@bascule @matthew_d_green @JacksDismay Not so. That curve is birationally equivalent to Curve25519. It's the same curve in disguise.
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Replying to @pbarreto
@pbarreto@matthew_d_green@JacksDismay you could reimplement Curve25519 in terms of Ed25519 to get the perf benefits but why bother?2 replies 0 retweets 0 likes -
Replying to @bascule
@bascule@pbarreto@matthew_d_green@JacksDismay DH wants Montgomery repres, sign wants Edwards; fixed basepoint scalar mult. best w Edwards1 reply 0 retweets 0 likes -
Replying to @hyperelliptic
@hyperelliptic so, in your opinion, no reason to use Curve25519 over Ed25519 for a DSA? /cc@pbarreto@matthew_d_green@JacksDismay1 reply 0 retweets 0 likes -
Replying to @bascule
@bascule@pbarreto@matthew_d_green@JacksDismay it's the same curve, it's one math object. Use Ed representation for signatures as in EdDSA2 replies 1 retweet 0 likes -
Replying to @hyperelliptic
@hyperelliptic@pbarreto@matthew_d_green@JacksDismay okay, so you're saying brand it "Curve25519" even though you mean EdDSA?1 reply 0 retweets 0 likes
Tony Arcieri Retweeted Tony Arcieri
@tqbf this was definitely the source of the confusion: https://twitter.com/bascule/status/393221414775312384 … /cc @hyperelliptic
Tony Arcieri added,
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