Package witness provides client support for using witnesses.

CheckConsistency is a wapper function which simplifies verifying consistency between two or more checkpoints.

FetchCheckpoint retrieves and opens a checkpoint from the log.

FetchLeafHashes fetches N consecutive leaf hashes starting with the leaf at index first.

FetchRangeNodes returns the set of nodes representing the compact range covering a log of size s.

GetLeaf fetches the raw contents committed to at a given leaf index.

LookupIndex fetches the leafhash->seq mapping file from the log, and returns its parsed contents.

NewLogStateTracker creates a newly initialised tracker.

NewProofBuilder creates a new ProofBuilder object for a given tree size.

UnilateralConsensus blindly trusts the source log, returning the checkpoint it provided.

ErrInconsistency should be returned when there has been an error proving consistency between log states.

LogStateTracker represents a client-side view of a target log's state.

ProofBuilder knows how to build inclusion and consistency proofs from tiles.

ConsensusCheckpointFunc is a function which returns the largest checkpoint known which is signed by logSigV and satisfies some consensus algorithm.

Fetcher is the signature of a function which can retrieve arbitrary files from a log's data storage, via whatever appropriate mechanism.

GetTileFunc is the signature of a function which knows how to fetch a specific tile.