Support for RS256 (RSA Signature with SHA-256)

[spyder]

Here are JWT libraries from https://github.com/cdbattags/lua-resty-jwt with some minor changes to work on LM. Create a use library with the same name for each attached file.

Code:

jwt = require "user.jwt"

jwt_token = jwt:sign(
  "my-secrect-key",
  {
    header={typ="JWT", alg="HS256"},
    payload={foo="bar"}
  }
)

log(jwt_token)

I get

User library hmac:85: Symbol not found: EVP_md5
stack traceback:
[C]: in function '__index'
User library hmac:85: in main chunk
[C]: in function 'require'
Library user-autoload:5: in main chunk

Tried to upgrade to the latest firmware, but that did not resolve the issue. I am using a LM3 Reactor v2.