He's referring to the previous work of Joux, such as this: https://eprint.iacr.org/2013/095.pdf.
"Today's" result is an improvement over that and previous works. So what we know is that attacks on curves over GF_{2^m} are getting better.
"Today's" result is an improvement over that and previous works. So what we know is that attacks on curves over GF_{2^m} are getting better.
What do you mean? I don't doubt you are right but the article doesn't seem to mention that anywhere.