View file File name : README.md Content :[](https://travis-ci.org/firebase/php-jwt) [](https://packagist.org/packages/firebase/php-jwt) [](https://packagist.org/packages/firebase/php-jwt) [](https://packagist.org/packages/firebase/php-jwt) PHP-JWT ======= A simple library to encode and decode JSON Web Tokens (JWT) in PHP, conforming to [RFC 7519](https://tools.ietf.org/html/rfc7519). Installation ------------ Use composer to manage your dependencies and download PHP-JWT: ```bash composer require firebase/php-jwt ``` Optionally, install the `paragonie/sodium_compat` package from composer if your php is < 7.2 or does not have libsodium installed: ```bash composer require paragonie/sodium_compat ``` Example ------- ```php use Firebase\JWT\JWT; use Firebase\JWT\Key; $key = "example_key"; $payload = array( "iss" => "http://example.org", "aud" => "http://example.com", "iat" => 1356999524, "nbf" => 1357000000 ); /** * IMPORTANT: * You must specify supported algorithms for your application. See * https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40 * for a list of spec-compliant algorithms. */ $jwt = JWT::encode($payload, $key, 'HS256'); $decoded = JWT::decode($jwt, new Key($key, 'HS256')); print_r($decoded); /* NOTE: This will now be an object instead of an associative array. To get an associative array, you will need to cast it as such: */ $decoded_array = (array) $decoded; /** * You can add a leeway to account for when there is a clock skew times between * the signing and verifying servers. It is recommended that this leeway should * not be bigger than a few minutes. * * Source: http://self-issued.info/docs/draft-ietf-oauth-json-web-token.html#nbfDef */ JWT::$leeway = 60; // $leeway in seconds $decoded = JWT::decode($jwt, new Key($key, 'HS256')); ``` Example with RS256 (openssl) ---------------------------- ```php use Firebase\JWT\JWT; use Firebase\JWT\Key; $privateKey = <<<EOD -----BEGIN RSA PRIVATE KEY----- MIICXAIBAAKBgQC8kGa1pSjbSYZVebtTRBLxBz5H4i2p/llLCrEeQhta5kaQu/Rn vuER4W8oDH3+3iuIYW4VQAzyqFpwuzjkDI+17t5t0tyazyZ8JXw+KgXTxldMPEL9 5+qVhgXvwtihXC1c5oGbRlEDvDF6Sa53rcFVsYJ4ehde/zUxo6UvS7UrBQIDAQAB AoGAb/MXV46XxCFRxNuB8LyAtmLDgi/xRnTAlMHjSACddwkyKem8//8eZtw9fzxz bWZ/1/doQOuHBGYZU8aDzzj59FZ78dyzNFoF91hbvZKkg+6wGyd/LrGVEB+Xre0J Nil0GReM2AHDNZUYRv+HYJPIOrB0CRczLQsgFJ8K6aAD6F0CQQDzbpjYdx10qgK1 cP59UHiHjPZYC0loEsk7s+hUmT3QHerAQJMZWC11Qrn2N+ybwwNblDKv+s5qgMQ5 5tNoQ9IfAkEAxkyffU6ythpg/H0Ixe1I2rd0GbF05biIzO/i77Det3n4YsJVlDck ZkcvY3SK2iRIL4c9yY6hlIhs+K9wXTtGWwJBAO9Dskl48mO7woPR9uD22jDpNSwe k90OMepTjzSvlhjbfuPN1IdhqvSJTDychRwn1kIJ7LQZgQ8fVz9OCFZ/6qMCQGOb qaGwHmUK6xzpUbbacnYrIM6nLSkXgOAwv7XXCojvY614ILTK3iXiLBOxPu5Eu13k eUz9sHyD6vkgZzjtxXECQAkp4Xerf5TGfQXGXhxIX52yH+N2LtujCdkQZjXAsGdm B2zNzvrlgRmgBrklMTrMYgm1NPcW+bRLGcwgW2PTvNM= -----END RSA PRIVATE KEY----- EOD; $publicKey = <<<EOD -----BEGIN PUBLIC KEY----- MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8kGa1pSjbSYZVebtTRBLxBz5H 4i2p/llLCrEeQhta5kaQu/RnvuER4W8oDH3+3iuIYW4VQAzyqFpwuzjkDI+17t5t 0tyazyZ8JXw+KgXTxldMPEL95+qVhgXvwtihXC1c5oGbRlEDvDF6Sa53rcFVsYJ4 ehde/zUxo6UvS7UrBQIDAQAB -----END PUBLIC KEY----- EOD; $payload = array( "iss" => "example.org", "aud" => "example.com", "iat" => 1356999524, "nbf" => 1357000000 ); $jwt = JWT::encode($payload, $privateKey, 'RS256'); echo "Encode:\n" . print_r($jwt, true) . "\n"; $decoded = JWT::decode($jwt, new Key($publicKey, 'RS256')); /* NOTE: