librhonabwy1.1 1.1.8-1 (ppc64el binary) in ubuntu kinetic

 Rhonabwy - JWK, JWKS, JWS, JWE and JWT library
 .
  - Create, modify, parse, import or export JSON Web Keys (JWK) and JSON Web
    Keys Set (JWKS)
  - Create, modify, parse, validate or serialize JSON Web Signatures (JWS)
  - Create, modify, parse, validate or serialize JSON Web Encryption (JWE)
    limited and experimental!
  - Create, modify, parse, validate or serialize JSON Web Token (JWT)
 .
 JWT Relies on JWS and JWE functions, so it supports the same functionnalities
 as the other 2. JWT functionnalities also support nesting serilization
 (JWE nested in a JWS or the opposite).