Re: [zapps-wg] Sapling MPC Random Beacon

Thanks Jason! I hope to make an announcement in the coming week. Sean On Sat, Aug 4, 2018 at 8:57 AM, Jason Davies wrote: > At Sean's request, I ran the computation for this random beacon using my > hardware-accelerated implementation on an AMD Ryzen CPU running at 3.8GHz. > > The seed value

[zapps-wg] Sapling MPC Random Beacon

Please see the attached random beacon announcement. Sean -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hi all! I'm happy to announce that the Zcash "Sapling" MPC is nearly finished! I'd like to thank the roughly 94 participants that contributed their time and effort to making Zcash safer.

Re: [zapps-wg] Sapling MPC

5/03/2018 09:43 PM, Sean Bowe via zapps-wg wrote: >> Zcash's Sapling upgrade is coming, and we're doing an MPC for its >> zk-SNARK parameters. This MPC uses the Powers of Tau parameters to >> construct parameters for three different circuits: a Sprout circuit, >> and tw

[zapps-wg] Sapling MPC

Zcash's Sapling upgrade is coming, and we're doing an MPC for its zk-SNARK parameters. This MPC uses the Powers of Tau parameters to construct parameters for three different circuits: a Sprout circuit, and two Sapling circuits (one for inputs, one for outputs). The code for participating (and

[zapps-wg] Completion of the Powers of Tau

-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hey everyone, I'm proud to announce that the Powers of Tau ceremony has been concluded. The final parameters are available over BitTorrent: https://s3-us-west-2.amazonaws.com/powersoftau-transcript/powersoftau.torrent SHA256: phase1radix2m0:

Re: [zapps-wg] Attestation

Thanks! I confirmed that you are John Dobbertin from the original ceremony. Sean On Sun, Mar 25, 2018 at 7:19 PM, John Dobbertin via zapps-wg wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA512 > > > Based on my participation in the original ceremony, I

Re: [zapps-wg] Random Beacon Announcement

018 at 03:54:42PM -0600, Sean Bowe via zapps-wg wrote: >> Attached is the (signed) announcement of the random beacon. >> >> Also, it's been timestamped using OpenTimestamps. > > It's important to note that the OTS proof added little, if any, security to > this random beacon,

[zapps-wg] Cut-off date for Powers of Tau Contributions

We're almost finished with the Powers of Tau ceremony! On March 15 no new contributions will be accepted. If you still want to participate, you will need to contact Jason Davies ASAP and arrange for a time. I'll be making an announcement about the random beacon soon. Thanks, Sean

[zapps-wg] Powers of Tau Attestation

I participated in the Powers of Tau ceremony, and here's my response file hash (BLAKE2b): db1eb34d 1f153f0e 32b287d7 4e7a81a2 49257944 5f9df1c4 7daf3fcd a7f3200a 2ab664b3 3c2b7dbc 1f46758f 4b1eb840 ff6afdaf 6e488849 88e4a0fa 504f5ad8 I used an auditable process to ensure (with high probability)

Re: [zapps-wg] Randomness Beacon

ould be too evident if the > maximum reported temperature differs more than a few degrees to the one that > people actually experienced in that place). > > > El viernes, 16 de febrero de 2018 0:37:05 (CET) Sean Bowe via zapps-wg > escribió: >> The Powers of Tau security p

[zapps-wg] Switching Coordinators

-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hello! We have a new coordinator for the Powers of Tau. Jason Davies is a member of the Zcash community and has been mirroring and verifying response files as the ceremony has been ongoing. I'm happy to announce that I'm passing the coordinator

Re: [zapps-wg] Powers of Tau Attestation

Excellent! Verified it. Adding to transcript now. Sean On Thu, Feb 8, 2018 at 12:40 PM, Mark Giannullo via zapps-wg wrote: > I completed the challenge using Filippo's golang implementation: > https://github.com/FiloSottile/powersoftau > > The BLAKE2b hash of

Re: [zapps-wg] Powers of Tau Attestation by Gսѕtavо Frеdегіc೦

Thanks Gustavo! I've entered this into the transcript. Sean On Mon, Feb 5, 2018 at 7:12 PM, Gustavo Frederico via zapps-wg wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > Powers of Tau Attestation by Gսѕtavо Frеdегіc೦ > -

