diff --git a/api/components/Tokens/AlgorithmIsNotDefinedException.php b/api/components/Tokens/AlgorithmIsNotDefinedException.php
new file mode 100644
index 0000000..740ca13
--- /dev/null
+++ b/api/components/Tokens/AlgorithmIsNotDefinedException.php
@@ -0,0 +1,12 @@
+<?php
+declare(strict_types=1);
+
+namespace api\components\Tokens;
+
+class AlgorithmIsNotDefinedException extends \Exception {
+
+    public function __construct(string $algorithmId) {
+        parent::__construct("Algorithm with id \"{$algorithmId}\" is not defined");
+    }
+
+}
diff --git a/api/components/Tokens/Algorithms/AlgorithmInterface.php b/api/components/Tokens/Algorithms/AlgorithmInterface.php
new file mode 100644
index 0000000..a7e36ae
--- /dev/null
+++ b/api/components/Tokens/Algorithms/AlgorithmInterface.php
@@ -0,0 +1,19 @@
+<?php
+declare(strict_types=1);
+
+namespace api\components\Tokens\Algorithms;
+
+use Lcobucci\JWT\Signer;
+use Lcobucci\JWT\Signer\Key;
+
+interface AlgorithmInterface {
+
+    public function getAlgorithmId(): string;
+
+    public function getSigner(): Signer;
+
+    public function getPrivateKey(): Key;
+
+    public function getPublicKey(): Key;
+
+}
diff --git a/api/components/Tokens/Algorithms/ES256.php b/api/components/Tokens/Algorithms/ES256.php
new file mode 100644
index 0000000..7d5dd66
--- /dev/null
+++ b/api/components/Tokens/Algorithms/ES256.php
@@ -0,0 +1,74 @@
+<?php
+declare(strict_types=1);
+
+namespace api\components\Tokens\Algorithms;
+
+use Lcobucci\JWT\Signer;
+use Lcobucci\JWT\Signer\Ecdsa\Sha256;
+use Lcobucci\JWT\Signer\Key;
+
+class ES256 implements AlgorithmInterface {
+
+    /**
+     * @var string
+     */
+    private $privateKey;
+
+    /**
+     * @var string|null
+     */
+    private $privateKeyPass;
+
+    /**
+     * @var string
+     */
+    private $publicKey;
+
+    /**
+     * @var Key|null
+     */
+    private $loadedPrivateKey;
+
+    /**
+     * @var Key|null
+     */
+    private $loadedPublicKey;
+
+    /**
+     * TODO: document arguments
+     *
+     * @param string $privateKey
+     * @param string|null $privateKeyPass
+     * @param string $publicKey
+     */
+    public function __construct(string $privateKey, ?string $privateKeyPass, string $publicKey) {
+        $this->privateKey = $privateKey;
+        $this->privateKeyPass = $privateKeyPass;
+        $this->publicKey = $publicKey;
+    }
+
+    public function getAlgorithmId(): string {
+        return 'ES256';
+    }
+
+    public function getSigner(): Signer {
+        return new Sha256();
+    }
+
+    public function getPrivateKey(): Key {
+        if ($this->loadedPrivateKey === null) {
+            $this->loadedPrivateKey = new Key($this->privateKey, $this->privateKeyPass);
+        }
+
+        return $this->loadedPrivateKey;
+    }
+
+    public function getPublicKey(): Key {
+        if ($this->loadedPublicKey === null) {
+            $this->loadedPublicKey = new Key($this->publicKey);
+        }
+
+        return $this->loadedPublicKey;
+    }
+
+}
diff --git a/api/components/Tokens/Algorithms/HS256.php b/api/components/Tokens/Algorithms/HS256.php
new file mode 100644
index 0000000..2bc7e66
--- /dev/null
+++ b/api/components/Tokens/Algorithms/HS256.php
@@ -0,0 +1,50 @@
+<?php
+declare(strict_types=1);
+
+namespace api\components\Tokens\Algorithms;
+
+use Lcobucci\JWT\Signer;
+use Lcobucci\JWT\Signer\Hmac\Sha256;
+use Lcobucci\JWT\Signer\Key;
+
+class HS256 implements AlgorithmInterface {
+
+    /**
+     * @var string
+     */
+    private $key;
+
+    /**
+     * @var Key|null
+     */
+    private $loadedKey;
+
+    public function __construct(string $key) {
+        $this->key = $key;
+    }
+
+    public function getAlgorithmId(): string {
+        return 'HS256';
+    }
+
+    public function getSigner(): Signer {
+        return new Sha256();
+    }
+
+    public function getPrivateKey(): Key {
+        return $this->loadKey();
+    }
+
+    public function getPublicKey(): Key {
+        return $this->loadKey();
+    }
+
+    private function loadKey(): Key {
+        if ($this->loadedKey === null) {
+            $this->loadedKey = new Key($this->key);
+        }
+
+        return $this->loadedKey;
+    }
+
+}
diff --git a/api/components/Tokens/AlgorithmsManager.php b/api/components/Tokens/AlgorithmsManager.php
new file mode 100644
index 0000000..af9d074
--- /dev/null
+++ b/api/components/Tokens/AlgorithmsManager.php
@@ -0,0 +1,42 @@
+<?php
+declare(strict_types=1);
+
+namespace api\components\Tokens;
+
+use api\components\Tokens\Algorithms\AlgorithmInterface;
+use Webmozart\Assert\Assert;
+
+class AlgorithmsManager {
+
+    /**
+     * @var AlgorithmInterface[]
+     */
+    private $algorithms = [];
+
+    public function __construct(array $algorithms = []) {
+        array_map([$this, 'add'], $algorithms);
+    }
+
+    public function add(AlgorithmInterface $algorithm): self {
+        $id = $algorithm->getAlgorithmId();
+        Assert::keyNotExists($this->algorithms, $id, 'passed algorithm is already exists');
+        $this->algorithms[$algorithm->getSigner()->getAlgorithmId()] = $algorithm;
+
+        return $this;
+    }
+
+    /**
+     * @param string $algorithmId
+     *
+     * @return AlgorithmInterface
+     * @throws AlgorithmIsNotDefinedException
+     */
+    public function get(string $algorithmId): AlgorithmInterface {
+        if (!isset($this->algorithms[$algorithmId])) {
+            throw new AlgorithmIsNotDefinedException($algorithmId);
+        }
+
+        return $this->algorithms[$algorithmId];
+    }
+
+}
diff --git a/api/components/Tokens/Component.php b/api/components/Tokens/Component.php
new file mode 100644
index 0000000..a16cea4
--- /dev/null
+++ b/api/components/Tokens/Component.php
@@ -0,0 +1,96 @@
+<?php
+declare(strict_types=1);
+
+namespace api\components\Tokens;
+
+use Exception;
+use Lcobucci\JWT\Builder;
+use Lcobucci\JWT\Parser;
+use Lcobucci\JWT\Token;
+use yii\base\Component as BaseComponent;
+
+class Component extends BaseComponent {
+
+    private const EXPIRATION_TIMEOUT = 3600; // 1h
+
+    private const PREFERRED_ALGORITHM = 'ES256';
+
+    /**
+     * @var string
+     */
+    public $hmacKey;
+
+    /**
+     * @var string
+     */
+    public $publicKeyPath;
+
+    /**
+     * @var string
+     */
+    public $privateKeyPath;
+
+    /**
+     * @var string|null
+     */
+    public $privateKeyPass;
+
+    /**
+     * @var AlgorithmsManager|null
+     */
+    private $algorithmManager;
+
+    public function create(array $payloads = [], array $headers = []): Token {
+        $time = time();
+        $builder = (new Builder())
+            ->issuedAt($time)
+            ->expiresAt($time + self::EXPIRATION_TIMEOUT);
+        foreach ($payloads as $claim => $value) {
+            $builder->withClaim($claim, $value);
+        }
+
+        foreach ($headers as $claim => $value) {
+            $builder->withHeader($claim, $value);
+        }
+
+        /** @noinspection PhpUnhandledExceptionInspection */
+        $algorithm = $this->getAlgorithmManager()->get(self::PREFERRED_ALGORITHM);
+
+        return $builder->getToken($algorithm->getSigner(), $algorithm->getPrivateKey());
+    }
+
+    /**
+     * @param string $jwt
+     *
+     * @return Token
+     * @throws \InvalidArgumentException
+     */
+    public function parse(string $jwt): Token {
+        return (new Parser())->parse($jwt);
+    }
+
+    public function verify(Token $token): bool {
+        try {
+            $algorithm = $this->getAlgorithmManager()->get($token->getHeader('alg'));
+            return $token->verify($algorithm->getSigner(), $algorithm->getPublicKey());
+        } catch (Exception $e) {
+            return false;
+        }
+    }
+
+    private function getAlgorithmManager(): AlgorithmsManager {
+        if ($this->algorithmManager === null) {
+            $this->algorithmManager = new AlgorithmsManager([
+                new Algorithms\HS256($this->hmacKey),
+                new Algorithms\ES256(
+                    "file://{$this->privateKeyPath}",
+                    $this->privateKeyPass,
+                    "file://{$this->publicKeyPath}"
+                ),
+            ]);
+        }
+
+        return $this->algorithmManager;
+    }
+
+}
diff --git a/api/components/Tokens/TokensFactory.php b/api/components/Tokens/TokensFactory.php
new file mode 100644
index 0000000..e92446a
--- /dev/null
+++ b/api/components/Tokens/TokensFactory.php
@@ -0,0 +1,31 @@
+<?php
+declare(strict_types=1);
+
+namespace api\components\Tokens;
+
+use common\models\Account;
+use common\models\AccountSession;
+use Lcobucci\JWT\Token;
+use Yii;
+
+class TokensFactory {
+
+    public const SUB_ACCOUNT_PREFIX = 'ely|';
+
+    public static function createForAccount(Account $account, AccountSession $session = null): Token {
+        $payloads = [
+            'ely-scopes' => 'accounts_web_user',
+            'sub' => self::SUB_ACCOUNT_PREFIX . $account->id,
+        ];
+        if ($session === null) {
+            // If we don't remember a session, the token should live longer
+            // so that the session doesn't end while working with the account
+            $payloads['exp'] = time() + 60 * 60 * 24 * 7; // 7d
+        } else {
+            $payloads['jti'] = $session->id;
+        }
+
+        return Yii::$app->tokens->create($payloads);
+    }
+
+}
diff --git a/api/components/User/AuthenticationResult.php b/api/components/User/AuthenticationResult.php
deleted file mode 100644
index 3cc0010..0000000
--- a/api/components/User/AuthenticationResult.php
+++ /dev/null
@@ -1,60 +0,0 @@
-<?php
-namespace api\components\User;
-
-use common\models\Account;
-use common\models\AccountSession;
-use Emarref\Jwt\Claim\Expiration;
-
-class AuthenticationResult {
-
-    /**
-     * @var Account
-     */
-    private $account;
-
-    /**
-     * @var string
-     */
-    private $jwt;
-
-    /**
-     * @var AccountSession|null
-     */
-    private $session;
-
-    public function __construct(Account $account, string $jwt, ?AccountSession $session) {
-        $this->account = $account;
-        $this->jwt = $jwt;
-        $this->session = $session;
-    }
-
-    public function getAccount(): Account {
-        return $this->account;
-    }
-
-    public function getJwt(): string {
-        return $this->jwt;
-    }
-
-    public function getSession(): ?AccountSession {
-        return $this->session;
-    }
-
-    public function getAsResponse() {
-        $token = (new Jwt())->deserialize($this->getJwt());
-
-        /** @noinspection NullPointerExceptionInspection */
-        $response = [
-            'access_token' => $this->getJwt(),
-            'expires_in' => $token->getPayload()->findClaimByName(Expiration::NAME)->getValue() - time(),
-        ];
-
-        $session = $this->getSession();
-        if ($session !== null) {
-            $response['refresh_token'] = $session->refresh_token;
-        }
-
-        return $response;
-    }
-
-}
diff --git a/api/components/User/Component.php b/api/components/User/Component.php
index 10d2acf..955a857 100644
--- a/api/components/User/Component.php
+++ b/api/components/User/Component.php
@@ -3,28 +3,11 @@ declare(strict_types=1);
 
