anchor.diff:  == Introduction
   
   Buddy *sign* module is dedicated to provide a high level abstraction
  -for web ready message signing.
  +for web ready message signing and encryption.
   
   It can be used for several purposes:
   
  
positive.code: ._on project.clj_
  [source,clojure]
  ----
  [buddy/buddy-sign "0.4.2"]
  ----
  
  === Gradle
  
  
negative.code: .Example of signing a string using _es256_ (eliptic curve dsa) algorithm.
  [source, clojure]
  ----
  (require '[buddy.core.keys :as keys])
  
  ;; Create keys instances
  