9 @@
#include "../../services/config/config.h"
#include "../scene_director.h"
#include "../totp_scenes_enum.h"
#include "../../services/crypto/crypto.h"
#define MAX_CODE_LENGTH TOTP_IV_SIZE
#define CRYPTO_VERIFY_KEY "FFF_Crypto_pass"
#define CRYPTO_VERIFY_KEY_LENGTH 16
typedef struct {
uint8_t code_input[MAX_CODE_LENGTH];
@@ -111,52 +110,10 @@ bool totp_scene_authenticate_handle_event(PluginEvent* const event, PluginState*
}
break;
case InputKeyOk:
if(plugin_state->crypto_verify_data == NULL) {
FURI_LOG_D(LOGGING_TAG, "Generating new IV");
furi_hal_random_fill_buf(&plugin_state->base_iv[0], TOTP_IV_SIZE);
}
totp_crypto_seed_iv(
plugin_state, &scene_state->code_input[0], scene_state->code_length);
memcpy(&plugin_state->iv[0], &plugin_state->base_iv[0], TOTP_IV_SIZE);
for(uint8_t i = 0; i < scene_state->code_length; i++) {
plugin_state->iv[i] = plugin_state->iv[i] ^
(uint8_t)(scene_state->code_input[i] * (i + 1));
}
if(plugin_state->crypto_verify_data == NULL) {
FURI_LOG_D(LOGGING_TAG, "Generating crypto verify data");
plugin_state->crypto_verify_data = malloc(CRYPTO_VERIFY_KEY_LENGTH);
plugin_state->crypto_verify_data_length = CRYPTO_VERIFY_KEY_LENGTH;
Storage* storage = totp_open_storage();
FlipperFormat* config_file = totp_open_config_file(storage);
furi_hal_crypto_store_load_key(CRYPTO_KEY_SLOT, &plugin_state->iv[0]);
furi_hal_crypto_encrypt(
(uint8_t*)CRYPTO_VERIFY_KEY,
plugin_state->crypto_verify_data,
CRYPTO_VERIFY_KEY_LENGTH);
furi_hal_crypto_store_unload_key(CRYPTO_KEY_SLOT);
flipper_format_insert_or_update_hex(
config_file, TOTP_CONFIG_KEY_BASE_IV, plugin_state->base_iv, TOTP_IV_SIZE);
flipper_format_insert_or_update_hex(
config_file,
TOTP_CONFIG_KEY_CRYPTO_VERIFY,
plugin_state->crypto_verify_data,
CRYPTO_VERIFY_KEY_LENGTH);
totp_close_config_file(config_file);
totp_close_storage();
}
uint8_t decrypted_key[CRYPTO_VERIFY_KEY_LENGTH];
furi_hal_crypto_store_load_key(CRYPTO_KEY_SLOT, &plugin_state->iv[0]);
furi_hal_crypto_decrypt(
plugin_state->crypto_verify_data, &decrypted_key[0], CRYPTO_VERIFY_KEY_LENGTH);
furi_hal_crypto_store_unload_key(CRYPTO_KEY_SLOT);
bool key_valid = true;
for(uint8_t i = 0; i < CRYPTO_VERIFY_KEY_LENGTH && key_valid; i++) {
if(decrypted_key[i] != CRYPTO_VERIFY_KEY[i]) key_valid = false;
}
if(key_valid) {
if(totp_crypto_verify_key(plugin_state)) {
FURI_LOG_D(LOGGING_TAG, "PIN is valid");
totp_scene_director_activate_scene(plugin_state, TotpSceneGenerateToken, NULL);
} else {