From: "drbrain (Eric Hodel)" <drbrain@...7.net>
Date: 2012-08-02T07:30:39+09:00
Subject: [ruby-core:46920] [ruby-trunk - Feature #6819] OpenSSL::Digest.new should return an instance of the chosen subclass


Issue #6819 has been updated by drbrain (Eric Hodel).

File openssl.digest.module_function.patch added

I agree.  I have attached a patch to implement your suggestion.
----------------------------------------
Feature #6819: OpenSSL::Digest.new should return an instance of the chosen subclass
https://bugs.ruby-lang.org/issues/6819#change-28583

Author: drbrain (Eric Hodel)
Status: Open
Priority: Normal
Assignee: MartinBosslet (Martin Bosslet)
Category: ext
Target version: 2.0.0


=begin
(({OpenSSL::Digest.new})) allows you to create a digest given the digest name:

  digester = OpenSSL::Digest.new "SHA1"
  digester.update "hello"
  # ���

The digester returned is of class (({OpenSSL::Digest})) regardless of the input type.

I would like this changed so that it returns the specific subclass of (({OpenSSL::Digest})):

  digester = OpenSSL::Digest.new "SHA1"
  digester.class #=> OpenSSL::Digest::SHA1

When multiple digests are created this makes it easier to distinguish the type of digest you are working with.

This will also make (({OpenSSL::Digest.new})) behave similarly to (({Digest})):

  digester = Digest("SHA1").new
  digester.class #=> Digest::SHA1

=end


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