Quote from: Shannon on September 21, 2012, 02:41 amQuote from: LouisCyphre on September 20, 2012, 11:34 amDSA is only used for signatures. People with DSA keys usually have Elgamal encryption subkeys.https://en.wikipedia.org/wiki/ElGamal_encryptionthanks for correction, i thought it was the other way aroundwhat is the math behind elg? i would like to read more but DH models aren't something i knowI haven't really dived into the math very deeply. I know it uses the discrete logarithm problem with probabilistic encryption. If you want to delve deeper, there are links in the Wikipedia page to Taher ElGamal's papers on it.From what I understand it's at least as robust as RSA and may have a slight advantage with a few mathematical edge cases. There are some posts on this on the gnupg-users list, I think I posted a link here to one of them a while back, but I can't remember where or which thread.