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hashMessage

Calculates a EIP-191 personal sign hash via ERC-7739 PersonalSign format.

Import

import { hashMessage } from 'viem/experimental/erc7739'

Usage

import { hashMessage } from 'viem/experimental/erc7739'
 
// Hash a UTF-8 value.
hashMessage({ 
  message: 'hello world', 
  verifierDomain: { 
    name: 'Smart Account', 
    version: '1', 
    verifyingContract: '0x1234567890abcdef1234567890abcdef12345678', 
    chainId: 1, 
  }, 
}) 
 
// Hash a hex data value.
hashMessage({ 
  message: { raw: '0x68656c6c6f20776f726c64' }, 
  verifierDomain: { 
    name: 'Smart Account', 
    version: '1', 
    verifyingContract: '0x1234567890abcdef1234567890abcdef12345678', 
    chainId: 1, 
  }, 
}) 
 
// Hash a bytes data value.
hashMessage({ 
  message: {
    raw: Uint8Array.from([
      104, 101, 108, 108, 111, 32, 119, 111, 114, 108, 100,
    ])
  }, 
  verifierDomain: { 
    name: 'Smart Account', 
    version: '1', 
    verifyingContract: '0x1234567890abcdef1234567890abcdef12345678', 
    chainId: 1, 
  }, 
})

Returns

Hex

A signable message hash.

Parameters

message

  • Type: string | { raw: Hex | ByteArray }

Message to hash.

verifierDomain

  • Type: TypedDataDomain

The EIP-712 domain of the verifying contract.