<?php
namespace Mdanter\Ecc\Tests\Curves;
use Mdanter\Ecc\Tests\AbstractTestCase;
class Secp112r1EcdsaTest extends AbstractTestCase
{
# https://github.com/johndoe31415/joeecc/blob/28e112174b924dd264f43b82577a4e5ca07e66df/ecc/tests/CryptoOpsTests.py#L34
public function testEcdsaOnSecp112r1()
{
$expectedR = '1696427335541514286367855701829018';
$expectedS = '1960761230049936699759766101723490';
$adapter = \Mdanter\Ecc\EccFactory::getAdapter();
$g = \Mdanter\Ecc\EccFactory::getSecgCurves()->generator112r1();
$key = gmp_init('deadbeef', 16);
$priv = $g->getPrivateKeyFrom($key);
$data = "foobar";
$signer = new \Mdanter\Ecc\Crypto\Signature\Signer($adapter);
$hash = $signer->hashData($g, "sha1", $data);
$randomK = gmp_init('12345', 10);
$signature = $signer->sign($priv, $hash, $randomK);
$this->assertEquals($expectedR, $adapter->toString($signature->getR()));
$this->assertEquals($expectedS, $adapter->toString($signature->getS()));
$this->assertTrue($signer->verify($priv->getPublicKey(), $signature, $hash));
}
}