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−# This Source Code Form is subject to the terms of the Mozilla Public
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−# License, v. 2.0.  If a copy of the MPL was not distributed with this
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−# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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−#
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−# Copyright 1997 - July 2008 CWI, August 2008 - 2020 MonetDB B.V.
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−
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−require 'digest/md5'
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−require 'digest/sha1'
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−require 'digest/sha2'
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−
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−class Hasher
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−	# Constructor
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−	# method = "SHA1" or "MD5"
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−	# pwd = Password
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−	def initialize(method, pwd)
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−          if (method.upcase == "SHA1")
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−                  @hashfunc = Digest::SHA1.new
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−                  @hashname = method.upcase
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−          elsif (method.upcase == "SHA256")
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−            @hashfunc = Digest::SHA256.new
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−            @hashname = method.upcase
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−          elsif (method.upcase == "SHA384")
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−            @hashfunc = Digest::SHA384.new
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−            @hashname = method.upcase
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−          elsif (method.upcase == "SHA512")
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−            @hashfunc = Digest::SHA512.new
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−            @hashname = method.upcase
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−          else
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−            # default to MD5
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−                  @hashfunc = Digest::MD5.new
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−                  @hashname = "MD5"
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−          end
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−          @pwd = pwd
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−  end
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−
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−
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−	def hashname
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−		@hashname
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−	end
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−
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−	# Compute hash code
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−	def hashsum
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−		return @hashfunc.hexdigest(@pwd)
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−	end
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−end