This check is already done by the rpc parser. Re-doing it is adding dead
code. Instead, throwing an exception when the assumption does not hold
is the already correct behavior.
To make the fuzz test more accurate and not swallow all runtime errors,
add a check that the passed in UniValue sighash argument is either a
string or null.
Co-authored-by: stickies-v <stickies-v@protonmail.com>
This adds the FSChaCha20Poly1305 AEAD as specified in BIP324, a wrapper
around the ChaCha20Poly1305 AEAD (as specified in RFC8439 section 2.8) which
automatically rekeys every N messages, and automatically increments the nonce
every message.
This adds the FSChaCha20 stream cipher as specified in BIP324, a
wrapper around the ChaCha20 stream cipher (specified in RFC8439
section 2.4) which automatically rekeys every N messages, and
manages the nonces used for encryption.
Co-authored-by: dhruv <856960+dhruv@users.noreply.github.com>
This adds an implementation of the ChaCha20Poly1305 AEAD exactly matching
the version specified in RFC8439 section 2.8, including tests and official
test vectors.
Remove the variant of ChaCha20Poly1305 AEAD that was previously added in
anticipation of BIP324 using it. BIP324 was updated to instead use rekeying
wrappers around otherwise unmodified versions of the ChaCha20 stream cipher
and the ChaCha20Poly1305 AEAD as specified in RFC8439.
fa9108f85a refactor: Use reinterpret_cast where appropriate (MarcoFalke)
3333f950d4 refactor: Avoid casting away constness (MarcoFalke)
fa6394dd10 refactor: Remove unused C-style casts (MarcoFalke)
Pull request description:
Using a C-style cast to convert pointer types to a byte-like pointer type has many issues:
* It may accidentally and silently throw away `const`.
* It forces reviewers to check that it doesn't accidentally throw away `const`.
For example, on current master a `const char*` is cast to `unsigned char*` (without `const`), see d23fda0584/src/span.h (L273) . This can lead to UB, and the only reason why it didn't lead to UB is because the return type added back the `const`. (Obviously this would break if the return type was deduced via `auto`)
Fix all issues by adding back the `const` and using `reinterpret_cast` where appropriate.
ACKs for top commit:
darosior:
re-utACK fa9108f85a
hebasto:
re-ACK fa9108f85a.
john-moffett:
ACK fa9108f85a
Tree-SHA512: 87f6e4b574f9bd96d4e0f2a0631fd0a9dc6096e5d4f1b95042fe9f197afc2fe9a24e333aeb34fed11feefcdb184a238fe1ea5aff10d580bb18d76bfe48b76a10
faca9a3d5a test: Avoid intermittent issues due to async events in validationinterface_tests (MarcoFalke)
Pull request description:
Currently the tests have many issues:
* They setup the genesis block, even though it is not needed
* They queue an async `UpdatedBlockTip` even, which causes intermittent issues: https://github.com/bitcoin/bitcoin/issues/28146#issuecomment-1650064645
Fix all issues by trimming down the setup to just `ChainTestingSetup`.
ACKs for top commit:
Crypt-iQ:
tACK faca9a3d5a
Tree-SHA512: 4449040330f89bbaf5ce5b2052417c160b451c373987fdf1069596c07834ed81f0aea1506d53c7d2cd21062b27332d30679285dae194b272fd0cb9ce5ded32cf
07c59eda00 Don't derive secure_allocator from std::allocator (Casey Carter)
Pull request description:
Giving the C++ Standard Committee control of the public interface of your type means they will break it. C++23 adds a new `allocate_at_least` member to `std::allocator`. Very bad things happen when, say, `std::vector` uses `allocate_at_least` from `secure_allocator`'s base to allocate memory which it then tries to free with `secure_allocator::deallocate`.
(Discovered by microsoft/STL#3712, which will be reverted by microsoft/STL#3819 before it ships.)
ACKs for top commit:
jonatack:
re-ACK 07c59eda00 no change since my previous ACK apart from squashing the commits
achow101:
ACK 07c59eda00
john-moffett:
ACK 07c59eda00 Reviewed and tested. Performance appears unaffected in my environment.
