hi

I need to generate a hash like

np = Digest::MD5.new
np << "hello"
require 'base64'
md5_np = "{MD5}" << Base64.b64encode(np.digest) # => 
"XUFAKrxLKna5cZ2REBfFkg==\n"

but it will generate hash from 'hello' word I need generate like random hash

how to do it ?