 namespace api\components\User;
 
-use api\exceptions\ThisShouldNotHappenException;
 use common\models\Account;
 use common\models\AccountSession;
-use common\rbac\Roles as R;
-use DateInterval;
-use DateTime;
-use Emarref\Jwt\Algorithm\AlgorithmInterface;
-use Emarref\Jwt\Algorithm\Hs256;
-use Emarref\Jwt\Algorithm\Rs256;
-use Emarref\Jwt\Claim;
-use Emarref\Jwt\Encryption\Asymmetric as AsymmetricEncryption;
-use Emarref\Jwt\Encryption\EncryptionInterface;
-use Emarref\Jwt\Encryption\Factory as EncryptionFactory;
-use Emarref\Jwt\Exception\VerificationException;
-use Emarref\Jwt\HeaderParameter\Custom;
-use Emarref\Jwt\Token;
-use Emarref\Jwt\Verification\Context as VerificationContext;
 use Exception;
 use InvalidArgumentException;
-use Webmozart\Assert\Assert;
 use Yii;
-use yii\base\InvalidConfigException;
 use yii\web\UnauthorizedHttpException;
 use yii\web\User as YiiUserComponent;
 
@@ -41,52 +24,29 @@ class Component extends YiiUserComponent {
     public const KEEP_SITE_SESSIONS = 2;
     public const KEEP_CURRENT_SESSION = 4;
 
-    public const JWT_SUBJECT_PREFIX = 'ely|';
-
-    private const LATEST_JWT_VERSION = 1;
-
     public $enableSession = false;
 
     public $loginUrl = null;
 
-    public $identityClass = Identity::class;
-
-    public $secret;
-
-    public $publicKeyPath;
-
-    public $privateKeyPath;
-
-    public $expirationTimeout = 'PT1H';
-
-    public $sessionTimeout = 'P7D';
-
-    private $publicKey;
-
-    private $privateKey;
-
     /**
-     * @var Token[]
+     * We don't use the standard web authorization mechanism via cookies.
+     * Therefore, only one static method findIdentityByAccessToken is used from
+     * the whole IdentityInterface interface, which is implemented in the factory.
+     * The method only used from loginByAccessToken from base class.
+     *
+     * @var string
      */
-    private static $parsedTokensCache = [];
-
-    public function init() {
-        parent::init();
-        Assert::notEmpty($this->secret, 'secret must be specified');
-        Assert::notEmpty($this->publicKeyPath, 'public key path must be specified');
-        Assert::notEmpty($this->privateKeyPath, 'private key path must be specified');
-    }
+    public $identityClass = IdentityFactory::class;
 
     public function findIdentityByAccessToken($accessToken): ?IdentityInterface {
         if (empty($accessToken)) {
             return null;
         }
 
-        /** @var \api\components\User\IdentityInterface|string $identityClass */
-        $identityClass = $this->identityClass;
         try {
-            return $identityClass::findIdentityByAccessToken($accessToken);
+            return IdentityFactory::findIdentityByAccessToken($accessToken);
         } catch (UnauthorizedHttpException $e) {
+            // TODO: if this exception is catched there, how it forms "Token expired" exception?
             // Do nothing. It's okay to catch this.
         } catch (Exception $e) {
             Yii::error($e);
@@ -95,77 +55,6 @@ class Component extends YiiUserComponent {
         return null;
     }
 
-    public function createJwtAuthenticationToken(Account $account, AccountSession $session = null): Token {
-        $token = $this->createToken($account);
-        if ($session !== null) {
-            $token->addClaim(new Claim\JwtId($session->id));
-        } else {
-            // If we don't remember a session, the token should live longer
-            // so that the session doesn't end while working with the account
-            $token->addClaim(new Claim\Expiration((new DateTime())->add(new DateInterval($this->sessionTimeout))));
-        }
-
-        return $token;
-    }
-
-    public function renewJwtAuthenticationToken(AccountSession $session): AuthenticationResult {
-        $transaction = Yii::$app->db->beginTransaction();
-
-        $account = $session->account;
-        $token = $this->createToken($account);
-        $token->addClaim(new Claim\JwtId($session->id));
-        $jwt = $this->serializeToken($token);
-
-        $result = new AuthenticationResult($account, $jwt, $session);
-
-        $session->setIp(Yii::$app->request->userIP);
-        $session->last_refreshed_at = time();
-        if (!$session->save()) {
-            throw new ThisShouldNotHappenException('Cannot update session info');
-        }
-
-        $transaction->commit();
-
-        return $result;
-    }
-
-    public function serializeToken(Token $token): string {
-        $encryption = $this->getEncryptionForVersion(self::LATEST_JWT_VERSION);
-        $this->prepareEncryptionForEncoding($encryption);
-
-        return (new Jwt())->serialize($token, $encryption);
-    }
-
-    /**
-     * @param string $jwtString
-     * @return Token
-     * @throws VerificationException in case when some Claim not pass the validation
-     */
-    public function parseToken(string $jwtString): Token {
-        $token = &self::$parsedTokensCache[$jwtString];
-        if ($token === null) {
-            $jwt = new Jwt();
-            try {
-                $notVerifiedToken = $jwt->deserialize($jwtString);
-            } catch (Exception $e) {
-                throw new VerificationException('Incorrect token encoding', 0, $e);
-            }
-
-            $versionHeader = $notVerifiedToken->getHeader()->findParameterByName('v');
-            $version = $versionHeader ? $versionHeader->getValue() : 0;
-            $encryption = $this->getEncryptionForVersion($version);
-            $this->prepareEncryptionForDecoding($encryption);
-
-            $context = new VerificationContext($encryption);
-            $context->setSubject(self::JWT_SUBJECT_PREFIX);
-            $jwt->verify($notVerifiedToken, $context);
-
-            $token = $notVerifiedToken;
-        }
-
-        return $token;
-    }
-
     /**
      * The method searches AccountSession model, which one has been used to create current JWT token.
      * null will be returned in case when any of the following situations occurred:
@@ -188,17 +77,17 @@ class Component extends YiiUserComponent {
         }
 
         try {
-            $token = $this->parseToken($bearer);
-        } catch (VerificationException $e) {
+            $token = Yii::$app->tokens->parse($bearer);
+        } catch (InvalidArgumentException $e) {
             return null;
         }
 
-        $sessionId = $token->getPayload()->findClaimByName(Claim\JwtId::NAME);
-        if ($sessionId === null) {
+        $sessionId = $token->getClaim('jti', false);
+        if ($sessionId === false) {
             return null;
         }
 
-        return AccountSession::findOne($sessionId->getValue());
+        return AccountSession::findOne($sessionId);
     }
 
     public function terminateSessions(Account $account, int $mode = 0): void {
@@ -222,66 +111,6 @@ class Component extends YiiUserComponent {
         }
     }
 
-    private function getPublicKey() {
-        if (empty($this->publicKey)) {
-            if (!($this->publicKey = file_get_contents($this->publicKeyPath))) {
-                throw new InvalidConfigException('invalid public key path');
-            }
-        }
-
-        return $this->publicKey;
-    }
-
-    private function getPrivateKey() {
-        if (empty($this->privateKey)) {
-            if (!($this->privateKey = file_get_contents($this->privateKeyPath))) {
-                throw new InvalidConfigException('invalid private key path');
-            }
-        }
-
-        return $this->privateKey;
-    }
-
-    private function createToken(Account $account): Token {
-        $token = new Token();
-        $token->addHeader(new Custom('v', 1));
-        foreach ($this->getClaims($account) as $claim) {
-            $token->addClaim($claim);
-        }
-
-        return $token;
-    }
-
-    /**
-     * @param Account $account
-     * @return Claim\AbstractClaim[]
-     */
-    private function getClaims(Account $account): array {
-        $currentTime = new DateTime();
-
-        return [
-            new ScopesClaim([R::ACCOUNTS_WEB_USER]),
-            new Claim\IssuedAt($currentTime),
-            new Claim\Expiration($currentTime->add(new DateInterval($this->expirationTimeout))),
-            new Claim\Subject(self::JWT_SUBJECT_PREFIX . $account->id),
-        ];
-    }
-
-    private function getEncryptionForVersion(int $version): EncryptionInterface {
-        return EncryptionFactory::create($this->getAlgorithm($version ?? 0));
-    }
-
-    private function getAlgorithm(int $version): AlgorithmInterface {
-        switch ($version) {
-            case 0:
-                return new Hs256($this->secret);
-            case 1:
-                return new Rs256();
-        }
-
-        throw new InvalidArgumentException('Unsupported token version');
-    }
-
     private function getBearerToken(): ?string {
         $authHeader = Yii::$app->request->getHeaders()->get('Authorization');
         if ($authHeader === null || !preg_match('/^Bearer\s+(.*?)$/', $authHeader, $matches)) {
@@ -291,16 +120,4 @@ class Component extends YiiUserComponent {
         return $matches[1];
     }
 
