kornrunner/ethereum-util

Pure PHP implementation of Ethereum Utils

0.2.0 2025-11-15 01:06 UTC

Requires

• php: ^8.1
• ext-gmp: *
• kornrunner/keccak: ^1.0
• kornrunner/secp256k1: ^0.3

Requires (Dev)

• phpunit/phpunit: ^9

MIT

• Boris Momcilovic

• ethereum
• eth

README

Pure PHP implementation of Ethereum Utils

Usage

Hash Personal Message

use kornrunner\Eth;

$hash = Eth::hashPersonalMessage('0xf20f20d357419f696f69e6ff05bc6566b1e6d38814ce4f489d35711e2fd2c481');
// 58a2db04c169254495a55b6dd5609a4902678ec29eac46df1e95994cdbeaebbb

Sign Personal Message

use kornrunner\Eth;

$result = Eth::signPersonalMessage('Hello, Ethereum!', $privateKey);

Recover Public Key from Signature (ecRecover)

use kornrunner\Eth;

$publicKey = Eth::ecRecover(
    '98d22cdb65bbf8a392180cd2ee892b0a971c47e7d29daf31a3286d006b9db4dc',
    'f67118680df5993e8efca4d3ecc4172ca4ac5e3e007ea774293e373864809703',
    '47427f3633371c1a30abbb2b717dbd78ef63d5b19b5a951f9d681cccdd520320',
    0
);

Verify Signature (ecVerify)

use kornrunner\Eth;

$isValid = Eth::ecVerify(
    '98d22cdb65bbf8a392180cd2ee892b0a971c47e7d29daf31a3286d006b9db4dc', // message hash
    'f67118680df5993e8efca4d3ecc4172ca4ac5e3e007ea774293e373864809703', // r component
    '47427f3633371c1a30abbb2b717dbd78ef63d5b19b5a951f9d681cccdd520320', // s component
    0, // recovery id (v)
    '04cf60398ae73fd947ffe120fba68947ec741fe696438d68a2e52caca139613ff94f220cd0d3e886f95aa226f2ad2b86be1dd5cda2813fd505d1f6a8f552904864' // public key
);
// true

All methods support both plain hex strings and 0x-prefixed hex strings.

Crypto

0x9c7b7a00972121fb843af7af74526d7eb585b171