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Based on our record, Khan Academy seems to be a lot more popular than Helios Voting. While we know about 106 links to Khan Academy, we've tracked only 4 mentions of Helios Voting. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
This is basically how electronic voting systems like Helios work [https://vote.heliosvoting.org/]. They use additively homomorphic encryption to produce a tally for an election. Obviously a lot more stuff needs to be added to make this fully secure as an e-voting system [e.g. Zero-Knowledge proofs need to be added to the votes to ensure someone votes for a valid candidate, the decryption functionality needs to... Source: over 1 year ago
It's a beautiful piece of theory, but when the IACR tried to build a voting scheme based on that to elect their board annually (https://vote.heliosvoting.org/), they got caught by a non-obvious bear trap when you make the whole thing non-interactive (which is the way this is mostly used in practice). Details here: https://eprint.iacr.org/2016/771 Basically, if you do this with a hash function, you need to HASH ALL... - Source: Hacker News / over 1 year ago
There are a few good open systems used in production today, https://vote.heliosvoting.org/ is one. That said, there has been a huge amount of relevant cryptography research lately, particularly in the zero knowledge space, which unlocks more coverage of desirable security properties (less trusting of centralized providers, more privacy, more auditability, more deniability, etc). Source: almost 2 years ago
While not built for the purpose of voting, there have occasionally been some coin-weighted polls using the Zcash blockchain. The ability to post encrypted and immutable transactions, and selectively share viewing keys has interesting possibilities, certainly. That said, we in the Zcash community have usually used another system when holding secret-ballot votes within our community: Helios [1] [1]... - Source: Hacker News / over 2 years ago
You don't say how old she is. There are many programs you can enroll her in BUT if she wants to work at her own pace you can look online for what your state/municipality expects a child to know in each year. You can use workbooks, resources like CK-12 for science and video instruction or Khan Academy. Source: 7 months ago
Khan Academy is your best friend, you can also use openstax if you like reading more. Supplement with a quality textbook and video courses once you reach Algebra 1, this site and r/learnmath have good recommendations. And most importantly practice. Source: 8 months ago
Khanacademy.org Do a search for "investing" and you'll get dozens of free "courses". Source: 12 months ago
Khanacademy.org - seriously - everything from basic integers and counting to advanced calculus - all at whatever pace you need. Source: 12 months ago
However, the math instruction that worked for me (I suddenly had to teach upper level math to expelled students in a self-contained class - and didn't know anything past Alg 1) was khanacademy.org, a free online program. I also learned chemistry and physics when those became required. Source: about 1 year ago
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