const char *mnemonic_generate(int strength)
{
if (strength % 32 || strength < 128 || strength > 256) {
return 0;
}
static uint8_t data[32];
random_buffer(data, 32);
return mnemonic_from_data(data, strength / 8);
}
END_TEST
START_TEST(test_mnemonic)
{
static const char *vectors[] = {
"00000000000000000000000000000000",
"abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about",
"c55257c360c07c72029aebc1b53c05ed0362ada38ead3e3e9efa3708e53495531f09a6987599d18264c1e1c92f2cf141630c7a3c4ab7c81b2f001698e7463b04",
"7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f",
"legal winner thank year wave sausage worth useful legal winner thank yellow",
"2e8905819b8723fe2c1d161860e5ee1830318dbf49a83bd451cfb8440c28bd6fa457fe1296106559a3c80937a1c1069be3a3a5bd381ee6260e8d9739fce1f607",
"80808080808080808080808080808080",
"letter advice cage absurd amount doctor acoustic avoid letter advice cage above",
"d71de856f81a8acc65e6fc851a38d4d7ec216fd0796d0a6827a3ad6ed5511a30fa280f12eb2e47ed2ac03b5c462a0358d18d69fe4f985ec81778c1b370b652a8",
"ffffffffffffffffffffffffffffffff",
"zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo wrong",
"ac27495480225222079d7be181583751e86f571027b0497b5b5d11218e0a8a13332572917f0f8e5a589620c6f15b11c61dee327651a14c34e18231052e48c069",
"000000000000000000000000000000000000000000000000",
"abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon agent",
"035895f2f481b1b0f01fcf8c289c794660b289981a78f8106447707fdd9666ca06da5a9a565181599b79f53b844d8a71dd9f439c52a3d7b3e8a79c906ac845fa",
"7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f",
"legal winner thank year wave sausage worth useful legal winner thank year wave sausage worth useful legal will",
"f2b94508732bcbacbcc020faefecfc89feafa6649a5491b8c952cede496c214a0c7b3c392d168748f2d4a612bada0753b52a1c7ac53c1e93abd5c6320b9e95dd",
"808080808080808080808080808080808080808080808080",
"letter advice cage absurd amount doctor acoustic avoid letter advice cage absurd amount doctor acoustic avoid letter always",
"107d7c02a5aa6f38c58083ff74f04c607c2d2c0ecc55501dadd72d025b751bc27fe913ffb796f841c49b1d33b610cf0e91d3aa239027f5e99fe4ce9e5088cd65",
"ffffffffffffffffffffffffffffffffffffffffffffffff",
"zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo when",
"0cd6e5d827bb62eb8fc1e262254223817fd068a74b5b449cc2f667c3f1f985a76379b43348d952e2265b4cd129090758b3e3c2c49103b5051aac2eaeb890a528",
"0000000000000000000000000000000000000000000000000000000000000000",
"abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon art",
"bda85446c68413707090a52022edd26a1c9462295029f2e60cd7c4f2bbd3097170af7a4d73245cafa9c3cca8d561a7c3de6f5d4a10be8ed2a5e608d68f92fcc8",
"7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f7f",
"legal winner thank year wave sausage worth useful legal winner thank year wave sausage worth useful legal winner thank year wave sausage worth title",
"bc09fca1804f7e69da93c2f2028eb238c227f2e9dda30cd63699232578480a4021b146ad717fbb7e451ce9eb835f43620bf5c514db0f8add49f5d121449d3e87",
"8080808080808080808080808080808080808080808080808080808080808080",
