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73 lines
1.6 KiB
Ruby
73 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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#--
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# = Ruby-space predefined Digest subclasses
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#
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# = Info
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# 'OpenSSL for Ruby 2' project
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# Copyright (C) 2002 Michal Rokos <m.rokos@sh.cvut.cz>
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# All rights reserved.
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#
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# = Licence
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# This program is licensed under the same licence as Ruby.
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# (See the file 'LICENCE'.)
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#++
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module OpenSSL
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class Digest
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# Return the hash value computed with _name_ Digest. _name_ is either the
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# long name or short name of a supported digest algorithm.
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#
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# === Examples
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#
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# OpenSSL::Digest.digest("SHA256", "abc")
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#
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# which is equivalent to:
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#
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# OpenSSL::Digest.digest('SHA256', "abc")
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def self.digest(name, data)
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super(data, name)
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end
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%w(MD4 MD5 RIPEMD160 SHA1 SHA224 SHA256 SHA384 SHA512).each do |name|
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klass = Class.new(self) {
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define_method(:initialize, ->(data = nil) {super(name, data)})
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}
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singleton = (class << klass; self; end)
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singleton.class_eval{
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define_method(:digest) {|data| new.digest(data)}
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define_method(:hexdigest) {|data| new.hexdigest(data)}
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}
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const_set(name.tr('-', '_'), klass)
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end
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# Deprecated.
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#
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# This class is only provided for backwards compatibility.
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# Use OpenSSL::Digest instead.
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class Digest < Digest; end # :nodoc:
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deprecate_constant :Digest
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end # Digest
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# Returns a Digest subclass by _name_
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#
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# require 'openssl'
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#
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# OpenSSL::Digest("MD5")
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# # => OpenSSL::Digest::MD5
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#
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# Digest("Foo")
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# # => NameError: wrong constant name Foo
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def Digest(name)
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OpenSSL::Digest.const_get(name)
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end
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module_function :Digest
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end # OpenSSL
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