-    private function prepareEncryptionForEncoding(EncryptionInterface $encryption): void {
-        if ($encryption instanceof AsymmetricEncryption) {
-            $encryption->setPrivateKey($this->getPrivateKey());
-        }
-    }
-
-    private function prepareEncryptionForDecoding(EncryptionInterface $encryption) {
-        if ($encryption instanceof AsymmetricEncryption) {
-            $encryption->setPublicKey($this->getPublicKey());
-        }
-    }
-
 }
diff --git a/api/components/User/IdentityFactory.php b/api/components/User/IdentityFactory.php
new file mode 100644
index 0000000..f38f47e
--- /dev/null
+++ b/api/components/User/IdentityFactory.php
@@ -0,0 +1,26 @@
+<?php
+declare(strict_types=1);
+
+namespace api\components\User;
+
+use yii\web\UnauthorizedHttpException;
+
+class IdentityFactory {
+
+    /**
+     * @throws UnauthorizedHttpException
+     * @return IdentityInterface
+     */
+    public static function findIdentityByAccessToken($token, $type = null): IdentityInterface {
+        if (empty($token)) {
+            throw new UnauthorizedHttpException('Incorrect token');
+        }
+
+        if (substr_count($token, '.') === 2) {
+            return JwtIdentity::findIdentityByAccessToken($token, $type);
+        }
+
+        return Oauth2Identity::findIdentityByAccessToken($token, $type);
+    }
+
+}
diff --git a/api/components/User/Jwt.php b/api/components/User/Jwt.php
deleted file mode 100644
index f8f74b0..0000000
--- a/api/components/User/Jwt.php
+++ /dev/null
@@ -1,23 +0,0 @@
-<?php
-namespace api\components\User;
-
-use Emarref\Jwt\Verification\Context;
-use Emarref\Jwt\Verification\SubjectVerifier;
-
-class Jwt extends \Emarref\Jwt\Jwt {
-
-    protected function getVerifiers(Context $context): array {
-        $verifiers = parent::getVerifiers($context);
-        foreach ($verifiers as $i => $verifier) {
-            if (!$verifier instanceof SubjectVerifier) {
-                continue;
-            }
-
-            $verifiers[$i] = new SubjectPrefixVerifier($context->getSubject());
-            break;
-        }
-
-        return $verifiers;
-    }
-
-}
diff --git a/api/components/User/JwtIdentity.php b/api/components/User/JwtIdentity.php
index 71b41e1..479351f 100644
--- a/api/components/User/JwtIdentity.php
+++ b/api/components/User/JwtIdentity.php
@@ -1,82 +1,80 @@
 <?php
+declare(strict_types=1);
+
 namespace api\components\User;
 
+use api\components\Tokens\TokensFactory;
 use common\models\Account;
-use Emarref\Jwt\Claim\Subject;
-use Emarref\Jwt\Exception\ExpiredException;
-use Emarref\Jwt\Token;
 use Exception;
+use Lcobucci\JWT\Token;
+use Lcobucci\JWT\ValidationData;
+use Webmozart\Assert\Assert;
 use Yii;
 use yii\base\NotSupportedException;
-use yii\helpers\StringHelper;
 use yii\web\UnauthorizedHttpException;
 
 class JwtIdentity implements IdentityInterface {
 
-    /**
-     * @var string
-     */
-    private $rawToken;
-
     /**
      * @var Token
      */
     private $token;
 
-    private function __construct(string $rawToken, Token $token) {
-        $this->rawToken = $rawToken;
+    private function __construct(Token $token) {
         $this->token = $token;
     }
 
     public static function findIdentityByAccessToken($rawToken, $type = null): IdentityInterface {
-        /** @var \api\components\User\Component $component */
-        $component = Yii::$app->user;
         try {
-            $token = $component->parseToken($rawToken);
-        } catch (ExpiredException $e) {
-            throw new UnauthorizedHttpException('Token expired');
+            $token = Yii::$app->tokens->parse($rawToken);
         } catch (Exception $e) {
             Yii::error($e);
             throw new UnauthorizedHttpException('Incorrect token');
         }
 
-        return new self($rawToken, $token);
+        if (!Yii::$app->tokens->verify($token)) {
+            throw new UnauthorizedHttpException('Incorrect token');
+        }
+
+        if ($token->isExpired()) {
+            throw new UnauthorizedHttpException('Token expired');
+        }
+
+        if (!$token->validate(new ValidationData())) {
+            throw new UnauthorizedHttpException('Incorrect token');
+        }
+
+        $sub = $token->getClaim('sub', false);
+        if ($sub !== false && strpos($sub, TokensFactory::SUB_ACCOUNT_PREFIX) !== 0) {
+            throw new UnauthorizedHttpException('Incorrect token');
+        }
+
+        return new self($token);
     }
 
     public function getAccount(): ?Account {
-        /** @var Subject $subject */
-        $subject = $this->token->getPayload()->findClaimByName(Subject::NAME);
-        if ($subject === null) {
+        $subject = $this->token->getClaim('sub', false);
+        if ($subject === false) {
             return null;
         }
 
-        $value = $subject->getValue();
-        if (!StringHelper::startsWith($value, Component::JWT_SUBJECT_PREFIX)) {
-            Yii::warning('Unknown jwt subject: ' . $value);
-            return null;
-        }
+        Assert::startsWith($subject, TokensFactory::SUB_ACCOUNT_PREFIX);
+        $accountId = (int)mb_substr($subject, mb_strlen(TokensFactory::SUB_ACCOUNT_PREFIX));
 
-        $accountId = (int)mb_substr($value, mb_strlen(Component::JWT_SUBJECT_PREFIX));
-        $account = Account::findOne($accountId);
-        if ($account === null) {
-            return null;
-        }
-
-        return $account;
+        return Account::findOne(['id' => $accountId]);
     }
 
     public function getAssignedPermissions(): array {
-        /** @var Subject $scopesClaim */
-        $scopesClaim = $this->token->getPayload()->findClaimByName(ScopesClaim::NAME);
-        if ($scopesClaim === null) {
+        $scopesClaim = $this->token->getClaim('ely-scopes', false);
+        if ($scopesClaim === false) {
             return [];
         }
 
-        return explode(',', $scopesClaim->getValue());
+        return explode(',', $scopesClaim);
     }
 
     public function getId(): string {
-        return $this->rawToken;
+        return (string)$this->token;
     }
 
     public function getAuthKey() {
diff --git a/api/components/User/Identity.php b/api/components/User/Oauth2Identity.php
similarity index 81%
rename from api/components/User/Identity.php
rename to api/components/User/Oauth2Identity.php
index 0220eb2..8a9001a 100644
--- a/api/components/User/Identity.php
+++ b/api/components/User/Oauth2Identity.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 namespace api\components\User;
 
 use api\components\OAuth2\Entities\AccessTokenEntity;
@@ -8,10 +10,7 @@ use Yii;
 use yii\base\NotSupportedException;
 use yii\web\UnauthorizedHttpException;
 
-/**
- * @property Account $account
- */
-class Identity implements IdentityInterface {
+class Oauth2Identity implements IdentityInterface {
 
     /**
      * @var AccessTokenEntity
@@ -24,19 +23,10 @@ class Identity implements IdentityInterface {
 
