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https://github.com/paragonie/paseto

Platform-Agnostic Security Tokens
https://github.com/paragonie/paseto

paseto paseto-tokens php

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Platform-Agnostic Security Tokens

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# PASETO: Platform-Agnostic Security Tokens



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Paseto (pɔːsɛtəʊ, paw-set-oh) is everything you love about JOSE (JWT, JWE, JWS) without any of the

[many design deficits that plague the JOSE standards](https://paragonie.com/blog/2017/03/jwt-json-web-tokens-is-bad-standard-that-everyone-should-avoid).



This library is a reference implementation of PASETO in the PHP language.

Please refer to the [**PASETO Specification**](https://github.com/paseto-standard/paseto-spec)

for design considerations.



## How to Use this Library



See [the documentation](https://github.com/paragonie/paseto/tree/master/docs).



The [PASETO specification](https://github.com/paseto-standard/paseto-spec) may also be useful

for understanding why things are designed the way they are.



### PASETO Extensions



#### PASERK



For key wrapping, serialization, and canonical identification, please see the

[PHP implementation of PASERK](https://github.com/paragonie/paserk-php).



If you're not sure what that means, please refer to the

[PASERK specification](https://github.com/paseto-standard/paserk).



Since PASERK is a PASETO extension, PASERK support is not automatically included

with PASETO, but PASETO is bundled with PASERK.



### Requirements



#### PHP PASETO Library Version 3



* Requires PHP 8.1 or newer.

* For v3 tokens, the GMP and OpenSSL extensions are required.

* For v4 tokens, the Sodium extension is strongly recommended (but this library will use

  [sodium_compat](https://github.com/paragonie/sodium_compat) if it's not).

* PASETO Protocol versions: `v3`, `v4`



#### PHP PASETO Library Version 2



* Requires PHP 7.1 or newer.

* For v3 tokens, the GMP and OpenSSL extensions are required.

* For v4 tokens, the Sodium extension is strongly recommended (but this library will use

  [sodium_compat](https://github.com/paragonie/sodium_compat) if it's not).

* PASETO Protocol versions: `v1`, `v2`, `v3`, `v4`



#### PHP PASETO Library Version 1



* Requires PHP 7.0 or newer.

* For v1 tokens, the OpenSSL extension is required.

* For v2 tokens, the Sodium extension is strongly recommended (but this library will use

  [sodium_compat](https://github.com/paragonie/sodium_compat) if it's not).

* PASETO Protocol versions: `v1`, `v2`



## Support Contracts



If your company uses this library in their products or services, you may be

interested in [purchasing a support contract from Paragon Initiative Enterprises](https://paragonie.com/enterprise).