anchor.diff:  | Tiger                | 192
   | Blake2b              | 512
   | Skein                | 256, 512, 1024, arbitrary size
  +| Whirlpool            | 512
  +| RIPEMD160            | 160
   |===============================================
   
   
  
positive.code: explanation about the differences with MAC
  link:http://crypto.stackexchange.com/a/5647[here].
  
  *buddy-core* comes with support for: 
  link:https://en.wikipedia.org/wiki/PKCS_1[rsassa-pss],
  link:https://en.wikipedia.org/wiki/PKCS_1[rsassa-pkcs] and 
  link:https://en.wikipedia.org/wiki/Elliptic_Curve_Digital_Signature_Algorithm[ecdsa].
  
  .Example signing string using rsassa-pss+sha256
  
negative.code: 
  NOTE: for decrypt, only change `:op` value to `:decrypt`
  
  You can call `crypto/initialize!` any times as you want, it simply reinitializes
  the engine.
  
  
  