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https://github.com/saymrwulf/pasta_curves-source.git
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9999964d17
We re-introduce the Tonelli-Shank square root algoritm that was removed in zcash/halo2#120, to use in no-std mode (the table-based impl requires allocations, and also uses 29kiB of memory which is a problem for constrained environments that typically need no-std).
43 lines
920 B
Rust
43 lines
920 B
Rust
//! Implementation of the Pallas / Vesta curve cycle.
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#![no_std]
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#![cfg_attr(docsrs, feature(doc_cfg))]
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#![allow(unknown_lints)]
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#![allow(clippy::op_ref, clippy::same_item_push, clippy::upper_case_acronyms)]
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#![deny(broken_intra_doc_links)]
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#![deny(missing_debug_implementations)]
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#![deny(missing_docs)]
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#![deny(unsafe_code)]
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#[cfg(any(feature = "std", test))]
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#[macro_use]
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extern crate std;
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#[macro_use]
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mod macros;
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mod curves;
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mod fields;
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pub mod arithmetic;
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pub mod pallas;
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pub mod vesta;
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#[cfg(feature = "std")]
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mod hashtocurve;
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pub use curves::*;
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pub use fields::*;
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pub extern crate group;
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#[cfg(feature = "std")]
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#[test]
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fn test_endo_consistency() {
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use crate::arithmetic::{CurveExt, FieldExt};
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use group::Group;
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let a = pallas::Point::generator();
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assert_eq!(a * pallas::Scalar::ZETA, a.endo());
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let a = vesta::Point::generator();
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assert_eq!(a * vesta::Scalar::ZETA, a.endo());
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}
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