Added token signers

composer.json

@@ -9,7 +9,8 @@
         "league/event": "^2.1",
         "lcobucci/jwt": "^3.1",
         "paragonie/random_compat": "^1.1 || ^2.0",
-        "psr/http-message": "^1.0"
+        "psr/http-message": "^1.0",
+        "league/openid-connect-claims": "^1.1.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^4.8 || ^5.0",

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();
+}