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wallet2: switch to chacha20 instead of chacha8

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Wallet caches and keys files are loaded with chacha8 as needed,
but only saved with chacha20. Other data (eg, cold wallet data
files, etc) will be incompatible.
release-v0.4.0.1
moneromooo-monero 7 years ago
parent 1e5491e942
commit 5ad312a1c3
No known key found for this signature in database
GPG Key ID: 686F07454D6CEFC3
1 changed files with 36 additions and 19 deletions
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55
src/wallet/wallet2.cpp
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@ -2378,7 +2378,7 @@ bool wallet2::store_keys(const std::string& keys_file_name, const epee::wipeable
std::string cipher; std::string cipher;
cipher.resize(account_data.size()); cipher.resize(account_data.size());
keys_file_data.iv = crypto::rand<crypto::chacha_iv>(); keys_file_data.iv = crypto::rand<crypto::chacha_iv>();
crypto::chacha8(account_data.data(), account_data.size(), key, keys_file_data.iv, &cipher[0]); crypto::chacha20(account_data.data(), account_data.size(), key, keys_file_data.iv, &cipher[0]);
keys_file_data.account_data = cipher; keys_file_data.account_data = cipher;
std::string buf; std::string buf;
@ -2406,6 +2406,7 @@ namespace
*/ */
bool wallet2::load_keys(const std::string& keys_file_name, const epee::wipeable_string& password) bool wallet2::load_keys(const std::string& keys_file_name, const epee::wipeable_string& password)
{ {
rapidjson::Document json;
wallet2::keys_file_data keys_file_data; wallet2::keys_file_data keys_file_data;
std::string buf; std::string buf;
bool r = epee::file_io_utils::load_file_to_string(keys_file_name, buf); bool r = epee::file_io_utils::load_file_to_string(keys_file_name, buf);
@ -2418,10 +2419,11 @@ bool wallet2::load_keys(const std::string& keys_file_name, const epee::wipeable_
crypto::generate_chacha_key(password.data(), password.size(), key); crypto::generate_chacha_key(password.data(), password.size(), key);
std::string account_data; std::string account_data;
account_data.resize(keys_file_data.account_data.size()); account_data.resize(keys_file_data.account_data.size());
crypto::chacha8(keys_file_data.account_data.data(), keys_file_data.account_data.size(), key, keys_file_data.iv, &account_data[0]); crypto::chacha20(keys_file_data.account_data.data(), keys_file_data.account_data.size(), key, keys_file_data.iv, &account_data[0]);
if (json.Parse(account_data.c_str()).HasParseError() || !json.IsObject())
crypto::chacha8(keys_file_data.account_data.data(), keys_file_data.account_data.size(), key, keys_file_data.iv, &account_data[0]);
// The contents should be JSON if the wallet follows the new format. // The contents should be JSON if the wallet follows the new format.
rapidjson::Document json;
if (json.Parse(account_data.c_str()).HasParseError()) if (json.Parse(account_data.c_str()).HasParseError())
{ {
is_old_file_format = true; is_old_file_format = true;
@ -2591,6 +2593,7 @@ bool wallet2::verify_password(const epee::wipeable_string& password) const
*/ */
bool wallet2::verify_password(const std::string& keys_file_name, const epee::wipeable_string& password, bool no_spend_key) bool wallet2::verify_password(const std::string& keys_file_name, const epee::wipeable_string& password, bool no_spend_key)
{ {
rapidjson::Document json;
wallet2::keys_file_data keys_file_data; wallet2::keys_file_data keys_file_data;
std::string buf; std::string buf;
bool r = epee::file_io_utils::load_file_to_string(keys_file_name, buf); bool r = epee::file_io_utils::load_file_to_string(keys_file_name, buf);
@ -2603,10 +2606,11 @@ bool wallet2::verify_password(const std::string& keys_file_name, const epee::wip
crypto::generate_chacha_key(password.data(), password.size(), key); crypto::generate_chacha_key(password.data(), password.size(), key);
std::string account_data; std::string account_data;
account_data.resize(keys_file_data.account_data.size()); account_data.resize(keys_file_data.account_data.size());
crypto::chacha8(keys_file_data.account_data.data(), keys_file_data.account_data.size(), key, keys_file_data.iv, &account_data[0]); crypto::chacha20(keys_file_data.account_data.data(), keys_file_data.account_data.size(), key, keys_file_data.iv, &account_data[0]);
if (json.Parse(account_data.c_str()).HasParseError() || !json.IsObject())
crypto::chacha8(keys_file_data.account_data.data(), keys_file_data.account_data.size(), key, keys_file_data.iv, &account_data[0]);
// The contents should be JSON if the wallet follows the new format. // The contents should be JSON if the wallet follows the new format.
rapidjson::Document json;
if (json.Parse(account_data.c_str()).HasParseError()) if (json.Parse(account_data.c_str()).HasParseError())
{ {
// old format before JSON wallet key file format // old format before JSON wallet key file format
@ -3345,30 +3349,42 @@ void wallet2::load(const std::string& wallet_, const epee::wipeable_string& pass
generate_chacha_key_from_secret_keys(key); generate_chacha_key_from_secret_keys(key);
std::string cache_data; std::string cache_data;
cache_data.resize(cache_file_data.cache_data.size()); cache_data.resize(cache_file_data.cache_data.size());
crypto::chacha8(cache_file_data.cache_data.data(), cache_file_data.cache_data.size(), key, cache_file_data.iv, &cache_data[0]); crypto::chacha20(cache_file_data.cache_data.data(), cache_file_data.cache_data.size(), key, cache_file_data.iv, &cache_data[0]);
std::stringstream iss;
iss << cache_data;
try { try {
std::stringstream iss;
iss << cache_data;
boost::archive::portable_binary_iarchive ar(iss); boost::archive::portable_binary_iarchive ar(iss);
ar >> *this; ar >> *this;
} }
catch (...) catch (...)