     /**
      * @inheritdoc
-     * @throws \yii\web\UnauthorizedHttpException
+     * @throws UnauthorizedHttpException
      * @return IdentityInterface
      */
     public static function findIdentityByAccessToken($token, $type = null): IdentityInterface {
-        if ($token === null) {
-            throw new UnauthorizedHttpException('Incorrect token');
-        }
-
-        // Speed-improved analogue of the `count(explode('.', $token)) === 3`
-        if (substr_count($token, '.') === 2) {
-            return JwtIdentity::findIdentityByAccessToken($token, $type);
-        }
-
         /** @var AccessTokenEntity|null $model */
         $model = Yii::$app->oauth->getAccessTokenStorage()->get($token);
         if ($model === null) {
diff --git a/api/components/User/ScopesClaim.php b/api/components/User/ScopesClaim.php
deleted file mode 100644
index d89c76b..0000000
--- a/api/components/User/ScopesClaim.php
+++ /dev/null
@@ -1,30 +0,0 @@
-<?php
-namespace api\components\User;
-
-use Emarref\Jwt\Claim\AbstractClaim;
-
-class ScopesClaim extends AbstractClaim {
-
-    public const NAME = 'ely-scopes';
-
-    /**
-     * ScopesClaim constructor.
-     *
-     * @param array|string $value
-     */
-    public function __construct($value = null) {
-        if (is_array($value)) {
-            $value = implode(',', $value);
-        }
-
-        parent::__construct($value);
-    }
-
-    /**
-     * @inheritdoc
-     */
-    public function getName(): string {
-        return self::NAME;
-    }
-
-}
diff --git a/api/components/User/SubjectPrefixVerifier.php b/api/components/User/SubjectPrefixVerifier.php
deleted file mode 100644
index 614d6d7..0000000
--- a/api/components/User/SubjectPrefixVerifier.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-namespace api\components\User;
-
-use Emarref\Jwt\Claim\Subject;
-use Emarref\Jwt\Exception\InvalidSubjectException;
-use Emarref\Jwt\Token;
-use Emarref\Jwt\Verification\VerifierInterface;
-use yii\helpers\StringHelper;
-
-class SubjectPrefixVerifier implements VerifierInterface {
-
-    private $subjectPrefix;
-
-    public function __construct(string $subjectPrefix) {
-        $this->subjectPrefix = $subjectPrefix;
-    }
-
-    public function verify(Token $token): void {
-        /** @var Subject $subjectClaim */
-        $subjectClaim = $token->getPayload()->findClaimByName(Subject::NAME);
-        $subject = ($subjectClaim === null) ? null : $subjectClaim->getValue();
-
-        if (!StringHelper::startsWith($subject, $this->subjectPrefix)) {
-            throw new InvalidSubjectException();
-        }
-    }
-
-}
diff --git a/api/config/config-test.php b/api/config/config-test.php
index 02ad46e..8f0952d 100644
--- a/api/config/config-test.php
+++ b/api/config/config-test.php
@@ -1,8 +1,11 @@
 <?php
 return [
     'components' => [
-        'user' => [
-            'secret' => 'tests-secret-key',
+        'tokens' => [
+            'hmacKey' => 'tests-secret-key',
+            'privateKeyPath' => codecept_data_dir('certs/private.pem'),
+            'privateKeyPass' => null,
+            'publicKeyPath' => codecept_data_dir('certs/public.pem'),
         ],
         'reCaptcha' => [
             'public' => 'public-key',
diff --git a/api/config/config.php b/api/config/config.php
index 8fdec47..1a9ffc2 100644
--- a/api/config/config.php
+++ b/api/config/config.php
@@ -10,9 +10,13 @@ return [
     'components' => [
         'user' => [
             'class' => api\components\User\Component::class,
-            'secret' => getenv('JWT_USER_SECRET'),
-            'publicKeyPath' => getenv('JWT_PUBLIC_KEY') ?: 'data/certs/public.crt',
-            'privateKeyPath' => getenv('JWT_PRIVATE_KEY') ?: 'data/certs/private.key',
+        ],
+        'tokens' => [
+            'class' => api\components\Tokens\Component::class,
+            'hmacKey' => getenv('JWT_USER_SECRET'),
+            'privateKeyPath' => getenv('JWT_PRIVATE_KEY_PATH') ?: __DIR__ . '/../../data/certs/private.pem',
+            'privateKeyPass' => getenv('JWT_PRIVATE_KEY_PASS') ?: null,
+            'publicKeyPath' => getenv('JWT_PUBLIC_KEY_PATH') ?: __DIR__ . '/../../data/certs/public.pem',
         ],
         'log' => [
             'traceLevel' => YII_DEBUG ? 3 : 0,
diff --git a/api/controllers/AuthenticationController.php b/api/controllers/AuthenticationController.php
index 27f1995..ee8c000 100644
--- a/api/controllers/AuthenticationController.php
+++ b/api/controllers/AuthenticationController.php
@@ -51,7 +51,7 @@ class AuthenticationController extends Controller {
     public function actionLogin() {
         $model = new LoginForm();
         $model->load(Yii::$app->request->post());
-        if (($result = $model->login()) === false) {
+        if (($result = $model->login()) === null) {
             $data = [
                 'success' => false,
                 'errors' => $model->getFirstErrors(),
@@ -66,7 +66,7 @@ class AuthenticationController extends Controller {
 
         return array_merge([
             'success' => true,
-        ], $result->getAsResponse());
+        ], $result->formatAsOAuth2Response());
     }
 
     public function actionLogout() {
@@ -117,7 +117,7 @@ class AuthenticationController extends Controller {
     public function actionRecoverPassword() {
         $model = new RecoverPasswordForm();
         $model->load(Yii::$app->request->post());
-        if (($result = $model->recoverPassword()) === false) {
+        if (($result = $model->recoverPassword()) === null) {
             return [
                 'success' => false,
                 'errors' => $model->getFirstErrors(),
@@ -126,20 +126,20 @@ class AuthenticationController extends Controller {
 
         return array_merge([
             'success' => true,
-        ], $result->getAsResponse());
+        ], $result->formatAsOAuth2Response());
     }
 
     public function actionRefreshToken() {
         $model = new RefreshTokenForm();
         $model->load(Yii::$app->request->post());
-        if (($result = $model->renew()) === false) {
+        if (($result = $model->renew()) === null) {
             return [
                 'success' => false,
                 'errors' => $model->getFirstErrors(),
             ];
         }
 
-        $response = $result->getAsResponse();
+        $response = $result->formatAsOAuth2Response();
         unset($response['refresh_token']);
 
         return array_merge([
diff --git a/api/controllers/SignupController.php b/api/controllers/SignupController.php
index 3634dc7..4f209f0 100644
--- a/api/controllers/SignupController.php
+++ b/api/controllers/SignupController.php
@@ -89,7 +89,7 @@ class SignupController extends Controller {
 
         return array_merge([
             'success' => true,
-        ], $result->getAsResponse());
+        ], $result->formatAsOAuth2Response());
     }
 
 }
diff --git a/api/models/authentication/AuthenticationResult.php b/api/models/authentication/AuthenticationResult.php
new file mode 100644
index 0000000..5e1db23
--- /dev/null
+++ b/api/models/authentication/AuthenticationResult.php
@@ -0,0 +1,47 @@
+<?php
+declare(strict_types=1);
+
+namespace api\models\authentication;
+
+use Lcobucci\JWT\Token;
+
+class AuthenticationResult {
+
+    /**
+     * @var Token
+     */
+    private $token;
+
+    /**
+     * @var string|null
+     */
+    private $refreshToken;
+
+    public function __construct(Token $token, string $refreshToken = null) {
+        $this->token = $token;
+        $this->refreshToken = $refreshToken;
+    }
+
+    public function getToken(): Token {
+        return $this->token;
+    }
+
+    public function getRefreshToken(): ?string {
+        return $this->refreshToken;
+    }
+
+    public function formatAsOAuth2Response(): array {
+        $response = [
+            'access_token' => (string)$this->token,
+            'expires_in' => $this->token->getClaim('exp') - time(),
+        ];
+
+        $refreshToken = $this->refreshToken;
+        if ($refreshToken !== null) {
+            $response['refresh_token'] = $refreshToken;
+        }
+
+        return $response;
+    }
+
+}
diff --git a/api/models/authentication/ConfirmEmailForm.php b/api/models/authentication/ConfirmEmailForm.php
index 9738bd2..60c6608 100644
--- a/api/models/authentication/ConfirmEmailForm.php
+++ b/api/models/authentication/ConfirmEmailForm.php
@@ -4,7 +4,7 @@ declare(strict_types=1);
 namespace api\models\authentication;
 
 use api\aop\annotations\CollectModelMetrics;
-use api\components\User\AuthenticationResult;
+use api\components\Tokens\TokensFactory;
 use api\models\base\ApiForm;
 use api\validators\EmailActivationKeyValidator;
 use common\models\Account;
@@ -25,12 +25,10 @@ class ConfirmEmailForm extends ApiForm {
 
     /**
      * @CollectModelMetrics(prefix="signup.confirmEmail")
-     * @return AuthenticationResult|bool
-     * @throws \Throwable
      */
-    public function confirm() {
+    public function confirm(): ?AuthenticationResult {
         if (!$this->validate()) {
-            return false;
+            return null;
         }
 
         $transaction = Yii::$app->db->beginTransaction();
@@ -39,6 +37,7 @@ class ConfirmEmailForm extends ApiForm {
         $confirmModel = $this->key;
         $account = $confirmModel->account;
         $account->status = Account::STATUS_ACTIVE;
+        /** @noinspection PhpUnhandledExceptionInspection */
         Assert::notSame($confirmModel->delete(), false, 'Unable remove activation key.');
 
         Assert::true($account->save(), 'Unable activate user account.');
@@ -49,12 +48,11 @@ class ConfirmEmailForm extends ApiForm {
         $session->generateRefreshToken();
         Assert::true($session->save(), 'Cannot save account session model');
 
-        $token = Yii::$app->user->createJwtAuthenticationToken($account, $session);
-        $jwt = Yii::$app->user->serializeToken($token);
+        $token = TokensFactory::createForAccount($account, $session);
 
         $transaction->commit();
 
-        return new AuthenticationResult($account, $jwt, $session);
+        return new AuthenticationResult($token, $session->refresh_token);
     }
 
 }
diff --git a/api/models/authentication/LoginForm.php b/api/models/authentication/LoginForm.php
index 9925a7f..88c86ed 100644
--- a/api/models/authentication/LoginForm.php
+++ b/api/models/authentication/LoginForm.php
@@ -4,7 +4,7 @@ declare(strict_types=1);
 namespace api\models\authentication;
 
 use api\aop\annotations\CollectModelMetrics;
-use api\components\User\AuthenticationResult;
+use api\components\Tokens\TokensFactory;
 use api\models\base\ApiForm;
 use api\traits\AccountFinder;
 use api\validators\TotpValidator;
@@ -30,12 +30,12 @@ class LoginForm extends ApiForm {
             ['login', 'required', 'message' => E::LOGIN_REQUIRED],
             ['login', 'validateLogin'],
 
-            ['password', 'required', 'when' => function(self $model) {
+            ['password', 'required', 'when' => function(self $model): bool {
                 return !$model->hasErrors();
             }, 'message' => E::PASSWORD_REQUIRED],
             ['password', 'validatePassword'],
 
-            ['totp', 'required', 'when' => function(self $model) {
+            ['totp', 'required', 'when' => function(self $model): bool {
                 return !$model->hasErrors() && $model->getAccount()->is_otp_enabled;
             }, 'message' => E::TOTP_REQUIRED],
             ['totp', 'validateTotp'],
@@ -97,11 +97,10 @@ class LoginForm extends ApiForm {
 
     /**
      * @CollectModelMetrics(prefix="authentication.login")
-     * @return AuthenticationResult|bool
      */
-    public function login() {
+    public function login(): ?AuthenticationResult {
         if (!$this->validate()) {
-            return false;
+            return null;
         }
 
         $transaction = Yii::$app->db->beginTransaction();
@@ -113,21 +112,22 @@ class LoginForm extends ApiForm {
             Assert::true($account->save(), 'Unable to upgrade user\'s password');
         }
 
