It seems the more prudent thing to do here. It will not catch
attempts to use that value before it is initialized when using
ASAN or valgrind, but in a case where it does, it will have
smaller repercussions.
So it seems appropriate in this particular case.
Coverity 182498
9acf42d3 Multisig M/N functionality core tests added (naughtyfox)
9f3963e8 Arbitrary M/N multisig schemes: * support in wallet2 * support in monero-wallet-cli * support in monero-wallet-rpc * support in wallet api * support in monero-gen-trusted-multisig * unit tests for multisig wallets creation (naughtyfox)
* support in wallet2
* support in monero-wallet-cli
* support in monero-wallet-rpc
* support in wallet api
* support in monero-gen-trusted-multisig
* unit tests for multisig wallets creation
'outputs' option allows to specify the number of
separate outputs of smaller denomination that will
be created by sweep operation.
rebased by moneromooo
- device name is a new wallet property
- full device name is now a bit more structured so we can address particular device vendor + device path. Example: 'Ledger', 'Trezor:udp', 'Trezor:udp:127.0.0.1:21324', 'Trezor:bridge:usb01'. The part before ':' identifies HW device implementation, the optional part after ':' is device path to look for.
- new --hw-device parameter added to the wallet, can name the hardware device
- device reconnect added
a54dbaee blockchain_blackball: add --force-chain-reaction-pass flag (moneromooo-monero)
44439c32 record blackballs as amount/offset, and add export ability (moneromooo-monero)
4bce935b blockchain_blackball: more optimizations (moneromooo-monero)
b66ba783 blockchain_blackball: do not process duplicate blockchains parts (moneromooo-monero)
639a3c01 blockchain_blackball: make it clear secondary passes are not incremental (moneromooo-monero)
eb8a51be blockchain_blackball: detect spent outputs by partial ring reuse (moneromooo-monero)
d6d276c6 blockchain_blackball: fix chain reaction phase in incremental mode (moneromooo-monero)
2b2a681b blockchain_blackball: avoid false positives for different amounts (moneromooo-monero)
80e4fef3 blockchain_blackball: set transaction looping txn to read only (moneromooo-monero)
4801d6b5 blockchain_blackball: add stats (moneromooo-monero)
846190fd blockchain_blackball: support pre-v2 databases (moneromooo-monero)
daa6cc7d blockchain_blackball: use LMDB for the cache (moneromooo-monero)
50cb370d ringdb: allow blackballing many outputs at once (moneromooo-monero)
The secret spend key is kept encrypted in memory, and
decrypted on the fly when needed.
Both spend and view secret keys are kept encrypted in a JSON
field in the keys file. This avoids leaving the keys in
memory due to being manipulated by the JSON I/O API.
Also added notes to WalletManager::verifyWalletPassword (which afaik seems unused
by anyone at the moment) regarding the need to unlock the keys file beforehand.
This is based on how much an attacking miner stands to lose in block
rewardy by mining a private chain which double spends a payment.
This is not foolproof, since mining is based on luck, and breaks
down as the attacking miner nears 50% of the network hash rate,
and the estimation is based on a constant block reward.
key derivation and checking for incoming outputs are threaded
in batch before adding blocks to the local blockchain. Other
minor bits and bobs are also cached.
for privacy reasons, so an untrusted node can't easily track
wallets from IP address to IP address, etc. The granularity
is 1024 blocks, which is about a day and a half.
47fdb74 WalletApi: getMultisigInfo entry for gui wallets... (naughtyfox)
47fdb74 Refactored: work with wallet api statuses to make setting and getting operations atomic along with error strings (naughtyfox)
WalletApi: makeMultisig call introduced
WalletApi: finalizeMultisig call introduced
WalletApi: new calls exportMultisigImages and importMultisigImages
WalletApi: method to return multisig wallet creation state
WalletApi: create multisig transaction, sign multisig transaction, commit transaction and get multisig data are added
WalletApi: identation and style fixes
If a pre-fork output is spent on both Monero and attack chain,
any post-fork output can be deduced to be a fake output, thereby
decreasing the effective ring size.
The segregate-per-fork-outputs option, on by default, allows
selecting only pre-fork outputs in this case, so that the same
ring can be used when spending it on the other side, which does
not decrease the effective ring size.
This is intended to be SET when intending to spend Monero on the
attack fork, and to be UNSET if not intending to spend Monero
on the attack fork (since it leaks the fact that the output being
spent is pre-fork).
If the user is not certain yet whether they will spend pre-fork
outputs on a key reusing fork, the key-reuse-mitigation2 option
should be SET instead.
If you use this option and intend to spend Monero on both forks,
then spend real Monero first.
This maps key images to rings, so that different forks can reuse
the rings by key image. This avoids revealing the real inputs like
would happen if two forks spent the same outputs with different
rings. This database is meant to be shared with all Monero forks
which don't bother making a new chain, putting users' privacy at
risk in the process. It is placed in a shared data directory by
default ($HOME/.shared-ringdb on UNIX like systems). You may
use --shared-ringdb-dir to override this location, and should
then do so for all Monero forks for them to share the database.
Previously, a file containing the unencrypted Monero address was
created by default in the wallet's directory. This file might pose
as a privacy risk. The creation of this file is now opt-in and can
be enabled by providing
--create-address-file
- save the new keys file as FOO-watchonly.keys, not FOO.keys-watchonly
- catch any exception (eg, I/O errors) and error out
- print the new keys filename in simplewallet
The basic approach it to delegate all sensitive data (master key, secret
ephemeral key, key derivation, ....) and related operations to the device.
As device has low memory, it does not keep itself the values
(except for view/spend keys) but once computed there are encrypted (with AES
are equivalent) and return back to monero-wallet-cli. When they need to be
manipulated by the device, they are decrypted on receive.
Moreover, using the client for storing the value in encrypted form limits
the modification in the client code. Those values are transfered from one
C-structure to another one as previously.
The code modification has been done with the wishes to be open to any
other hardware wallet. To achieve that a C++ class hw::Device has been
introduced. Two initial implementations are provided: the "default", which
remaps all calls to initial Monero code, and the "Ledger", which delegates
all calls to Ledger device.
3160a930 wallet2: remove {set|get}_default_decimal_point and use the same funcs under cryptonote:: instead (stoffu)
7d1088d3 wallet2: make scan_output const and omit keys arg (stoffu)
bc1ee2c2 wallet2: make member functions const when possible (stoffu)
