hash

func CalculateDeprecatedTransactionHashCommon ¶ added in v0.8.0

func CalculateDeprecatedTransactionHashCommon(
	txHashPrefix *felt.Felt,
	version *felt.Felt,
	contractAddress *felt.Felt,
	entryPointSelector *felt.Felt,
	calldata *felt.Felt,
	maxFee *felt.Felt,
	chainId *felt.Felt,
	additionalData []*felt.Felt) *felt.Felt

CalculateDeprecatedTransactionHashCommon calculates the transaction hash common to be used in the StarkNet network - a unique identifier of the transaction. [specification]: https://github.com/starkware-libs/cairo-lang/blob/8276ac35830148a397e1143389f23253c8b80e93/src/starkware/starknet/core/os/transaction_hash/deprecated_transaction_hash.py#L29

Parameters:

• txHashPrefix: The prefix of the transaction hash
• version: The version of the transaction
• contractAddress: The address of the contract
• entryPointSelector: The selector of the entry point
• calldata: The data of the transaction
• maxFee: The maximum fee for the transaction
• chainId: The ID of the blockchain
• additionalData: Additional data to be included in the hash

Returns:

• *felt.Felt: the calculated transaction hash

func ClassHash ¶

func ClassHash(contract rpc.ContractClass) *felt.Felt

ClassHash calculates the hash of a contract class.

It takes a contract class as input and calculates the hash by combining various elements of the class. The hash is calculated using the PoseidonArray function from the Curve package. The elements used in the hash calculation include the contract class version, constructor entry point, external entry point, L1 handler entry point, ABI, and Sierra program. The ABI is converted to bytes and then hashed using the StarknetKeccak function from the Curve package. Finally, the ContractClassVersionHash, ExternalHash, L1HandleHash, ConstructorHash, ABIHash, and SierraProgamHash are combined using the PoseidonArray function from the Curve package.

Parameters:

• contract: A contract class object of type rpc.ContractClass.

Returns:

• *felt.Felt: a pointer to a felt.Felt object that represents the calculated hash.
• error: an error object if there was an error during the hash calculation.

func CompiledClassHash ¶

func CompiledClassHash(casmClass contracts.CasmClass) (*felt.Felt, error)

CompiledClassHash calculates the hash of a compiled class in the Casm format.

Parameters:

• casmClass: A `contracts.CasmClass` object

Returns:

• *felt.Felt: a pointer to a felt.Felt object that represents the calculated hash.