-        $session = null;
+        $refreshToken = null;
         if ($this->rememberMe) {
             $session = new AccountSession();
             $session->account_id = $account->id;
             $session->setIp(Yii::$app->request->userIP);
             $session->generateRefreshToken();
             Assert::true($session->save(), 'Cannot save account session model');
+
+            $refreshToken = $session->refresh_token;
         }
 
-        $token = Yii::$app->user->createJwtAuthenticationToken($account, $session);
-        $jwt = Yii::$app->user->serializeToken($token);
+        $token = TokensFactory::createForAccount($account, $session);
 
         $transaction->commit();
 
-        return new AuthenticationResult($account, $jwt, $session);
+        return new AuthenticationResult($token, $refreshToken);
     }
 
 }
diff --git a/api/models/authentication/RecoverPasswordForm.php b/api/models/authentication/RecoverPasswordForm.php
index 6f0e186..957c1ec 100644
--- a/api/models/authentication/RecoverPasswordForm.php
+++ b/api/models/authentication/RecoverPasswordForm.php
@@ -4,6 +4,7 @@ declare(strict_types=1);
 namespace api\models\authentication;
 
 use api\aop\annotations\CollectModelMetrics;
+use api\components\Tokens\TokensFactory;
 use api\models\base\ApiForm;
 use api\validators\EmailActivationKeyValidator;
 use common\helpers\Error as E;
@@ -38,12 +39,10 @@ class RecoverPasswordForm extends ApiForm {
 
     /**
      * @CollectModelMetrics(prefix="authentication.recoverPassword")
-     * @return \api\components\User\AuthenticationResult|bool
-     * @throws \Throwable
      */
-    public function recoverPassword() {
+    public function recoverPassword(): ?AuthenticationResult {
         if (!$this->validate()) {
-            return false;
+            return null;
         }
 
         $transaction = Yii::$app->db->beginTransaction();
@@ -52,16 +51,16 @@ class RecoverPasswordForm extends ApiForm {
         $confirmModel = $this->key;
         $account = $confirmModel->account;
         $account->password = $this->newPassword;
+        /** @noinspection PhpUnhandledExceptionInspection */
         Assert::notSame($confirmModel->delete(), false, 'Unable remove activation key.');
 
         Assert::true($account->save(), 'Unable activate user account.');
 
-        $token = Yii::$app->user->createJwtAuthenticationToken($account);
-        $jwt = Yii::$app->user->serializeToken($token);
+        $token = TokensFactory::createForAccount($account);
 
         $transaction->commit();
 
-        return new \api\components\User\AuthenticationResult($account, $jwt, null);
+        return new AuthenticationResult($token);
     }
 
 }
diff --git a/api/models/authentication/RefreshTokenForm.php b/api/models/authentication/RefreshTokenForm.php
index 378f3af..92cd72c 100644
--- a/api/models/authentication/RefreshTokenForm.php
+++ b/api/models/authentication/RefreshTokenForm.php
@@ -1,10 +1,14 @@
 <?php
+declare(strict_types=1);
+
 namespace api\models\authentication;
 
 use api\aop\annotations\CollectModelMetrics;
+use api\components\Tokens\TokensFactory;
 use api\models\base\ApiForm;
 use common\helpers\Error as E;
 use common\models\AccountSession;
+use Webmozart\Assert\Assert;
 use Yii;
 
 class RefreshTokenForm extends ApiForm {
@@ -16,41 +20,45 @@ class RefreshTokenForm extends ApiForm {
      */
     private $session;
 
-    public function rules() {
+    public function rules(): array {
         return [
             ['refresh_token', 'required', 'message' => E::REFRESH_TOKEN_REQUIRED],
             ['refresh_token', 'validateRefreshToken'],
         ];
     }
 
-    public function validateRefreshToken() {
-        if (!$this->hasErrors()) {
-            /** @var AccountSession|null $token */
-            if ($this->getSession() === null) {
-                $this->addError('refresh_token', E::REFRESH_TOKEN_NOT_EXISTS);
-            }
+    public function validateRefreshToken(): void {
+        if (!$this->hasErrors() && $this->findSession() === null) {
+            $this->addError('refresh_token', E::REFRESH_TOKEN_NOT_EXISTS);
         }
     }
 
     /**
      * @CollectModelMetrics(prefix="authentication.renew")
-     * @return \api\components\User\AuthenticationResult|bool
      */
-    public function renew() {
+    public function renew(): ?AuthenticationResult {
         if (!$this->validate()) {
-            return false;
+            return null;
         }
 
-        /** @var \api\components\User\Component $component */
-        $component = Yii::$app->user;
+        /** @var AccountSession $session */
+        $session = $this->findSession();
+        $account = $session->account;
 
-        return $component->renewJwtAuthenticationToken($this->getSession());
+        $transaction = Yii::$app->db->beginTransaction();
+
+        $token = TokensFactory::createForAccount($account, $session);
+
+        $session->setIp(Yii::$app->request->userIP);
+        $session->touch('last_refreshed_at');
+        Assert::true($session->save(), 'Cannot update session info');
+
+        $transaction->commit();
+
+        return new AuthenticationResult($token, $session->refresh_token);
     }
 
-    /**
-     * @return AccountSession|null
-     */
-    public function getSession() {
+    private function findSession(): ?AccountSession {
         if ($this->session === null) {
             $this->session = AccountSession::findOne(['refresh_token' => $this->refresh_token]);
         }
diff --git a/api/tests/_data/certs/private.pem b/api/tests/_data/certs/private.pem
new file mode 100644
index 0000000..fde4474
--- /dev/null
+++ b/api/tests/_data/certs/private.pem
@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIKrv4e6B9XP7l8F94ZMJotA+7FtjK7k9/olQi7Eb2tgmoAoGCCqGSM49
+AwEHoUQDQgAES2Pyq9r0CyyviLaWwq0ki5uy8hr/ZbNO++3j4XP43uLD9/GYkrKG
+IRl+Hu5HT+LwZvrFcEaVhPk5CvtV4zlYJg==
+-----END EC PRIVATE KEY-----
diff --git a/api/tests/_data/certs/public.pem b/api/tests/_data/certs/public.pem
new file mode 100644
index 0000000..684c55a
--- /dev/null
+++ b/api/tests/_data/certs/public.pem
@@ -0,0 +1,4 @@
+-----BEGIN PUBLIC KEY-----
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAES2Pyq9r0CyyviLaWwq0ki5uy8hr/
+ZbNO++3j4XP43uLD9/GYkrKGIRl+Hu5HT+LwZvrFcEaVhPk5CvtV4zlYJg==
+-----END PUBLIC KEY-----
diff --git a/api/tests/_support/FunctionalTester.php b/api/tests/_support/FunctionalTester.php
index f1d66f6..5061011 100644
--- a/api/tests/_support/FunctionalTester.php
+++ b/api/tests/_support/FunctionalTester.php
@@ -3,6 +3,7 @@ declare(strict_types=1);
 
 namespace api\tests;
 
+use api\components\Tokens\TokensFactory;
 use api\tests\_generated\FunctionalTesterActions;
 use Codeception\Actor;
 use common\models\Account;
@@ -12,16 +13,15 @@ use Yii;
 class FunctionalTester extends Actor {
     use FunctionalTesterActions;
 
-    public function amAuthenticated(string $asUsername = 'admin') {
+    public function amAuthenticated(string $asUsername = 'admin'): int {
         /** @var Account $account */
         $account = Account::findOne(['username' => $asUsername]);
         if ($account === null) {
-            throw new InvalidArgumentException("Cannot find account for username \"{$asUsername}\"");
+            throw new InvalidArgumentException("Cannot find account with username \"{$asUsername}\"");
         }
 
-        $token = Yii::$app->user->createJwtAuthenticationToken($account);
-        $jwt = Yii::$app->user->serializeToken($token);
-        $this->amBearerAuthenticated($jwt);
+        $token = TokensFactory::createForAccount($account);
+        $this->amBearerAuthenticated((string)$token);
 
         return $account->id;
     }
@@ -31,10 +31,10 @@ class FunctionalTester extends Actor {
         Yii::$app->user->logout();
     }
 
