You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
207 lines
6.0 KiB
207 lines
6.0 KiB
![]()
10 years ago
|
/*
|
||
![]()
7 years ago
|
* This file is part of the TREZOR project, https://trezor.io/
|
||
![]()
10 years ago
|
*
|
||
|
* Copyright (C) 2014 Pavol Rusnak <stick@satoshilabs.com>
|
||
|
*
|
||
|
* This library is free software: you can redistribute it and/or modify
|
||
|
* it under the terms of the GNU Lesser General Public License as published by
|
||
|
* the Free Software Foundation, either version 3 of the License, or
|
||
|
* (at your option) any later version.
|
||
|
*
|
||
|
* This library is distributed in the hope that it will be useful,
|
||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
* GNU Lesser General Public License for more details.
|
||
|
*
|
||
|
* You should have received a copy of the GNU Lesser General Public License
|
||
|
* along with this library. If not, see <http://www.gnu.org/licenses/>.
|
||
|
*/
|
||
|
|
||
|
#include "reset.h"
|
||
![]()
5 years ago
|
#include "bip39.h"
|
||
![]()
6 years ago
|
#include "config.h"
|
||
![]()
10 years ago
|
#include "fsm.h"
|
||
![]()
5 years ago
|
#include "gettext.h"
|
||
![]()
10 years ago
|
#include "layout2.h"
|
||
![]()
5 years ago
|
#include "memzero.h"
|
||
|
#include "messages.h"
|
||
|
#include "messages.pb.h"
|
||
![]()
10 years ago
|
#include "protect.h"
|
||
![]()
5 years ago
|
#include "rng.h"
|
||
|
#include "sha2.h"
|
||
![]()
10 years ago
|
#include "util.h"
|
||
|
|
||
|
static uint32_t strength;
|
||
![]()
5 years ago
|
static uint8_t int_entropy[32];
|
||
|
static bool awaiting_entropy = false;
|
||
|
static bool skip_backup = false;
|
||
|
static bool no_backup = false;
|
||
|
|
||
|
void reset_init(bool display_random, uint32_t _strength,
|
||
|
bool passphrase_protection, bool pin_protection,
|
||
|
const char *language, const char *label, uint32_t u2f_counter,
|
||
|
bool _skip_backup, bool _no_backup) {
|
||
|
if (_strength != 128 && _strength != 192 && _strength != 256) return;
|
||
|
|
||
|
strength = _strength;
|
||
|
skip_backup = _skip_backup;
|
||
|
no_backup = _no_backup;
|
||
|
|
||
|
if (display_random && (skip_backup || no_backup)) {
|
||
|
fsm_sendFailure(FailureType_Failure_ProcessError,
|
||
|
"Can't show internal entropy when backup is skipped");
|
||
|
layoutHome();
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
layoutDialogSwipe(&bmp_icon_question, _("Cancel"), _("Confirm"), NULL,
|
||
|
_("Do you really want to"), _("create a new wallet?"), NULL,
|
||
|
_("By continuing you"), _("agree to trezor.io/tos"), NULL);
|
||
|
if (!protectButton(ButtonRequestType_ButtonRequest_ProtectCall, false)) {
|
||
|
fsm_sendFailure(FailureType_Failure_ActionCancelled, NULL);
|
||
|
layoutHome();
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
random_buffer(int_entropy, 32);
|
||
|
|
||
|
char ent_str[4][17];
|
||
|
data2hex(int_entropy, 8, ent_str[0]);
|
||
|
data2hex(int_entropy + 8, 8, ent_str[1]);
|
||
|
data2hex(int_entropy + 16, 8, ent_str[2]);
|
||
|
data2hex(int_entropy + 24, 8, ent_str[3]);
|
||
|
|
||
|
if (display_random) {
|
||
|
layoutDialogSwipe(&bmp_icon_info, _("Cancel"), _("Continue"), NULL,
|
||
|
_("Internal entropy:"), ent_str[0], ent_str[1],
|
||
|
ent_str[2], ent_str[3], NULL);
|
||
|
if (!protectButton(ButtonRequestType_ButtonRequest_ResetDevice, false)) {
|
||
|
fsm_sendFailure(FailureType_Failure_ActionCancelled, NULL);
|
||
|
layoutHome();
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (pin_protection && !protectChangePin(false)) {
|
||
|
layoutHome();
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
config_setPassphraseProtection(passphrase_protection);
|
