I think we should kill the tag (70 questions). It currently includes two mostly unrelated schemes. The schemes were invented by the same person and are both group based crypto, but I don't think that this justifies a shared tag.

  • ElGamal encryption, which currently doesn't have a dedicated tag
  • ElGamal signatures, which already have the tag (10 questions)

How should we remove it?

  1. Edit all questions to remove this tag and add one of the specific tags as necessary
  2. Remove from the signature questions, then rename the tag to . This requires fewer edits, but has a higher risk of mistakes.

Related question: Should we have a tag for all of a specific cryptographer's inventions/contributions?

Related but separate question: Is the tag worthwhile? If yes, what should its wiki description be?

  • $\begingroup$ I just retagged a couple of question which did not have the elgamal-signature tag but are clearly about signatures. I also removed the tags from a couple of questions where ElGamal was only incidental to the actual question. $\endgroup$ Feb 28, 2014 at 18:59
  • 1
    $\begingroup$ Update: I believe that all remaining [ElGamal] questions are about encryption, though some are a bit unclear so I'm not completely sure. $\endgroup$ Feb 28, 2014 at 19:18
  • 3
    $\begingroup$ I'd go for change ElGamal to elgamal-encryption. $\endgroup$ Mar 2, 2014 at 15:36
  • $\begingroup$ The rename sounds good to me. If any signature questions end up caught in it, we can always retag them afterwards. $\endgroup$ Mar 4, 2014 at 2:06

1 Answer 1


I went ahead and performed the changes discussed in the comments. In other words, I renamed as .


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