first commit

includes/vendor/mdanter/ecc/src/Serializer/PublicKey/DerPublicKeySerializer.php

@@ -0,0 +1,81 @@
+<?php
+declare(strict_types=1);
+
+namespace Mdanter\Ecc\Serializer\PublicKey;
+
+use Mdanter\Ecc\Crypto\Key\PublicKeyInterface;
+use Mdanter\Ecc\Math\GmpMathInterface;
+use Mdanter\Ecc\Math\MathAdapterFactory;
+use Mdanter\Ecc\Serializer\Point\PointSerializerInterface;
+use Mdanter\Ecc\Serializer\Point\UncompressedPointSerializer;
+use Mdanter\Ecc\Serializer\PublicKey\Der\Formatter;
+use Mdanter\Ecc\Serializer\PublicKey\Der\Parser;
+
+/**
+ *
+ * @link https://tools.ietf.org/html/rfc5480#page-3
+ * @todo: review for full spec, should we support all prefixes here?
+ */
+class DerPublicKeySerializer implements PublicKeySerializerInterface
+{
+
+    const X509_ECDSA_OID = '1.2.840.10045.2.1';
+
+    /**
+     *
+     * @var GmpMathInterface
+     */
+    private $adapter;
+
+    /**
+     *
+     * @var Formatter
+     */
+    private $formatter;
+
+    /**
+     *
+     * @var Parser
+     */
+    private $parser;
+
+    /**
+     * @param GmpMathInterface|null $adapter
+     * @param PointSerializerInterface|null $pointSerializer
+     */
+    public function __construct(GmpMathInterface $adapter = null, PointSerializerInterface $pointSerializer = null)
+    {
+        $this->adapter = $adapter ?: MathAdapterFactory::getAdapter();
+
+        $this->formatter = new Formatter();
+        $this->parser = new Parser($this->adapter, $pointSerializer ?: new UncompressedPointSerializer());
+    }
+
+    /**
+     *
+     * @param  PublicKeyInterface $key
+     * @return string
+     */
+    public function serialize(PublicKeyInterface $key): string
+    {
+        return $this->formatter->format($key);
+    }
+
+    /**
+     * @param PublicKeyInterface $key
+     * @return string
+     */
+    public function getUncompressedKey(PublicKeyInterface $key): string
+    {
+        return $this->formatter->encodePoint($key->getPoint());
+    }
+
+    /**
+     * {@inheritDoc}
+     * @see \Mdanter\Ecc\Serializer\PublicKey\PublicKeySerializerInterface::parse()
+     */
+    public function parse(string $string): PublicKeyInterface
+    {
+        return $this->parser->parse($string);
+    }
+}