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<?php |
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declare(strict_types=1); |
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namespace BitWasp\Bitcoin\Key\Factory; |
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use BitWasp\Bitcoin\Bitcoin; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Adapter\EcAdapterInterface; |
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use BitWasp\Bitcoin\Crypto\Hash; |
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use BitWasp\Bitcoin\Crypto\Random\Random; |
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use BitWasp\Bitcoin\Key\Deterministic\HierarchicalKey; |
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use BitWasp\Bitcoin\Network\NetworkInterface; |
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use BitWasp\Bitcoin\Serializer\Key\HierarchicalKey\Base58ExtendedKeySerializer; |
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use BitWasp\Bitcoin\Serializer\Key\HierarchicalKey\ExtendedKeySerializer; |
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use BitWasp\Buffertools\Buffer; |
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use BitWasp\Buffertools\BufferInterface; |
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class HierarchicalKeyFactory |
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{ |
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/** |
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* @var EcAdapterInterface |
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*/ |
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private $adapter; |
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/** |
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* @var Base58ExtendedKeySerializer |
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*/ |
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private $serializer; |
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/** |
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* @var PrivateKeyFactory |
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*/ |
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private $privFactory; |
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/** |
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* HierarchicalKeyFactory constructor. |
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* @param EcAdapterInterface|null $ecAdapter |
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* @param Base58ExtendedKeySerializer|null $serializer |
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* @throws \Exception |
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*/ |
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public function __construct(EcAdapterInterface $ecAdapter = null, Base58ExtendedKeySerializer $serializer = null) |
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{ |
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$this->adapter = $ecAdapter ?: Bitcoin::getEcAdapter(); |
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$this->privFactory = PrivateKeyFactory::compressed($this->adapter); |
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$this->serializer = $serializer ?: new Base58ExtendedKeySerializer( |
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new ExtendedKeySerializer($this->adapter) |
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); |
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} |
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/** |
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* @param Random $random |
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* @return HierarchicalKey |
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* @throws \BitWasp\Bitcoin\Exceptions\RandomBytesFailure |
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* @throws \Exception |
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*/ |
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public function generateMasterKey(Random $random): HierarchicalKey |
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{ |
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return $this->fromEntropy( |
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$random->bytes(64) |
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); |
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} |
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/** |
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* @param BufferInterface $entropy |
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* @return HierarchicalKey |
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* @throws \Exception |
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*/ |
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public function fromEntropy(BufferInterface $entropy): HierarchicalKey |
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{ |
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$seed = Hash::hmac('sha512', $entropy, new Buffer('Bitcoin seed')); |
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$privSecret = $seed->slice(0, 32); |
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$chainCode = $seed->slice(32, 32); |
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return new HierarchicalKey($this->adapter, 0, 0, 0, $chainCode, $this->privFactory->fromBuffer($privSecret)); |
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} |
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/** |
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* @param string $extendedKey |
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* @param NetworkInterface|null $network |
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* @return HierarchicalKey |
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* @throws \BitWasp\Bitcoin\Exceptions\Base58ChecksumFailure |
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* @throws \BitWasp\Buffertools\Exceptions\ParserOutOfRange |
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*/ |
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public function fromExtended(string $extendedKey, NetworkInterface $network = null): HierarchicalKey |
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{ |
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return $this->serializer->parse($network ?: Bitcoin::getNetwork(), $extendedKey); |
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} |
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} |
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Bit-Wasp /
bitcoin-php
