You can use java.security.MessageDigest. For example:

(defn create-hash
  [data-barray]
  (.digest (java.security.MessageDigest/getInstance "SHA1") data-barray))

It takes and returns a byte array, but converting from/to a string is 
fairly straight-forward:

(->> "Hello, World!"
     .getBytes
     create-hash
     java.math.BigInteger.
     (format "%x")
     println)

On Saturday, March 1, 2014 11:26:29 AM UTC-5, action wrote:

> do like this:
> (ns clojurewerkz.support.hashing
>   (:require [clojurewerkz.support.internal :as i])
>   (:import [com.google.common.hash Hashing HashFunction HashCode]))
> but:
> FileNotFoundException Could not locate clojurewerkz/support__init.class or 
> cloju
> rewerkz/support.clj on classpath:   clojure.lang.RT.load (RT.java:443)
> how to set the dependencies, or other solution?
>
> Think you
>
>
>

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