Post
Topic
Board Announcements (Altcoins)
Re: [ANN] Spectre [XSPEC] MANDATORY UPDATE TO V1.1 NOW !!!!
by
y_0
on 27/01/2017, 02:28:47 UTC
You can't stop rumor but sometimes the truth must make a firm stand.
This tells it all. If you disagree, prove me wrong Cheesy
http://i65.tinypic.com/1zwgkdk.png
You are incorrect in certain claims with respect to being the first token that integrates TOR and ring signatures.  Yes, indeed it is the most anonymous, but all these features were done by a different token first.  Don't believe me?

I invite you to read the thread proving this claim ... https://bitcointalk.org/index.php?topic=1378922.0

Not to mention that their dev team managed to fix the Shadow devs flaw in their algorithm for generating a Key Image that is necessary in a ring signature scheme after it was proven to be de-anonymized by Shen Noether ...

The proposed fix by Shadow was even shown to the Shadow Team by one of the Eclipse Devs to be a singular point of weakness that could pose security flaws if / when ECDLP is breakable.

After the Eclipse Crypto team launched their coin and were polite enough to point out the weakness of Shadow's proposed method on their thread (the post and solution was subsequently deleted, but put up on the Eclipse thread for future posterity), a few days later, the Shadow Team incorporated the solution implemented by the Eclipse Crypto team.

In fact, XSPEC uses the same methodology of the Try-And-Increment method in their code, too (albeit, in a different way, as XSPEC's code uses EC_POINT_set_compressed_coordinates_GFp instead of testing if x^3 + 7 is a quadratic residue using secp256k1_ge_set_xquad_var as Eclipse Crypto does).  

But the idea remains the same. Some value 'x' is tested to see if the corresponding (x,y) is a point on the elliptic curve. In the case of secp256k1, that is to say, a test is done whether y^2 = x^3 + 7 modulo p, with p being the characteristic of the field, is satisified (meaning both sides are equal when you plug in). If it's not, increase x by 1 and try again.  Although, Eclipse Crypto currently does an increase by triangular numbers (that is, the increment on the j'th iteration is j instead of 1), although this doesn't affect the validity of their modified implementation of Try-And-Increment.

Silence from the Eclipse Crypto devs, but the token is coming up on their one year anniversary in one month.  Might be something coming up soon Wink.  

Who am I to say?