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nucypher
pyUmbral
Python2018–2018
nucypher / pyUmbral

pyUmbral

NuCypher's reference implementation of Umbral (threshold proxy re-encryption) using OpenSSL and Cryptography.io

Security & PrivacyLearning & ReferenceNetworking
Explore on GitHubRead Hacker News discussions
2Distinct people
4Mentions
0Explicit recommenders
296GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

NuCypher's reference implementation of Umbral (threshold proxy re-encryption) using OpenSSL and Cryptography.io

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:03:16 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by week4 dated mentions

Observed mentions: 2018-04-01 05:15:19 UTC to 2018-08-01 17:41:26 UTC. Weeks start Monday, UTC.

01232018-03-26 00:00:00 UTC to 2018-04-02 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsMar 262018-04-02 00:00:00 UTC to 2018-04-09 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-04-09 00:00:00 UTC to 2018-04-16 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-04-16 00:00:00 UTC to 2018-04-23 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-04-23 00:00:00 UTC to 2018-04-30 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-04-30 00:00:00 UTC to 2018-05-07 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-05-07 00:00:00 UTC to 2018-05-14 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-05-14 00:00:00 UTC to 2018-05-21 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-05-21 00:00:00 UTC to 2018-05-28 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-05-28 00:00:00 UTC to 2018-06-04 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsMay 282018-06-04 00:00:00 UTC to 2018-06-11 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-06-11 00:00:00 UTC to 2018-06-18 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-06-18 00:00:00 UTC to 2018-06-25 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-06-25 00:00:00 UTC to 2018-07-02 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-07-02 00:00:00 UTC to 2018-07-09 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-07-09 00:00:00 UTC to 2018-07-16 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-07-16 00:00:00 UTC to 2018-07-23 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-07-23 00:00:00 UTC to 2018-07-30 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2018-07-30 00:00:00 UTC to 2018-08-06 00:00:00 UTC (exclusive): 3 mentions; 1 submissions, 2 commentsJul 30

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Mar 262018-03-26 00:00:00 UTC2018-04-02 00:00:00 UTC101
Apr 22018-04-02 00:00:00 UTC2018-04-09 00:00:00 UTC000
Apr 92018-04-09 00:00:00 UTC2018-04-16 00:00:00 UTC000
Apr 162018-04-16 00:00:00 UTC2018-04-23 00:00:00 UTC000
Apr 232018-04-23 00:00:00 UTC2018-04-30 00:00:00 UTC000
Apr 302018-04-30 00:00:00 UTC2018-05-07 00:00:00 UTC000
May 72018-05-07 00:00:00 UTC2018-05-14 00:00:00 UTC000
May 142018-05-14 00:00:00 UTC2018-05-21 00:00:00 UTC000
May 212018-05-21 00:00:00 UTC2018-05-28 00:00:00 UTC000
May 282018-05-28 00:00:00 UTC2018-06-04 00:00:00 UTC000
Jun 42018-06-04 00:00:00 UTC2018-06-11 00:00:00 UTC000
Jun 112018-06-11 00:00:00 UTC2018-06-18 00:00:00 UTC000
Jun 182018-06-18 00:00:00 UTC2018-06-25 00:00:00 UTC000
Jun 252018-06-25 00:00:00 UTC2018-07-02 00:00:00 UTC000
Jul 22018-07-02 00:00:00 UTC2018-07-09 00:00:00 UTC000
Jul 92018-07-09 00:00:00 UTC2018-07-16 00:00:00 UTC000
Jul 162018-07-16 00:00:00 UTC2018-07-23 00:00:00 UTC000
Jul 232018-07-23 00:00:00 UTC2018-07-30 00:00:00 UTC000
Jul 302018-07-30 00:00:00 UTC2018-08-06 00:00:00 UTC312

What Hacker News says

4 sources
tuxxy·Aug 1, 2018
We have a more feature-complete reference implementation of Umbral called pyUmbral you may want to look into[0]. We (NuCypher) are using this to build a blockchain privacy layer in the form of a decentralized key management system similar to AWS KMS or Google Cloud KMS. You can read our paper that describes our use-case here: https://www.nucypher.com/whitepapers/english.pdf 0. https://github.com/nucypher/pyUmbral
In Show HN: GoUmbral – ECC arithmetic layer, and soon-to-be proxy re-encryption lib
tuxxy·Apr 1, 2018
This is great! The privacy problem is especially interesting because I work on a distributed key management system called NuCypher. We use proxy re-encryption to do this and have a distributed network of nodes that perform the actual re-encryption on split keys. If anyone is reading this article and wants to work on this problem, we have a split-key threshold PRE scheme called Umbral that we used to decentralize the key management part. The link is below: https://github.com/nucypher/pyUmbral
In Blueprint of a distributed social network on IPFS, and its problems

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