The Heartwood upgrade changes the meaning of the hashFinalSaplingRoot to
hashLightClientRoot. Since we don't know the network upgrade heights in
zebra-chain, we just use [u8; 32] for now.
This uses serde's try_from attribute to run deserialized values through the
TryFrom impl. Also adds a test to make sure that validation actually does
happen.
We had a brief discussion on discord and it seemed like we had consensus on the
following versioning policy:
* zebrad: match major version to NU version, so we will start by releasing
zebrad 3.0.0;
* zebra-* libraries: start by matching zebrad's version, then increment major
versions of each library as we need to make breaking changes (potentially
faster than the zebrad version, always respecting semver but making no
guarantees about the longevity of major releases).
This commit sets all of the crate versions to 3.0.0-alpha.0 -- the -alpha.0
marks it as a prerelease not subject to perfect adherence to compatibility
guarantees.
* Add checkpoint list generation scripts
* Limit the checkpoint block data size
* Limit the checkpoint height gap
* Add Mainnet and Testnet checkpoint lists
* Parse hard-coded checkpoint lists
The lists were generated using the following limits:
- 256 MB spacing, based on block byte size, and
- 2000 blocks.
* Add MIN and MAX for BlockHeight and LockTime
* Remove duplicate test cases
* fix a comment about the minimum lock time
The minimum LockTime::Time is 5 November 1985 00:53:20 UTC, so the first
day that only contains valid times is 6 November 1985 (in all timezones).
Similarly, the maximum LockTime::Time is 7 February 2106 06::28::15 UTC,
so the last day that only contains valid times in all time zones is
5 February 2106.
* fix: Reject checkpoint lists with bad hashes or heights
Reject the all-zeroes hash, because it is the parent hash of the genesis
block, and should never appear in a checkpoint list.
Reject checkpoint heights that are greater than the maximum block
height.
* add proptests for invalid forms of input
* apply proptests to each valid block we have
* start moving equihash logic to BlockHeader
* provide an error based interface
* cleanup logging in dependent crate
* use is_equihash_solution_valid everywhere
* switch to proper equihash crate branch
* add block size limit test
* calculate max_transactions_in_block and max_inputs_in_tx
* abstract block generation
* move all test vectors to zebra-test
This change brings in the `equihash` crate from librustzcash and uses it to add a basic `is_valid` test for `EquihashSolutions`.
Co-authored-by: Jane Lusby <jane@zfnd.org>
* create hash submodule for block
* create header submodule for block
* create serialize submodule for block
* add newline to hash.rs (fmt)
* Update zebra-chain/src/block/tests.rs
Co-authored-by: Jane Lusby <jlusby42@gmail.com>
Co-authored-by: Henry de Valence <hdevalence@hdevalence.ca>
Co-authored-by: Jane Lusby <jlusby42@gmail.com>
Use MAX constants for the block header version and time arbitrary test
ranges. Reduces the block header time arbitrary test range from 2**32 to
2**32-1 (u32::MAX). (2**32 is an invalid time value, which gets
truncated to 0 during serialization.)
Also add some comments about DateTime conversions.
Part of #477.
consensus: Add a checkpoint verifier stub
This stub only verifies blocks whose hashes are in the checkpoint
list.
It doesn't have tests, chain child verifies to their ancestors, or
support checkpoint maximum height queries.
Part of #429.
teor
dependabot[bot]
Jane Lusby
Henry de Valence
Alfredo Garcia
Jane Lusby
Dimitris Apostolou