Tree-SHA512: 23606c40414d325f5605a9244d4dd50907fdf5f2fbf70f336accb3a2cb98baa8acd2972f46eab1b7fdec1d28a843a96b06083cd2d09791cda7c90ee218e5bbd5
6960c81cbf kernel: Remove Univalue from kernel library (TheCharlatan)
10eb3a9faa kernel: Split ParseSighashString (TheCharlatan)
Pull request description:
Besides the build system changes, this is a mostly move-only change for moving the few UniValue-related functions out of kernel files.
UniValue is not required by any of the kernel components and a JSON library should not need to be part of a consensus library.
ACKs for top commit:
achow101:
ACK 6960c81cbf
theuni:
Re-ACK 6960c81cbf
stickies-v:
re-ACK 6960c81cbf
Tree-SHA512: d92e4cb4e12134c94b517751bd746d39f9b8da528ec3a1c94aaedcce93274a3bae9277832e8a7c0243c13df0397ca70ae7bbb24ede200018c569f8d81103c1da
Affects both secure_allocator and zero_after_free_allocator.
Giving the C++ Standard Committee control of the public interface of your type means they will break it. C++23 adds a new `allocate_at_least` member to `std::allocator`. Very bad things happen when, say, `std::vector` uses `allocate_at_least` from `secure_allocator`'s base to allocate memory which it then tries to free with `secure_allocator::deallocate`.
Drive-by: Aggressively remove facilities unnecessary since C++11 from both allocators to keep things simple.
This is to (a) avoid repeated lookups into the block index for an entry that
should never change and (b) emphasize that the snapshot base should always
exist when set and not change during the runtime of the program.
Thanks to Russ Yanofsky for suggesting this approach.
Also rewrite CheckBlockIndex() to perform tests on all chainstates.
This increases sanity-check coverage, as any place in our code where we were
invoke CheckBlockIndex() on a single chainstate will now invoke the sanity
checks on all chainstates.
This change also tightens up the checks on setBlockIndexCandidates and
mapBlocksUnlinked, to more precisely match what we aim for even in the presence
of assumed-valid blocks.
When using assumeutxo and multiple chainstates are active, the background
chainstate should consider all HAVE_DATA blocks that are ancestors of the
snapshotted block and that have more work than the tip as potential candidates.
When using assumeutxo, we only need the background chainstate to consider
blocks that are on the chain leading to the snapshotted block.
Note that this introduces the new invariant that we can only have an assumeutxo
snapshot where the snapshotted blockhash is in our block index. Unknown block
hashes that are somehow passed in will cause assertion failures when processing
new blocks.
Includes test fixes and improvements by Andrew Chow and Fabian Jahr.
Once a descriptor is successfully parsed, execute more of its methods.
There is probably still room for improvements by checking for some
invariants, but this is a low hanging fruit that significantly increases
the code coverage of these targets.
This new target focuses on fuzzing the actual descriptor parsing logic
by not requiring the fuzzer to produce valid keys (nor a valid checksum
for that matter).
This should make it much more efficient to find bugs we could introduce
moving forward.
Using a character as a marker (here '%') to be able to search and
replace in the string without having to mock the actual descriptor
parsing logic was an insight from Pieter Wuille.
Separate the notion of which blocks are stored on disk, and what data is in our
block index, from what tip a chainstate might be able to get to. We can use
chainstate-agnostic data to determine when to store a block on disk (primarily,
an anti-DoS set of criteria) and let the chainstates figure out for themselves
when a block is of interest for being a candidate tip.
Note: some of the invariants in CheckBlockIndex are modified, but more work is
needed (ie to move CheckBlockIndex to ChainstateManager, as most of what
CheckBlockIndex is doing is checking the consistency of the block index, which
is outside of Chainstate).
node_context is never null, but if it was, it would lead to a nullptr
dereference in node_context->scheduler. Just use EnsureAnyNodeContext
everywhere for more robust, consistent, and correct code.
