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sha256

Calculates the Sha256 hash of a byte array or hex value.

This function is a re-export of sha256 from @noble/hashes – an audited & minimal JS hashing library.

Install

import { sha256 } from 'viem'

Usage

import { sha256 } from 'viem'
 
sha256(new Uint8Array([72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33])
// 0x7f83b1657ff1fc53b92dc18148a1d65dfc2d4b1fa3d677284addd200126d9069
 
sha256('0xdeadbeef')
// 0x5f78c33274e43fa9de5659265c1d917e25c03722dcb0b8d27db8d5feaa813953

Returns

Hex | ByteArray

The hashed value.

Parameters

value

  • Type: Hex | ByteArray

The hex value or byte array to hash.

to

  • Type: "bytes" | "hex"
  • Default: "hex"

The output type.

import { sha256 } from 'viem'
 
sha256(
  new Uint8Array([72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100, 33],
  'bytes'
)
// Uint8Array [95, 120, 195, 50, 116, 228, 63, 169, 222, 86, 89, 38, 92, 29, 145, 126, 37, 192, 55, 34, 220, 176, 184, 210, 125, 184, 213, 254, 170, 129, 57, 83]