{ {
LOG_PRINT_L0("Failed to open portable binary, trying unportable"); crypto::chacha8(cache_file_data.cache_data.data(), cache_file_data.cache_data.size(), key, cache_file_data.iv, &cache_data[0]);
boost::filesystem::copy_file(m_wallet_file, m_wallet_file + ".unportable", boost::filesystem::copy_option::overwrite_if_exists); try
iss.str(""); {
iss << cache_data; std::stringstream iss;
boost::archive::binary_iarchive ar(iss); iss << cache_data;
ar >> *this; boost::archive::portable_binary_iarchive ar(iss);
ar >> *this;
}
catch (...)
{
LOG_PRINT_L0("Failed to open portable binary, trying unportable");
boost::filesystem::copy_file(m_wallet_file, m_wallet_file + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
std::stringstream iss;
iss.str("");
iss << cache_data;
boost::archive::binary_iarchive ar(iss);
ar >> *this;
}
} }
} }
catch (...) catch (...)
{ {
LOG_PRINT_L1("Failed to load encrypted cache, trying unencrypted"); LOG_PRINT_L1("Failed to load encrypted cache, trying unencrypted");
std::stringstream iss;
iss << buf;
try { try {
std::stringstream iss;
iss << buf;
boost::archive::portable_binary_iarchive ar(iss); boost::archive::portable_binary_iarchive ar(iss);
ar >> *this; ar >> *this;
} }
@ -3376,6 +3392,7 @@ void wallet2::load(const std::string& wallet_, const epee::wipeable_string& pass
{ {
LOG_PRINT_L0("Failed to open portable binary, trying unportable"); LOG_PRINT_L0("Failed to open portable binary, trying unportable");
boost::filesystem::copy_file(m_wallet_file, m_wallet_file + ".unportable", boost::filesystem::copy_option::overwrite_if_exists); boost::filesystem::copy_file(m_wallet_file, m_wallet_file + ".unportable", boost::filesystem::copy_option::overwrite_if_exists);
std::stringstream iss;
iss.str(""); iss.str("");
iss << buf; iss << buf;
boost::archive::binary_iarchive ar(iss); boost::archive::binary_iarchive ar(iss);
@ -3505,7 +3522,7 @@ void wallet2::store_to(const std::string &path, const epee::wipeable_string &pas
std::string cipher; std::string cipher;
cipher.resize(cache_file_data.cache_data.size()); cipher.resize(cache_file_data.cache_data.size());
cache_file_data.iv = crypto::rand<crypto::chacha_iv>(); cache_file_data.iv = crypto::rand<crypto::chacha_iv>();
crypto::chacha8(cache_file_data.cache_data.data(), cache_file_data.cache_data.size(), key, cache_file_data.iv, &cipher[0]); crypto::chacha20(cache_file_data.cache_data.data(), cache_file_data.cache_data.size(), key, cache_file_data.iv, &cipher[0]);
cache_file_data.cache_data = cipher; cache_file_data.cache_data = cipher;
const std::string new_file = same_file ? m_wallet_file + ".new" : path; const std::string new_file = same_file ? m_wallet_file + ".new" : path;
@ -8725,7 +8742,7 @@ std::string wallet2::encrypt(const std::string &plaintext, const crypto::secret_
std::string ciphertext; std::string ciphertext;
crypto::chacha_iv iv = crypto::rand<crypto::chacha_iv>(); crypto::chacha_iv iv = crypto::rand<crypto::chacha_iv>();
ciphertext.resize(plaintext.size() + sizeof(iv) + (authenticated ? sizeof(crypto::signature) : 0)); ciphertext.resize(plaintext.size() + sizeof(iv) + (authenticated ? sizeof(crypto::signature) : 0));
crypto::chacha8(plaintext.data(), plaintext.size(), key, iv, &ciphertext[sizeof(iv)]); crypto::chacha20(plaintext.data(), plaintext.size(), key, iv, &ciphertext[sizeof(iv)]);
memcpy(&ciphertext[0], &iv, sizeof(iv)); memcpy(&ciphertext[0], &iv, sizeof(iv));
if (authenticated) if (authenticated)
{ {
@ -8765,7 +8782,7 @@ std::string wallet2::decrypt(const std::string &ciphertext, const crypto::secret
THROW_WALLET_EXCEPTION_IF(!crypto::check_signature(hash, pkey, signature), THROW_WALLET_EXCEPTION_IF(!crypto::check_signature(hash, pkey, signature),
error::wallet_internal_error, "Failed to authenticate ciphertext"); error::wallet_internal_error, "Failed to authenticate ciphertext");
} }
crypto::chacha8(ciphertext.data() + sizeof(iv), ciphertext.size() - prefix_size, key, iv, &plaintext[0]); crypto::chacha20(ciphertext.data() + sizeof(iv), ciphertext.size() - prefix_size, key, iv, &plaintext[0]);
return plaintext; return plaintext;
} }
//---------------------------------------------------------------------------------------------------- //----------------------------------------------------------------------------------------------------

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