logos-storage-proofs-circuits/circuit

Storage proof circom circuit

See the README in the parent dir for the (draft) specification.

Organization of the circuit code

• sample_cells.circom - compute cell indices to sample, and prove those cells
• single_cell.circom - prove a single cell
• merkle.circom - Merkle inclusion proof (using our custom Merkle tree convention)
• extract_bits.circom - extract lower bits of the standard representation of a field element
• binary_compare.circom - compare numbers given in binary representation (the point is that they can be bigger than the field size!)
• log2.circom - circom code for computing base 2 logarithm
• misc.circom - miscellaneous helper funtions
• poseidon2_hash.circom - compute Poseidon2 hash with sponge construction
• poseidon2_sponge.circom - generic sponge construction
• poseidon2_perm.circom - the Poseidon2 permutation

Note: the main component is not included in the above, as it depends on the parameters. You can use one of the reference input generators to create one; or look at deprecated/slot_main.circom for an example.