-    public function canSeeAuthCredentials($expectRefresh = false): void {
+    public function canSeeAuthCredentials($expectRefreshToken = false): void {
         $this->canSeeResponseJsonMatchesJsonPath('$.access_token');
         $this->canSeeResponseJsonMatchesJsonPath('$.expires_in');
-        if ($expectRefresh) {
+        if ($expectRefreshToken) {
             $this->canSeeResponseJsonMatchesJsonPath('$.refresh_token');
         } else {
             $this->cantSeeResponseJsonMatchesJsonPath('$.refresh_token');
diff --git a/api/tests/unit/components/Tokens/ComponentTest.php b/api/tests/unit/components/Tokens/ComponentTest.php
new file mode 100644
index 0000000..8792eeb
--- /dev/null
+++ b/api/tests/unit/components/Tokens/ComponentTest.php
@@ -0,0 +1,92 @@
+<?php
+declare(strict_types=1);
+
+namespace api\tests\unit\components\Tokens;
+
+use api\tests\unit\TestCase;
+use InvalidArgumentException;
+use Lcobucci\JWT\Parser;
+use Lcobucci\JWT\Token;
+use Yii;
+
+class ComponentTest extends TestCase {
+
+    /**
+     * @var \api\components\Tokens\Component
+     */
+    private $component;
+
+    protected function _setUp() {
+        parent::_setUp();
+        $this->component = Yii::$app->tokens;
+    }
+
+    public function testCreate() {
+        // Run without any arguments
+        $token = $this->component->create();
+        $this->assertSame('ES256', $token->getHeader('alg'));
+        $this->assertEmpty(array_diff(array_keys($token->getClaims()), ['iat', 'exp']));
+        $this->assertEqualsWithDelta(time(), $token->getClaim('iat'), 1);
+        $this->assertEqualsWithDelta(time() + 3600, $token->getClaim('exp'), 2);
+
+        // Pass custom payloads
+        $token = $this->component->create(['find' => 'me']);
+        $this->assertArrayHasKey('find', $token->getClaims());
+        $this->assertSame('me', $token->getClaim('find'));
+
+        // Pass custom headers
+        $token = $this->component->create([], ['find' => 'me']);
+        $this->assertArrayHasKey('find', $token->getHeaders());
+        $this->assertSame('me', $token->getHeader('find'));
+    }
+
+    public function testParse() {
+        // Valid token signed with HS256
+        $token = $this->component->parse('eyJhbGciOiJIUzI1NiJ9.eyJlbHktc2NvcGVzIjoiYWNjb3VudHNfd2ViX3VzZXIiLCJpYXQiOjE1NjQ1Mjc0NzYsImV4cCI6MTU2NDUzMTA3Niwic3ViIjoiZWx5fDEiLCJqdGkiOjMwNjk1OTJ9.ixapBbhaUCejbcPTnFi5nqk75XKd1_lQJd1ZPgGTLEc');
+        $this->assertValidParsedToken($token, 'HS256');
+
+        // Valid token signed with ES256
+        $token = $this->component->parse('eyJhbGciOiJFUzI1NiJ9.eyJlbHktc2NvcGVzIjoiYWNjb3VudHNfd2ViX3VzZXIiLCJpYXQiOjE1NjQ1Mjc0NzYsImV4cCI6MTU2NDUzMTA3Niwic3ViIjoiZWx5fDEiLCJqdGkiOjMwNjk1OTJ9.M8Kam9bv0BXui3k7Posq_vc0I95Kb_Tw7L2vPdEPlwsHqh1VJHoWtlQc32_SlsotttL7j6RYbffBkRFX2wDGFQ');
+        $this->assertValidParsedToken($token, 'ES256');
+
+        // Valid token signed with ES256, but the signature is invalid
+        $token = $this->component->parse('eyJhbGciOiJFUzI1NiJ9.eyJlbHktc2NvcGVzIjoiYWNjb3VudHNfd2ViX3VzZXIiLCJpYXQiOjE1NjQ1Mjc0NzYsImV4cCI6MTU2NDUzMTA3Niwic3ViIjoiZWx5fDEiLCJqdGkiOjMwNjk1OTJ9.xxx');
+        $this->assertValidParsedToken($token, 'ES256');
+
+        // Completely invalid token
+        $this->expectException(InvalidArgumentException::class);
+        $this->component->parse('How do you tame a horse in Minecraft?');
+    }
+
+    /**
+     * @dataProvider getVerifyCases
+     */
+    public function testVerify(Token $token, bool $shouldBeValid) {
+        $this->assertSame($shouldBeValid, $this->component->verify($token));
+    }
+
+    public function getVerifyCases() {
+        yield 'HS256' => [
+            (new Parser())->parse('eyJhbGciOiJIUzI1NiJ9.eyJlbHktc2NvcGVzIjoiYWNjb3VudHNfd2ViX3VzZXIiLCJpYXQiOjE1NjQ1Mjc0NzYsImV4cCI6MTU2NDUzMTA3Niwic3ViIjoiZWx5fDEiLCJqdGkiOjMwNjk1OTJ9.ixapBbhaUCejbcPTnFi5nqk75XKd1_lQJd1ZPgGTLEc'),
+            true,
+        ];
+        yield 'ES256' => [
+            (new Parser())->parse('eyJhbGciOiJFUzI1NiJ9.eyJlbHktc2NvcGVzIjoiYWNjb3VudHNfd2ViX3VzZXIiLCJpYXQiOjE1NjQ1Mjc0NzYsImV4cCI6MTU2NDUzMTA3Niwic3ViIjoiZWx5fDEiLCJqdGkiOjMwNjk1OTJ9.M8Kam9bv0BXui3k7Posq_vc0I95Kb_Tw7L2vPdEPlwsHqh1VJHoWtlQc32_SlsotttL7j6RYbffBkRFX2wDGFQ'),
+            true,
+        ];
+        yield 'ES256 with an invalid signature' => [
+            (new Parser())->parse('eyJhbGciOiJFUzI1NiJ9.eyJlbHktc2NvcGVzIjoiYWNjb3VudHNfd2ViX3VzZXIiLCJpYXQiOjE1NjQ1Mjc0NzYsImV4cCI6MTU2NDUzMTA3Niwic3ViIjoiZWx5fDEiLCJqdGkiOjMwNjk1OTJ9.xxx'),
+            false,
+        ];
+    }
+
+    private function assertValidParsedToken(Token $token, string $expectedAlg) {
+        $this->assertSame($expectedAlg, $token->getHeader('alg'));
+        $this->assertSame(1564527476, $token->getClaim('iat'));
+        $this->assertSame(1564531076, $token->getClaim('exp'));
+        $this->assertSame('ely|1', $token->getClaim('sub'));
+        $this->assertSame(3069592, $token->getClaim('jti'));
+        $this->assertSame('accounts_web_user', $token->getClaim('ely-scopes'));
+    }
+
+}
diff --git a/api/tests/unit/components/Tokens/TokensFactoryTest.php b/api/tests/unit/components/Tokens/TokensFactoryTest.php
new file mode 100644
index 0000000..cd54c00
--- /dev/null
+++ b/api/tests/unit/components/Tokens/TokensFactoryTest.php
@@ -0,0 +1,35 @@
+<?php
+declare(strict_types=1);
+
+namespace api\tests\unit\components\Tokens;
+
+use api\components\Tokens\TokensFactory;
+use api\tests\unit\TestCase;
+use common\models\Account;
+use common\models\AccountSession;
+
+class TokensFactoryTest extends TestCase {
+
+    public function testCreateForAccount() {
+        $account = new Account();
+        $account->id = 1;
+
+        $token = TokensFactory::createForAccount($account);
+        $this->assertEqualsWithDelta(time(), $token->getClaim('iat'), 1);
+        $this->assertEqualsWithDelta(time() + 60 * 60 * 24 * 7, $token->getClaim('exp'), 2);
+        $this->assertSame('ely|1', $token->getClaim('sub'));
+        $this->assertSame('accounts_web_user', $token->getClaim('ely-scopes'));
+        $this->assertArrayNotHasKey('jti', $token->getClaims());
+
+        $session = new AccountSession();
+        $session->id = 2;
+
+        $token = TokensFactory::createForAccount($account, $session);
+        $this->assertEqualsWithDelta(time(), $token->getClaim('iat'), 1);
+        $this->assertEqualsWithDelta(time() + 3600, $token->getClaim('exp'), 2);
+        $this->assertSame('ely|1', $token->getClaim('sub'));
+        $this->assertSame('accounts_web_user', $token->getClaim('ely-scopes'));
+        $this->assertSame(2, $token->getClaim('jti'));
+    }
+
+}
diff --git a/api/tests/unit/components/User/ComponentTest.php b/api/tests/unit/components/User/ComponentTest.php
index a22fced..6dd371b 100644
--- a/api/tests/unit/components/User/ComponentTest.php
+++ b/api/tests/unit/components/User/ComponentTest.php
@@ -4,7 +4,7 @@ declare(strict_types=1);
 namespace codeception\api\unit\components\User;
 
 use api\components\User\Component;
-use api\components\User\Identity;
+use api\components\User\IdentityFactory;
 use api\tests\unit\TestCase;
 use common\models\Account;
 use common\models\AccountSession;
@@ -36,29 +36,7 @@ class ComponentTest extends TestCase {
         ];
     }
 
-    public function testCreateJwtAuthenticationToken() {
-        $this->mockRequest();
-
-        // Token without session
-        $account = new Account(['id' => 1]);
-        $token = $this->component->createJwtAuthenticationToken($account);
-        $payloads = $token->getPayload();
-        $this->assertEqualsWithDelta(time(), $payloads->findClaimByName('iat')->getValue(), 3);
-        $this->assertEqualsWithDelta(time() + 60 * 60 * 24 * 7, $payloads->findClaimByName('exp')->getValue(), 3);
-        $this->assertSame('ely|1', $payloads->findClaimByName('sub')->getValue());
-        $this->assertSame('accounts_web_user', $payloads->findClaimByName('ely-scopes')->getValue());
-        $this->assertNull($payloads->findClaimByName('jti'));
-
-        $session = new AccountSession(['id' => 2]);
-        $token = $this->component->createJwtAuthenticationToken($account, $session);
-        $payloads = $token->getPayload();
-        $this->assertEqualsWithDelta(time(), $payloads->findClaimByName('iat')->getValue(), 3);
-        $this->assertEqualsWithDelta(time() + 3600, $payloads->findClaimByName('exp')->getValue(), 3);
-        $this->assertSame('ely|1', $payloads->findClaimByName('sub')->getValue());
-        $this->assertSame('accounts_web_user', $payloads->findClaimByName('ely-scopes')->getValue());
-        $this->assertSame(2, $payloads->findClaimByName('jti')->getValue());
-    }
-
+    // TODO: move test to refresh token form
     public function testRenewJwtAuthenticationToken() {
         $userIP = '192.168.0.1';
         $this->mockRequest($userIP);
@@ -83,14 +61,6 @@ class ComponentTest extends TestCase {
         $this->assertSame($session->id, $payloads->findClaimByName('jti')->getValue(), 'session has not changed');
     }
 
