Add support for encryption (RFC7516)

[lggomez]

Migrated from dgrijalva/jwt-go#346:

maxshifrin commented on Jul 30, 2019

It would be great if this library could also support payload encryption (https://tools.ietf.org/html/rfc7516)

It would greatly help in case sensitive information needs to be stored inside the JWT token, and offload the need to encrypt it in every application separately

[lggomez]

dgrijalva commented on Jul 30, 2019

I've looked into it. JWE is a sibling standard to JWT. I'm open to supporting it, but it's considerably more complex, so it'll require some work and an extended API. At the moment, I'm trying to wrap up the next major version. It would be best to take a look at JWE again after that ships.

[ptman]

JWE support seems to still be missing. What other libraries have people had good success with?