As of OpenSSL 3.0, `SHA256_Init`, `SHA256_Update`, and `SHA256_Final`
are deprectaed in favor of the higher-level `EVP_*` class of functions.
This causes compiler warnings, and sooner or later, will cause build
errors as these functions are excluded from distro headers.
Also add some documentation.
There are vulnerabilities in multisig protocol if the parties do not
trust each other, and while there is a patch for it, it has not been
throroughly reviewed yet, so it is felt safer to disable multisig by
default for now.
If all parties in a multisig setup trust each other, then it is safe
to enable multisig.
When forced to deal with an untrusted node, a wallet will quantize
its current height to disguise the real height to the adversary, to
try and minimize the daemon's ability to distinguish returning
wallets.
Daemons will thus return more blocks than the wallet needs, starting
from earlier in the chain. These extra blocks will be disregarded
by the wallet, which had already scanned them.
However, for the purposes of reorg size detection, the wallet assumes
all blocks the daemon sends are different, which is only correct if
the wallet hasn't been coy, which is only the case for trusted
daemons (which you should use). This causes an issue when the size
of this "fake reorg" is above the sanity check threshold at which
the wallet refuses a reorg.
To fix this, the reorg size check is moved later on, when the reorg
is about to actually happen, after the wallet has checked which
blocks are actually different from the ones it expects.
While copying my data dir to another drive, I missed copying the rpc_ssl.key file b/c of the file permissions.
This change will give a much more clear, descriptive error in that scenario.
Actions:
1. Remove unused functions from misc_os_dependent.h
2. Move three remaining functions, get_gmt_time, get_ns_count, and get_tick_count into time_helper.h
3. Remove unused functions from time_helper.h
4. Refactor get_ns_count and get_internet_time_str and get_time_interval_string
5. Remove/add includes as needed
Relevant commits on the old PR:
a9fbe52b029a59b131c47fa9e2817d
Here lies dozens of unused files. This commit is ONLY file deletions except
for the removing of a couple of #includes and removing filenames from CmakeLists
where appropriate.
All tests were conducted on the same PC (Ryzen 5 5600X running at fixed 4.65 GHz).
Before:
test_cn_fast_hash<32> (100000 calls) - OK: 1 us/call
test_cn_fast_hash<16384> (1000 calls) - OK: 164 us/call
After:
test_cn_fast_hash<32> (100000 calls) - OK: 0 us/call
test_cn_fast_hash<16384> (1000 calls) - OK: 31 us/call
More than 5 times speedup for cn_fast_hash.
Also noticed consistent 1-2% improvement in test_construct_tx results.
Implements view tags as proposed by @UkoeHB in MRL issue
https://github.com/monero-project/research-lab/issues/73
At tx construction, the sender adds a 1-byte view tag to each
output. The view tag is derived from the sender-receiver
shared secret. When scanning for outputs, the receiver can
check the view tag for a match, in order to reduce scanning
time. When the view tag does not match, the wallet avoids the
more expensive EC operations when deriving the output public
key using the shared secret.
* `IWallet.h` hasn't been touched since 2014, and has been replaced by `src/wallet/api/wallet2_api.h`
* `INode.h` is in a similar situation with `src/p2p/net_node.h`
bd27deb Bulletproofs+ (SarangNoether)
b7713cc Precompute initial transcript hash (SarangNoether)
b535d66 Updates from security audit (SarangNoether)
a0d80b1 plug bulletproofs plus into consensus (moneromooo-monero)
75bd004 ringct: a few minor optimizations from review (moneromooo-monero)
a345060 ringct: port some of vtnerd's review changes from BP+ to BP (moneromooo-monero)
4c94cfe store outPk/8 in the tx for speed (moneromooo-monero)
5acdd0e bulletproofs+: some minor cleanup from vtnerd's review (moneromooo-monero)
- grab an lmdb db_rtxn_guard to ensure consistent data from the db
- fixed on_getblockhash error resp when requested height >= blockchain height
- left functions that read shared memory untouched for now
It avoids dividing by 8 when deserializing a tx, which is a slow
operation, and multiplies by 8 when verifying and extracing the
amount, which is much faster as well as less frequent
In this repo, `boost::interprocess` was being used soley to make `uint32_t` operations atomic. So I replaced each instance of
`boost::interprocess::ipcdetail::atomic(...)32` with `std::atomic` methods. I replaced member declarations as applicable. For example,
when I needed to change a `volatile uint32_t` into a `std::atomic<uint32_t>`. Sometimes, a member was being used a boolean flag, so
I replaced it with `std::atomic<bool>`.
You may notice that I didn't touch `levin_client_async.h`. That is because this file is entirely unused and will be deleted in PR monero-project#8211.
Additional changes from review:
* Make some local variables const
* Change postfix operators to prefix operators where value was not need
This commit adds a 'regexp' boolean field to the get_accounts
request. The flag is set to false by default and maintains backwards
compatibility. When set to true the user can search tags by regular
expression filters. An additional error message was added for failed
regular expression searches. Bump minor version to 25.
This comment suggests this check is unnecessary, when it is completely necessary as miner TXs can have multiple outputs *which is a statement directly, and incorrectly, contradicted by this comment*. While I don't ever see someone removing this code and getting their edits merged into Monero, someone inexperienced who thinks they're cleaning old code may break their own work, and then there's really just zero benefit to keeping this around.