-    public function testParseToken() {
-        $this->mockRequest();
-        $account = new Account(['id' => 1]);
-        $token = $this->component->createJwtAuthenticationToken($account);
-        $jwt = $this->component->serializeToken($token);
-        $this->component->parseToken($jwt);
-    }
-
     public function testGetActiveSession() {
         /** @var Account $account */
         $account = $this->tester->grabFixture('accounts', 'admin');
@@ -172,7 +142,7 @@ class ComponentTest extends TestCase {
 
     private function getComponentConfig() {
         return [
-            'identityClass' => Identity::class,
+            'identityClass' => IdentityFactory::class,
             'enableSession' => false,
             'loginUrl' => null,
             'secret' => 'secret',
diff --git a/api/tests/unit/components/User/JwtAuthenticationResultTest.php b/api/tests/unit/components/User/JwtAuthenticationResultTest.php
deleted file mode 100644
index 29c636d..0000000
--- a/api/tests/unit/components/User/JwtAuthenticationResultTest.php
+++ /dev/null
@@ -1,63 +0,0 @@
-<?php
-namespace api\tests\unit\components\User;
-
-use api\components\User\AuthenticationResult;
-use api\tests\unit\TestCase;
-use common\models\Account;
-use common\models\AccountSession;
-use Emarref\Jwt\Algorithm\Hs256;
-use Emarref\Jwt\Claim\Expiration;
-use Emarref\Jwt\Encryption\Factory as EncryptionFactory;
-use Emarref\Jwt\Jwt;
-use Emarref\Jwt\Token;
-
-class JwtAuthenticationResultTest extends TestCase {
-
-    public function testGetAccount() {
-        $account = new Account();
-        $account->id = 123;
-        $model = new AuthenticationResult($account, '', null);
-        $this->assertSame($account, $model->getAccount());
-    }
-
-    public function testGetJwt() {
-        $model = new AuthenticationResult(new Account(), 'mocked jwt', null);
-        $this->assertSame('mocked jwt', $model->getJwt());
-    }
-
-    public function testGetSession() {
-        $model = new AuthenticationResult(new Account(), '', null);
-        $this->assertNull($model->getSession());
-
-        $session = new AccountSession();
-        $session->id = 321;
-        $model = new AuthenticationResult(new Account(), '', $session);
-        $this->assertSame($session, $model->getSession());
-    }
-
-    public function testGetAsResponse() {
-        $jwtToken = $this->createJwtToken(time() + 3600);
-        $model = new AuthenticationResult(new Account(), $jwtToken, null);
-        $result = $model->getAsResponse();
-        $this->assertSame($jwtToken, $result['access_token']);
-        $this->assertSame(3600, $result['expires_in']);
-
-        /** @noinspection SummerTimeUnsafeTimeManipulationInspection */
-        $jwtToken = $this->createJwtToken(time() + 86400);
-        $session = new AccountSession();
-        $session->refresh_token = 'refresh token';
-        $model = new AuthenticationResult(new Account(), $jwtToken, $session);
-        $result = $model->getAsResponse();
-        $this->assertSame($jwtToken, $result['access_token']);
-        $this->assertSame('refresh token', $result['refresh_token']);
-        $this->assertSame(86400, $result['expires_in']);
-    }
-
-    private function createJwtToken(int $expires): string {
-        $token = new Token();
-        $token->addClaim(new Expiration($expires));
-
-        return (new Jwt())->serialize($token, EncryptionFactory::create(new Hs256('123')));
-    }
-
-}
diff --git a/api/tests/unit/models/authentication/AuthenticationResultTest.php b/api/tests/unit/models/authentication/AuthenticationResultTest.php
new file mode 100644
index 0000000..0945b98
--- /dev/null
+++ b/api/tests/unit/models/authentication/AuthenticationResultTest.php
@@ -0,0 +1,40 @@
+<?php
+declare(strict_types=1);
+
+namespace api\tests\unit\models\authentication;
+
+use api\models\authentication\AuthenticationResult;
+use api\tests\unit\TestCase;
+use Lcobucci\JWT\Token;
+use Yii;
+
+class AuthenticationResultTest extends TestCase {
+
+    public function testGetters() {
+        $token = new Token();
+        $model = new AuthenticationResult($token);
+        $this->assertSame($token, $model->getToken());
+        $this->assertNull($model->getRefreshToken());
+
+        $model = new AuthenticationResult($token, 'refresh_token');
+        $this->assertSame('refresh_token', $model->getRefreshToken());
+    }
+
+    public function testGetAsResponse() {
+        $token = Yii::$app->tokens->create();
+        $jwt = (string)$token;
+
+        $model = new AuthenticationResult($token);
+        $result = $model->formatAsOAuth2Response();
+        $this->assertSame($jwt, $result['access_token']);
+        $this->assertEqualsWithDelta(3600, $result['expires_in'], 1);
+        $this->assertArrayNotHasKey('refresh_token', $result);
+
+        $model = new AuthenticationResult($token, 'refresh_token');
+        $result = $model->formatAsOAuth2Response();
+        $this->assertSame($jwt, $result['access_token']);
+        $this->assertEqualsWithDelta(3600, $result['expires_in'], 1);
+        $this->assertSame('refresh_token', $result['refresh_token']);
+    }
+
+}
diff --git a/api/tests/unit/models/authentication/ConfirmEmailFormTest.php b/api/tests/unit/models/authentication/ConfirmEmailFormTest.php
index 8b38e17..ef7971c 100644
--- a/api/tests/unit/models/authentication/ConfirmEmailFormTest.php
+++ b/api/tests/unit/models/authentication/ConfirmEmailFormTest.php
@@ -1,11 +1,11 @@
 <?php
+declare(strict_types=1);
+
 namespace api\tests\_support\models\authentication;
 
-use api\components\User\AuthenticationResult;
 use api\models\authentication\ConfirmEmailForm;
 use api\tests\unit\TestCase;
 use common\models\Account;
-use common\models\AccountSession;
 use common\models\EmailActivation;
 use common\tests\fixtures\EmailActivationFixture;
 
@@ -21,8 +21,8 @@ class ConfirmEmailFormTest extends TestCase {
         $fixture = $this->tester->grabFixture('emailActivations', 'freshRegistrationConfirmation');
         $model = $this->createModel($fixture['key']);
         $result = $model->confirm();
-        $this->assertInstanceOf(AuthenticationResult::class, $result);
-        $this->assertInstanceOf(AccountSession::class, $result->getSession(), 'session was generated');
+        $this->assertNotNull($result);
+        $this->assertNotNull($result->getRefreshToken(), 'session was generated');
         $activationExists = EmailActivation::find()->andWhere(['key' => $fixture['key']])->exists();
         $this->assertFalse($activationExists, 'email activation key is not exist');
         /** @var Account $account */
diff --git a/api/tests/unit/models/authentication/LoginFormTest.php b/api/tests/unit/models/authentication/LoginFormTest.php
index 5f4675f..35e7615 100644
--- a/api/tests/unit/models/authentication/LoginFormTest.php
+++ b/api/tests/unit/models/authentication/LoginFormTest.php
@@ -1,7 +1,8 @@
 <?php
+declare(strict_types=1);
+
 namespace api\tests\_support\models\authentication;
 
-use api\components\User\AuthenticationResult;
 use api\models\authentication\LoginForm;
 use api\tests\unit\TestCase;
 use Codeception\Specify;
@@ -135,7 +136,7 @@ class LoginFormTest extends TestCase {
                 'status' => Account::STATUS_ACTIVE,
             ]),
         ]);
-        $this->assertInstanceOf(AuthenticationResult::class, $model->login(), 'model should login user');
+        $this->assertNotNull($model->login(), 'model should login user');
         $this->assertEmpty($model->getErrors(), 'error message should not be set');
     }
 
@@ -144,7 +145,7 @@ class LoginFormTest extends TestCase {
             'login' => $this->tester->grabFixture('accounts', 'user-with-old-password-type')['username'],
             'password' => '12345678',
         ]);
-        $this->assertInstanceOf(AuthenticationResult::class, $model->login());
+        $this->assertNotNull($model->login());
         $this->assertEmpty($model->getErrors());
         $this->assertSame(
             Account::PASS_HASH_STRATEGY_YII2,
diff --git a/api/tests/unit/models/authentication/LogoutFormTest.php b/api/tests/unit/models/authentication/LogoutFormTest.php
index b13124d..e5426f9 100644
--- a/api/tests/unit/models/authentication/LogoutFormTest.php
+++ b/api/tests/unit/models/authentication/LogoutFormTest.php
@@ -2,7 +2,7 @@
 namespace api\tests\_support\models\authentication;
 
 use api\components\User\Component;
-use api\components\User\Identity;
+use api\components\User\IdentityFactory;
 use api\models\authentication\LogoutForm;
 use api\tests\unit\TestCase;
 use Codeception\Specify;
@@ -59,7 +59,7 @@ class LogoutFormTest extends TestCase {
 
     private function getComponentArgs() {
         return [
-            'identityClass' => Identity::class,
+            'identityClass' => IdentityFactory::class,
             'enableSession' => false,
             'loginUrl' => null,
             'secret' => 'secret',
diff --git a/api/tests/unit/models/authentication/RecoverPasswordFormTest.php b/api/tests/unit/models/authentication/RecoverPasswordFormTest.php
index c7d6da5..b3d19d9 100644
--- a/api/tests/unit/models/authentication/RecoverPasswordFormTest.php
+++ b/api/tests/unit/models/authentication/RecoverPasswordFormTest.php
@@ -1,7 +1,8 @@
 <?php
+declare(strict_types=1);
+
 namespace api\tests\_support\models\authentication;
 
-use api\components\User\AuthenticationResult;
 use api\models\authentication\RecoverPasswordForm;
 use api\tests\unit\TestCase;
 use common\models\Account;
@@ -24,8 +25,8 @@ class RecoverPasswordFormTest extends TestCase {
             'newRePassword' => '12345678',
         ]);
         $result = $model->recoverPassword();
-        $this->assertInstanceOf(AuthenticationResult::class, $result);
-        $this->assertNull($result->getSession(), 'session was not generated');
+        $this->assertNotNull($result);
+        $this->assertNull($result->getRefreshToken(), 'session was not generated');
         $this->assertFalse(EmailActivation::find()->andWhere(['key' => $fixture['key']])->exists());
         /** @var Account $account */
         $account = Account::findOne($fixture['account_id']);
diff --git a/api/tests/unit/models/authentication/RefreshTokenFormTest.php b/api/tests/unit/models/authentication/RefreshTokenFormTest.php
index fada46e..9a89703 100644
--- a/api/tests/unit/models/authentication/RefreshTokenFormTest.php
+++ b/api/tests/unit/models/authentication/RefreshTokenFormTest.php
@@ -1,7 +1,8 @@
 <?php
+declare(strict_types=1);
+
 namespace codeception\api\unit\models\authentication;
 
-use api\components\User\AuthenticationResult;
 use api\models\authentication\RefreshTokenForm;
 use api\tests\unit\TestCase;
 use Codeception\Specify;
@@ -44,7 +45,7 @@ class RefreshTokenFormTest extends TestCase {
     public function testRenew() {
         $model = new RefreshTokenForm();
         $model->refresh_token = $this->tester->grabFixture('sessions', 'admin')['refresh_token'];
-        $this->assertInstanceOf(AuthenticationResult::class, $model->renew());
+        $this->assertNotNull($model->renew());
     }
 