"letter advice cage absurd amount doctor acoustic avoid letter advice cage absurd amount doctor acoustic avoid letter advice cage absurd amount doctor acoustic bless",
"c0c519bd0e91a2ed54357d9d1ebef6f5af218a153624cf4f2da911a0ed8f7a09e2ef61af0aca007096df430022f7a2b6fb91661a9589097069720d015e4e982f",
"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
"zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo vote",
"dd48c104698c30cfe2b6142103248622fb7bb0ff692eebb00089b32d22484e1613912f0a5b694407be899ffd31ed3992c456cdf60f5d4564b8ba3f05a69890ad",
"77c2b00716cec7213839159e404db50d",
"jelly better achieve collect unaware mountain thought cargo oxygen act hood bridge",
"b5b6d0127db1a9d2226af0c3346031d77af31e918dba64287a1b44b8ebf63cdd52676f672a290aae502472cf2d602c051f3e6f18055e84e4c43897fc4e51a6ff",
"b63a9c59a6e641f288ebc103017f1da9f8290b3da6bdef7b",
"renew stay biology evidence goat welcome casual join adapt armor shuffle fault little machine walk stumble urge swap",
"9248d83e06f4cd98debf5b6f010542760df925ce46cf38a1bdb4e4de7d21f5c39366941c69e1bdbf2966e0f6e6dbece898a0e2f0a4c2b3e640953dfe8b7bbdc5",
"3e141609b97933b66a060dcddc71fad1d91677db872031e85f4c015c5e7e8982",
"dignity pass list indicate nasty swamp pool script soccer toe leaf photo multiply desk host tomato cradle drill spread actor shine dismiss champion exotic",
"ff7f3184df8696d8bef94b6c03114dbee0ef89ff938712301d27ed8336ca89ef9635da20af07d4175f2bf5f3de130f39c9d9e8dd0472489c19b1a020a940da67",
"0460ef47585604c5660618db2e6a7e7f",
"afford alter spike radar gate glance object seek swamp infant panel yellow",
"65f93a9f36b6c85cbe634ffc1f99f2b82cbb10b31edc7f087b4f6cb9e976e9faf76ff41f8f27c99afdf38f7a303ba1136ee48a4c1e7fcd3dba7aa876113a36e4",
"72f60ebac5dd8add8d2a25a797102c3ce21bc029c200076f",
"indicate race push merry suffer human cruise dwarf pole review arch keep canvas theme poem divorce alter left",
"3bbf9daa0dfad8229786ace5ddb4e00fa98a044ae4c4975ffd5e094dba9e0bb289349dbe2091761f30f382d4e35c4a670ee8ab50758d2c55881be69e327117ba",
"2c85efc7f24ee4573d2b81a6ec66cee209b2dcbd09d8eddc51e0215b0b68e416",
"clutch control vehicle tonight unusual clog visa ice plunge glimpse recipe series open hour vintage deposit universe tip job dress radar refuse motion taste",
"fe908f96f46668b2d5b37d82f558c77ed0d69dd0e7e043a5b0511c48c2f1064694a956f86360c93dd04052a8899497ce9e985ebe0c8c52b955e6ae86d4ff4449",
"eaebabb2383351fd31d703840b32e9e2",
"turtle front uncle idea crush write shrug there lottery flower risk shell",
"bdfb76a0759f301b0b899a1e3985227e53b3f51e67e3f2a65363caedf3e32fde42a66c404f18d7b05818c95ef3ca1e5146646856c461c073169467511680876c",
"7ac45cfe7722ee6c7ba84fbc2d5bd61b45cb2fe5eb65aa78",
"kiss carry display unusual confirm curtain upgrade antique rotate hello void custom frequent obey nut hole price segment",
"ed56ff6c833c07982eb7119a8f48fd363c4a9b1601cd2de736b01045c5eb8ab4f57b079403485d1c4924f0790dc10a971763337cb9f9c62226f64fff26397c79",
"4fa1a8bc3e6d80ee1316050e862c1812031493212b7ec3f3bb1b08f168cabeef",
"exile ask congress lamp submit jacket era scheme attend cousin alcohol catch course end lucky hurt sentence oven short ball bird grab wing top",
