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# bellman [](https://crates.io/crates/bellman) #
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2015-12-24 02:19:30 -08:00
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2019-09-24 02:53:52 -07:00
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`bellman` is a crate for building zk-SNARK circuits. It provides circuit traits
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and primitive structures, as well as basic gadget implementations such as
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booleans and number abstractions.
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## Roadmap
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`bellman` is being refactored into a generic proving library. Currently it is
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pairing-specific, and different types of proving systems need to be implemented
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as sub-modules. After the refactor, `bellman` will be generic using the `ff` and
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`group` crates, while specific proving systems will be separate crates that pull
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in the dependencies they require.
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2017-03-13 19:28:56 -07:00
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## License
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Licensed under either of
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2019-09-24 02:53:52 -07:00
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* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
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http://www.apache.org/licenses/LICENSE-2.0)
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2017-03-13 19:28:56 -07:00
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* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
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at your option.
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### Contribution
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Unless you explicitly state otherwise, any contribution intentionally
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submitted for inclusion in the work by you, as defined in the Apache-2.0
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license, shall be dual licensed as above, without any additional terms or
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conditions.
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