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<?php |
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namespace BitWasp\Bitcoin\Crypto\EcAdapter\Impl\Secp256k1\Serializer\Key; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Impl\Secp256k1\Adapter\EcAdapter; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Impl\Secp256k1\Key\PrivateKey; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Key\PrivateKeyInterface; |
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use BitWasp\Bitcoin\Crypto\EcAdapter\Serializer\Key\PrivateKeySerializerInterface; |
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use BitWasp\Buffertools\Buffer; |
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use BitWasp\Buffertools\BufferInterface; |
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use BitWasp\Buffertools\Parser; |
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/** |
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* Private Key Serializer - specific to secp256k1 |
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*/ |
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class PrivateKeySerializer implements PrivateKeySerializerInterface |
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{ |
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/** |
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* @var bool |
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*/ |
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private $haveNextCompressed = false; |
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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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*/ |
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public function __construct(EcAdapter $ecAdapter) |
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{ |
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$this->ecAdapter = $ecAdapter; |
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} |
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/** |
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* @param PrivateKey $privateKey |
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* @return BufferInterface |
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*/ |
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private function doSerialize(PrivateKey $privateKey) |
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{ |
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return new Buffer($privateKey->getSecretBinary(), 32, $this->ecAdapter->getMath()); |
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} |
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/** |
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* @param PrivateKeyInterface $privateKey |
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* @return BufferInterface |
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*/ |
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public function serialize(PrivateKeyInterface $privateKey) |
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{ |
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/** @var PrivateKey $privateKey */ |
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return $this->doSerialize($privateKey); |
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} |
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/** |
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* Tells the serializer the next key to be parsed should be compressed. |
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* |
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* @return $this |
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*/ |
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public function setNextCompressed() |
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{ |
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$this->haveNextCompressed = true; |
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return $this; |
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} |
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/** |
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* @param Parser $parser |
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* @return PrivateKey |
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* @throws \BitWasp\Buffertools\Exceptions\ParserOutOfRange |
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*/ |
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public function fromParser(Parser $parser) |
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{ |
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$compressed = $this->haveNextCompressed; |
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$this->haveNextCompressed = false; |
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return $this->ecAdapter->getPrivateKey( |
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gmp_init($parser->readBytes(32)->getHex(), 16), |
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$compressed |
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); |
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} |
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/** |
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* @param \BitWasp\Buffertools\BufferInterface|string $data |
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* @return PrivateKey |
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*/ |
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public function parse($data) |
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{ |
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return $this->fromParser(new Parser($data, $this->ecAdapter->getMath())); |
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} |
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} |
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Bit-Wasp /
bitcoin-php
