I read that a symmetric encryption requires a way bigger key size to have the same security as symmetric encryption with smaller keys. But why is this, and why is it so much harder to compute?

  • $\begingroup$ hmm strange, it didnt found my question when i searched for in the search bar, should i delete this question then? $\endgroup$
    – blacklight
    May 26, 2016 at 9:26
  • $\begingroup$ no need for deletion here. Just leave the question be and it will be useful as a signpost to other people. $\endgroup$
    – SEJPM
    May 26, 2016 at 9:58
  • $\begingroup$ ecc doesn't need to be "way bigger", but look at when rsa/ecc/aes were invented for clues on why $\endgroup$
    – dandavis
    May 27, 2016 at 19:13


Browse other questions tagged or ask your own question.