Re: [zapps-wg] Powers of Tau Attestation 48

Awesome job, thank you so much. :) By the way, the challenge file that Gabe used is located here: https://powersoftau-transcript.s3-us-west-2.amazonaws.com/challenge.48 I'd be curious to see why Filippo's Go code can't deserialize it. Maybe a platform specific bug? Sean On Thu, Feb 1, 2018 at

Re: [zapps-wg] The Go implementation of Powers of Tau

from source. > > About the mrustc work that I've done - I don't think the lack of determinism > is a showstopper. It just means that contributors have to compile from > source, which is time consuming. Perhaps there was some miscommunication > about that? > > >

Re: [zapps-wg] The Go implementation of Powers of Tau

Great work on this. I wonder if this implementation will be a better foundation for fully-deterministic and trustworthy builds? I am disappointed that devrandom's efforts were stymied by non-determinism in the Rust compiler. :( Sean On Sat, Jan 27, 2018 at 12:30 PM, Filippo Valsorda via zapps-wg

Re: [zapps-wg] Powers of Tau

This is excellent! I'm so impressed. I've added this to the transcript. Thanks, Sean On Wed, Jan 24, 2018 at 5:54 PM, Filippo Valsorda via zapps-wg wrote: > The BLAKE2b hash of `./response` is: > 7b55c0f5 68a8b4df 2ca14085 2e816df2 > b9a2dafe

Re: [zapps-wg] Participation in MPC process

Hi, I have people scheduled for both of those dates. If there are other dates that you'll be available let me know. Sean On Mon, Jan 22, 2018 at 9:02 AM, Team Zcash FR via zapps-wg wrote: > Hi, > We would like to participate to MPC as Zcash FR team

Re: [zapps-wg] Powers of Tau

Verified and added to transcript. Looking forward to additional info! Sean On Sat, Jan 20, 2018 at 11:08 AM, Miller, Andrew wrote: > Here's our response, should be done uploading to s3 in a moment. >

Re: [zapps-wg] Powers of Tau participation request

Sounds good! I'll be in touch. Sean On Thu, Jan 18, 2018 at 12:47 AM, Gabe Ortiz via zapps-wg wrote: > Hi, I’d like to participate. I can go anytime next week between 9am and 5pm > MST. > > -Gabe

Re: [zapps-wg] Powers of Tau Attestation

This is great! I've entered it into the transcript. Thanks! Sean On Thu, Jan 18, 2018 at 6:46 AM, Bastien Teinturier via zapps-wg < zapps...@lists.z.cash.foundation> wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > Powers of Tau Attestation > > >

Re: [zapps-wg] Powers of Tau

It does interfere with someone, but we could make it work Saturday morning if you don't expect it to take longer than the morning. Sean On Wed, Jan 17, 2018 at 9:18 PM, Andrew Miller via zapps-wg wrote: > Greetings everyone, >I have a good one planned. But

Re: [zapps-wg] Powers of Tau Round 38 Attestation

Thank you! Another fun attestation. :) Sean On Wed, Jan 17, 2018 at 7:47 PM, Ryan Close via zapps-wg wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA512 > > Powers of Tau Attestation > = > > Round: 38 > Date: 2018-1-17 > Name:

Re: [zapps-wg] Powers of Tau participation

Cool, we'll get you in likely early next month then. Sean On Wed, Jan 17, 2018 at 6:22 PM, Jan Jancar via zapps-wg wrote: > Hi all, > I would like to participate in the Powers of Tau ceremony. I have a > compute node ready, am in the UTC +2 timezone, and

Re: [zapps-wg] Participation in Powers of Tau

Great! I'll be in touch. Sean On Sun, Jan 14, 2018 at 6:07 PM, Mark Giannullo via zapps-wg wrote: > Hello, > > I would like to participate in the ceremony, when there is an opportunity. I > will have my setup prepared by tomorrow afternoon (EST) at the latest.

