I think we should kill the elgamal 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 elgamal-signature (10 questions)
How should we remove it?
- Edit all elgamal questions to remove this tag and add one of the specific tags as necessary
- Remove elgamal from the signature questions, then rename the tag to elgamal-encryption. This requires fewer edits, but has a higher risk of mistakes.
Related but separate question: Is the hashed-elgamal tag worthwhile? If yes, what should its wiki description be?