||
|
config_setLanguage(language);
|
||
|
config_setLabel(label);
|
||
|
config_setU2FCounter(u2f_counter);
|
||
|
|
||
|
EntropyRequest resp;
|
||
|
memzero(&resp, sizeof(EntropyRequest));
|
||
|
msg_write(MessageType_MessageType_EntropyRequest, &resp);
|
||
|
awaiting_entropy = true;
|
||
![]()
10 years ago
|
}
|
||
|
|
||
![]()
5 years ago
|
void reset_entropy(const uint8_t *ext_entropy, uint32_t len) {
|
||
|
if (!awaiting_entropy) {
|
||
|
fsm_sendFailure(FailureType_Failure_UnexpectedMessage,
|
||
|
_("Not in Reset mode"));
|
||
|
return;
|
||
|
}
|
||
|
awaiting_entropy = false;
|
||
|
|
||
|
SHA256_CTX ctx;
|
||
|
sha256_Init(&ctx);
|
||
|
sha256_Update(&ctx, int_entropy, 32);
|
||
|
sha256_Update(&ctx, ext_entropy, len);
|
||
|
sha256_Final(&ctx, int_entropy);
|
||
|
const char *mnemonic = mnemonic_from_data(int_entropy, strength / 8);
|
||
|
memzero(int_entropy, 32);
|
||
|
|
||
|
if (skip_backup || no_backup) {
|
||
|
if (no_backup) {
|
||
|
config_setNoBackup();
|
||
|
} else {
|
||
|
config_setNeedsBackup(true);
|
||
|
}
|
||
|
if (config_setMnemonic(mnemonic)) {
|
||
|
fsm_sendSuccess(_("Device successfully initialized"));
|
||
|
} else {
|
||
|
fsm_sendFailure(FailureType_Failure_ProcessError,
|
||
|
_("Failed to store mnemonic"));
|
||
|
}
|
||
|
layoutHome();
|
||
|
} else {
|
||
|
reset_backup(false, mnemonic);
|
||
|
}
|
||
|
mnemonic_clear();
|
||
![]()
7 years ago
|
}
|
||
|
|
||
![]()
7 years ago
|
static char current_word[10];
|
||
![]()
7 years ago
|
|
||
![]()
7 years ago
|
// separated == true if called as a separate workflow via BackupMessage
|
||
![]()
5 years ago
|
void reset_backup(bool separated, const char *mnemonic) {
|
||
|
if (separated) {
|
||
|
bool needs_backup = false;
|
||
|
config_getNeedsBackup(&needs_backup);
|
||
|
if (!needs_backup) {
|
||
|
fsm_sendFailure(FailureType_Failure_UnexpectedMessage,
|
||
|
_("Seed already backed up"));
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
config_setUnfinishedBackup(true);
|
||
|
config_setNeedsBackup(false);
|
||
|
}
|
||
|
|
||
|
for (int pass = 0; pass < 2; pass++) {
|
||
|
int i = 0, word_pos = 1;
|
||
|
while (mnemonic[i] != 0) {
|
||
|
// copy current_word
|
||
|
int j = 0;
|
||
|
while (mnemonic[i] != ' ' && mnemonic[i] != 0 &&
|
||
|
j + 1 < (int)sizeof(current_word)) {
|
||
|
current_word[j] = mnemonic[i];
|
||
|
i++;
|
||
|
j++;
|
||
|
}
|
||
|
current_word[j] = 0;
|
||
|
if (mnemonic[i] != 0) {
|
||
|
i++;
|
||
|
}
|
||
|
layoutResetWord(current_word, pass, word_pos, mnemonic[i] == 0);
|
||
|
if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmWord, true)) {
|
||
|
if (!separated) {
|
||
|
session_clear(true);
|
||
|
}
|
||
|
layoutHome();
|
||
|
fsm_sendFailure(FailureType_Failure_ActionCancelled, NULL);
|
||
|
return;
|
||
|
}
|
||
|
word_pos++;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
config_setUnfinishedBackup(false);
|
||
|
|
||
|
if (separated) {
|
||
|
fsm_sendSuccess(_("Seed successfully backed up"));
|
||
|
} else {
|
||
|
config_setNeedsBackup(false);
|
||
|
if (config_setMnemonic(mnemonic)) {
|
||
|
fsm_sendSuccess(_("Device successfully initialized"));
|
||
|
} else {
|
||
|
fsm_sendFailure(FailureType_Failure_ProcessError,
|
||
|
_("Failed to store mnemonic"));
|
||
|
}
|
||
|
}
|
||
|
layoutHome();
|
||
![]()
10 years ago
|
}
|
||
|
|
||
![]()
9 years ago
|
#if DEBUG_LINK
|
||
|
|
||
![]()
10 years ago
|
uint32_t reset_get_int_entropy(uint8_t *entropy) {
|
||
![]()
5 years ago
|
memcpy(entropy, int_entropy, 32);
|
||
|
return 32;
|
||
![]()
10 years ago
|
}
|
||
|
|
||
![]()
5 years ago
|
const char *reset_get_word(void) { return current_word; }
|
||
![]()
9 years ago
|
|
||
|
#endif
|