# Parameter Generation Ceremony Discussion **URL:** \ **Category:** Education\ **Created:** [November 2, 2016, 9:04pm UTC](https://forum.zcashcommunity.com/t/parameter-generation-ceremony-discussion/6691 "2016-11-02T21:04:17Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![ebfull](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/ebfull/32/34_2.png) [@ebfull](https://forum.zcashcommunity.com/u/ebfull)\ **Post date:** [November 2, 2016, 9:04pm UTC](https://forum.zcashcommunity.com/t/parameter-generation-ceremony-discussion/6691/1 "2016-11-02T21:04:17Z")
This thread will contain information, resources and discussion related to the parameter generation ceremony that we performed to create the Zcash 1.0 “Sprout” public parameters. > **[GitHub - zcash/mpc: zk-SNARK parameter multi-party computation protocol](https://github.com/zcash/mpc)** > > zk-SNARK parameter multi-party computation protocol - GitHub - zcash/mpc: zk-SNARK parameter multi-party computation protocol > **[The Design of the Ceremony - Electric Coin Company](https://electriccoin.co/blog/the-design-of-the-ceremony/)** > > Update: Read our full summary of what took place in the Zcash Parameter Generation Ceremony. The Toxic Waste, and Other \[…\] ---
**Author:** ![ebfull](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/ebfull/32/34_2.png) [@ebfull](https://forum.zcashcommunity.com/u/ebfull)\ **Post date:** [November 2, 2016, 9:04pm UTC](https://forum.zcashcommunity.com/t/parameter-generation-ceremony-discussion/6691/2 "2016-11-02T21:04:55Z")
We have now published the MPC whitepaper describing the protocol and the proof: [mpc/whitepaper.pdf at master · zcash/mpc · GitHub](https://github.com/zcash/mpc/blob/master/whitepaper.pdf) ---
**Author:** ![zooko](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/zooko/32/32232_2.png) [@zooko](https://forum.zcashcommunity.com/u/zooko)\ **Post date:** [November 2, 2016, 9:08pm UTC](https://forum.zcashcommunity.com/t/parameter-generation-ceremony-discussion/6691/3 "2016-11-02T21:08:58Z")
Our analysis of the Parameter Generation Ceremony shows anomalous behavior of a phone owned by a journalist who was observing one of the six locations. Our current leading hypothesis is that this indicates an attempt to spy on us or to compromise the Parameter Generation Ceremony. No anomalies were observed in the air-gapped compute node in that location, nor in any other location. We are analyzing this anomaly and will post our data and results. ---
**Author:** ![5a1t](https://avatars.discourse-cdn.com/v4/letter/5/b487fb/32.png) [@5a1t](https://forum.zcashcommunity.com/u/5a1t)\ **Post date:** [November 2, 2016, 9:12pm UTC](https://forum.zcashcommunity.com/t/parameter-generation-ceremony-discussion/6691/4 "2016-11-02T21:12:29Z")
@zooko Curious what anomalous behaviour was observed, and how such behavior was detected post ceremony. Or was it observed during the ceremony? Also, is there a particular reason why Matthew Green was not a participant in the ceremony? Thank you for continuing to share details about this very important (and interesting) part of Zcash with us. 🙂 ---
**Author:** ![zooko](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/zooko/32/32232_2.png) [@zooko](https://forum.zcashcommunity.com/u/zooko)\ **Post date:** [November 2, 2016, 9:28pm UTC](https://forum.zcashcommunity.com/t/parameter-generation-ceremony-discussion/6691/5 "2016-11-02T21:28:49Z")
Will you remind me to answer these questions once we have results to report? Sorry, but I’ve gotta put you off for now. ---
**Author:** ![5a1t](https://avatars.discourse-cdn.com/v4/letter/5/b487fb/32.png) [@5a1t](https://forum.zcashcommunity.com/u/5a1t)\ **Post date:** [November 2, 2016, 9:31pm UTC](https://forum.zcashcommunity.com/t/parameter-generation-ceremony-discussion/6691/6 "2016-11-02T21:31:39Z")
No problem, I understand. ---
**Author:** ![Shawn](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/shawn/32/187_2.png) [@Shawn](https://forum.zcashcommunity.com/u/Shawn)\ **Post date:** [November 2, 2016, 9:33pm UTC](https://forum.zcashcommunity.com/t/parameter-generation-ceremony-discussion/6691/7 "2016-11-02T21:33:57Z")
Pinned on November 2, 2016, 9:33pm UTC ---
**Author:** ![zooko](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/zooko/32/32232_2.png) [@zooko](https://forum.zcashcommunity.com/u/zooko)\ **Post date:** [December 13, 2016, 6:12pm UTC](https://forum.zcashcommunity.com/t/parameter-generation-ceremony-discussion/6691/8 "2016-12-13T18:12:54Z")
Lots of updates: > **[Parameter Generation - Zcash](https://z.cash/technology/paramgen/)** > > Background In May of 2022, Zcash will begin using the Halo 2 proving system, which removes reliance on a complex \[…\] > **[The Crazy Security Behind the Birth of Zcash, the Inside Story](https://spectrum.ieee.org/the-crazy-security-behind-the-birth-of-zcash)** > > Zcash, the new anonymous cryptocurrency, was born in a cloak-and-dagger cocoon of digital secrecy. There was just one little problem