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fix indentation

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This commit is contained in:
Jochen Hoenicke 2016-05-26 21:21:08 +02:00
parent 78d11cf060
commit a366700332
1 changed files with 19 additions and 19 deletions
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38
firmware/u2f.c
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@ -477,31 +477,31 @@ const HDNode *getDerivedNode(uint32_t *address_n, size_t address_n_count)
const HDNode *generateKeyHandle(const uint8_t app_id[], uint8_t key_handle[]) const HDNode *generateKeyHandle(const uint8_t app_id[], uint8_t key_handle[])
{ {
uint8_t keybase[U2F_APPID_SIZE + KEY_PATH_LEN]; uint8_t keybase[U2F_APPID_SIZE + KEY_PATH_LEN];
// Derivation path is m/U2F'/r'/r'/r'/r'/r'/r'/r'/r' // Derivation path is m/U2F'/r'/r'/r'/r'/r'/r'/r'/r'
uint32_t i, key_path[KEY_PATH_ENTRIES]; uint32_t i, key_path[KEY_PATH_ENTRIES];
key_path[0] = U2F_KEY_PATH; key_path[0] = U2F_KEY_PATH;
for (i = 1; i < KEY_PATH_ENTRIES; i++) { for (i = 1; i < KEY_PATH_ENTRIES; i++) {
// high bit for hardened keys // high bit for hardened keys
key_path[i]= 0x80000000 | random32(); key_path[i]= 0x80000000 | random32();
} }
// First half of keyhandle is key_path // First half of keyhandle is key_path
memcpy(key_handle, &key_path[1], KEY_PATH_LEN); memcpy(key_handle, &key_path[1], KEY_PATH_LEN);
// prepare keypair from /random data // prepare keypair from /random data
const HDNode *node = getDerivedNode(key_path, KEY_PATH_ENTRIES); const HDNode *node = getDerivedNode(key_path, KEY_PATH_ENTRIES);
// For second half of keyhandle // For second half of keyhandle
// Signature of app_id and random data // Signature of app_id and random data
memcpy(&keybase[0], app_id, U2F_APPID_SIZE); memcpy(&keybase[0], app_id, U2F_APPID_SIZE);
memcpy(&keybase[U2F_APPID_SIZE], key_handle, KEY_PATH_LEN); memcpy(&keybase[U2F_APPID_SIZE], key_handle, KEY_PATH_LEN);
hmac_sha256(node->private_key, sizeof(node->private_key), hmac_sha256(node->private_key, sizeof(node->private_key),
keybase, sizeof(keybase), &key_handle[KEY_PATH_LEN]); keybase, sizeof(keybase), &key_handle[KEY_PATH_LEN]);
// Done! // Done!
return node; return node;
} }