"095ee6f817b4c2cb30a5a797360a81a40ab0f9a4e25ecd672a3f58a0b5ba0687c096a6b14d2c0deb3bdefce4f61d01ae07417d502429352e27695163f7447a8c",
"18ab19a9f54a9274f03e5209a2ac8a91",
"board flee heavy tunnel powder denial science ski answer betray cargo cat",
"6eff1bb21562918509c73cb990260db07c0ce34ff0e3cc4a8cb3276129fbcb300bddfe005831350efd633909f476c45c88253276d9fd0df6ef48609e8bb7dca8",
"18a2e1d81b8ecfb2a333adcb0c17a5b9eb76cc5d05db91a4",
"board blade invite damage undo sun mimic interest slam gaze truly inherit resist great inject rocket museum chief",
"f84521c777a13b61564234bf8f8b62b3afce27fc4062b51bb5e62bdfecb23864ee6ecf07c1d5a97c0834307c5c852d8ceb88e7c97923c0a3b496bedd4e5f88a9",
"15da872c95a13dd738fbf50e427583ad61f18fd99f628c417a61cf8343c90419",
"beyond stage sleep clip because twist token leaf atom beauty genius food business side grid unable middle armed observe pair crouch tonight away coconut",
"b15509eaa2d09d3efd3e006ef42151b30367dc6e3aa5e44caba3fe4d3e352e65101fbdb86a96776b91946ff06f8eac594dc6ee1d3e82a42dfe1b40fef6bcc3fd",
0,
0,
0,
};
const char **a, **b, **c, *m;
uint8_t seed[64];
a = vectors;
b = vectors + 1;
c = vectors + 2;
while (*a && *b && *c) {
m = mnemonic_from_data(fromhex(*a), strlen(*a) / 2);
ck_assert_str_eq(m, *b);
mnemonic_to_seed(m, "TREZOR", seed, 0);
ck_assert_mem_eq(seed, fromhex(*c), strlen(*c) / 2);
a += 3; b += 3; c += 3;
}
}
void reset_entropy(const uint8_t *ext_entropy, uint32_t len)
{
if(!awaiting_entropy)
{
fsm_sendFailure(FailureType_Failure_UnexpectedMessage, "Not in Reset mode");
return;
}
SHA256_CTX ctx;
sha256_Init(&ctx);
sha256_Update(&ctx, int_entropy, 32);
sha256_Update(&ctx, ext_entropy, len);
sha256_Final(int_entropy, &ctx);
const char *temp_mnemonic = mnemonic_from_data(int_entropy, strength / 8);
memset(int_entropy, 0, 32);
awaiting_entropy = false;
/*
* Format mnemonic for user review
*/
uint32_t word_count = 0, current_page = 0, page_count;
char *tok;
char tokened_mnemonic[TOKENED_MNEMONIC_BUF];
char mnemonic_by_screen[MAX_PAGES][MNEMONIC_BY_SCREEN_BUF];
char formatted_mnemonic[MAX_PAGES][FORMATTED_MNEMONIC_BUF];
char mnemonic_display[FORMATTED_MNEMONIC_BUF];
char formatted_word[MAX_WORD_LEN + ADDITIONAL_WORD_PAD];
strlcpy(tokened_mnemonic, temp_mnemonic, TOKENED_MNEMONIC_BUF);
tok = strtok(tokened_mnemonic, " ");
while(tok)
{
snprintf(formatted_word, MAX_WORD_LEN + ADDITIONAL_WORD_PAD, "%lu.%s",
(unsigned long)(word_count + 1), tok);
/* Check that we have enough room on display to show word */
snprintf(mnemonic_display, FORMATTED_MNEMONIC_BUF, "%s %s",
formatted_mnemonic[current_page], formatted_word);
if(calc_str_line(get_body_font(), mnemonic_display, BODY_WIDTH) > 3)
{
page_count++;
current_page++;
snprintf(mnemonic_display, FORMATTED_MNEMONIC_BUF, "%s %s",
formatted_mnemonic[current_page], formatted_word);
}
strlcpy(formatted_mnemonic[current_page], mnemonic_display,
FORMATTED_MNEMONIC_BUF);
/* Save mnemonic for each screen */
if(strlen(mnemonic_by_screen[current_page]) == 0)
{
strlcpy(mnemonic_by_screen[current_page], tok, MNEMONIC_BY_SCREEN_BUF);
}
else
{
strlcat(mnemonic_by_screen[current_page], " ", MNEMONIC_BY_SCREEN_BUF);