This will now be an object instead of an associative array. To get an associative array, you will need to cast it as such: */ $decoded_array = (array) $decoded; echo "Decode:\n" . print_r($decoded_array, true) . "\n"; ``` Example with a passphrase ------------------------- ```php use Firebase\JWT\JWT; use Firebase\JWT\Key; // Your passphrase $passphrase = '[YOUR_PASSPHRASE]'; // Your private key file with passphrase // Can be generated with "ssh-keygen -t rsa -m pem" $privateKeyFile = '/path/to/key-with-passphrase.pem'; // Create a private key of type "resource" $privateKey = openssl_pkey_get_private( file_get_contents($privateKeyFile), $passphrase ); $payload = array( "iss" => "example.org", "aud" => "example.com", "iat" => 1356999524, "nbf" => 1357000000 ); $jwt = JWT::encode($payload, $privateKey, 'RS256'); echo "Encode:\n" . print_r($jwt, true) . "\n"; // Get public key from the private key, or pull from from a file. $publicKey = openssl_pkey_get_details($privateKey)['key']; $decoded = JWT::decode($jwt, new Key($publicKey, 'RS256')); echo "Decode:\n" . print_r((array) $decoded, true) . "\n"; ``` Example with EdDSA (libsodium and Ed25519 signature) ---------------------------- ```php use Firebase\JWT\JWT; use Firebase\JWT\Key; // Public and private keys are expected to be Base64 encoded. The last // non-empty line is used so that keys can be generated with // sodium_crypto_sign_keypair(). The secret keys generated by other tools may // need to be adjusted to match the input expected by libsodium. $keyPair = sodium_crypto_sign_keypair(); $privateKey = base64_encode(sodium_crypto_sign_secretkey($keyPair)); $publicKey = base64_encode(sodium_crypto_sign_publickey($keyPair)); $payload = array( "iss" => "example.org", "aud" => "example.com", "iat" => 1356999524, "nbf" => 1357000000 ); $jwt = JWT::encode($payload, $privateKey, 'EdDSA'); echo "Encode:\n" . print_r($jwt, true) . "\n"; $decoded = JWT::decode($jwt, new Key($publicKey, 'EdDSA')); echo "Decode:\n" . print_r((array) $decoded, true) . "\n"; ```` Using JWKs ---------- ```php use Firebase\JWT\JWK; use Firebase\JWT\JWT; // Set of keys. The "keys" key is required. For example, the JSON response to // this endpoint: https://www.gstatic.com/iap/verify/public_key-jwk $jwks = ['keys' => []]; // JWK::parseKeySet($jwks) returns an associative array of **kid** to private // key. Pass this as the second parameter to JWT::decode. // NOTE: The deprecated $supportedAlgorithm must be supplied when parsing from JWK. JWT::decode($payload, JWK::parseKeySet($jwks), $supportedAlgorithm); ``` Changelog --------- #### 5.0.0 / 2017-06-26 - Support RS384 and RS512. See [#117](https://github.com/firebase/php-jwt/pull/117). Thanks [@joostfaassen](https://github.com/joostfaassen)! - Add an example for RS256 openssl. See [#125](https://github.com/firebase/php-jwt/pull/125). Thanks [@akeeman](https://github.com/akeeman)! - Detect invalid Base64 encoding in signature. See [#162](https://github.com/firebase/php-jwt/pull/162). Thanks [@psignoret](https://github.com/psignoret)! - Update `JWT::verify` to handle OpenSSL errors. See [#159](https://github.com/firebase/php-jwt/pull/159). Thanks [@bshaffer](https://github.com/bshaffer)! - Add `array` type hinting to `decode` method See [#101](https://github.com/firebase/php-jwt/pull/101). Thanks [@hywak](https://github.com/hywak)! - Add all JSON error types. See [#110](https://github.com/firebase/php-jwt/pull/110). Thanks [@gbalduzzi](https://github.com/gbalduzzi)! - Bugfix 'kid' not in given key list. See [#129](https://github.com/firebase/php-jwt/pull/129). Thanks [@stampycode](https://github.com/stampycode)! - Miscellaneous cleanup, documentation and test fixes. See [#107](https://github.com/firebase/php-jwt/pull/107), [#115](https://github.com/firebase/php-jwt/pull/115), [#160](https://github.com/firebase/php-jwt/pull/160), [#161](https://github.com/firebase/php-jwt/pull/161), and [#165](https://github.com/firebase/php-jwt/pull/165). Thanks [@akeeman](https://github.com/akeeman), [@chinedufn](https://github.com/chinedufn), and [@bshaffer](https://github.com/bshaffer)! #### 4.0.0 / 2016-07-17 - Add support for late static binding. See [#88](https://github.com/firebase/php-jwt/pull/88) for details. Thanks to [@chappy84](https://github.com/chappy84)! - Use static `$timestamp` instead of `time()` to improve unit testing. See [#93](https://github.com/firebase/php-jwt/pull/93) for details. Thanks to [@josephmcdermott](https://github.com/josephmcdermott)! - Fixes to exceptions classes. See [#81](https://github.com/firebase/php-jwt/pull/81) for details. Thanks to [@Maks3w](https://github.com/Maks3w)! - Fixes to PHPDoc. See [#76](https://github.com/firebase/php-jwt/pull/76) for details. Thanks to [@akeeman](https://github.com/akeeman)! #### 3.0.0 / 2015-07-22 - Minimum PHP version updated from `5.2.0` to `5.3.0`. - Add `\Firebase\JWT` namespace. See [#59](https://github.com/firebase/php-jwt/pull/59) for details. Thanks to [@Dashron](https://github.com/Dashron)! - Require a non-empty key to decode and verify a JWT. See [#60](https://github.com/firebase/php-jwt/pull/60) for details. Thanks to [@sjones608](https://github.com/sjones608)! - Cleaner documentation blocks in the code. See [#62](https://github.com/firebase/php-jwt/pull/62) for details. Thanks to [@johanderuijter](https://github.com/johanderuijter)! #### 2.2.0 / 2015-06-22 - Add support for adding custom, optional JWT headers to `JWT::encode()`. See [#53](https://github.com/firebase/php-jwt/pull/53/files) for details. Thanks to [@mcocaro](https://github.com/mcocaro)! #### 2.1.0 / 2015-05-20 - Add support for adding a leeway to `JWT:decode()` that accounts for clock skew between signing and verifying entities. Thanks to [@lcabral](https://github.com/lcabral)! - Add support for passing an object implementing the `ArrayAccess` interface for `$keys` argument in `JWT::decode()`. Thanks to [@aztech-dev](https://github.com/aztech-dev)! #### 2.0.0 / 2015-04-01 - **Note**: It is strongly recommended that you update to > v2.0.0 to address known security vulnerabilities in prior versions when both symmetric and asymmetric keys are used together. - Update signature for `JWT::decode(...)` to require an array of supported algorithms to use when verifying token signatures. Tests ----- Run the tests using phpunit: ```bash $ pear install PHPUnit $ phpunit --configuration phpunit.xml.dist PHPUnit 3.7.10 by Sebastian Bergmann. ..... Time: 0 seconds, Memory: 2.50Mb OK (5 tests, 5 assertions) ``` New Lines in private keys ----- If your private key contains `\n` characters, be sure to wrap it in double quotes `""` and not single quotes `''` in order to properly interpret the escaped characters. License ------- [3-Clause BSD](http://opensource.org/licenses/BSD-3-Clause).