public function testRipe160()
{
$data = array(array('somemessage123', '12fd01a7ec6b9ba23b3a5c16fbfab3ac19624a88'), array('', '9c1185a5c5e9fc54612808977ee8f548b2258d31'), array('0000', 'ab20e58c9eeb4776e719deff3158e26ca9edb636'));
foreach ($data as $datum) {
$this->assertSame($datum[1], Util::ripe160($datum[0]));
}
}
/**
* Generates a Service Identification Number (SIN), see:
* https://en.bitcoin.it/wiki/Identity_protocol_v1
*
* @return SinKey
* @throws \Exception
*/
public function generate()
{
if (is_null($this->publicKey)) {
throw new \Exception('Public Key has not been set');
}
$compressedValue = $this->publicKey;
if (empty($compressedValue)) {
throw new \Exception('The Public Key needs to be generated.');
}
$step1 = Util::sha256(Util::binConv($compressedValue), true);
$step2 = Util::ripe160($step1);
$step3 = sprintf('%s%s%s', self::SIN_VERSION, self::SIN_TYPE, $step2);
$step4 = Util::twoSha256(Util::binConv($step3), true);
$step5 = substr(bin2hex($step4), 0, 8);
$step6 = $step3 . $step5;
$this->value = Base58::encode($step6);
return $this;
}
