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trezor-mcu
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Don't ask for passphrase with u2f.

This commit is contained in:
Jochen Hoenicke 2016-05-20 01:49:20 +02:00
parent a0571e02a7
commit 96f30a0ba7
4 changed files with 13 additions and 11 deletions
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2
firmware/fsm.c
View File

@ -96,7 +96,7 @@ const CoinType *fsm_getCoin(const char *name)
const HDNode *fsm_getDerivedNode(const char *curve, uint32_t *address_n, size_t address_n_count)
{
static HDNode node;
if (!storage_getRootNode(&node, curve)) {
if (!storage_getRootNode(&node, curve, true)) {
fsm_sendFailure(FailureType_Failure_NotInitialized, "Device not initialized or passphrase request cancelled or unsupported curve");
layoutHome();
return 0;

16
firmware/storage.c
View File

@ -72,7 +72,7 @@ _Static_assert(FLASH_STORAGE_START + FLASH_STORAGE_REALLEN <= FLASH_STORAGE_PINA
_Static_assert((sizeof(storage_uuid) & 3) == 0, "storage uuid unaligned");
_Static_assert((sizeof(storage) & 3) == 0, "storage unaligned");
static bool sessionSeedCached;
static bool sessionSeedCached, sessionSeedUsesPassphrase;
static uint8_t sessionSeed[64];
@ -290,27 +290,29 @@ void get_root_node_callback(uint32_t iter, uint32_t total)
layoutProgress("Waking up", 1000 * iter / total);
}
const uint8_t *storage_getSeed(void)
const uint8_t *storage_getSeed(bool usePassphrase)
{
// root node is properly cached
if (sessionSeedCached) {
if (usePassphrase == sessionSeedUsesPassphrase
&& sessionSeedCached) {
return sessionSeed;
}
// if storage has mnemonic, convert it to node and use it
if (storage.has_mnemonic) {
if (!protectPassphrase()) {
if (usePassphrase && !protectPassphrase()) {
return NULL;
}
mnemonic_to_seed(storage.mnemonic, sessionPassphrase, sessionSeed, get_root_node_callback); // BIP-0039
mnemonic_to_seed(storage.mnemonic, usePassphrase ? sessionPassphrase : "", sessionSeed, get_root_node_callback); // BIP-0039
sessionSeedCached = true;
sessionSeedUsesPassphrase = usePassphrase;
return sessionSeed;
}
return NULL;
}
bool storage_getRootNode(HDNode *node, const char *curve)
bool storage_getRootNode(HDNode *node, const char *curve, bool usePassphrase)
{
// if storage has node, decrypt and use it
if (storage.has_node && strcmp(curve, SECP256K1_NAME) == 0) {
@ -339,7 +341,7 @@ bool storage_getRootNode(HDNode *node, const char *curve)
return true;
}
const uint8_t *seed = storage_getSeed();
const uint8_t *seed = storage_getSeed(usePassphrase);
if (seed == NULL) {
return false;
}

4
firmware/storage.h
View File

@ -33,9 +33,9 @@ void session_clear(bool clear_pin);
void storage_loadDevice(LoadDevice *msg);
const uint8_t *storage_getSeed(void);
const uint8_t *storage_getSeed(bool usePassphrase);
bool storage_getRootNode(HDNode *node, const char *curve);
bool storage_getRootNode(HDNode *node, const char *curve, bool usePassphrase);
const char *storage_getLabel(void);
void storage_setLabel(const char *label);

2
firmware/u2f.c
View File

@ -473,7 +473,7 @@ static const char *getReadableAppId(const uint8_t appid[U2F_APPID_SIZE]) {
const HDNode *getDerivedNode(uint32_t *address_n, size_t address_n_count)
{
static HDNode node;
if (!storage_getRootNode(&node, NIST256P1_NAME)) {
if (!storage_getRootNode(&node, NIST256P1_NAME, false)) {
layoutHome();
debugLog(0, "", "ERR: Device not init");
return 0;