Laravel version update

Laravel version update

vendor/lcobucci/jwt/src/Signer/Ecdsa.php

@@ -0,0 +1,149 @@
+<?php
+/**
+ * This file is part of Lcobucci\JWT, a simple library to handle JWT and JWS
+ *
+ * @license http://opensource.org/licenses/BSD-3-Clause BSD-3-Clause
+ */
+
+namespace Lcobucci\JWT\Signer;
+
+use Lcobucci\JWT\Signer\Ecdsa\KeyParser;
+use Mdanter\Ecc\Crypto\Signature\Signature;
+use Mdanter\Ecc\Crypto\Signature\Signer;
+use Mdanter\Ecc\EccFactory;
+use Mdanter\Ecc\Math\MathAdapterInterface as Adapter;
+use Mdanter\Ecc\Random\RandomGeneratorFactory;
+use Mdanter\Ecc\Random\RandomNumberGeneratorInterface;
+
+/**
+ * Base class for ECDSA signers
+ *
+ * @author Luís Otávio Cobucci Oblonczyk <lcobucci@gmail.com>
+ * @since 2.1.0
+ */
+abstract class Ecdsa extends BaseSigner
+{
+    /**
+     * @var Adapter
+     */
+    private $adapter;
+
+    /**
+     * @var Signer
+     */
+    private $signer;
+
+    /**
+     * @var KeyParser
+     */
+    private $parser;
+
+    /**
+     * @param Adapter $adapter
+     * @param EcdsaSigner $signer
+     * @param KeyParser $parser
+     */
+    public function __construct(Adapter $adapter = null, Signer $signer = null, KeyParser $parser = null)
+    {
+        $this->adapter = $adapter ?: EccFactory::getAdapter();
+        $this->signer = $signer ?: EccFactory::getSigner($this->adapter);
+        $this->parser = $parser ?: new KeyParser($this->adapter);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function createHash(
+        $payload,
+        Key $key,
+        RandomNumberGeneratorInterface $generator = null
+    ) {
+        $privateKey = $this->parser->getPrivateKey($key);
+        $generator = $generator ?: RandomGeneratorFactory::getRandomGenerator();
+
+        return $this->createSignatureHash(
+            $this->signer->sign(
+                $privateKey,
+                $this->createSigningHash($payload),
+                $generator->generate($privateKey->getPoint()->getOrder())
+            )
+        );
+    }
+
+    /**
+     * Creates a binary signature with R and S coordinates
+     *
+     * @param Signature $signature
+     *
+     * @return string
+     */
+    private function createSignatureHash(Signature $signature)
+    {
+        $length = $this->getSignatureLength();
+
+        return pack(
+            'H*',
+            sprintf(
+                '%s%s',
+                str_pad($this->adapter->decHex($signature->getR()), $length, '0', STR_PAD_LEFT),
+                str_pad($this->adapter->decHex($signature->getS()), $length, '0', STR_PAD_LEFT)
+            )
+        );
+    }
+
+    /**
+     * Creates a hash using the signer algorithm with given payload
+     *
+     * @param string $payload
+     *
+     * @return int|string
+     */
+    private function createSigningHash($payload)
+    {
+        return $this->adapter->hexDec(hash($this->getAlgorithm(), $payload));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function doVerify($expected, $payload, Key $key)
+    {
+        return $this->signer->verify(
+            $this->parser->getPublicKey($key),
+            $this->extractSignature($expected),
+            $this->createSigningHash($payload)
+        );
+    }
+
+    /**
+     * Extracts R and S values from given data
+     *
+     * @param string $value
+     *
+     * @return \Mdanter\Ecc\Crypto\Signature\Signature
+     */
+    private function extractSignature($value)
+    {
+        $length = $this->getSignatureLength();
+        $value = unpack('H*', $value)[1];
+
+        return new Signature(
+            $this->adapter->hexDec(substr($value, 0, $length)),
+            $this->adapter->hexDec(substr($value, $length))
+        );
+    }
+
+    /**
+     * Returns the lenght of signature parts
+     *
+     * @return int
+     */
+    abstract public function getSignatureLength();
+
+    /**
+     * Returns the name of algorithm to be used to create the signing hash
+     *
+     * @return string
+     */
+    abstract public function getAlgorithm();
+}