Zcash gets a mention!


Does the Zcash team’s experience with code implementation of zk-snarks give them any kind of leg-up on the competition regarding implementation of this tech? My very limited understanding is that this advancement, if implemented, would be a significant improvement on zk-snark based encryption. My real question this becomes: with Zcash still in its infancy/ in he process of realizing the full potential of zk-snarks , what are the odds of another group implementing this tech and rendering is obsolete?


eli’s on the zcash team


You know if the day comes, the dev team can change zcash, obsolescence is not the issue and you shouldn’t be worried at all. If anything this paper only helps to spread knowledge of zero knowledge, weird
Edit- an excerpt, section 1.2, page 8

Looking forward, ZK-STARKs could replace ZK-SNARKs and achieve the fungibility and confidentiality of Zcash™,
transparently. Currently, ZK-SNARKs are roughly 1000× shorter than ZK-STARK proofs so replacing ZKSNARKs with STARKs calls for more research to either shorten proof length, or aggregate and compress
several ZK-STARK proofs using incrementally verifiable computation [105] (cf. [29]).


Note that this approach to zk-STARKs using interactive oracle proofs and hash-based cryptography isn’t the only one; there are also discrete-log-based transparent NIZK argument-of-knowledge systems such as Hyrax: https://eprint.iacr.org/2017/1132 . The latter are not post-quantum knowledge-sound (and also not “succinct” in the same sense of having logarithmic-sized proofs, like PHGR13 or Groth16 zk-SNARKs).


Yes, or any similar tech. Remember that the improvement in circuit size for Sapling (of more than a factor of 16) is almost independent of the proving system, as long as it can prove Quadratic Arithmetic Programs over a prime field.



“Upside Break on the Way? Zcash Eyes Gains Against Bitcoin“




Thanks Shawn, I thoroughly enjoyed reading that. A very different look from others in Europe (I had no idea there was a bar in Paris that takes BTC and ZEC). I will have to visit it when I am there next year.

Liked this plug!! On October 17, JP Morgan Chase, the largest bank in the United States, integrated ZCash’s privacy technology, zk-SNARK


Two really decent articles





Those are great, not sure what a mish-mash is exactly but whatever, the second reads like stereo instructions! :zcash:
Edit-less offensive than hodgepodge or gaggle, this motley crew of a dev :heartpulse:


article of 12 days ago from MIT:

The mind-bending math of zero-knowledge proofs makes it possible to prove something (say, that you are older than 18) without revealing anything else (like your precise age). A currency called Zcash already uses this to make truly anonymous transactions possible. JPMorgan Chase has even adopted it for its “enterprise blockchain” system. And thanks to its latest software update, Ethereum’s developers can now implement zero-knowledge capability too. It would not be surprising if the next year were to yield applications of zero-knowledge proofs that we haven’t yet imagined. Get ready: things could be about to get very weird—and very private.


This is older news (OCT-2017) but first I’ve seen it.

Russian Settlement Depository (NSD) work with #Zcash & zkSNARKS for new confidential secure voting system: https://t.co/fRZm7FQAdy


I think first any of us have seen that!


that’s interesting news… first time i’ve seen this. more i think about this… kind-of shocking this is the first time i’ve heard this. seems-like big news to me.


Can’t cite an article, but my dad texted me to let me know that Zcash was mentioned in passing this morning on CNBC’s Squawk Box by Andrew Sorkin. :raised_hands: I got the impression the coverage was generally favorable, though brief.

Update: 1/18 afternoon brought a lengthier (1 minute or so) discussion of privacy focused cryptocurrencies; Monero and Zcash were specifically mentioned. Also on CNBC.



Yea i think thats a big precursor too


At first mention. 2:00 min
Selective disclosure at 2:51

Apparently Spencers on board! Explained well. Final sentance of interview, quote " I think thats (selective disclosure) really the holy grail of privacy coins."
And then some old people yell at each other for a second.