Git-Mirrors/monero
1
0
Fork 0
mirror of https://github.com/monero-project/monero.git synced 2024-10-01 11:49:47 -04:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #4729

Browse Source 
e86af52e wallet2: rewrite keys file in a safer manner (Nathan Dorfman)
This commit is contained in:
Riccardo Spagni 2018-11-06 15:09:45 +02:00
commit b789f7e10d
No known key found for this signature in database
GPG Key ID: 55432DF31CCD4FCD
1 changed files with 12 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/wallet/wallet2.cpp
View File

@ -3151,13 +3151,22 @@ bool wallet2::store_keys(const std::string& keys_file_name, const epee::wipeable
crypto::chacha20(account_data.data(), account_data.size(), key, keys_file_data.iv, &cipher[0]);
keys_file_data.account_data = cipher;
unlock_keys_file();
std::string tmp_file_name = keys_file_name + ".new";
std::string buf;
r = ::serialization::dump_binary(keys_file_data, buf);
r = r && epee::file_io_utils::save_string_to_file(keys_file_name, buf); //and never touch wallet_keys_file again, only read
CHECK_AND_ASSERT_MES(r, false, "failed to generate wallet keys file " << keys_file_name);
r = r && epee::file_io_utils::save_string_to_file(tmp_file_name, buf);
CHECK_AND_ASSERT_MES(r, false, "failed to generate wallet keys file " << tmp_file_name);
unlock_keys_file();
std::error_code e = tools::replace_file(tmp_file_name, keys_file_name);
lock_keys_file();
if (e) {
boost::filesystem::remove(tmp_file_name);
LOG_ERROR("failed to update wallet keys file " << keys_file_name);
return false;
}
return true;
}
//----------------------------------------------------------------------------------------------------