Re: [zapps-wg] Participate in Powers of Tau ceremony

Sure! I'll be in touch. Sean On Sat, Jan 13, 2018 at 9:14 AM, Bastien Teinturier via zapps-wg wrote: > Hey guys, > > I'm interested in participating to the Powers of Tau ceremony. > Is there a free slot anytime soon? > > Cheers, > Bastien

Re: [zapps-wg] Powers of Tau Contribution

I added this to the transcript, thank you! :) Sean On Mon, Jan 8, 2018 at 11:09 AM, James Prestwich via zapps-wg wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > I've finshed running the powers of tau contriubtion, and uploaded the > response. > >

Re: [zapps-wg] Trusted Rust build process is ready for evaluation

One quick comment from glancing: use --frozen in your invocation of cargo to prohibit network access and sort of "test" that the dependencies were vendored correctly. I was pretty satisfied when looking at trust-rust before. Obviously the non-determinism sucks, but given how much the rust compiler

Re: [zapps-wg] Powers of Tau contribution

Great! I've verified it and I'm entering it in the transcript now. It is totally okay if you don't want to use GPG, and this is acceptable. Thanks! Sean On Tue, Jan 2, 2018 at 1:12 PM, Tony Arcieri via zapps-wg wrote: > I have finished running Powers of Tau.

Re: [zapps-wg] I'd like to participate

Of course not! Boris would you like to go next? And then Tony? Sean 2017-12-23 18:55 GMT-07:00 Tony Arcieri via zapps-wg : > Ditto > > -- > Tony Arcieri

Re: [zapps-wg] Participate in MPC Ceremony

Thanks! Accepted your contribution. :) On Mon, Dec 18, 2017 at 2:33 PM, Gareth Davies via zapps-wg wrote: > Assuming everything went well I’ve also opened a PR on the > powersoftau-attestations repo to add my contribution. > > Cheers, > > Gareth > > > On

Re: [zapps-wg] Participate in MPC Ceremony

Sounds great! I'll ping you Monday. Sean On Fri, Dec 15, 2017 at 6:50 PM, Gareth Davies via zapps-wg wrote: > Hi, > > I would like to join the MPC ceremony. I am available to participate on any > day during the next week depending on when it would be required.

Re: [zapps-wg] Trusted Rust build process is ready for evaluation

That would be nice! What other obstacles are there for fully deterministic builds? It seems like it would be a good idea to toss a few features in (like that one) and make some kind of "release" binaries for people to use which have been scrutinized and built in this reproducible way. I

Re: [zapps-wg] Trusted Rust build process is ready for evaluation

Excellent work! :) new, compute, verify_transform is a good demonstration. I would verify_transform with a binary compiled with the normal Rust compiler to double-check. Sean On Tue, Dec 5, 2017 at 11:59 AM, Devrandom wrote: > Hi all, > > I was able to build rustc

Re: [zapps-wg] Request to join MPC ceremony

You're next! :) Sean On Sat, Nov 25, 2017 at 1:50 PM, Neal Conner via zapps-wg wrote: > Hello, > > Please consider this my request to join the MPC ceremony. > > I've made the necessary preparations and can compute within 24 hours of > receiving the challenge

Re: [zapps-wg] Scheduling myself for Powers of Tau

I think 27th will work great. I prefer it when people have extra time (rather than just "an evening") so that they don't feel rushed. This also tends to take way longer than an evening on average, I've found. Sean On Fri, Nov 24, 2017 at 6:05 PM, Zaki Manian via zapps-wg

Re: [zapps-wg] Powers of Tau Attestation

Thanks! Excellent job. > In an effort to overwrite the RAM and run out the battery, I started two > instances of `cargo test`. Clever. :) Sean On Thu, Nov 23, 2017 at 4:54 PM, Adam Nagel via zapps-wg wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA512

Re: [zapps-wg] Round 15

By the way, the BLAKE2b hash of the corrupted response file is 7d90a636ba0448245cadb7fde245e2f9b0556948b54f8eab51f32f1d7dbefcfdfcfe1eb9a392dac9f0b4a189295af43d9284b1b674a5908edc250cdfda5b7e63. Sean On Thu, Nov 23, 2017 at 12:29 AM, Sean Bowe wrote: > The contribution I got from

Re: [zapps-wg] Round 15

The contribution I got from Jack is corrupted; not the same hash as in Jack's attestation, and one of the points inside of it does not lie on the curve. I suspect data corruption, especially since Jack's internet connection was unreliable. I have another person scheduled about 7 hours from now,

