cast/ecdsa

ECDSA pure PHP implementation

Maintainers

Details

github.com/windlace/ecdsa

Source

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Installs: 45

Dependents: 1

Suggesters: 0

Security: 0

Stars: 1

Watchers: 1

Forks: 0

Open Issues: 0

0.3 2020-05-08 03:52 UTC

Requires

Requires (Dev)

MIT 7b5e86670b0b93be1272a873fe432cd0be97806e

This package is auto-updated.

Last update: 2024-04-08 15:25:59 UTC

README

Pure PHP-implementation without any extensions

Install:

composer require cast/ecdsa

Usage:

<?php

use function Cast\Crypto\ECDSA\secp256k1\publicKey;
use function Cast\Crypto\ECDSA\secp256k1\sign;
use function Cast\Crypto\ECDSA\secp256k1\verify;

// key pair generation:
$privateKey = bin2hex(random_bytes(32)); // 18e14a7b6a307f426a94f8114701e7c8e774e7f9a47e2c2035db29a206321725
$publicKey = publicKey($privateKey); // 0250863AD64A87AE8A2FE83C1AF1A8403CB53F53E486D8511DAD8A04887E5B2352

// signature generation:
$message = "public data to sign";
$messageHash = hash('sha256', $message); // hex, any algo
$salt = bin2hex(random_bytes(32)); // the sign request id, onetime random number
$signature = sign($salt, $messageHash, $privateKey); // 78be7c53361d9bd7d32acc917d79aee05f633d3ae33a14040d179a6f4816aa3a

// signature verifying:
$verified = verify($signature, $messageHash, $salt, $publicKey); // true

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