anchor.diff:  = buddy-core - Cryptographic Api
   Andrey Antukh, <niwi@niwi.nz>
  -0.7.0
  +0.8.0
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  == Introduction
  
  Buddy *core* module is dedicated to cryptographic api.
  
negative.code: ----
  
  You can extend it for your own types using the
  *buddy.core.hash/IDigest* protocol:
  
  [source,clojure]
  ----
  (defprotocol Digest
    (-digest [data engine]))
  ----
  
  [NOTE]
  