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<?php |
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declare(strict_types=1); |
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namespace Mdanter\Ecc\Crypto\Key; |
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/** |
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* ********************************************************************* |
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* Copyright (C) 2012 Matyas Danter |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining |
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* a copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included |
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* in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES |
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* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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* OTHER DEALINGS IN THE SOFTWARE. |
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* *********************************************************************** |
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*/ |
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use Mdanter\Ecc\Crypto\EcDH\EcDH; |
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use Mdanter\Ecc\Crypto\EcDH\EcDHInterface; |
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use Mdanter\Ecc\Math\GmpMathInterface; |
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use Mdanter\Ecc\Primitives\CurveFpInterface; |
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use Mdanter\Ecc\Primitives\GeneratorPoint; |
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use Mdanter\Ecc\Primitives\PointInterface; |
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/** |
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* This class serves as public - private key exchange for signature verification. |
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*/ |
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class PrivateKey implements PrivateKeyInterface |
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{ |
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/** |
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* @var GeneratorPoint |
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*/ |
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private $generator; |
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/** |
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* @var \GMP |
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*/ |
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private $secretMultiplier; |
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/** |
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* @var GmpMathInterface |
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*/ |
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private $adapter; |
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/** |
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* @param GmpMathInterface $adapter |
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* @param GeneratorPoint $generator |
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* @param \GMP $secretMultiplier |
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*/ |
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public function __construct(GmpMathInterface $adapter, GeneratorPoint $generator, \GMP $secretMultiplier) |
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{ |
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$this->adapter = $adapter; |
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$this->generator = $generator; |
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$this->secretMultiplier = $secretMultiplier; |
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} |
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/** |
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* {@inheritDoc} |
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* @see \Mdanter\Ecc\Crypto\Key\PrivateKeyInterface::getPublicKey() |
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*/ |
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public function getPublicKey(): PublicKeyInterface |
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{ |
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return new PublicKey($this->adapter, $this->generator, $this->generator->mul($this->secretMultiplier)); |
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} |
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/** |
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* {@inheritDoc} |
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* @see \Mdanter\Ecc\Crypto\Key\PrivateKeyInterface::getPoint() |
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*/ |
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public function getPoint(): GeneratorPoint |
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{ |
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return $this->generator; |
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} |
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/** |
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* {@inheritDoc} |
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* @see \Mdanter\Ecc\Crypto\Key\PrivateKeyInterface::getCurve() |
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*/ |
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public function getCurve(): CurveFpInterface |
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{ |
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return $this->generator->getCurve(); |
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} |
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/** |
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* {@inheritDoc} |
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* @see \Mdanter\Ecc\Crypto\Key\PrivateKeyInterface::getSecret() |
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*/ |
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public function getSecret(): \GMP |
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{ |
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return $this->secretMultiplier; |
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} |
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/** |
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* {@inheritDoc} |
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* @see \Mdanter\Ecc\Crypto\Key\PrivateKeyInterface::createExchange() |
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*/ |
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public function createExchange(PublicKeyInterface $recipient = null): EcDHInterface |
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{ |
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$ecdh = new EcDH($this->adapter); |
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$ecdh |
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->setSenderKey($this) |
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->setRecipientKey($recipient); |
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return $ecdh; |
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} |
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} |
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shanecurran /
phpecc
