keccak256

Calculates the Keccak256 hash of a byte array or hex value

keccak256

Calculates the Keccak256 hash of a byte array or hex value. This is the primary hash function used in Ethereum.

Import

import "github.com/ChefBingbong/viem-go/utils/hash"

Usage

import "github.com/ChefBingbong/viem-go/utils/hash"

// Hash bytes
h := hash.Keccak256([]byte("hello world"))
// "0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad"

// Hash hex string
h = hash.Keccak256("0x68656c6c6f20776f726c64")
// "0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad"

// Hash string (UTF-8)
h = hash.Keccak256("hello world")
// "0x47173285a8d7341e5e972fc677286384f802f8ef42a5ec5f03bbfa254cb01fad"

// Get raw bytes
bytes := hash.Keccak256Bytes([]byte("hello world"))
// []byte{...}

Returns

Type: string for Keccak256, []byte for Keccak256Bytes

The hashed value. Keccak256 returns a hex string with 0x prefix, Keccak256Bytes returns raw bytes.

Parameters

value (required)

Type: any (supports []byte or string)

The hex value or byte array to hash. If a string is provided without 0x prefix, it's treated as UTF-8.

// Hash bytes
hash := hash.Keccak256([]byte("hello"))

// Hash hex string
hash = hash.Keccak256("0x68656c6c6f")

// Hash UTF-8 string
hash = hash.Keccak256("hello")

Functions

Keccak256

Computes Keccak256 hash and returns a hex string:

hash := hash.Keccak256([]byte("hello"))
// "0x1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8"

Keccak256Bytes

Computes Keccak256 hash and returns raw bytes:

bytes := hash.Keccak256Bytes([]byte("hello"))
// []byte{0x1c, 0x8a, 0xff, ...}