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pallet-mmr: generate historical proofs (#12324)

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* BEEFY: generate historical proofs

Signed-off-by: Serban Iorga <serban@parity.io>

* Update frame/merkle-mountain-range/rpc/src/lib.rs

Co-authored-by: Adrian Catangiu <adrian@parity.io>

* Update primitives/merkle-mountain-range/src/lib.rs

Co-authored-by: Adrian Catangiu <adrian@parity.io>

* Update frame/merkle-mountain-range/src/lib.rs

Co-authored-by: Adrian Catangiu <adrian@parity.io>

* cargo fmt

* fix off-by-one in leaves powerset generation

* test all possible mmr sizes for historical proofs

* remove now redundant simple_historical_proof

* cargo fmt

Signed-off-by: Serban Iorga <serban@parity.io>
Co-authored-by: Adrian Catangiu <adrian@parity.io>
Co-authored-by: Robert Hambrock <roberthambrock@gmail.com>
This commit is contained in:
Serban Iorga
2022-09-30 13:46:48 +03:00
committed by GitHub
parent 5e00d361cc
commit 54713ca17a
6 changed files with 379 additions and 25 deletions
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substrate/bin/node/runtime/src/lib.rs
+30 -9
View File
@@ -2011,10 +2011,7 @@ impl_runtime_apis! {
}
}
impl pallet_mmr::primitives::MmrApi<
Block,
mmr::Hash,
> for Runtime {
impl pallet_mmr::primitives::MmrApi<Block, mmr::Hash> for Runtime {
fn generate_proof(leaf_index: pallet_mmr::primitives::LeafIndex)
-> Result<(mmr::EncodableOpaqueLeaf, mmr::Proof<mmr::Hash>), mmr::Error>
{
@@ -2049,11 +2046,35 @@ impl_runtime_apis! {
Ok(Mmr::mmr_root())
}
fn generate_batch_proof(leaf_indices: Vec<pallet_mmr::primitives::LeafIndex>)
-> Result<(Vec<mmr::EncodableOpaqueLeaf>, mmr::BatchProof<mmr::Hash>), mmr::Error>
{
Mmr::generate_batch_proof(leaf_indices)
.map(|(leaves, proof)| (leaves.into_iter().map(|leaf| mmr::EncodableOpaqueLeaf::from_leaf(&leaf)).collect(), proof))
fn generate_batch_proof(
leaf_indices: Vec<pallet_mmr::primitives::LeafIndex>,
) -> Result<(Vec<mmr::EncodableOpaqueLeaf>, mmr::BatchProof<mmr::Hash>), mmr::Error> {
Mmr::generate_batch_proof(leaf_indices).map(|(leaves, proof)| {
(
leaves
.into_iter()
.map(|leaf| mmr::EncodableOpaqueLeaf::from_leaf(&leaf))
.collect(),
proof,
)
})
}
fn generate_historical_batch_proof(
leaf_indices: Vec<pallet_mmr::primitives::LeafIndex>,
leaves_count: pallet_mmr::primitives::LeafIndex,
) -> Result<(Vec<mmr::EncodableOpaqueLeaf>, mmr::BatchProof<mmr::Hash>), mmr::Error> {
Mmr::generate_historical_batch_proof(leaf_indices, leaves_count).map(
|(leaves, proof)| {
(
leaves
.into_iter()
.map(|leaf| mmr::EncodableOpaqueLeaf::from_leaf(&leaf))
.collect(),
proof,
)
},
)
}
fn verify_batch_proof(leaves: Vec<mmr::EncodableOpaqueLeaf>, proof: mmr::BatchProof<mmr::Hash>)