Minimal implementation of the Mimblewimble protocol.
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[SYNC PERFORMANCE] Replace header proof serialisation with more efficient algorithm (#3670)
* replace bitvec with more efficient bitpack algorithm

* optimise proof_unpack_len

* move proof pack length calculation

* small refactor

* integrate suggestions in #3670

* finish compressing compression function

* remove ordering cmp from pack function

* remainder fix for new logic

* remove println statements

* remove ordering import warning
2021-12-06 16:35:23 +00:00
.cargo windows cargo settings (#2632) 2019-02-26 16:48:45 +00:00
.ci Change connection name for CI Release (#3653) 2021-08-18 15:45:52 +02:00
.github Rename Floonet to Testnet (#3431) 2020-10-07 09:36:02 -04:00
.hooks Update copyright year to 2021 (#3592) 2021-03-10 10:14:48 -05:00
api Fixmmr part2 (#3666) 2021-11-26 11:25:10 +00:00
chain [SYNC PERFORMANCE] Replace header proof serialisation with more efficient algorithm (#3670) 2021-12-06 16:35:23 +00:00
config bump to 5.2.0-alpha.1 on master (#3652) 2021-08-19 09:06:52 +02:00
core [SYNC PERFORMANCE] Replace header proof serialisation with more efficient algorithm (#3670) 2021-12-06 16:35:23 +00:00
doc Spelling Improvements (#3642) 2021-05-13 14:07:14 -04:00
etc Update copyright year to 2021 (#3592) 2021-03-10 10:14:48 -05:00
keychain Update digest, hmac, ripemd160, sha2 and pbkdf2 crates (#3655) 2021-11-02 15:40:31 +00:00
p2p bump to 5.2.0-alpha.1 on master (#3652) 2021-08-19 09:06:52 +02:00
pool Rust 2021 Macro Warning Cleanup (#3658) 2021-11-02 15:10:01 +00:00
servers bump to 5.2.0-alpha.1 on master (#3652) 2021-08-19 09:06:52 +02:00
src Rust 2021 Macro Warning Cleanup (#3658) 2021-11-02 15:10:01 +00:00
store Fixmmr part2 (#3666) 2021-11-26 11:25:10 +00:00
util bump to 5.2.0-alpha.1 on master (#3652) 2021-08-19 09:06:52 +02:00
.editorconfig [1.1.0] Merge master into 1.1.0 (#2720) 2019-04-01 11:47:48 +01:00
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Cargo.lock Update digest, hmac, ripemd160, sha2 and pbkdf2 crates (#3655) 2021-11-02 15:40:31 +00:00
Cargo.toml bump to 5.2.0-alpha.1 on master (#3652) 2021-08-19 09:06:52 +02:00
CODE_OF_CONDUCT.md Update Code of Conduct (#3447) 2020-09-22 17:15:37 +01:00
CONTRIBUTING.md Rename Floonet to Testnet (#3431) 2020-10-07 09:36:02 -04:00
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rustfmt.toml Update hyper/tokio/futures dependencies (#3214) 2020-02-18 23:45:27 +01:00
SECURITY.md fix: correct typo in SECURITY.md (#3462) 2020-10-08 09:46:48 -04:00

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Grin

Grin is an in-progress implementation of the Mimblewimble protocol. Many characteristics are still undefined but the following constitutes a first set of choices:

  • Clean and minimal implementation, and aiming to stay as such.
  • Follows the Mimblewimble protocol, which provides hidden amounts and scaling advantages.
  • Cuckoo Cycle proof of work in two variants named Cuckaroo (ASIC-resistant) and Cuckatoo (ASIC-targeted).
  • Relatively fast block time: one minute.
  • Fixed block reward over time with a decreasing dilution.
  • Transaction fees are based on the number of Outputs created/destroyed and total transaction size.
  • Smooth curve for difficulty adjustments.

To learn more, read our introduction to Mimblewimble and Grin.

Status

Grin is live with mainnet. Still, much is left to be done and contributions are welcome (see below). Check our mailing list archives for the latest status.

Contributing

To get involved, read our contributing docs.

Find us:

Getting Started

To learn more about the technology, read our introduction.

To build and try out Grin, see the build docs.

Philosophy

Grin likes itself small and easy on the eyes. It wants to be inclusive and welcoming for all walks of life, without judgement. Grin is terribly ambitious, but not at the detriment of others, rather to further us all. It may have strong opinions to stay in line with its objectives, which doesn't mean disrespect of others' ideas.

We believe in pull requests, data and scientific research. We do not believe in unfounded beliefs.

Credits

Tom Elvis Jedusor for the first formulation of Mimblewimble.

Andrew Poelstra for his related work and improvements.

John Tromp for the Cuckoo Cycle proof of work.

License

Apache License v2.0.