btcpayserver/php-bitpay-client
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Removed pointTest. Not in use and we can add it again later with fixes and tests

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This commit is contained in:
Sam Bohler 2014-11-26 15:39:08 -05:00
parent 413f139a37
commit cb01434a67
1 changed files with 0 additions and 30 deletions
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30
src/Bitpay/Util/Util.php
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@ -404,34 +404,4 @@ class Util
return strrev($byte);
}
/**
* y^2 (mod p) = x^3 + ax + b (mod p)
*
* @param PointInterface $point
* @param CurveParameterInterface $parameters
*/
public static function pointTest(PointInterface $point, CurveParameterInterface $parameters = null)
{
if (null === $parameters) {
$parameters = new Secp256k1();
}
// y^2
$y2 = Math::pow($point->getY(), 2);
// x^3
$x3 = Math::pow($point->getX(), 3);
// ax
$ax = Math::mul($parameters->aHex(), $point->getX());
$left = Math::mod($y2, $parameters->pHex());
$right = Math::mod(
Math::add(
Math::add($x3, $ax),
$parameters->bHex()
),
$parameters->pHex()
);
return ($left == $right);
}
}