strlcat(mnemonic_by_screen[current_page], tok, MNEMONIC_BY_SCREEN_BUF);
}
tok = strtok(NULL, " ");
word_count++;
}
/* Have user confirm mnemonic is sets of 12 words */
for(page_count = current_page + 1, current_page = 0; current_page < page_count; current_page++)
{
char title[MEDIUM_STR_BUF] = "Recovery Sentence";
/* make current screen mnemonic available via debuglink */
strlcpy(current_words, mnemonic_by_screen[current_page], MNEMONIC_BY_SCREEN_BUF);
if(page_count > 1)
{
/* snprintf: 20 + 10 (%d) + 1 (NULL) = 31 */
snprintf(title, MEDIUM_STR_BUF, "Recovery Sentence %lu/%lu", current_page + 1, page_count);
}
if(!confirm(ButtonRequestType_ButtonRequest_ConfirmWord, title, "%s",
formatted_mnemonic[current_page]))
{
fsm_sendFailure(FailureType_Failure_ActionCancelled, "Reset cancelled");
storage_reset();
go_home();
return;
}
}
/* Save mnemonic */
storage_set_mnemonic(temp_mnemonic);
storage_commit();
fsm_sendSuccess("Device reset");
go_home();
}
void reset_entropy(const uint8_t *ext_entropy, uint32_t len)
{
if (!awaiting_entropy) {
fsm_sendFailure(FailureType_Failure_UnexpectedMessage, "Not in Reset mode");
return;
}
SHA256_CTX ctx;
sha256_Init(&ctx);
sha256_Update(&ctx, int_entropy, 32);
sha256_Update(&ctx, ext_entropy, len);
sha256_Final(int_entropy, &ctx);
strlcpy(storage.mnemonic, mnemonic_from_data(int_entropy, strength / 8), sizeof(storage.mnemonic));
memset(int_entropy, 0, 32);
awaiting_entropy = false;
int pass, word_pos, i = 0, j;
for (pass = 0; pass < 2; pass++) {
i = 0;
for (word_pos = 1; word_pos <= (int)strength/32*3; word_pos++) {
// copy current_word
j = 0;
while (storage.mnemonic[i] != ' ' && storage.mnemonic[i] != 0 && j + 1 < (int)sizeof(current_word)) {
current_word[j] = storage.mnemonic[i];
i++;
j++;
}
current_word[j] = 0;
if (storage.mnemonic[i] != 0) i++;
char desc[] = "##th word is:";
if (word_pos < 10) {
desc[0] = ' ';
} else {
desc[0] = '0' + word_pos / 10;
}
desc[1] = '0' + word_pos % 10;
if (word_pos == 1 || word_pos == 21) {
desc[2] = 's';
desc[3] = 't';
} else if (word_pos == 2 || word_pos == 22) {
desc[2] = 'n';
desc[3] = 'd';
} else if (word_pos == 3 || word_pos == 23) {
desc[2] = 'r';
desc[3] = 'd';
}
if (word_pos == (int)strength/32*3) { // last word
if (pass == 1) {
layoutDialogSwipe(DIALOG_ICON_INFO, NULL, "Finish", NULL, "Please check the seed", NULL, (word_pos < 10 ? desc + 1 : desc), NULL, current_word, NULL);
} else {
layoutDialogSwipe(DIALOG_ICON_INFO, NULL, "Again", NULL, "Write down the seed", NULL, (word_pos < 10 ? desc + 1 : desc), NULL, current_word, NULL);
}
} else {
if (pass == 1) {
layoutDialogSwipe(DIALOG_ICON_INFO, NULL, "Next", NULL, "Please check the seed", NULL, (word_pos < 10 ? desc + 1 : desc), NULL, current_word, NULL);
} else {
layoutDialogSwipe(DIALOG_ICON_INFO, NULL, "Next", NULL, "Write down the seed", NULL, (word_pos < 10 ? desc + 1 : desc), NULL, current_word, NULL);
}
}
if (!protectButton(ButtonRequestType_ButtonRequest_ConfirmWord, true)) {
storage_reset();
layoutHome();
return;
}
}
}
storage.has_mnemonic = true;
storage_commit();
fsm_sendSuccess("Device reset");
layoutHome();
}
