cuckoo
LDOGE
cuckoo | LDOGE | |
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8 | 2 | |
813 | 39 | |
- | - | |
4.3 | 8.8 | |
6 months ago | 11 days ago | |
C++ | C++ | |
GNU General Public License v3.0 or later | MIT License |
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cuckoo
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mCaptcha: Open-source proof-of-work captcha for websites
Asymmetric PoW algorithms, such as Cuckoo Cycle [1] or the poorly named Equihash [2] (which is not a hash function) do not lend themselves to password hashing, since a given instance can have 0 or 1 or many solutions.
[1] https://github.com/tromp/cuckoo
[2] https://en.wikipedia.org/wiki/Equihash
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Crypto: My Part in Its Downfall
The full technical report describing the LOCKSS forerunner to bitcoin may be downloaded at [1]. Interestingly, LOCKSS used a memory bound Proof-of-Work, where both prover and verifier perform a random walk in a 1GB table. But the prover had to do this many times, to obtain some final hash with many leading zeroes. This was before the invention of asymmetric PoW systems like Cuckoo Cycle [2] where the PoW can be verified with no memory use.
[1] https://www.researchgate.net/publication/31869581_Preserving...
[2] https://github.com/tromp/cuckoo
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Is it possible a PoW that runs arbitrary algorithms?
A non-hashcash-style PoW scheme is Cuck(at)ooCycle.
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POW Captcha: a lightweight, self-hosted proof-of-work captcha
The use of scrypt as underlying hash function is a rather poor choice though, as scrypt's memory hardness makes PoW verification unnecessarily expensive.
It's perfectly possible to make a memory hard PoW that's instantly verifiable, by using something other than hashcash. Examples include Cuckoo Cycle [1], and Equihash [2].
[1] https://github.com/tromp/cuckoo
[2] https://en.wikipedia.org/wiki/Equihash
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Memory-bound trapdoor proof of work
Non-Solution #8: Cuckoo Cycle https://github.com/tromp/cuckoo Why: At least a few people have looked at it, and any attacker is far more likely to directly attack the blockchain itself, than my server (which doesn't get involved with the blockchain) Why not: The "mathematical specification" https://github.com/tromp/cuckoo/blob/master/doc/mathspec is woefully inadequate, their "C spec" focuses more on ASCII art than actual readability https://github.com/tromp/cuckoo/blob/master/doc/spec and as https://handshake.org/files/handshake.txt points out, cannot be easily adjusted in difficulty. Also, I would need to implement it from scratch, but I guess I'll have to do that anyway.
- IBM Creates First 2nm Chip
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Ask HN: What Kind of Threat Does Quantum Computing Pose to Bitcoin?
The hashcash proof-of-work scheme that bitcoin uses is vulnerable to Grover's quantum search algorithm, that can find a solution in the 2^76 search space for the current target difficulty in roughly sqrt(2^76) = 2^38 quantum hashing steps, for a 2^38 factor speedup.
Other proof-of-work schemes (e.g. finding cycles in graphs [1]) are not vulnerable to quantum speedup.
[1] https://github.com/tromp/cuckoo
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Theoretically, how much hashing power could a 'quantum computer' generate? And is any superpower close to having one yet, that we know of?
[1] https://github.com/tromp/cuckoo
LDOGE
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Main website and info for Litedoge (LDOGE)
Litedoge aka LDOGE, a proof of stake 2.0 cryptocurrency, 2 min confirm time, 500 coins per stake interest. http://litedogeofficial.org the fast fun crypto supported on multiple chat platforms. matrix, reddit, libra IRC, telegram, discord all have access to ldoge blockchain through bill48105 tip bot https://bill48105.github.io/wallet/ and tip.cc tip bot https://tip.cc/currencies/litedoge
- mandatory wallet update 3.6.0.1 https://github.com/ldoge/LDOGE/releases/tag/v3.6.0.1 new nodes, wallet fixes, new checkpoints
What are some alternatives?
nodeeditor - Qt Node Editor. Dataflow programming framework
ADON - ADON Core wallet.
osqp - The Operator Splitting QP Solver
coinyecoin - Latest build of the Coinye wallet.
aperture - ⚡️L402 (Lightning HTTP 402) Reverse Proxy ⚡️
vroom - Vehicle Routing Open-source Optimization Machine
2captcha-php - PHP package for easy integration with the API of 2captcha captcha solving service to bypass recaptcha, hcaptcha, funcaptcha, geetest and solve any other captchas.
Atomic - denis bider's Atomic library (C++, for Windows)
aperture - Rate limiting, caching, and request prioritization for modern workloads
bitcoin - Bitcoin! Bitcoin! Bitcoin! Q: Dear sir, how do I get rich in bits-coin? A: If we all buy Bitcoin from one another at ever higher prices we'll all be rich beyond our wildest dreams. To the moon! Number go up!