Barz

class Barz

Barz functions

Functions

open fun getAuthorizationHash(chainId: Array<Byte>, contractAddress: String, nonce: Array<Byte>): Array<Byte>

Computes an Authorization hash in [EIP-7702 format](https://eips.ethereum.org/EIPS/eip-7702) `keccak256('0x05' || rlp([chain_id, address, nonce]))`.

Calculate a counterfactual address for the smart contract wallet

Returns the encoded diamondCut function call for Barz contract upgrades

open fun getEncodedHash(chainId: Array<Byte>, codeAddress: String, codeName: String, codeVersion: String, typeHash: String, domainSeparatorHash: String, sender: String, userOpHash: String): Array<Byte>

Returns the encoded hash of the user operation

open fun getFormattedSignature(signature: Array<Byte>, challenge: Array<Byte>, authenticatorData: Array<Byte>, clientDataJSON: String): Array<Byte>

Converts the original ASN-encoded signature from webauthn to the format accepted by Barz

open fun getInitCode(factory: String, publicKey: PublicKey, verificationFacet: String, salt: Int): Array<Byte>

Returns the init code parameter of ERC-4337 User Operation

open fun getPrefixedMsgHash(msgHash: Array<Byte>, barzAddress: String, chainId: Int): Array<Byte>

Returns the final hash to be signed by Barz for signing messages &typed data

open fun getSignedHash(hash: String, privateKey: String): Array<Byte>

Signs a message using the private key

open fun signAuthorization(chainId: Array<Byte>, contractAddress: String, nonce: Array<Byte>, privateKey: String): String

Returns the signed authorization hash