Added token signers

src/TokenSigner/HmacTokenSigner.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace League\OAuth2\Server\TokenSigner;
+
+use Lcobucci\JWT\Signer;
+
+class HmacTokenSigner implements TokenSignerInterface
+{
+    /**
+     * @var \Lcobucci\JWT\Signer
+     */
+    private $signer;
+
+    /**
+     * @var string
+     */
+    private $key;
+
+    /**
+     * TokenSignerInterface constructor.
+     *
+     * @param \Lcobucci\JWT\Signer $signer
+     * @param string               $key
+     */
+    public function __construct(Signer $signer, $key)
+    {
+        $this->signer = $signer;
+        $this->key = $key;
+    }
+
+    /**
+     * @return \Lcobucci\JWT\Signer
+     */
+    public function getSigner()
+    {
+        return $this->signer;
+    }
+
+    /**
+     * @return string
+     */
+    public function getKey()
+    {
+        return $this->key;
+    }
+}

src/TokenSigner/RsaKeyTokenSigner.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace League\OAuth2\Server\TokenSigner;
+
+use Lcobucci\JWT\Signer;
+use League\OAuth2\Server\CryptKey;
+
+class RsaKeyTokenSigner implements TokenSignerInterface
+{
+    /**
+     * @var \Lcobucci\JWT\Signer
+     */
+    private $signer;
+
+    /**
+     * @var \League\OAuth2\Server\CryptKey
+     */
+    private $key;
+
+    /**
+     * TokenSignerInterface constructor.
+     *
+     * @param \Lcobucci\JWT\Signer $signer
+     * @param CryptKey             $privateKey
+     */
+    public function __construct(Signer $signer, CryptKey $privateKey)
+    {
+        $this->signer = $signer;
+        $this->key = new Signer\Key($privateKey->getKeyPath(), $privateKey->getPassPhrase());
+    }
+
+    /**
+     * @return \Lcobucci\JWT\Signer
+     */
+    public function getSigner()
+    {
+        return $this->signer;
+    }
+
+    /**
+     * @return CryptKey
+     */
+    public function getKey()
+    {
+        return $this->key;
+    }
+}

src/TokenSigner/TokenSignerInterface.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace League\OAuth2\Server\TokenSigner;
+
+interface TokenSignerInterface
+{
+    /**
+     * @return \Lcobucci\JWT\Signer
+     */
+    public function getSigner();
+
+    /**
+     * @return mixed
+     */
+    public function getKey();
+}