Module hash 

Poseidon2 hash functions for the Aztec protocol.

Provides poseidon2_hash_with_separator and derived functions that mirror the TypeScript SDK’s hashing utilities.

Structs

ChainInfo

Chain identification information.

Enums

MessageHashOrIntent

Either a raw message hash, a structured call intent, or a pre-computed inner hash with its consumer address.

Functions

abi_values_to_fields

Flatten ABI values into their field element representation.

compute_address

Compute an Aztec address from public keys and a partial address.

compute_artifact_hash

Compute the artifact hash for a contract.

compute_auth_wit_message_hash

Compute the full authwit message hash from an intent and chain info.

compute_calldata_hash

Hash public calldata using Poseidon2 with the PUBLIC_CALLDATA separator.

compute_contract_address_from_instance

Compute the contract address from a ContractInstance.

compute_contract_class_id

Compute the contract class ID from its components.

compute_contract_class_id_from_artifact

Compute contract class ID directly from a ContractArtifact.

compute_initialization_hash

Compute the initialization hash for a contract deployment.

compute_initialization_hash_from_encoded

Compute initialization hash from pre-encoded selector and args.

compute_inner_auth_wit_hash

Compute the inner authwit hash — the “intent” before siloing with consumer.

compute_inner_auth_wit_hash_from_action

Compute the inner authwit hash from a caller address and a function call.

compute_l1_to_l2_message_nullifier

Compute the nullifier for an L1-to-L2 message consumption.

compute_l2_to_l1_message_hash

Compute an L2-to-L1 message hash.

compute_note_hash_nonce

Compute the nonce for a note hash from the first nullifier and index.

compute_outer_auth_wit_hash

Compute the outer authwit hash — the value the approver signs.

compute_partial_address

Compute the partial address from class ID and salted init hash.

compute_private_functions_root

Compute the root of the private functions Merkle tree.

compute_private_functions_root_from_artifact

Extract private functions from an artifact and compute the root.

compute_protocol_contracts_hash

Compute the protocol contracts hash from the known protocol contract addresses.

compute_protocol_nullifier

Compute the protocol nullifier from a tx request hash.

compute_public_bytecode_commitment

Compute the commitment to packed public bytecode.

compute_salted_initialization_hash

Compute the salted initialization hash.

compute_secret_hash

Hash a secret for use in L1-L2 message flow and TransparentNote.

compute_siloed_private_log_first_field

Silo the first field of a private log with a contract address.

compute_unique_note_hash

Compute a unique note hash from its nonce and siloed hash.

compute_var_args_hash

Hash function arguments using Poseidon2 with the FUNCTION_ARGS separator.

poseidon2_hash

Compute a Poseidon2 sponge hash over inputs.

poseidon2_hash_with_separator

Compute a Poseidon2 hash of inputs with a domain separator prepended.

poseidon2_hash_with_separator_field

Compute a Poseidon2 hash of inputs with a full field-element domain separator prepended.

sha256_to_field_pub

Compute the SHA256 hash of a byte slice, returning the result as an Fr.

silo_note_hash

Silo a note hash with a contract address.

silo_nullifier

Silo a nullifier with a contract address.