MerkleTree

nydus_utils::verity

Struct MerkleTree 

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pub struct MerkleTree { /* private fields */ }
Expand description

Struct to maintain and compute Merkle Tree topology and layout.

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impl MerkleTree

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pub fn new(page_size: u32, data_pages: u32, digest_algo: Algorithm) -> Self

Create a new instance of MerkleTree.

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pub fn digest_algorithm(&self) -> Algorithm

Get digest algorithm used to generate the Merkle tree.

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pub fn max_levels(&self) -> u32

Get height of the Merkle tree, 0 means there is only a root digest for one data page.

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pub fn level_pages(&self, level: u32) -> u32

Get number of pages to store digest at specified Merkle tree level.

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pub fn level_entries(&self, level: u32) -> u32

Get number of digest entries at specified Merkle tree level.

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pub fn level_index(&self, level: u32, page_index: u32) -> u32

Get entry index at the specified level covering the data page with index page_index.

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pub fn level_base(&self, level: u32) -> u64

Get base position of digest array for the specified Merkle tree level.

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pub fn total_pages(&self) -> u32

Get total pages needed to store the Merkle Tree.

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