Re: [zapps-wg] Round 15

Thanks! I'm verifying your contribution. Note that the `powersoftau` code, unmodified, does not act determinisically with the random input provided by the user, so: > - - Revealing the randomness in the unused response, after the compute node > had > been shut down, should make it possible to

Re: [zapps-wg] Attestation No 12

Looking good! I've added this response file to the transcript and will update the attestation repo soon. I am letting someone see if they can contribute tonight before Alyssa tomorrow, but if they can't we'll just move on to Alyssa. Sean On Mon, Nov 20, 2017 at 4:05 PM, Miguel Angel Marco

Re: [zapps-wg] Attestation no. 10 (Powers of Tau)

Thanks! Adrian just went too but hasn't posted an attestation yet. Right now it's Marco's turn since he got lost in the schedule over the weekend. Then, tomorrow it's Alyssa from Coindesk's turn. :) Sean On Sun, Nov 19, 2017 at 3:31 PM, Michael Dixon via zapps-wg

Re: [zapps-wg] Attestation no. 9 (Powers of Tau)

Miguel Angel Marco Buzunariz wished to go today (Sunday) but I didn't notice their email. I think we could have room in the queue today though, depending on how long Michael/Adrian take. Sean On Sat, Nov 18, 2017 at 8:59 PM, Sean Bowe wrote: > Thank you! It's always good to have

Re: [zapps-wg] Attestation no. 9 (Powers of Tau)

Thank you! It's always good to have witnesses of the process. Here's the full roster of participants this week. More volunteers are welcome, just send a request to the mailing list! Michael Dixon (Sunday) -- disclosure: a personal friend of mine! :) Adrian (Sunday) [CAN'T SAY] Gabor Alyssa

Re: [zapps-wg] available to go

Cool! I'll get you in this coming week. Sean On Sat, Nov 18, 2017 at 7:22 PM, Tommaso Pellizzari via zapps-wg wrote: >

Re: [zapps-wg] Volunteering for Powers of Tau

Sure! Should be plenty of time next week to participate. Sean On Fri, Nov 17, 2017 at 11:34 AM, Adam Nagel via zapps-wg wrote: > Hello, > > I'd like to volunteer for the ceremony, and am available next week. > > Regards, > Adam Nagel

Re: [zapps-wg] Participation next week

Great! It's definitely possible to fit you in next week. :) Sean On Fri, Nov 17, 2017 at 7:29 AM, Gabor Losonci via zapps-wg wrote: > Hello, > > I would like to participate on the next week, some day after UTC 9pm. Many > thanks Gabor >

Re: [zapps-wg] Who's next? (Powers of Tau)

rns.com > … > > Ethereum Classic Development community > Blockchain Architect > codywburns.com > -BEGIN PGP SIGNATURE- > > iJwEAQECAAYFAloO12oACgkQEfOYz7+6WMLjmAP/VpszJATk2ezn++KsBwR9+Xt4 > TEEW9xAtx4mtqrvQ/LtW3tPaGPYN5nXHHqvbqw9tYJgL/fN/IZte6W+fP/sI00Tr > 9Xr7

Re: [zapps-wg] Version of Rust

I think it is the current version (1.21). I imagine it would be possible to modify the code (and many of the dependencies) so that it could compile on a really old version too. Sean On Thu, Nov 16, 2017 at 1:35 PM, Devrandom via zapps-wg wrote: > Hi Sean, > >

Re: [zapps-wg] Powers of Tau Ceremony Proposal

Kobi Gurkan (from QED-it) wishes to go after cody. I'll double-check later. On Sat, Nov 11, 2017 at 4:12 AM, cody burns <cody.w.bu...@gmail.com> wrote: > I will go after the unnamed party. > > > On Sat, Nov 11, 2017 at 3:21 AM Sean Bowe via zapps-wg > <zapps...@lists.

Re: [zapps-wg] Test challenge generation + verifiers

I've posted two new utilities to the repository: * a `new` tool which constructs the initial challenge file * a `verify_transform` tool which loads the `challenge` and `response` files, performs verification, and outputs a `new_challenge` file Sean On Wed, Nov 8, 2017 at 8:05 PM, Peter Todd via