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