0f67239bd3
feat: impl hashing Merkle leaves that don't yet exist
...
This commit implements 'prospective leaf hashing' -- computing what the
hash of a sparse Merkle tree leaf *would* be for a key-value insertion
without actually performing that insertion.
For SimpleSmt, this is trivial, since the leaf hash and its payload are
the same.
For the full Smt, the new leaf payload (and thus, its hash) depend on
the existing payload in that leaf, making the prospective hash logic a
combination of the normal insertion logic and the normal hash logic. But
because we're only interested in the hash and not the intermediate
value, we can skip allocations and sorts for the payload itself.
2024-08-22 14:16:17 -06:00
Paul-Henry Kajfasz
ad0f472708
Updated Makefile and Readme
2024-08-16 15:07:27 -07:00
Augusto Hack
c0743adac9
Rpo256: Add RpoDigest conversions ( #311 )
2024-05-12 03:09:21 +08:00
Paul Schoenfelder
999a64fca6
chore: handle deprecations in winterfell 0.8.3 release
2024-03-17 16:18:23 -04:00
Augusto Hack
dbab0e9aa9
fix: clippy warnings ( #280 )
2024-02-21 20:55:02 -08:00
Andrey Khmuro
cd4525c7ad
refactor: update repo to be compatible with Winterfell 0.8 ( #275 )
2024-02-14 11:52:40 -08:00
Philippe Laferrière
e55b3ed2ce
Introduce SmtProof ( #270 )
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* add conversion for `SmtLeaf`
* introduce `SmtProof` scaffolding
* implement `verify_membership()`
* SmtLeaf: knows its index
* `SmtLeaf::index`
* `SmtLeaf::get_value()` returns an Option
* fix `verify_membership()`
* impl `SmtProof::get`
* impl `into_parts()`
* `SmtProof::compute_root`
* use `SmtProof` in `Smt::open`
* `SmtLeaf` constructors
* Vec
* impl `Error` for `SmtLeafError`
* fix std Error
* move Word/Digest conversions to LeafIndex
* `SmtProof::new()` returns an error
* `SparseMerkleTree::path_and_leaf_to_opening`
* `SmtLeaf`: serializable/deserializable
* `SmtProof`: serializable/deserializable
* add tests for SmtLeaf serialization
* move `SmtLeaf` to submodule
* use constructors internally
* fix docs
* Add `Vec`
* add `Vec` to tests
* no_std use statements
* fmt
* `Errors`: make heading
* use `SMT_DEPTH`
* SmtLeaf single case: check leaf index
* Multiple case: check consistency with leaf index
* use `pub(super)` instead of `pub(crate)`
* use `pub(super)`
* `SmtLeaf`: add `num_entries()` accessor
* Fix `SmtLeaf` serialization
* improve leaf serialization tests
2024-02-14 11:52:40 -08:00
Philippe Laferrière
3d71a9b59b
Smt: remove inner nodes when removing value (#269 )
2024-02-14 11:52:40 -08:00
Philippe Laferrière
da12fd258a
Add missing methods to Smt ( #268 )
2024-02-14 11:52:40 -08:00
Philippe Laferrière
5596db7868
Implement Smt struct (replacement to TieredSmt) ( #254 )
2024-02-14 11:52:40 -08:00
