class IOP::DigestComputer
Filter class to compute digest of the data being passed through. It can be used with digest computing classes from the standard Ruby Digest::
and OpenSSL::Digest::
modules.
### Use case: generate 1024 bytes of random data and compute and print MD5 hash sum of it.
require 'iop/digest' require 'iop/securerandom' ( IOP::SecureRandomGenerator.new(1024) | ( d = IOP::DigestComputer.new(Digest::MD5.new)) ).process! puts d.digest.hexdigest
@since 0.1
Attributes
digest[R]
Returns digest object passed to constructor.
Public Class Methods
new(digest)
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Creates class instance.
@param digest computer instance to be fed with data
# File lib/iop/digest.rb, line 33 def initialize(digest) @digest = digest end
Public Instance Methods
process(data = nil)
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Calls superclass method
IOP::Sink#process
# File lib/iop/digest.rb, line 37 def process(data = nil) digest.update(data) unless data.nil? super end