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<?php |
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namespace BitWasp\Bitcoin\Crypto\EcAdapter\Impl\PhpEcc\Key; |
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use BitWasp\Bitcoin\Bitcoin; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Impl\PhpEcc\Adapter\EcAdapter; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Impl\PhpEcc\Serializer\Key\PrivateKeySerializer; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Key\Key; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Key\PrivateKeyInterface; |
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use BitWasp\Bitcoin\Crypto\Random\RbgInterface; |
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use BitWasp\Bitcoin\Exceptions\InvalidPrivateKey; |
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use BitWasp\Bitcoin\Network\NetworkInterface; |
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use BitWasp\Bitcoin\Serializer\Key\PrivateKey\WifPrivateKeySerializer; |
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use BitWasp\Buffertools\Buffer; |
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use BitWasp\Buffertools\BufferInterface; |
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class PrivateKey extends Key implements PrivateKeyInterface |
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{ |
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/** |
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* @var int|string |
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*/ |
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private $secretMultiplier; |
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/** |
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* @var bool |
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*/ |
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private $compressed; |
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/** |
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* @var PublicKey |
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*/ |
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private $publicKey; |
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/** |
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* @var EcAdapter |
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*/ |
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private $ecAdapter; |
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/** |
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* @param EcAdapter $ecAdapter |
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* @param $int |
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* @param bool $compressed |
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* @throws InvalidPrivateKey |
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*/ |
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public function __construct(EcAdapter $ecAdapter, $int, $compressed = false) |
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{ |
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if (false === $ecAdapter->validatePrivateKey(Buffer::int($int, 32, $ecAdapter->getMath()))) { |
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throw new InvalidPrivateKey('Invalid private key - must be less than curve order.'); |
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} |
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if (false === is_numeric($int)) { |
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throw new \InvalidArgumentException('PrivateKey: Secret must be an integer'); |
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} |
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if (false === is_bool($compressed)) { |
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throw new \InvalidArgumentException('PrivateKey: Compressed argument must be a boolean'); |
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} |
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$this->ecAdapter = $ecAdapter; |
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$this->secretMultiplier = $int; |
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$this->compressed = $compressed; |
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} |
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/** |
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* @return int|string |
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*/ |
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public function getSecretMultiplier() |
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{ |
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return $this->secretMultiplier; |
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} |
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/** |
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* @param BufferInterface $msg32 |
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* @param RbgInterface|null $rbg |
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* @return \BitWasp\Bitcoin\Crypto\EcAdapter\Signature\SignatureInterface |
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*/ |
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public function sign(BufferInterface $msg32, RbgInterface $rbg = null) |
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{ |
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return $this->ecAdapter->sign($msg32, $this, $rbg); |
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} |
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/** |
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* @param int|string $tweak |
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* @return PrivateKeyInterface |
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*/ |
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public function tweakAdd($tweak) |
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{ |
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$adapter = $this->ecAdapter; |
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return $adapter->getPrivateKey( |
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$adapter |
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->getMath() |
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->getModularArithmetic( |
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$adapter |
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->getGenerator() |
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->getOrder() |
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) |
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->add( |
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$tweak, |
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$this->getSecretMultiplier() |
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), |
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$this->compressed |
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); |
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} |
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/** |
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* @param int|string $tweak |
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* @return PrivateKeyInterface |
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*/ |
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public function tweakMul($tweak) |
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{ |
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$adapter = $this->ecAdapter; |
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return $adapter->getPrivateKey( |
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$adapter |
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->getMath() |
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->getModularArithmetic( |
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$adapter |
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->getGenerator() |
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->getOrder() |
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) |
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->mul( |
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$tweak, |
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$this->getSecretMultiplier() |
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), |
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$this->compressed |
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); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isCompressed() |
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{ |
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return $this->compressed; |
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} |
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/** |
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* Return the public key |
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* |
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* @return PublicKey |
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*/ |
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public function getPublicKey() |
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{ |
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if (null === $this->publicKey) { |
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$adapter = $this->ecAdapter; |
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$this->publicKey = $adapter->getPublicKey( |
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$adapter |
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->getGenerator() |
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->mul($this->secretMultiplier), |
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$this->compressed |
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); |
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} |
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return $this->publicKey; |
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} |
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/** |
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* @param NetworkInterface $network |
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* @return string |
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*/ |
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public function toWif(NetworkInterface $network = null) |
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{ |
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$network = $network ?: Bitcoin::getNetwork(); |
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$serializer = new WifPrivateKeySerializer( |
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$this->ecAdapter->getMath(), |
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new PrivateKeySerializer($this->ecAdapter) |
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); |
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return $serializer->serialize($network, $this); |
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} |
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/** |
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* @return \BitWasp\Buffertools\BufferInterface |
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*/ |
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public function getBuffer() |
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{ |
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return (new PrivateKeySerializer($this->ecAdapter))->serialize($this); |
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} |
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} |
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Bit-Wasp /
bitcoin-php
Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly.
For example, imagine you have a variable
$accountIdthat can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to theidproperty of an instance of theAccountclass. This class holds a proper account, so the id value must no longer be false.Either this assignment is in error or a type check should be added for that assignment.