BTCPrivate
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trezor-mcu
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Merge pull request #29 from dstanchfield/master 

fixed salt passing to pbkdf2_hmac_sha512
This commit is contained in:
Pavol Rusnak 2015-05-07 18:41:32 +02:00
parent 7af050febb e99aafd949
commit 72f2f5ced6
1 changed files with 3 additions and 1 deletions
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4
firmware/storage.c
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@ -267,8 +267,10 @@ bool storage_getRootNode(HDNode *node)
if (storage.has_passphrase_protection && storage.passphrase_protection && strlen(sessionPassphrase)) {
// decrypt hd node
uint8_t secret[64];
uint8_t salt[12];
memcpy(salt, "TREZORHD", 8);
layoutProgressSwipe("Waking up", 0);
pbkdf2_hmac_sha512((const uint8_t *)sessionPassphrase, strlen(sessionPassphrase), (uint8_t *)"TREZORHD", 8, BIP39_PBKDF2_ROUNDS, secret, 64, get_root_node_callback);
pbkdf2_hmac_sha512((const uint8_t *)sessionPassphrase, strlen(sessionPassphrase), salt, 8, BIP39_PBKDF2_ROUNDS, secret, 64, get_root_node_callback);
aes_decrypt_ctx ctx;
aes_decrypt_key256(secret, &ctx);
aes_cbc_decrypt(sessionRootNode.chain_code, sessionRootNode.chain_code, 32, secret + 32, &ctx);