 }
diff --git a/api/tests/unit/modules/accounts/models/ChangePasswordFormTest.php b/api/tests/unit/modules/accounts/models/ChangePasswordFormTest.php
index f1fefca..803bea3 100644
--- a/api/tests/unit/modules/accounts/models/ChangePasswordFormTest.php
+++ b/api/tests/unit/modules/accounts/models/ChangePasswordFormTest.php
@@ -2,7 +2,7 @@
 namespace api\tests\unit\modules\accounts\models;
 
 use api\components\User\Component;
-use api\components\User\Identity;
+use api\components\User\IdentityFactory;
 use api\modules\accounts\models\ChangePasswordForm;
 use api\tests\unit\TestCase;
 use common\components\UserPass;
@@ -57,7 +57,7 @@ class ChangePasswordFormTest extends TestCase {
 
     public function testPerformAction() {
         $component = mock(Component::class . '[terminateSessions]', [[
-            'identityClass' => Identity::class,
+            'identityClass' => IdentityFactory::class,
             'enableSession' => false,
             'loginUrl' => null,
             'secret' => 'secret',
@@ -119,7 +119,7 @@ class ChangePasswordFormTest extends TestCase {
 
         /** @var Component|\Mockery\MockInterface $component */
         $component = mock(Component::class . '[terminateSessions]', [[
-            'identityClass' => Identity::class,
+            'identityClass' => IdentityFactory::class,
             'enableSession' => false,
             'loginUrl' => null,
             'secret' => 'secret',
diff --git a/api/tests/unit/modules/accounts/models/EnableTwoFactorAuthFormTest.php b/api/tests/unit/modules/accounts/models/EnableTwoFactorAuthFormTest.php
index c70c98f..09647a4 100644
--- a/api/tests/unit/modules/accounts/models/EnableTwoFactorAuthFormTest.php
+++ b/api/tests/unit/modules/accounts/models/EnableTwoFactorAuthFormTest.php
@@ -2,7 +2,7 @@
 namespace api\tests\unit\modules\accounts\models;
 
 use api\components\User\Component;
-use api\components\User\Identity;
+use api\components\User\IdentityFactory;
 use api\modules\accounts\models\EnableTwoFactorAuthForm;
 use api\tests\unit\TestCase;
 use common\helpers\Error as E;
@@ -20,7 +20,7 @@ class EnableTwoFactorAuthFormTest extends TestCase {
 
         /** @var Component|\Mockery\MockInterface $component */
         $component = mock(Component::class . '[terminateSessions]', [[
-            'identityClass' => Identity::class,
+            'identityClass' => IdentityFactory::class,
             'enableSession' => false,
             'loginUrl' => null,
             'secret' => 'secret',
diff --git a/autocompletion.php b/autocompletion.php
index ba53026..fa14d25 100644
--- a/autocompletion.php
+++ b/autocompletion.php
@@ -25,6 +25,7 @@ class Yii extends \yii\BaseYii {
  * @property \api\components\OAuth2\Component $oauth
  * @property \common\components\StatsD        $statsd
  * @property \yii\queue\Queue                 $queue
+ * @property \api\components\Tokens\Component $tokens
  */
 abstract class BaseApplication extends yii\base\Application {
 }
diff --git a/common/config/config-test.php b/common/config/config-test.php
index 2cffd5e..ecea105 100644
--- a/common/config/config-test.php
+++ b/common/config/config-test.php
@@ -6,6 +6,9 @@ return [
         'fromEmail' => 'ely@ely.by',
     ],
     'components' => [
+        'cache' => [
+            'class' => \yii\caching\FileCache::class,
+        ],
         'security' => [
             // It's allows us to increase tests speed by decreasing password hashing algorithm complexity
             'passwordHashCost' => 4,
diff --git a/composer.json b/composer.json
index 864979b..9a0d0e1 100644
--- a/composer.json
+++ b/composer.json
@@ -19,6 +19,7 @@
         "emarref/jwt": "~1.0.3",
         "goaop/framework": "^2.2.0",
         "guzzlehttp/guzzle": "^6.0.0",
+        "lcobucci/jwt": "^3.3",
         "league/oauth2-server": "^4.1",
         "mito/yii2-sentry": "^1.0",
         "paragonie/constant_time_encoding": "^2.0",
diff --git a/composer.lock b/composer.lock
index 7a3d699..6271d21 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "80ccf8b828493911307a9daa95021dfc",
+    "content-hash": "2dfa204a51a82cd7c7d6a5b7d1ccbc0c",
     "packages": [
         {
             "name": "bacon/bacon-qr-code",
@@ -54,16 +54,16 @@
         },
         {
             "name": "beberlei/assert",
-            "version": "v3.2.0",
+            "version": "v3.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/beberlei/assert.git",
-                "reference": "fd82f4c8592c8128dd74481034c31da71ebafc56"
+                "reference": "ce139b6bf8f07fb8389d2c8e15b98dc24fdd93c7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/beberlei/assert/zipball/fd82f4c8592c8128dd74481034c31da71ebafc56",
-                "reference": "fd82f4c8592c8128dd74481034c31da71ebafc56",
+                "url": "https://api.github.com/repos/beberlei/assert/zipball/ce139b6bf8f07fb8389d2c8e15b98dc24fdd93c7",
+                "reference": "ce139b6bf8f07fb8389d2c8e15b98dc24fdd93c7",
                 "shasum": ""
             },
             "require": {
@@ -72,7 +72,7 @@
             "require-dev": {
                 "friendsofphp/php-cs-fixer": "*",
                 "phpstan/phpstan-shim": "*",
-                "phpunit/phpunit": "*"
+                "phpunit/phpunit": ">=6.0.0 <8"
             },
             "type": "library",
             "autoload": {
@@ -90,13 +90,13 @@
             "authors": [
                 {
                     "name": "Benjamin Eberlei",
-                    "email": "kontakt@beberlei.de",
-                    "role": "Lead Developer"
+                    "role": "Lead Developer",
+                    "email": "kontakt@beberlei.de"
                 },
                 {
                     "name": "Richard Quadling",
-                    "email": "rquadling@gmail.com",
-                    "role": "Collaborator"
+                    "role": "Collaborator",
+                    "email": "rquadling@gmail.com"
                 }
             ],
             "description": "Thin assertion library for input validation in business models.",
@@ -105,7 +105,7 @@
                 "assertion",
                 "validation"
             ],
-            "time": "2018-12-24T15:25:25+00:00"
+            "time": "2019-05-28T15:18:28+00:00"
         },
         {
             "name": "bower-asset/inputmask",
@@ -151,7 +151,7 @@
             "version": "v1.3.2",
             "source": {
                 "type": "git",
-                "url": "git@github.com:bestiejs/punycode.js.git",
+                "url": "https://github.com/bestiejs/punycode.js.git",
                 "reference": "38c8d3131a82567bfef18da09f7f4db68c84f8a3"
             },
             "dist": {
@@ -1146,6 +1146,61 @@
             ],
             "time": "2013-01-29T21:29:14+00:00"
         },
+        {
+            "name": "lcobucci/jwt",
+            "version": "3.3.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/lcobucci/jwt.git",
+                "reference": "a11ec5f4b4d75d1fcd04e133dede4c317aac9e18"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/lcobucci/jwt/zipball/a11ec5f4b4d75d1fcd04e133dede4c317aac9e18",
+                "reference": "a11ec5f4b4d75d1fcd04e133dede4c317aac9e18",
+                "shasum": ""
+            },
+            "require": {
+                "ext-mbstring": "*",
+                "ext-openssl": "*",
+                "php": "^5.6 || ^7.0"
+            },
+            "require-dev": {
+                "mikey179/vfsstream": "~1.5",
+                "phpmd/phpmd": "~2.2",
+                "phpunit/php-invoker": "~1.1",
+                "phpunit/phpunit": "^5.7 || ^7.3",
+                "squizlabs/php_codesniffer": "~2.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.1-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Lcobucci\\JWT\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Luís Otávio Cobucci Oblonczyk",
+                    "email": "lcobucci@gmail.com",
+                    "role": "Developer"
+                }
+            ],
+            "description": "A simple library to work with JSON Web Token and JSON Web Signature",
+            "keywords": [
+                "JWS",
+                "jwt"
+            ],
+            "time": "2019-05-24T18:30:49+00:00"
+        },
         {
             "name": "league/event",
             "version": "2.2.0",
diff --git a/data/certs/private.key b/data/certs/private.key
deleted file mode 100644
index 5423a00..0000000
--- a/data/certs/private.key
+++ /dev/null
@@ -1,28 +0,0 @@
------BEGIN PRIVATE KEY-----
-MIIEwAIBADANBgkqhkiG9w0BAQEFAASCBKowggSmAgEAAoIBAQDbTqmRpLg3XjDH
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-HMsBjKAmKFNPebTWFcAlXXaeCPU=
------END PRIVATE KEY-----
diff --git a/data/certs/private.pem b/data/certs/private.pem
new file mode 100644
index 0000000..cdf213f
--- /dev/null
+++ b/data/certs/private.pem
@@ -0,0 +1,5 @@
+-----BEGIN EC PRIVATE KEY-----
+MHcCAQEEIJ5ERywpRs5Rxn3JsSBhQTkzyYShmbKk1ziwif6yeBRooAoGCCqGSM49
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+ocFTBcyZmmF7iM7nhGicfiDfJKIyV8w+BA==
+-----END EC PRIVATE KEY-----
diff --git a/data/certs/public.crt b/data/certs/public.crt
deleted file mode 100644
index 8659eb4..0000000
--- a/data/certs/public.crt
+++ /dev/null
@@ -1,16 +0,0 @@
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
diff --git a/data/certs/public.pem b/data/certs/public.pem
new file mode 100644
index 0000000..aeb8f26
--- /dev/null
+++ b/data/certs/public.pem
@@ -0,0 +1,4 @@
+-----BEGIN PUBLIC KEY-----
+MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEv6ENZA59mzFvoDKTX3BI3Nx6di+x
+WnsOAo9+zx0hnMnfzdhOS930ocFTBcyZmmF7iM7nhGicfiDfJKIyV8w+BA==
+-----END PUBLIC KEY-----