This repository contains a sample backend code that demonstrates how to generate a Virgil JWT using the PHP SDK

Do not use this authentication in production. Requests to /virgil-jwt endpoint must be allowed for authenticated users. Use your application authorization strategy.

• PHP7.2 / PHP7.3
• vscf_foundation_php, vscp_pythia_php, vsce_phe_php extensions

$ composer install

Note that required Virgil extensions installs automatically as post install composer script (see composer.json)

Сrypto extensions installation...
----------
Checking input... [OK]
Checking PHP version... [OK]
Checking OS... [OK]
Checking package version... [OK]
Checking PHP extensions directory... [OK]
Checking additional .ini files directory... [OK]
----------
SYSTEM CONFIGURATION:
Crypto version: 
OS (short): Linux
PHP version (short): 7.2
PHP version (full):
PHP 7.2.26 (cli) (built: Dec 22 2019 06:01:52) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
    with Xdebug v2.6.1, Copyright (c) 2002-2018, by Derick Rethans
Extensions directory: /usr/lib/php7/modules
Additional .ini files directory: /etc/php7/conf.d /etc/php7/conf.d
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Copying vendor/virgil/crypto-wrapper/_extensions/bin/lin/php7.2/vsce_phe_php7.2_v0.15.2.so to the /usr/lib/php7/modules/... [OK]
Copying vendor/virgil/crypto-wrapper/_extensions/bin/lin/php7.2/vscf_foundation_php7.2_v0.15.2.so to the /usr/lib/php7/modules/... [OK]
Copying vendor/virgil/crypto-wrapper/_extensions/bin/lin/php7.2/vscp_pythia_php7.2_v0.15.2.so to the /usr/lib/php7/modules/... [OK]
Copying vendor/virgil/crypto-wrapper/_extensions/bin/lin/php7.2/virgil_crypto.ini file to the /etc/php7/conf.d/virgil_crypto.ini... [OK]
Copying vendor/virgil/crypto-wrapper/_extensions/bin/lin/php7.2/virgil_crypto.ini file to the /etc/php7/conf.d/virgil_crypto.ini... [OK]
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STATUS: Restart your webserver (or php-service if available)

Ensure that vscf_foundation_php, vscp_pythia_php, vsce_phe_php extensions is present in command output after composer install

php -m 

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To generate a JWT the following values are required:

• create a .env file from the .env.example and fill it with your account credentials

Make sure that ./app/public/ is a public-accessible directory with a index.php file. Also, you need to make a front-controller and rewrite all requests to the index.php file.

More info on how to configure and run a Apache/nginx/hhvm server can be found here.

This endpoint is an example of users authentication. It takes user identity and responds with unique token.

POST https://<server_name>/authenticate HTTP/1.1
Content-type: application/json;
{
    "identity": "string"
}
Response:
{
    "authToken": "string"
}

This endpoint checks whether a user is authorized by an authorization header. It takes user's authToken, finds related user identity and generates a virgilToken (which is JSON Web Token) with this identity in a payload. Use this token to make authorized api calls to Virgil Cloud.

GET https://<server_name>/virgil-jwt HTTP/1.1
Content-type: application/json;
Authorization: Bearer <authToken>
Response:
{
    "virgilToken": "string"
}

To generate JWT, you need to use the JwtGenerator class from the SDK.

$privateKeyStr = $_ENV['APP_KEY'];
$apiKeyData = base64_decode($privateKeyStr);
$crypto = new VirgilCrypto();
$privateKey = $crypto->importPrivateKey($apiKeyData);
$appId = $_ENV['APP_ID'];
$apiKeyId = $_ENV['APP_KEY_ID'];
$ttl = 3600;
$jwtGenerator = new SDKJwtGenerator($privateKey->getPrivateKey(), $apiKeyId, $crypto, $appId, $ttl);
$token = $jwtGenerator->generateToken($identity);
$jwt = $token->__toString();

Then you need to provide an HTTP endpoint which will return the JWT with the user's identity as a JSON.

For more details take a look at the JWTGenerator.php file.

This library is released under the 3-clause BSD License.

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You can find us on Twitter or send us email support@VirgilSecurity.com.

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